ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor564173489 <...> Warning: Permanently added '10.128.0.242' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor564173489", ["ci2-android-6-1/syz-executor564173489"], 0x7ffdca232600 /* 10 vars */) = 0 brk(NULL) = 0x555594cdd000 brk(0x555594cddd40) = 0x555594cddd40 arch_prctl(ARCH_SET_FS, 0x555594cdd3c0) = 0 set_tid_address(0x555594cdd690) = 304 set_robust_list(0x555594cdd6a0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-1/syz-executor564173489", 4096) = 43 getrandom("\xfe\x93\xf0\x1f\xa5\x8f\xb5\xc0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555594cddd40 brk(0x555594cfed40) = 0x555594cfed40 brk(0x555594cff000) = 0x555594cff000 mprotect(0x7f64782f2000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18) = 18 mkdirat(AT_FDCWD, "./trace", 0777) = 0 mount(NULL, "./trace", "tracefs", 0, NULL) = 0 openat(AT_FDCWD, "./trace/events/dwc3/dwc3_ctrl_req/inject", O_RDWR) = 3 write(3, NULL, 0) = 0 mkdirat(AT_FDCWD, "./debug", 0777) = 0 mount(NULL, "./debug", "debugfs", 0, NULL) = 0 openat(AT_FDCWD, "./debug/tracing/trace_marker", O_WRONLY) = 4 openat(AT_FDCWD, "./debug/tracing/trace_pipe", O_RDONLY|O_NONBLOCK) = 5 write(4, "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"..., 8135) = 1024 executing program [ 24.536929][ T28] audit: type=1400 audit(1789594186.413:64): avc: denied { execmem } for pid=304 comm="syz-executor564" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.547176][ T304] ------------[ cut here ]------------ [ 24.557701][ T28] audit: type=1400 audit(1789594186.413:65): avc: denied { mounton } for pid=304 comm="syz-executor564" path="/root/trace" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 24.561855][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 24.585376][ T28] audit: type=1400 audit(1789594186.413:66): avc: denied { mount } for pid=304 comm="syz-executor564" name="/" dev="tracefs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tracefs_t tclass=filesystem permissive=1 [ 24.594692][ T304] Modules linked in: [ 24.594711][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Not tainted syzkaller #0 [ 24.617606][ T28] audit: type=1400 audit(1789594186.413:67): avc: denied { search } for pid=304 comm="syz-executor564" name="/" dev="tracefs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tracefs_t tclass=dir permissive=1 [ 24.621008][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 24.629062][ T28] audit: type=1400 audit(1789594186.413:68): avc: denied { read write } for pid=304 comm="syz-executor564" name="inject" dev="tracefs" ino=7907 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tracefs_t tclass=file permissive=1 [ 24.650593][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 24.650624][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 24.661037][ T28] audit: type=1400 audit(1789594186.413:69): avc: denied { open } for pid=304 comm="syz-executor564" path="/root/trace/events/dwc3/dwc3_ctrl_req/inject" dev="tracefs" ino=7907 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tracefs_t tclass=file permissive=1 [ 24.683655][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 24.683675][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 24.683690][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 24.683703][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 24.690211][ T28] audit: type=1400 audit(1789594186.413:70): avc: denied { mount } for pid=304 comm="syz-executor564" name="/" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=filesystem permissive=1 [ 24.709187][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 24.709203][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 24.709219][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.812336][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.818918][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 24.826895][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.834865][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.842848][ T304] Call Trace: [ 24.846120][ T304] [ 24.849052][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 24.854694][ T304] ? __kasan_check_write+0x14/0x20 [ 24.859808][ T304] ? _raw_spin_lock+0x94/0xf0 [ 24.864512][ T304] rb_buffer_peek+0x5f/0x930 [ 24.869109][ T304] ring_buffer_peek+0x184/0x3b0 [ 24.873955][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 24.879321][ T304] ? __kasan_check_write+0x14/0x20 [ 24.884433][ T304] ? _raw_spin_lock+0x94/0xf0 [ 24.889156][ T304] ? _find_next_bit+0x8a/0x130 [ 24.893928][ T304] __find_next_entry+0x33c/0x6c0 [ 24.898903][ T304] ? trace_find_next_entry+0x380/0x380 [ 24.904382][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 24.910035][ T304] ? print_trace_line+0x393/0x6b0 [ 24.915076][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 24.920046][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 24.925518][ T304] vfs_read+0x286/0x930 [ 24.929685][ T304] ? __cfi_vfs_read+0x10/0x10 [ 24.934370][ T304] ? memset+0x35/0x40 [ 24.938362][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 24.942967][ T304] ? __kasan_check_read+0x11/0x20 [ 24.947998][ T304] ? __fdget_pos+0x2d4/0x380 [ 24.952596][ T304] ksys_read+0x14a/0x260 [ 24.956842][ T304] ? __cfi_ksys_read+0x10/0x10 [ 24.961614][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 24.967254][ T304] __x64_sys_read+0x7b/0x90 [ 24.971773][ T304] x64_sys_call+0x2f/0x9a0 [ 24.976201][ T304] do_syscall_64+0x4c/0xa0 [ 24.980633][ T304] ? clear_bhb_loop+0x30/0x80 [ 24.985357][ T304] ? clear_bhb_loop+0x30/0x80 [ 24.990042][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.996036][ T304] RIP: 0033:0x7f6478261d79 [ 25.000511][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 25.020133][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 25.028555][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 25.036532][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 25.044532][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 25.052511][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 25.060491][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 25.068484][ T304] [ 25.071524][ T304] ---[ end trace 0000000000000000 ]--- [ 25.077006][ T304] ================================================================== [ 25.085077][ T304] BUG: KASAN: use-after-free in rb_buffer_peek+0x88d/0x930 [ 25.092282][ T304] Read of size 4 at addr ffff88814147b06d by task syz-executor564/304 [ 25.100437][ T304] [ 25.102767][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G W syzkaller #0 [ 25.112000][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.122057][ T304] Call Trace: [ 25.125337][ T304] [ 25.128273][ T304] __dump_stack+0x21/0x24 [ 25.132616][ T304] dump_stack_lvl+0x110/0x170 [ 25.137318][ T304] ? __cfi_dump_stack_lvl+0x8/0x8 [ 25.142352][ T304] ? rb_get_reader_page+0x9f6/0xc60 [ 25.147556][ T304] ? rb_buffer_peek+0x88d/0x930 [ 25.152412][ T304] print_address_description+0x71/0x200 [ 25.157992][ T304] print_report+0x4a/0x60 [ 25.162337][ T304] kasan_report+0x122/0x150 [ 25.166863][ T304] ? rb_buffer_peek+0x88d/0x930 [ 25.171727][ T304] ? __kasan_check_write+0x14/0x20 [ 25.176846][ T304] __asan_report_load4_noabort+0x14/0x20 [ 25.182490][ T304] rb_buffer_peek+0x88d/0x930 [ 25.187176][ T304] ring_buffer_peek+0x184/0x3b0 [ 25.192033][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 25.197411][ T304] ? __kasan_check_write+0x14/0x20 [ 25.202528][ T304] ? _raw_spin_lock+0x94/0xf0 [ 25.207223][ T304] ? _find_next_bit+0x8a/0x130 [ 25.212007][ T304] __find_next_entry+0x33c/0x6c0 [ 25.216963][ T304] ? trace_find_next_entry+0x380/0x380 [ 25.222443][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 25.228078][ T304] ? print_trace_line+0x393/0x6b0 [ 25.233112][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 25.238090][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 25.243564][ T304] vfs_read+0x286/0x930 [ 25.247727][ T304] ? __cfi_vfs_read+0x10/0x10 [ 25.252413][ T304] ? memset+0x35/0x40 [ 25.256398][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 25.261007][ T304] ? __kasan_check_read+0x11/0x20 [ 25.266057][ T304] ? __fdget_pos+0x2d4/0x380 [ 25.270674][ T304] ksys_read+0x14a/0x260 [ 25.274942][ T304] ? __cfi_ksys_read+0x10/0x10 [ 25.279711][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 25.285359][ T304] __x64_sys_read+0x7b/0x90 [ 25.289878][ T304] x64_sys_call+0x2f/0x9a0 [ 25.294299][ T304] do_syscall_64+0x4c/0xa0 [ 25.298745][ T304] ? clear_bhb_loop+0x30/0x80 [ 25.303439][ T304] ? clear_bhb_loop+0x30/0x80 [ 25.308130][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.314034][ T304] RIP: 0033:0x7f6478261d79 [ 25.318457][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 25.338070][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 25.346496][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 25.354478][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 25.362459][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 25.370439][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 25.378419][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 25.386404][ T304] [ 25.389429][ T304] [ 25.391758][ T304] The buggy address belongs to the physical page: [ 25.398169][ T304] page:ffffea0005051ec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14147b [ 25.408432][ T304] flags: 0x4000000000000000(zone=1) [ 25.413643][ T304] raw: 4000000000000000 ffffea0005051ec8 ffffea0005051ec8 0000000000000000 [ 25.422238][ T304] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 25.430824][ T304] page dumped because: kasan: bad access detected [ 25.437269][ T304] page_owner info is not present (never set?) [ 25.443336][ T304] [ 25.445664][ T304] Memory state around the buggy address: [ 25.451383][ T304] ffff88814147af00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 25.459457][ T304] ffff88814147af80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 25.467532][ T304] >ffff88814147b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 25.475594][ T304] ^ [ 25.483050][ T304] ffff88814147b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 25.491112][ T304] ffff88814147b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 25.499175][ T304] ================================================================== [ 25.507244][ T304] Disabling lock debugging due to kernel taint [ 25.514118][ T304] ------------[ cut here ]------------ [ 25.519595][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 25.529793][ T304] Modules linked in: [ 25.533688][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 25.542890][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.552966][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 25.558805][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 25.578437][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 25.584517][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 25.592505][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 25.600484][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 25.608469][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 25.616455][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 25.624449][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.633406][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.640004][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 25.647988][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.655968][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.663968][ T304] Call Trace: [ 25.667251][ T304] [ 25.670192][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 25.675839][ T304] ? __kasan_check_write+0x14/0x20 [ 25.680977][ T304] ? _raw_spin_lock+0x94/0xf0 [ 25.685671][ T304] rb_buffer_peek+0x5f/0x930 [ 25.690278][ T304] ring_buffer_consume+0x1aa/0x370 [ 25.695455][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 25.701096][ T304] ? print_trace_line+0x393/0x6b0 [ 25.706129][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 25.711080][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 25.716555][ T304] vfs_read+0x286/0x930 [ 25.720720][ T304] ? __cfi_vfs_read+0x10/0x10 [ 25.725404][ T304] ? memset+0x35/0x40 [ 25.729414][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 25.734022][ T304] ? __kasan_check_read+0x11/0x20 [ 25.739053][ T304] ? __fdget_pos+0x2d4/0x380 [ 25.743659][ T304] ksys_read+0x14a/0x260 [ 25.747931][ T304] ? __cfi_ksys_read+0x10/0x10 [ 25.752712][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 25.758362][ T304] __x64_sys_read+0x7b/0x90 [ 25.762880][ T304] x64_sys_call+0x2f/0x9a0 [ 25.767314][ T304] do_syscall_64+0x4c/0xa0 [ 25.771758][ T304] ? clear_bhb_loop+0x30/0x80 [ 25.776461][ T304] ? clear_bhb_loop+0x30/0x80 [ 25.781416][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.787329][ T304] RIP: 0033:0x7f6478261d79 [ 25.791764][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 25.811377][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 25.819817][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 25.827827][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 25.835830][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 25.843829][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 25.851806][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 25.859801][ T304] [ 25.862839][ T304] ---[ end trace 0000000000000000 ]--- [ 25.868340][ T304] ------------[ cut here ]------------ [ 25.873795][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 25.883956][ T304] Modules linked in: [ 25.887854][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 25.897054][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.907116][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 25.912947][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 25.932562][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 25.938637][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 25.946619][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 25.954611][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 25.962597][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 25.970575][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 25.978554][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.987585][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.994174][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 26.002160][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.010139][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.018112][ T304] Call Trace: [ 26.021393][ T304] [ 26.024329][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 26.029999][ T304] rb_advance_reader+0x2b/0x770 [ 26.034878][ T304] ring_buffer_consume+0x1e7/0x370 [ 26.040008][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 26.045656][ T304] ? print_trace_line+0x393/0x6b0 [ 26.050697][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 26.055650][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 26.061129][ T304] vfs_read+0x286/0x930 [ 26.065295][ T304] ? __cfi_vfs_read+0x10/0x10 [ 26.069985][ T304] ? memset+0x35/0x40 [ 26.073991][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 26.078613][ T304] ? __kasan_check_read+0x11/0x20 [ 26.083652][ T304] ? __fdget_pos+0x2d4/0x380 [ 26.088259][ T304] ksys_read+0x14a/0x260 [ 26.092510][ T304] ? __cfi_ksys_read+0x10/0x10 [ 26.097283][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 26.102928][ T304] __x64_sys_read+0x7b/0x90 [ 26.107445][ T304] x64_sys_call+0x2f/0x9a0 [ 26.111880][ T304] do_syscall_64+0x4c/0xa0 [ 26.116312][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.121006][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.125694][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.131598][ T304] RIP: 0033:0x7f6478261d79 [ 26.136021][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 26.155639][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 26.164068][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 26.172047][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 26.180374][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 26.188355][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 26.196335][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 26.204318][ T304] [ 26.207345][ T304] ---[ end trace 0000000000000000 ]--- [ 26.213704][ T304] ------------[ cut here ]------------ [ 26.217356][ T28] audit: type=1400 audit(1789594188.093:71): avc: denied { read } for pid=84 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 26.219183][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 26.251056][ T304] Modules linked in: [ 26.254972][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 26.261049][ T28] audit: type=1400 audit(1789594188.123:72): avc: denied { search } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 26.264182][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 26.264194][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 26.285953][ T28] audit: type=1400 audit(1789594188.123:73): avc: denied { write } for pid=84 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 26.295439][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 26.295458][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 26.295476][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 26.355987][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 26.363969][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 26.371952][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 26.379946][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 26.387940][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.396894][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.403483][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 26.411462][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.419450][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.427428][ T304] Call Trace: [ 26.430714][ T304] [ 26.433652][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 26.439295][ T304] ? __schedule+0xcbb/0x1700 [ 26.443905][ T304] ? __kasan_check_write+0x14/0x20 [ 26.449023][ T304] ? _raw_spin_lock+0x94/0xf0 [ 26.453710][ T304] rb_buffer_peek+0x5f/0x930 [ 26.458315][ T304] ring_buffer_peek+0x184/0x3b0 [ 26.463169][ T304] ? __kasan_check_read+0x11/0x20 [ 26.468204][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 26.473614][ T304] ? _find_next_bit+0x8a/0x130 [ 26.478401][ T304] __find_next_entry+0x33c/0x6c0 [ 26.483361][ T304] ? trace_find_next_entry+0x380/0x380 [ 26.488832][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 26.494472][ T304] ? print_trace_line+0x393/0x6b0 [ 26.499499][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 26.504449][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 26.509914][ T304] vfs_read+0x286/0x930 [ 26.514076][ T304] ? __cfi_vfs_read+0x10/0x10 [ 26.518759][ T304] ? memset+0x35/0x40 [ 26.522747][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 26.527350][ T304] ? __kasan_check_read+0x11/0x20 [ 26.532390][ T304] ? __fdget_pos+0x2d4/0x380 [ 26.536991][ T304] ksys_read+0x14a/0x260 [ 26.541248][ T304] ? __cfi_ksys_read+0x10/0x10 [ 26.546071][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 26.551734][ T304] __x64_sys_read+0x7b/0x90 [ 26.556245][ T304] x64_sys_call+0x2f/0x9a0 [ 26.560763][ T304] do_syscall_64+0x4c/0xa0 [ 26.565227][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.569912][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.574592][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.580488][ T304] RIP: 0033:0x7f6478261d79 [ 26.584901][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 26.604510][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 26.612931][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 26.620914][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 26.628893][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 26.636875][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 26.644856][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 26.652838][ T304] [ 26.655860][ T304] ---[ end trace 0000000000000000 ]--- [ 26.661505][ T304] ------------[ cut here ]------------ [ 26.667016][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 26.677187][ T304] Modules linked in: [ 26.681088][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 26.690289][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 26.700349][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 26.706171][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 26.725800][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 26.731890][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 26.739878][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 26.747867][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 26.755865][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 26.763862][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 26.771853][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.780889][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.787479][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 26.795471][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.803451][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.811432][ T304] Call Trace: [ 26.814730][ T304] [ 26.817679][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 26.823330][ T304] ? __kasan_check_write+0x14/0x20 [ 26.828454][ T304] ? _raw_spin_lock+0x94/0xf0 [ 26.833156][ T304] rb_buffer_peek+0x5f/0x930 [ 26.837763][ T304] ring_buffer_consume+0x1aa/0x370 [ 26.842903][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 26.848542][ T304] ? print_trace_line+0x393/0x6b0 [ 26.853575][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 26.858529][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 26.863999][ T304] vfs_read+0x286/0x930 [ 26.868173][ T304] ? __cfi_vfs_read+0x10/0x10 [ 26.872855][ T304] ? memset+0x35/0x40 [ 26.876847][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 26.881452][ T304] ? __kasan_check_read+0x11/0x20 [ 26.886493][ T304] ? __fdget_pos+0x2d4/0x380 [ 26.891095][ T304] ksys_read+0x14a/0x260 [ 26.895354][ T304] ? __cfi_ksys_read+0x10/0x10 [ 26.900131][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 26.905786][ T304] __x64_sys_read+0x7b/0x90 [ 26.910306][ T304] x64_sys_call+0x2f/0x9a0 [ 26.914736][ T304] do_syscall_64+0x4c/0xa0 [ 26.919169][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.923857][ T304] ? clear_bhb_loop+0x30/0x80 [ 26.928546][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.934447][ T304] RIP: 0033:0x7f6478261d79 [ 26.938869][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 26.958479][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 26.966905][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 26.974882][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 26.982855][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 26.990833][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 26.998815][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 27.006800][ T304] [ 27.009829][ T304] ---[ end trace 0000000000000000 ]--- [ 27.015337][ T304] ------------[ cut here ]------------ [ 27.020792][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 27.030959][ T304] Modules linked in: [ 27.034860][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 27.044061][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 27.054130][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 27.059964][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 27.079575][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 27.085655][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 27.093651][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 27.101636][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 27.109614][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 27.117591][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 27.125568][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.134501][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.141090][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 27.149071][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.157050][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.165037][ T304] Call Trace: [ 27.168319][ T304] [ 27.171264][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 27.176923][ T304] rb_advance_reader+0x2b/0x770 [ 27.181792][ T304] ring_buffer_consume+0x1e7/0x370 [ 27.186923][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 27.192560][ T304] ? print_trace_line+0x393/0x6b0 [ 27.197591][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 27.202550][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 27.208022][ T304] vfs_read+0x286/0x930 [ 27.212187][ T304] ? __cfi_vfs_read+0x10/0x10 [ 27.216870][ T304] ? memset+0x35/0x40 [ 27.220871][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 27.225476][ T304] ? __kasan_check_read+0x11/0x20 [ 27.230503][ T304] ? __fdget_pos+0x2d4/0x380 [ 27.235100][ T304] ksys_read+0x14a/0x260 [ 27.239361][ T304] ? __cfi_ksys_read+0x10/0x10 [ 27.244157][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 27.249800][ T304] __x64_sys_read+0x7b/0x90 [ 27.254315][ T304] x64_sys_call+0x2f/0x9a0 [ 27.258747][ T304] do_syscall_64+0x4c/0xa0 [ 27.263186][ T304] ? clear_bhb_loop+0x30/0x80 [ 27.267867][ T304] ? clear_bhb_loop+0x30/0x80 [ 27.272549][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.278447][ T304] RIP: 0033:0x7f6478261d79 [ 27.282873][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 27.302485][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 27.310925][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 27.318907][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 27.326888][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 27.334875][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 27.342850][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 27.350833][ T304] [ 27.353865][ T304] ---[ end trace 0000000000000000 ]--- [ 27.359520][ T304] ------------[ cut here ]------------ [ 27.364995][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 27.375169][ T304] Modules linked in: [ 27.379052][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 27.388249][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 27.398296][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 27.404123][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 27.423721][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 27.429786][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 27.437749][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 27.445715][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 27.453686][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 27.461657][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 27.469621][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.478543][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.485123][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 27.493090][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.501053][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.509015][ T304] Call Trace: [ 27.512289][ T304] [ 27.515219][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 27.520848][ T304] ? __schedule+0xcbb/0x1700 [ 27.525440][ T304] ? __kasan_check_write+0x14/0x20 [ 27.530547][ T304] ? _raw_spin_lock+0x94/0xf0 [ 27.535224][ T304] rb_buffer_peek+0x5f/0x930 [ 27.539812][ T304] ring_buffer_peek+0x184/0x3b0 [ 27.544657][ T304] ? __kasan_check_read+0x11/0x20 [ 27.549676][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 27.555041][ T304] ? _find_next_bit+0x8a/0x130 [ 27.559814][ T304] __find_next_entry+0x33c/0x6c0 [ 27.564759][ T304] ? trace_find_next_entry+0x380/0x380 [ 27.570216][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 27.575843][ T304] ? print_trace_line+0x393/0x6b0 [ 27.580868][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 27.585832][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 27.591305][ T304] vfs_read+0x286/0x930 [ 27.595466][ T304] ? __cfi_vfs_read+0x10/0x10 [ 27.600155][ T304] ? memset+0x35/0x40 [ 27.604134][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 27.608729][ T304] ? __kasan_check_read+0x11/0x20 [ 27.613747][ T304] ? __fdget_pos+0x2d4/0x380 [ 27.618330][ T304] ksys_read+0x14a/0x260 [ 27.622652][ T304] ? __cfi_ksys_read+0x10/0x10 [ 27.627407][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 27.633033][ T304] __x64_sys_read+0x7b/0x90 [ 27.637530][ T304] x64_sys_call+0x2f/0x9a0 [ 27.641942][ T304] do_syscall_64+0x4c/0xa0 [ 27.646374][ T304] ? clear_bhb_loop+0x30/0x80 [ 27.651046][ T304] ? clear_bhb_loop+0x30/0x80 [ 27.655835][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.661745][ T304] RIP: 0033:0x7f6478261d79 [ 27.666156][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 27.685755][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 27.694162][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 27.702137][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 27.710101][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 27.718082][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 27.726049][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 27.734020][ T304] [ 27.737030][ T304] ---[ end trace 0000000000000000 ]--- [ 27.742654][ T304] ------------[ cut here ]------------ [ 27.748123][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 27.758303][ T304] Modules linked in: [ 27.762198][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 27.771392][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 27.781439][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 27.787248][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 27.806936][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 27.813016][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 27.820988][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 27.828964][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 27.836935][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 27.844912][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 27.852882][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.861809][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.868406][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 27.876381][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.884354][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.892342][ T304] Call Trace: [ 27.895627][ T304] [ 27.898577][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 27.904254][ T304] ? __kasan_check_write+0x14/0x20 [ 27.909372][ T304] ? _raw_spin_lock+0x94/0xf0 [ 27.914057][ T304] rb_buffer_peek+0x5f/0x930 [ 27.918656][ T304] ring_buffer_consume+0x1aa/0x370 [ 27.923783][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 27.929426][ T304] ? print_trace_line+0x393/0x6b0 [ 27.934455][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 27.939409][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 27.944882][ T304] vfs_read+0x286/0x930 [ 27.949045][ T304] ? __cfi_vfs_read+0x10/0x10 [ 27.953735][ T304] ? memset+0x35/0x40 [ 27.957725][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 27.962329][ T304] ? __kasan_check_read+0x11/0x20 [ 27.967359][ T304] ? __fdget_pos+0x2d4/0x380 [ 27.971956][ T304] ksys_read+0x14a/0x260 [ 27.976200][ T304] ? __cfi_ksys_read+0x10/0x10 [ 27.980968][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 27.986610][ T304] __x64_sys_read+0x7b/0x90 [ 27.991132][ T304] x64_sys_call+0x2f/0x9a0 [ 27.995558][ T304] do_syscall_64+0x4c/0xa0 [ 27.999985][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.004671][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.009362][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.015269][ T304] RIP: 0033:0x7f6478261d79 [ 28.019699][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 28.039312][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 28.047730][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 28.055713][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 28.063704][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 28.071681][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 28.079671][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 28.087719][ T304] [ 28.090892][ T304] ---[ end trace 0000000000000000 ]--- [ 28.096405][ T304] ------------[ cut here ]------------ [ 28.101859][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 28.112027][ T304] Modules linked in: [ 28.115952][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 28.125162][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 28.135230][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 28.141063][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 28.160685][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 28.166775][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 28.174857][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 28.182838][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 28.190815][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 28.198794][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 28.206786][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 28.215736][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.222333][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 28.230315][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.238289][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.246269][ T304] Call Trace: [ 28.249560][ T304] [ 28.252499][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 28.258144][ T304] rb_advance_reader+0x2b/0x770 [ 28.263000][ T304] ring_buffer_consume+0x1e7/0x370 [ 28.268141][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 28.273789][ T304] ? print_trace_line+0x393/0x6b0 [ 28.278823][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 28.283778][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 28.289276][ T304] vfs_read+0x286/0x930 [ 28.293443][ T304] ? __cfi_vfs_read+0x10/0x10 [ 28.298149][ T304] ? memset+0x35/0x40 [ 28.302140][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 28.306748][ T304] ? __kasan_check_read+0x11/0x20 [ 28.311784][ T304] ? __fdget_pos+0x2d4/0x380 [ 28.316389][ T304] ksys_read+0x14a/0x260 [ 28.320643][ T304] ? __cfi_ksys_read+0x10/0x10 [ 28.325419][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 28.331064][ T304] __x64_sys_read+0x7b/0x90 [ 28.335580][ T304] x64_sys_call+0x2f/0x9a0 [ 28.340014][ T304] do_syscall_64+0x4c/0xa0 [ 28.344441][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.349129][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.353819][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.359718][ T304] RIP: 0033:0x7f6478261d79 [ 28.364134][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 28.383758][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 28.392188][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 28.400179][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 28.408175][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 28.416156][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 28.424165][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 28.432155][ T304] [ 28.435182][ T304] ---[ end trace 0000000000000000 ]--- [ 28.440850][ T304] ------------[ cut here ]------------ [ 28.446336][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 28.456521][ T304] Modules linked in: [ 28.460433][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 28.469631][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 28.479693][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 28.485537][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 28.505162][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010006 [ 28.511237][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 28.519221][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 28.527206][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 28.535192][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 28.543171][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 28.551172][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 28.560116][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.566711][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 28.574701][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.582675][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.590658][ T304] Call Trace: [ 28.593939][ T304] [ 28.596889][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 28.602540][ T304] ? __schedule+0xcbb/0x1700 [ 28.607144][ T304] ? __kasan_check_write+0x14/0x20 [ 28.612269][ T304] ? _raw_spin_lock+0x94/0xf0 [ 28.616959][ T304] rb_buffer_peek+0x5f/0x930 [ 28.621553][ T304] ring_buffer_peek+0x184/0x3b0 [ 28.626409][ T304] ? __kasan_check_read+0x11/0x20 [ 28.631444][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 28.636822][ T304] ? _find_next_bit+0x8a/0x130 [ 28.641593][ T304] __find_next_entry+0x33c/0x6c0 [ 28.646571][ T304] ? trace_find_next_entry+0x380/0x380 [ 28.652049][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 28.657683][ T304] ? print_trace_line+0x393/0x6b0 [ 28.662706][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 28.667655][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 28.673118][ T304] vfs_read+0x286/0x930 [ 28.677283][ T304] ? __cfi_vfs_read+0x10/0x10 [ 28.681960][ T304] ? memset+0x35/0x40 [ 28.685966][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 28.690581][ T304] ? __kasan_check_read+0x11/0x20 [ 28.695627][ T304] ? __fdget_pos+0x2d4/0x380 [ 28.700262][ T304] ksys_read+0x14a/0x260 [ 28.704511][ T304] ? __cfi_ksys_read+0x10/0x10 [ 28.709292][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 28.714948][ T304] __x64_sys_read+0x7b/0x90 [ 28.719458][ T304] x64_sys_call+0x2f/0x9a0 [ 28.723883][ T304] do_syscall_64+0x4c/0xa0 [ 28.728306][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.733001][ T304] ? clear_bhb_loop+0x30/0x80 [ 28.737690][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.743596][ T304] RIP: 0033:0x7f6478261d79 [ 28.748016][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 28.767624][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 28.776052][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 28.784045][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 28.792030][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 28.800012][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 28.807987][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 28.815961][ T304] [ 28.818985][ T304] ---[ end trace 0000000000000000 ]--- [ 28.824605][ T304] ------------[ cut here ]------------ [ 28.830070][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 28.840255][ T304] Modules linked in: [ 28.844154][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 28.853369][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 28.863437][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 28.869262][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 28.888999][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 28.895095][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 28.903089][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 28.911078][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 28.919066][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 28.927056][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 28.935066][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 28.944016][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.950621][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 28.958618][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.966601][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.974584][ T304] Call Trace: [ 28.977867][ T304] [ 28.980808][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 28.986460][ T304] ? __kasan_check_write+0x14/0x20 [ 28.991586][ T304] ? _raw_spin_lock+0x94/0xf0 [ 28.996279][ T304] rb_buffer_peek+0x5f/0x930 [ 29.000881][ T304] ring_buffer_consume+0x1aa/0x370 [ 29.006004][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 29.011666][ T304] ? print_trace_line+0x393/0x6b0 [ 29.016712][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 29.021671][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 29.027141][ T304] vfs_read+0x286/0x930 [ 29.031305][ T304] ? __cfi_vfs_read+0x10/0x10 [ 29.036014][ T304] ? memset+0x35/0x40 [ 29.040017][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 29.044633][ T304] ? __kasan_check_read+0x11/0x20 [ 29.049669][ T304] ? __fdget_pos+0x2d4/0x380 [ 29.054276][ T304] ksys_read+0x14a/0x260 [ 29.058547][ T304] ? __cfi_ksys_read+0x10/0x10 [ 29.063319][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 29.068957][ T304] __x64_sys_read+0x7b/0x90 [ 29.073464][ T304] x64_sys_call+0x2f/0x9a0 [ 29.077882][ T304] do_syscall_64+0x4c/0xa0 [ 29.082320][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.087008][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.091692][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.097590][ T304] RIP: 0033:0x7f6478261d79 [ 29.102014][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 29.121622][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 29.130047][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 29.138038][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 29.146035][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 29.154016][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 29.162009][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 29.169994][ T304] [ 29.173023][ T304] ---[ end trace 0000000000000000 ]--- [ 29.178530][ T304] ------------[ cut here ]------------ [ 29.183998][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 29.194157][ T304] Modules linked in: [ 29.198059][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 29.207272][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 29.217329][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 29.223162][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 29.242779][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 29.248856][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 29.256858][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 29.264834][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 29.272811][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 29.280785][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 29.288761][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 29.297694][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.304298][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 29.312276][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.320255][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.328233][ T304] Call Trace: [ 29.331523][ T304] [ 29.334476][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 29.340123][ T304] rb_advance_reader+0x2b/0x770 [ 29.344993][ T304] ring_buffer_consume+0x1e7/0x370 [ 29.350122][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 29.355767][ T304] ? print_trace_line+0x393/0x6b0 [ 29.360796][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 29.365749][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 29.371217][ T304] vfs_read+0x286/0x930 [ 29.375381][ T304] ? __cfi_vfs_read+0x10/0x10 [ 29.380063][ T304] ? memset+0x35/0x40 [ 29.384050][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 29.388651][ T304] ? __kasan_check_read+0x11/0x20 [ 29.393691][ T304] ? __fdget_pos+0x2d4/0x380 [ 29.398295][ T304] ksys_read+0x14a/0x260 [ 29.402570][ T304] ? __cfi_ksys_read+0x10/0x10 [ 29.407372][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 29.413018][ T304] __x64_sys_read+0x7b/0x90 [ 29.417533][ T304] x64_sys_call+0x2f/0x9a0 [ 29.421963][ T304] do_syscall_64+0x4c/0xa0 [ 29.426396][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.431090][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.435773][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.441676][ T304] RIP: 0033:0x7f6478261d79 [ 29.446108][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 29.465729][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 29.474169][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 29.482152][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 29.490135][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 29.498108][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 29.506093][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 29.514077][ T304] [ 29.517097][ T304] ---[ end trace 0000000000000000 ]--- [ 29.522937][ T304] ------------[ cut here ]------------ [ 29.528397][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 29.538585][ T304] Modules linked in: [ 29.542482][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 29.551689][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 29.561756][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 29.567577][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 29.587189][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 29.593279][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 29.601263][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 29.609263][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 29.617242][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 29.625216][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 29.633207][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 29.642152][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.648743][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 29.656729][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.664704][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.672677][ T304] Call Trace: [ 29.675964][ T304] [ 29.678909][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 29.684549][ T304] ? __schedule+0xcbb/0x1700 [ 29.689167][ T304] ? __kasan_check_write+0x14/0x20 [ 29.694303][ T304] ? _raw_spin_lock+0x94/0xf0 [ 29.699014][ T304] rb_buffer_peek+0x5f/0x930 [ 29.703638][ T304] ring_buffer_peek+0x184/0x3b0 [ 29.708563][ T304] ? __kasan_check_read+0x11/0x20 [ 29.713616][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 29.719009][ T304] ? _find_next_bit+0x8a/0x130 [ 29.723796][ T304] __find_next_entry+0x33c/0x6c0 [ 29.728763][ T304] ? trace_find_next_entry+0x380/0x380 [ 29.734243][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 29.739977][ T304] ? print_trace_line+0x393/0x6b0 [ 29.745055][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 29.750019][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 29.755595][ T304] vfs_read+0x286/0x930 [ 29.759823][ T304] ? __cfi_vfs_read+0x10/0x10 [ 29.764533][ T304] ? memset+0x35/0x40 [ 29.768539][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 29.773173][ T304] ? __kasan_check_read+0x11/0x20 [ 29.778235][ T304] ? __fdget_pos+0x2d4/0x380 [ 29.783190][ T304] ksys_read+0x14a/0x260 [ 29.787877][ T304] ? __cfi_ksys_read+0x10/0x10 [ 29.792668][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 29.798324][ T304] __x64_sys_read+0x7b/0x90 [ 29.802838][ T304] x64_sys_call+0x2f/0x9a0 [ 29.807287][ T304] do_syscall_64+0x4c/0xa0 [ 29.811720][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.816407][ T304] ? clear_bhb_loop+0x30/0x80 [ 29.821101][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.827005][ T304] RIP: 0033:0x7f6478261d79 [ 29.831435][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 29.851053][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 29.859573][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 29.867558][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 29.875554][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 29.883544][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 29.891523][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 29.899502][ T304] [ 29.902525][ T304] ---[ end trace 0000000000000000 ]--- [ 29.908113][ T304] ------------[ cut here ]------------ [ 29.913578][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 29.923775][ T304] Modules linked in: [ 29.927684][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 29.936888][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 29.946938][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 29.952757][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 29.972353][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 29.978428][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 29.986404][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 29.994369][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 30.002341][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 30.010322][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 30.018292][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 30.027227][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.033805][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 30.041787][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.049766][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.057734][ T304] Call Trace: [ 30.061015][ T304] [ 30.063990][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 30.069625][ T304] ? __kasan_check_write+0x14/0x20 [ 30.074748][ T304] ? _raw_spin_lock+0x94/0xf0 [ 30.079433][ T304] rb_buffer_peek+0x5f/0x930 [ 30.084026][ T304] ring_buffer_consume+0x1aa/0x370 [ 30.089140][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 30.094766][ T304] ? print_trace_line+0x393/0x6b0 [ 30.099786][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 30.104734][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 30.110295][ T304] vfs_read+0x286/0x930 [ 30.114456][ T304] ? __cfi_vfs_read+0x10/0x10 [ 30.119140][ T304] ? memset+0x35/0x40 [ 30.123126][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 30.127710][ T304] ? __kasan_check_read+0x11/0x20 [ 30.132743][ T304] ? __fdget_pos+0x2d4/0x380 [ 30.137341][ T304] ksys_read+0x14a/0x260 [ 30.141586][ T304] ? __cfi_ksys_read+0x10/0x10 [ 30.146342][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 30.151976][ T304] __x64_sys_read+0x7b/0x90 [ 30.156475][ T304] x64_sys_call+0x2f/0x9a0 [ 30.160987][ T304] do_syscall_64+0x4c/0xa0 [ 30.165415][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.170083][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.174758][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.180640][ T304] RIP: 0033:0x7f6478261d79 [ 30.185061][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 30.204657][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 30.213164][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 30.221132][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 30.229095][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 30.237060][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 30.245033][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 30.253013][ T304] [ 30.256028][ T304] ---[ end trace 0000000000000000 ]--- [ 30.261513][ T304] ------------[ cut here ]------------ [ 30.266966][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 30.277120][ T304] Modules linked in: [ 30.281001][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 30.290180][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 30.300222][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 30.306034][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 30.325648][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 30.331713][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 30.339676][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 30.347643][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 30.355609][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 30.363574][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 30.371550][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 30.380503][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.387100][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 30.395075][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.403059][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.411025][ T304] Call Trace: [ 30.414295][ T304] [ 30.417221][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 30.422859][ T304] rb_advance_reader+0x2b/0x770 [ 30.427730][ T304] ring_buffer_consume+0x1e7/0x370 [ 30.432849][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 30.438523][ T304] ? print_trace_line+0x393/0x6b0 [ 30.443556][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 30.448512][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 30.454007][ T304] vfs_read+0x286/0x930 [ 30.458170][ T304] ? __cfi_vfs_read+0x10/0x10 [ 30.462855][ T304] ? memset+0x35/0x40 [ 30.466850][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 30.471453][ T304] ? __kasan_check_read+0x11/0x20 [ 30.476502][ T304] ? __fdget_pos+0x2d4/0x380 [ 30.481108][ T304] ksys_read+0x14a/0x260 [ 30.485363][ T304] ? __cfi_ksys_read+0x10/0x10 [ 30.490150][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 30.495798][ T304] __x64_sys_read+0x7b/0x90 [ 30.500315][ T304] x64_sys_call+0x2f/0x9a0 [ 30.504744][ T304] do_syscall_64+0x4c/0xa0 [ 30.509180][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.513875][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.518563][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.524462][ T304] RIP: 0033:0x7f6478261d79 [ 30.528892][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 30.548511][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 30.556936][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 30.564933][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 30.572922][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 30.580900][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 30.588878][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 30.596860][ T304] [ 30.599886][ T304] ---[ end trace 0000000000000000 ]--- [ 30.605988][ T304] ------------[ cut here ]------------ [ 30.611465][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 30.621655][ T304] Modules linked in: [ 30.625555][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 30.634753][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 30.644818][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 30.650637][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 30.670338][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010012 [ 30.676410][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 30.684392][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 30.692367][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 30.700349][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 30.708413][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 30.716396][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 30.725337][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.731944][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 30.739932][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.747908][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.755892][ T304] Call Trace: [ 30.759182][ T304] [ 30.762128][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 30.767774][ T304] ? __schedule+0xcbb/0x1700 [ 30.772378][ T304] ? __kasan_check_write+0x14/0x20 [ 30.777498][ T304] ? _raw_spin_lock+0x94/0xf0 [ 30.782187][ T304] rb_buffer_peek+0x5f/0x930 [ 30.786785][ T304] ring_buffer_peek+0x184/0x3b0 [ 30.791648][ T304] ? __kasan_check_read+0x11/0x20 [ 30.796777][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 30.802166][ T304] ? _find_next_bit+0x8a/0x130 [ 30.806939][ T304] __find_next_entry+0x33c/0x6c0 [ 30.811910][ T304] ? trace_find_next_entry+0x380/0x380 [ 30.817410][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 30.823058][ T304] ? print_trace_line+0x393/0x6b0 [ 30.828101][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 30.833053][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 30.838522][ T304] vfs_read+0x286/0x930 [ 30.842689][ T304] ? __cfi_vfs_read+0x10/0x10 [ 30.847375][ T304] ? memset+0x35/0x40 [ 30.851363][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 30.855971][ T304] ? __kasan_check_read+0x11/0x20 [ 30.861003][ T304] ? __fdget_pos+0x2d4/0x380 [ 30.865611][ T304] ksys_read+0x14a/0x260 [ 30.869878][ T304] ? __cfi_ksys_read+0x10/0x10 [ 30.874654][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 30.880299][ T304] __x64_sys_read+0x7b/0x90 [ 30.884811][ T304] x64_sys_call+0x2f/0x9a0 [ 30.889236][ T304] do_syscall_64+0x4c/0xa0 [ 30.893666][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.898348][ T304] ? clear_bhb_loop+0x30/0x80 [ 30.903031][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 30.908939][ T304] RIP: 0033:0x7f6478261d79 [ 30.913357][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 30.932965][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 30.941382][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 30.949360][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 30.957359][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 30.965340][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 30.973318][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 30.981302][ T304] [ 30.984324][ T304] ---[ end trace 0000000000000000 ]--- [ 30.990152][ T304] ------------[ cut here ]------------ [ 30.995637][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 31.005821][ T304] Modules linked in: [ 31.009722][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 31.018929][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 31.029085][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 31.034913][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 31.054527][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 31.060607][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 31.068589][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 31.076567][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 31.084554][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 31.092547][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 31.100541][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 31.109481][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.116077][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 31.124063][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.132052][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.140092][ T304] Call Trace: [ 31.143393][ T304] [ 31.146343][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 31.152002][ T304] ? __kasan_check_write+0x14/0x20 [ 31.157132][ T304] ? _raw_spin_lock+0x94/0xf0 [ 31.161864][ T304] rb_buffer_peek+0x5f/0x930 [ 31.166475][ T304] ring_buffer_consume+0x1aa/0x370 [ 31.171608][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 31.177253][ T304] ? print_trace_line+0x393/0x6b0 [ 31.182293][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 31.187269][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 31.192760][ T304] vfs_read+0x286/0x930 [ 31.196934][ T304] ? __cfi_vfs_read+0x10/0x10 [ 31.201642][ T304] ? memset+0x35/0x40 [ 31.205637][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 31.210244][ T304] ? __kasan_check_read+0x11/0x20 [ 31.215279][ T304] ? __fdget_pos+0x2d4/0x380 [ 31.219895][ T304] ksys_read+0x14a/0x260 [ 31.224150][ T304] ? __cfi_ksys_read+0x10/0x10 [ 31.228920][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 31.234577][ T304] __x64_sys_read+0x7b/0x90 [ 31.239085][ T304] x64_sys_call+0x2f/0x9a0 [ 31.243509][ T304] do_syscall_64+0x4c/0xa0 [ 31.247963][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.252648][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.257336][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 31.263238][ T304] RIP: 0033:0x7f6478261d79 [ 31.267662][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 31.287294][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 31.295738][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 31.303727][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 31.311717][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 31.319704][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 31.327701][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 31.335682][ T304] [ 31.338711][ T304] ---[ end trace 0000000000000000 ]--- [ 31.344219][ T304] ------------[ cut here ]------------ [ 31.349675][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 31.359853][ T304] Modules linked in: [ 31.363750][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 31.372954][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 31.383102][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 31.388929][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 31.408547][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 31.414617][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 31.422600][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 31.430591][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 31.438571][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 31.446554][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 31.454535][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 31.463473][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.470066][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 31.478044][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.486023][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.494003][ T304] Call Trace: [ 31.497286][ T304] [ 31.500223][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 31.505879][ T304] rb_advance_reader+0x2b/0x770 [ 31.510745][ T304] ring_buffer_consume+0x1e7/0x370 [ 31.515868][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 31.521511][ T304] ? print_trace_line+0x393/0x6b0 [ 31.526545][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 31.531504][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 31.536982][ T304] vfs_read+0x286/0x930 [ 31.541156][ T304] ? __cfi_vfs_read+0x10/0x10 [ 31.545868][ T304] ? memset+0x35/0x40 [ 31.549862][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 31.554480][ T304] ? __kasan_check_read+0x11/0x20 [ 31.559513][ T304] ? __fdget_pos+0x2d4/0x380 [ 31.564113][ T304] ksys_read+0x14a/0x260 [ 31.568365][ T304] ? __cfi_ksys_read+0x10/0x10 [ 31.573133][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 31.578776][ T304] __x64_sys_read+0x7b/0x90 [ 31.583288][ T304] x64_sys_call+0x2f/0x9a0 [ 31.587713][ T304] do_syscall_64+0x4c/0xa0 [ 31.592149][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.596841][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.601539][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 31.607445][ T304] RIP: 0033:0x7f6478261d79 [ 31.611870][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 31.631488][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 31.639907][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 31.647892][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 31.655872][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 31.663851][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 31.671831][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 31.679811][ T304] [ 31.682837][ T304] ---[ end trace 0000000000000000 ]--- [ 31.688495][ T304] ------------[ cut here ]------------ [ 31.693968][ T304] WARNING: CPU: 1 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 31.704162][ T304] Modules linked in: [ 31.708048][ T304] CPU: 1 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 31.717232][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 31.727281][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 31.733085][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 31.752683][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 31.758742][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 31.766708][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 31.774671][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 31.782631][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 31.790615][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 31.798580][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 31.807501][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.814081][ T304] CR2: 0000555c3ec6de38 CR3: 0000000126023000 CR4: 00000000003506a0 [ 31.822061][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.830022][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.837983][ T304] Call Trace: [ 31.841256][ T304] [ 31.844186][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 31.849817][ T304] ? __schedule+0xcbb/0x1700 [ 31.854416][ T304] ? __kasan_check_write+0x14/0x20 [ 31.859522][ T304] ? _raw_spin_lock+0x94/0xf0 [ 31.864203][ T304] rb_buffer_peek+0x5f/0x930 [ 31.868787][ T304] ring_buffer_peek+0x184/0x3b0 [ 31.873630][ T304] ? __kasan_check_read+0x11/0x20 [ 31.878651][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 31.884105][ T304] ? _find_next_bit+0x8a/0x130 [ 31.888859][ T304] __find_next_entry+0x33c/0x6c0 [ 31.893796][ T304] ? trace_find_next_entry+0x380/0x380 [ 31.899360][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 31.905001][ T304] ? print_trace_line+0x393/0x6b0 [ 31.910014][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 31.914952][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 31.920412][ T304] vfs_read+0x286/0x930 [ 31.924567][ T304] ? __cfi_vfs_read+0x10/0x10 [ 31.929236][ T304] ? memset+0x35/0x40 [ 31.933222][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 31.937814][ T304] ? __kasan_check_read+0x11/0x20 [ 31.942837][ T304] ? __fdget_pos+0x2d4/0x380 [ 31.947429][ T304] ksys_read+0x14a/0x260 [ 31.951666][ T304] ? __cfi_ksys_read+0x10/0x10 [ 31.956431][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 31.962060][ T304] __x64_sys_read+0x7b/0x90 [ 31.966559][ T304] x64_sys_call+0x2f/0x9a0 [ 31.970974][ T304] do_syscall_64+0x4c/0xa0 [ 31.975396][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.980070][ T304] ? clear_bhb_loop+0x30/0x80 [ 31.984742][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 31.990643][ T304] RIP: 0033:0x7f6478261d79 [ 31.995052][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 32.014661][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 32.023064][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 32.031028][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 32.039004][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 32.046986][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 32.054948][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 32.062914][ T304] [ 32.065940][ T304] ---[ end trace 0000000000000000 ]--- [ 32.071585][ T304] ------------[ cut here ]------------ [ 32.077049][ T304] WARNING: CPU: 1 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 32.087224][ T304] Modules linked in: [ 32.091107][ T304] CPU: 1 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 32.100304][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 32.110352][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 32.116164][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 32.135761][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 32.141819][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 32.149792][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 32.157760][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 32.165726][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 32.173715][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 32.181683][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 32.190616][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.197197][ T304] CR2: 0000555c3ec6de38 CR3: 0000000126023000 CR4: 00000000003506a0 [ 32.205185][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.213162][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.221123][ T304] Call Trace: [ 32.224404][ T304] [ 32.227334][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 32.232971][ T304] ? __kasan_check_write+0x14/0x20 [ 32.238076][ T304] ? _raw_spin_lock+0x94/0xf0 [ 32.242756][ T304] rb_buffer_peek+0x5f/0x930 [ 32.247339][ T304] ring_buffer_consume+0x1aa/0x370 [ 32.252442][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 32.258068][ T304] ? print_trace_line+0x393/0x6b0 [ 32.263081][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 32.268016][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 32.273467][ T304] vfs_read+0x286/0x930 [ 32.277617][ T304] ? __cfi_vfs_read+0x10/0x10 [ 32.282285][ T304] ? memset+0x35/0x40 [ 32.286264][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 32.290878][ T304] ? __kasan_check_read+0x11/0x20 [ 32.295895][ T304] ? __fdget_pos+0x2d4/0x380 [ 32.300478][ T304] ksys_read+0x14a/0x260 [ 32.304710][ T304] ? __cfi_ksys_read+0x10/0x10 [ 32.309473][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 32.315103][ T304] __x64_sys_read+0x7b/0x90 [ 32.319608][ T304] x64_sys_call+0x2f/0x9a0 [ 32.324016][ T304] do_syscall_64+0x4c/0xa0 [ 32.328444][ T304] ? clear_bhb_loop+0x30/0x80 [ 32.333117][ T304] ? clear_bhb_loop+0x30/0x80 [ 32.337797][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 32.343701][ T304] RIP: 0033:0x7f6478261d79 [ 32.348120][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 32.367722][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 32.376135][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 32.384103][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 32.392071][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 32.400042][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 32.408009][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 32.415976][ T304] [ 32.418997][ T304] ---[ end trace 0000000000000000 ]--- [ 32.424500][ T304] ------------[ cut here ]------------ [ 32.429952][ T304] WARNING: CPU: 1 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 32.440117][ T304] Modules linked in: [ 32.444021][ T304] CPU: 1 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 32.453208][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 32.463264][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 32.469077][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 32.488675][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 32.494741][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 32.502729][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 32.510721][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 32.518693][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 32.526667][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 32.534640][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 32.543571][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.550171][ T304] CR2: 0000555c3ec6de38 CR3: 0000000126023000 CR4: 00000000003506a0 [ 32.558154][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.566132][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.574099][ T304] Call Trace: [ 32.577369][ T304] [ 32.580296][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 32.585926][ T304] rb_advance_reader+0x2b/0x770 [ 32.590772][ T304] ring_buffer_consume+0x1e7/0x370 [ 32.595876][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 32.601505][ T304] ? print_trace_line+0x393/0x6b0 [ 32.606521][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 32.611457][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 32.616913][ T304] vfs_read+0x286/0x930 [ 32.621065][ T304] ? __cfi_vfs_read+0x10/0x10 [ 32.625732][ T304] ? memset+0x35/0x40 [ 32.629705][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 32.634311][ T304] ? __kasan_check_read+0x11/0x20 [ 32.639328][ T304] ? __fdget_pos+0x2d4/0x380 [ 32.643919][ T304] ksys_read+0x14a/0x260 [ 32.648159][ T304] ? __cfi_ksys_read+0x10/0x10 [ 32.652916][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 32.658556][ T304] __x64_sys_read+0x7b/0x90 [ 32.663051][ T304] x64_sys_call+0x2f/0x9a0 [ 32.667462][ T304] do_syscall_64+0x4c/0xa0 [ 32.671881][ T304] ? clear_bhb_loop+0x30/0x80 [ 32.676550][ T304] ? clear_bhb_loop+0x30/0x80 [ 32.681238][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 32.687127][ T304] RIP: 0033:0x7f6478261d79 [ 32.691554][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 32.711156][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 32.719575][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 32.727544][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 32.735513][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 32.743501][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 32.751475][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 32.759445][ T304] [ 32.762457][ T304] ---[ end trace 0000000000000000 ]--- [ 32.768172][ T304] ------------[ cut here ]------------ [ 32.773663][ T304] WARNING: CPU: 1 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 32.783838][ T304] Modules linked in: [ 32.787775][ T304] CPU: 1 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 32.796975][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 32.807054][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 32.812891][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 32.832521][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 32.838599][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 32.846584][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 32.854573][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 32.862550][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 32.870525][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 32.878506][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 32.887450][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.894046][ T304] CR2: 0000555c3ec6de38 CR3: 0000000126023000 CR4: 00000000003506a0 [ 32.902027][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.909997][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.917982][ T304] Call Trace: [ 32.921280][ T304] [ 32.924228][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 32.929882][ T304] ? __schedule+0xcbb/0x1700 [ 32.934499][ T304] ? __kasan_check_write+0x14/0x20 [ 32.939620][ T304] ? _raw_spin_lock+0x94/0xf0 [ 32.944310][ T304] rb_buffer_peek+0x5f/0x930 [ 32.948930][ T304] ring_buffer_peek+0x184/0x3b0 [ 32.953795][ T304] ? __kasan_check_read+0x11/0x20 [ 32.958825][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 32.964208][ T304] ? _find_next_bit+0x8a/0x130 [ 32.969004][ T304] __find_next_entry+0x33c/0x6c0 [ 32.973964][ T304] ? trace_find_next_entry+0x380/0x380 [ 32.979436][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 32.985160][ T304] ? print_trace_line+0x393/0x6b0 [ 32.990188][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 32.995147][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 33.000628][ T304] vfs_read+0x286/0x930 [ 33.004790][ T304] ? __cfi_vfs_read+0x10/0x10 [ 33.009475][ T304] ? memset+0x35/0x40 [ 33.013479][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 33.018108][ T304] ? __kasan_check_read+0x11/0x20 [ 33.023143][ T304] ? __fdget_pos+0x2d4/0x380 [ 33.027741][ T304] ksys_read+0x14a/0x260 [ 33.032000][ T304] ? __cfi_ksys_read+0x10/0x10 [ 33.036774][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 33.042504][ T304] __x64_sys_read+0x7b/0x90 [ 33.047011][ T304] x64_sys_call+0x2f/0x9a0 [ 33.051437][ T304] do_syscall_64+0x4c/0xa0 [ 33.055884][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.060570][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.065256][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.071169][ T304] RIP: 0033:0x7f6478261d79 [ 33.075614][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 33.095231][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 33.103659][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 33.111642][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 33.119628][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 33.127606][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 33.135585][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 33.143570][ T304] [ 33.146601][ T304] ---[ end trace 0000000000000000 ]--- [ 33.152225][ T304] ------------[ cut here ]------------ [ 33.157711][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 33.167897][ T304] Modules linked in: [ 33.171809][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 33.181023][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 33.191270][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 33.197091][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 33.216708][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 33.222783][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 33.230762][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 33.238763][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 33.246748][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 33.254730][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 33.262709][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 33.271647][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.278247][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 33.286242][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.294218][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.302226][ T304] Call Trace: [ 33.305511][ T304] [ 33.308455][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 33.314099][ T304] ? __kasan_check_write+0x14/0x20 [ 33.319218][ T304] ? _raw_spin_lock+0x94/0xf0 [ 33.323912][ T304] rb_buffer_peek+0x5f/0x930 [ 33.328511][ T304] ring_buffer_consume+0x1aa/0x370 [ 33.333632][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 33.339277][ T304] ? print_trace_line+0x393/0x6b0 [ 33.344308][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 33.349263][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 33.354738][ T304] vfs_read+0x286/0x930 [ 33.358900][ T304] ? __cfi_vfs_read+0x10/0x10 [ 33.363585][ T304] ? memset+0x35/0x40 [ 33.367575][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 33.372182][ T304] ? __kasan_check_read+0x11/0x20 [ 33.377215][ T304] ? __fdget_pos+0x2d4/0x380 [ 33.381815][ T304] ksys_read+0x14a/0x260 [ 33.386071][ T304] ? __cfi_ksys_read+0x10/0x10 [ 33.390846][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 33.396489][ T304] __x64_sys_read+0x7b/0x90 [ 33.400999][ T304] x64_sys_call+0x2f/0x9a0 [ 33.405451][ T304] do_syscall_64+0x4c/0xa0 [ 33.409882][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.414567][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.419257][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.425157][ T304] RIP: 0033:0x7f6478261d79 [ 33.429610][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 33.449232][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 33.457694][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 33.465679][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 33.473674][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 33.481662][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 33.489763][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 33.497744][ T304] [ 33.500774][ T304] ---[ end trace 0000000000000000 ]--- [ 33.506287][ T304] ------------[ cut here ]------------ [ 33.511742][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 33.521907][ T304] Modules linked in: [ 33.525806][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 33.535008][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 33.545073][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 33.550892][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 33.570507][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 33.576595][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 33.584577][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 33.592551][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 33.600535][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 33.608515][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 33.616506][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 33.625440][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.632028][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 33.640007][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.647983][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.655968][ T304] Call Trace: [ 33.659256][ T304] [ 33.662200][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 33.667850][ T304] rb_advance_reader+0x2b/0x770 [ 33.672710][ T304] ring_buffer_consume+0x1e7/0x370 [ 33.677848][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 33.683491][ T304] ? print_trace_line+0x393/0x6b0 [ 33.688530][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 33.693481][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 33.698955][ T304] vfs_read+0x286/0x930 [ 33.703139][ T304] ? __cfi_vfs_read+0x10/0x10 [ 33.707822][ T304] ? memset+0x35/0x40 [ 33.711814][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 33.716419][ T304] ? __kasan_check_read+0x11/0x20 [ 33.721450][ T304] ? __fdget_pos+0x2d4/0x380 [ 33.726053][ T304] ksys_read+0x14a/0x260 [ 33.730303][ T304] ? __cfi_ksys_read+0x10/0x10 [ 33.735082][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 33.740738][ T304] __x64_sys_read+0x7b/0x90 [ 33.745251][ T304] x64_sys_call+0x2f/0x9a0 [ 33.749686][ T304] do_syscall_64+0x4c/0xa0 [ 33.754115][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.758805][ T304] ? clear_bhb_loop+0x30/0x80 [ 33.763507][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 33.769409][ T304] RIP: 0033:0x7f6478261d79 [ 33.773830][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 33.793443][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 33.801862][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 33.809839][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 33.817822][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 33.825886][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 33.833862][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 33.841844][ T304] [ 33.844895][ T304] ---[ end trace 0000000000000000 ]--- [ 33.850780][ T304] ------------[ cut here ]------------ [ 33.856252][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 33.866428][ T304] Modules linked in: [ 33.870313][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 33.879496][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 33.889560][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 33.895392][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 33.915002][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 33.921059][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 33.929025][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 33.937004][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 33.944972][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 33.952952][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 33.960918][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 33.969841][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.976418][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 33.984384][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.992348][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.000317][ T304] Call Trace: [ 34.003596][ T304] [ 34.006526][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 34.012156][ T304] ? __schedule+0xcbb/0x1700 [ 34.016818][ T304] ? __kasan_check_write+0x14/0x20 [ 34.021945][ T304] ? _raw_spin_lock+0x94/0xf0 [ 34.026635][ T304] rb_buffer_peek+0x5f/0x930 [ 34.031229][ T304] ring_buffer_peek+0x184/0x3b0 [ 34.036103][ T304] ? __kasan_check_read+0x11/0x20 [ 34.041132][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 34.046499][ T304] ? _find_next_bit+0x8a/0x130 [ 34.051259][ T304] __find_next_entry+0x33c/0x6c0 [ 34.056222][ T304] ? trace_find_next_entry+0x380/0x380 [ 34.061704][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 34.067333][ T304] ? print_trace_line+0x393/0x6b0 [ 34.072351][ T304] tracing_read_pipe+0x3d2/0xaf0 [ 34.077306][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 34.082782][ T304] vfs_read+0x286/0x930 [ 34.086938][ T304] ? __cfi_vfs_read+0x10/0x10 [ 34.091622][ T304] ? memset+0x35/0x40 [ 34.095611][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 34.100214][ T304] ? __kasan_check_read+0x11/0x20 [ 34.105251][ T304] ? __fdget_pos+0x2d4/0x380 [ 34.109836][ T304] ksys_read+0x14a/0x260 [ 34.114080][ T304] ? __cfi_ksys_read+0x10/0x10 [ 34.118843][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 34.124492][ T304] __x64_sys_read+0x7b/0x90 [ 34.128989][ T304] x64_sys_call+0x2f/0x9a0 [ 34.133405][ T304] do_syscall_64+0x4c/0xa0 [ 34.137822][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.142505][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.147182][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 34.153092][ T304] RIP: 0033:0x7f6478261d79 [ 34.157513][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 34.177114][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 34.185522][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 34.193509][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 34.201473][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 34.209452][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 34.217419][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 34.225388][ T304] [ 34.228400][ T304] ---[ end trace 0000000000000000 ]--- [ 34.234106][ T304] ------------[ cut here ]------------ [ 34.239598][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 34.249778][ T304] Modules linked in: [ 34.253688][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 34.262875][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 34.272930][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 34.278737][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 34.298348][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010002 [ 34.304405][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 34.312372][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 34.320344][ T304] RBP: ffffc90000e17ab0 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 34.328322][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 34.336288][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 34.344262][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 34.353189][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.359772][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 34.367752][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.375737][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.383722][ T304] Call Trace: [ 34.387014][ T304] [ 34.389961][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 34.395700][ T304] ? __kasan_check_write+0x14/0x20 [ 34.400830][ T304] ? _raw_spin_lock+0x94/0xf0 [ 34.405530][ T304] rb_buffer_peek+0x5f/0x930 [ 34.410138][ T304] ring_buffer_consume+0x1aa/0x370 [ 34.415283][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 34.420943][ T304] ? print_trace_line+0x393/0x6b0 [ 34.425987][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 34.430957][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 34.436443][ T304] vfs_read+0x286/0x930 [ 34.440616][ T304] ? __cfi_vfs_read+0x10/0x10 [ 34.445307][ T304] ? memset+0x35/0x40 [ 34.449296][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 34.453899][ T304] ? __kasan_check_read+0x11/0x20 [ 34.458933][ T304] ? __fdget_pos+0x2d4/0x380 [ 34.463539][ T304] ksys_read+0x14a/0x260 [ 34.467798][ T304] ? __cfi_ksys_read+0x10/0x10 [ 34.472583][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 34.478252][ T304] __x64_sys_read+0x7b/0x90 [ 34.482776][ T304] x64_sys_call+0x2f/0x9a0 [ 34.487217][ T304] do_syscall_64+0x4c/0xa0 [ 34.491660][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.496348][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.501051][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 34.506971][ T304] RIP: 0033:0x7f6478261d79 [ 34.511410][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 34.531028][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 34.539470][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 34.547455][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 34.555434][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 34.563412][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 34.571399][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 34.579407][ T304] [ 34.582440][ T304] ---[ end trace 0000000000000000 ]--- [ 34.587958][ T304] ------------[ cut here ]------------ [ 34.593448][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 34.603650][ T304] Modules linked in: [ 34.607562][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 34.616770][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 34.626845][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 34.632674][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 34.652292][ T304] RSP: 0018:ffffc90000e17940 EFLAGS: 00010006 [ 34.658368][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 34.666352][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 34.674341][ T304] RBP: ffffc90000e17ab8 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 34.682416][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 34.690406][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 34.698388][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 34.707357][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.713980][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 34.721998][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.729984][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.737977][ T304] Call Trace: [ 34.741279][ T304] [ 34.744225][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 34.749876][ T304] rb_advance_reader+0x2b/0x770 [ 34.754738][ T304] ring_buffer_consume+0x1e7/0x370 [ 34.759865][ T304] ? __cfi_ring_buffer_consume+0x10/0x10 [ 34.765508][ T304] ? print_trace_line+0x393/0x6b0 [ 34.770559][ T304] tracing_read_pipe+0x5b3/0xaf0 [ 34.775512][ T304] ? __cfi_tracing_read_pipe+0x10/0x10 [ 34.780994][ T304] vfs_read+0x286/0x930 [ 34.785170][ T304] ? __cfi_vfs_read+0x10/0x10 [ 34.789866][ T304] ? memset+0x35/0x40 [ 34.793860][ T304] ? ptrace_stop+0x6dc/0x8e0 [ 34.798464][ T304] ? __kasan_check_read+0x11/0x20 [ 34.803496][ T304] ? __fdget_pos+0x2d4/0x380 [ 34.808102][ T304] ksys_read+0x14a/0x260 [ 34.812355][ T304] ? __cfi_ksys_read+0x10/0x10 [ 34.817220][ T304] ? fpregs_restore_userregs+0x128/0x260 [ 34.822865][ T304] __x64_sys_read+0x7b/0x90 [ 34.827391][ T304] x64_sys_call+0x2f/0x9a0 [ 34.831825][ T304] do_syscall_64+0x4c/0xa0 [ 34.836260][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.840955][ T304] ? clear_bhb_loop+0x30/0x80 [ 34.845641][ T304] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 34.851565][ T304] RIP: 0033:0x7f6478261d79 [ 34.856084][ T304] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48 [ 34.875708][ T304] RSP: 002b:00007ffc1b15c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 34.884135][ T304] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f6478261d79 [ 34.892126][ T304] RDX: 0000000000002000 RSI: 0000200000004000 RDI: 0000000000000005 [ 34.900112][ T304] RBP: 0065636172742f2e R08: 00000000000a8c88 R09: 00000000000a8c88 [ 34.908092][ T304] R10: 00000000000a8c88 R11: 0000000000000246 R12: 00007ffc1b15c158 [ 34.916070][ T304] R13: 0000000000000002 R14: 00007f64782f2ca0 R15: 0000000000000002 [ 34.924054][ T304] [ 34.927080][ T304] ---[ end trace 0000000000000000 ]--- [ 34.932713][ T304] ------------[ cut here ]------------ [ 34.938188][ T304] WARNING: CPU: 0 PID: 304 at kernel/trace/ring_buffer.c:4773 rb_get_reader_page+0xada/0xc60 [ 34.948371][ T304] Modules linked in: [ 34.952274][ T304] CPU: 0 PID: 304 Comm: syz-executor564 Tainted: G B W syzkaller #0 [ 34.961475][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 34.971542][ T304] RIP: 0010:rb_get_reader_page+0xada/0xc60 [ 34.977370][ T304] Code: df 42 80 3c 20 00 74 0d 48 8d 7b 10 e8 8f 2c 43 00 48 8d 4b 10 48 8b 19 48 8d 7b 08 be 04 00 00 00 e8 1a 2f 43 00 f0 ff 43 08 <0f> 0b 48 83 7c 24 20 00 0f 85 74 ff ff ff e8 23 a1 fd ff e9 13 fe [ 34.996989][ T304] RSP: 0018:ffffc90000e17820 EFLAGS: 00010002 [ 35.003076][ T304] RAX: 1ffff1102000aa01 RBX: ffff888100052600 RCX: ffffffff8173c866 [ 35.011063][ T304] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888100052608 [ 35.019045][ T304] RBP: ffffc90000e17990 R08: ffff88810005260b R09: 1ffff1102000a4c1 [ 35.027131][ T304] R10: dffffc0000000000 R11: ffffed102000a4c2 R12: dffffc0000000000 [ 35.035114][ T304] R13: 1ffff1102000a126 R14: 1ffff1102000a123 R15: 0000000000000438 [ 35.043091][ T304] FS: 0000555594cdd3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 35.052224][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.058823][ T304] CR2: 0000200000001000 CR3: 0000000126023000 CR4: 00000000003506b0 [ 35.066813][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.074798][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.082778][ T304] Call Trace: [ 35.086073][ T304] [ 35.089022][ T304] ? ring_buffer_read_page+0x1260/0x1260 [ 35.094677][ T304] ? __schedule+0xcbb/0x1700 [ 35.099293][ T304] ? __kasan_check_write+0x14/0x20 [ 35.104426][ T304] ? _raw_spin_lock+0x94/0xf0 [ 35.109126][ T304] rb_buffer_peek+0x5f/0x930 [ 35.113734][ T304] ring_buffer_peek+0x184/0x3b0 [ 35.118610][ T304] ? __kasan_check_read+0x11/0x20 [ 35.123649][ T304] ? __cfi_ring_buffer_peek+0x10/0x10 [ 35.129040][ T304] ? _find_next_bit+0x8a/0x130