ci2-android-5-15/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-15/syz-executor1265435560 <...> Warning: Permanently added '10.128.0.218' (ED25519) to the list of known hosts. execve("ci2-android-5-15/syz-executor1265435560", ["ci2-android-5-15/syz-executor1265435560"], 0x7ffe01c327b0 /* 10 vars */) = 0 brk(NULL) = 0x5555716b1000 brk(0x5555716b1d40) = 0x5555716b1d40 arch_prctl(ARCH_SET_FS, 0x5555716b13c0) = 0 set_tid_address(0x5555716b1690) = 303 set_robust_list(0x5555716b16a0, 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-5-15/syz-executor1265435560", 4096) = 45 getrandom("\x82\xc8\xd1\x5c\x2d\x83\x79\xec", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555716b1d40 brk(0x5555716d2d40) = 0x5555716d2d40 brk(0x5555716d3000) = 0x5555716d3000 mprotect(0x7f6e6594f000, 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 executing program write(1, "executing program\n", 18) = 18 mkdirat(AT_FDCWD, "./config", 0777) = 0 mount(NULL, "./config", "configfs", 0, NULL) = 0 mkdirat(AT_FDCWD, "./config/usb_gadget/g1", 0777) = 0 [ 31.764617][ T30] audit: type=1400 audit(1788873191.423:64): avc: denied { execmem } for pid=303 comm="syz-executor126" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 31.784175][ T30] audit: type=1400 audit(1788873191.423:65): avc: denied { mounton } for pid=303 comm="syz-executor126" path="/root/config" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 31.792629][ T303] Mass Storage Function, version: 2009/09/11 mkdirat(AT_FDCWD, "./config/usb_gadget/g1/functions/mass_storage.usb0", 0777) = 0 openat(AT_FDCWD, "./config/usb_gadget/g1/functions/mass_storage.usb0/num_buffers", O_WRONLY) = 3 [ 31.813234][ T303] LUN: removable file: (no medium) [ 31.818762][ T30] audit: type=1400 audit(1788873191.423:66): avc: denied { mount } for pid=303 comm="syz-executor126" name="/" dev="configfs" ino=1127 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=filesystem permissive=1 [ 31.824031][ T303] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 31.841947][ T30] audit: type=1400 audit(1788873191.423:67): avc: denied { search } for pid=303 comm="syz-executor126" name="/" dev="configfs" ino=1127 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.853368][ T303] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 31.853394][ T303] CPU: 1 PID: 303 Comm: syz-executor126 Not tainted syzkaller #0 [ 31.853413][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 31.853424][ T303] RIP: 0010:fsg_common_set_num_buffers+0x65/0x2b0 [ 31.875926][ T30] audit: type=1400 audit(1788873191.423:68): avc: denied { write } for pid=303 comm="syz-executor126" name="usb_gadget" dev="configfs" ino=1128 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.884146][ T303] Code: 89 c6 49 bd 00 00 00 00 00 fc ff df bf 00 40 00 00 be c0 0c 00 00 ba 02 00 00 00 e8 95 28 6e fe 48 89 c3 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 1c 1d 7c fe 49 89 1e 48 85 db 0f [ 31.884166][ T303] RSP: 0018:ffffc90000997b08 EFLAGS: 00010202 [ 31.892046][ T30] audit: type=1400 audit(1788873191.423:69): avc: denied { add_name } for pid=303 comm="syz-executor126" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=dir permissive=1 [ 31.901955][ T303] [ 31.901960][ T303] RAX: 0000000000000002 RBX: ffff8881251c4000 RCX: 0000000000000002 [ 31.901975][ T303] RDX: 0000000000000000 RSI: ffffffff832d118b RDI: ffffed1024a39000 [ 31.901987][ T303] RBP: ffffc90000997b50 R08: 0000000000004000 R09: ffffed1024a39000 [ 31.901999][ T303] R10: dffffc0000000000 R11: fffff94000928e33 R12: ffff888123b48400 [ 31.909582][ T30] audit: type=1400 audit(1788873191.423:70): avc: denied { create } for pid=303 comm="syz-executor126" name="g1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:configfs_t tclass=dir permissive=1 [ 31.931436][ T303] R13: dffffc0000000000 R14: 0000000000000010 R15: 0000000000000000 [ 31.931454][ T303] FS: 00005555716b13c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 31.931471][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.931484][ T303] CR2: 00007f6e6595b008 CR3: 00000001097a7000 CR4: 00000000003506a0 [ 31.951289][ T30] audit: type=1400 audit(1788873191.473:71): avc: denied { write } for pid=303 comm="syz-executor126" name="num_buffers" dev="configfs" ino=1493 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 31.957180][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.977838][ T30] audit: type=1400 audit(1788873191.473:72): avc: denied { open } for pid=303 comm="syz-executor126" path="/root/config/usb_gadget/g1/functions/mass_storage.usb0/num_buffers" dev="configfs" ino=1493 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:configfs_t tclass=file permissive=1 [ 31.979994][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.980010][ T303] Call Trace: [ 31.980016][ T303] [ 31.995195][ T30] audit: type=1400 audit(1788873191.653:73): avc: denied { read } for pid=83 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 [ 31.996138][ T303] ? kstrtou8+0xac/0x130 [ 32.162834][ T303] fsg_opts_num_buffers_store+0x138/0x1c0 [ 32.168582][ T303] ? fsg_opts_num_buffers_show+0xb0/0xb0 [ 32.174228][ T303] ? avc_policy_seqno+0x1b/0x70 [ 32.179101][ T303] ? selinux_file_permission+0x2aa/0x510 [ 32.184747][ T303] configfs_write_iter+0x312/0x400 [ 32.189868][ T303] ? fsg_opts_num_buffers_show+0xb0/0xb0 [ 32.195621][ T303] vfs_write+0x831/0xfd0 [ 32.199890][ T303] ? file_end_write+0x1b0/0x1b0 [ 32.204742][ T303] ? _raw_spin_unlock_irq+0x4e/0x70 [ 32.209950][ T303] ? cgroup_leave_frozen+0x165/0x2a0 [ 32.215260][ T303] ? __kasan_check_read+0x11/0x20 [ 32.220533][ T303] ? __fdget_pos+0x2d9/0x380 [ 32.225133][ T303] ksys_write+0x14a/0x260 [ 32.229477][ T303] ? __ia32_sys_read+0x90/0x90 [ 32.234257][ T303] ? debug_smp_processor_id+0x17/0x20 [ 32.239651][ T303] __x64_sys_write+0x7b/0x90 [ 32.244271][ T303] x64_sys_call+0x8ef/0x9a0 [ 32.248797][ T303] do_syscall_64+0x4c/0xa0 [ 32.253314][ T303] ? clear_bhb_loop+0x50/0xa0 [ 32.258010][ T303] ? clear_bhb_loop+0x50/0xa0 [ 32.262701][ T303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 32.268612][ T303] RIP: 0033:0x7f6e658beef9 [ 32.273044][ T303] 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 [ 32.292683][ T303] RSP: 002b:00007ffe8c546458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 32.301117][ T303] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f6e658beef9 [ 32.309112][ T303] RDX: 0000000000000012 RSI: 0000200000000300 RDI: 0000000000000003 [ 32.317112][ T303] RBP: 6769666e6f632f2e R08: 000000000000000f R09: 00007ffe8c546598 [ 32.325128][ T303] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffe8c546588 [ 32.333112][ T303] R13: 0000000000000002 R14: 0000200000000008 R15: 0000000000000002 [ 32.341100][ T303] [ 32.344130][ T303] Modules linked in: [ 32.348584][ T303] ---[ end trace 5e29a1eef4fd0852 ]--- [ 32.354134][ T303] RIP: 0010:fsg_common_set_num_buffers+0x65/0x2b0 [ 32.360612][ T303] Code: 89 c6 49 bd 00 00 00 00 00 fc ff df bf 00 40 00 00 be c0 0c 00 00 ba 02 00 00 00 e8 95 28 6e fe 48 89 c3 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 1c 1d 7c fe 49 89 1e 48 85 db 0f [ 32.380380][ T303] RSP: 0018:ffffc90000997b08 EFLAGS: 00010202 [ 32.386499][ T303] RAX: 0000000000000002 RBX: ffff8881251c4000 RCX: 0000000000000002 [ 32.394548][ T303] RDX: 0000000000000000 RSI: ffffffff832d118b RDI: ffffed1024a39000 [ 32.402657][ T303] RBP: ffffc90000997b50 R08: 0000000000004000 R09: ffffed1024a39000 [ 32.410693][ T303] R10: dffffc0000000000 R11: fffff94000928e33 R12: ffff888123b48400 [ 32.418696][ T303] R13: dffffc0000000000 R14: 0000000000000010 R15: 0000000000000000 [ 32.426839][ T303] FS: 00005555716b13c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 32.435820][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.442466][ T303] CR2: 00007f6e6595b008 CR3: 00000001097a7000 CR4: 00000000003506a0 [ 32.450509][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.458518][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.466649][ T303] Kernel panic - not syncing: Fatal exception [ 32.472992][ T303] Kernel Offset: disabled [ 32.477333][ T303] Rebooting in 86400 seconds..