ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor2493695178 <...> Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor2493695178", ["ci2-android-6-1/syz-executor2493695178"], 0x7ffd72dc7210 /* 10 vars */) = 0 brk(NULL) = 0x555587595000 brk(0x555587595d40) = 0x555587595d40 arch_prctl(ARCH_SET_FS, 0x5555875953c0) = 0 set_tid_address(0x555587595690) = 305 set_robust_list(0x5555875956a0, 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-executor2493695178", 4096) = 44 getrandom("\x85\xa1\xc8\x97\x5a\x97\x90\xed", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555587595d40 brk(0x5555875b6d40) = 0x5555875b6d40 brk(0x5555875b7000) = 0x5555875b7000 mprotect(0x7f24b8196000, 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, "./debug", 0257) = 0 mount(NULL, "./debug", "debugfs", 0, NULL) = 0 openat(AT_FDCWD, "./debug/split_huge_pages", O_WRONLY) = 3 executing program [ 26.472371][ T28] audit: type=1400 audit(1791304098.589:64): avc: denied { execmem } for pid=305 comm="syz-executor249" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 26.477887][ T305] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 26.493440][ T28] audit: type=1400 audit(1791304098.589:65): avc: denied { mounton } for pid=305 comm="syz-executor249" path="/root/debug" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 26.503625][ T305] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 26.503642][ T305] CPU: 0 PID: 305 Comm: syz-executor249 Not tainted syzkaller #0 [ 26.503662][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 26.503673][ T305] RIP: 0010:vsscanf+0x196/0x24b0 [ 26.530245][ T28] audit: type=1400 audit(1791304098.599:66): avc: denied { mount } for pid=305 comm="syz-executor249" name="/" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=filesystem permissive=1 [ 26.534787][ T305] Code: 48 c7 c6 70 13 8e 87 e8 48 26 7e fc 41 83 fe 25 74 4d 45 85 f6 0f 84 b6 21 00 00 48 ff c3 48 89 5c 24 78 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4f 1b 00 00 41 0f b6 1f 45 0f b6 f6 44 [ 26.543134][ T28] audit: type=1400 audit(1791304098.599:67): avc: denied { read } for pid=85 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 [ 26.552583][ T305] RSP: 0018:ffffc90000dd75e0 EFLAGS: 00010246 [ 26.552605][ T305] RAX: 0000000000000000 RBX: ffffffff85b0df01 RCX: 0000000000000001 [ 26.552620][ T305] RDX: ffffffff84f34d48 RSI: ffffffff878e1370 RDI: 0000000000000030 [ 26.558367][ T28] audit: type=1400 audit(1791304098.599:68): avc: denied { search } for pid=85 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 [ 26.579941][ T305] RBP: ffffc90000dd7710 R08: ffff88810feb2880 R09: 0000000000000002 [ 26.579959][ T305] R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff85b0df00 [ 26.579973][ T305] R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 [ 26.600387][ T28] audit: type=1400 audit(1791304098.599:69): avc: denied { write } for pid=85 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 [ 26.621208][ T305] FS: 00005555875953c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.621231][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.621245][ T305] CR2: 0000200000000240 CR3: 00000001102c5000 CR4: 00000000003506b0 [ 26.621263][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.628204][ T28] audit: type=1400 audit(1791304098.599:70): avc: denied { add_name } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 26.635299][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.635316][ T305] Call Trace: [ 26.635322][ T305] [ 26.635329][ T305] ? __update_load_avg_cfs_rq+0xb1/0x2e0 [ 26.643782][ T28] audit: type=1400 audit(1791304098.599:71): avc: denied { create } for pid=85 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 26.664502][ T305] ? __cfi_vsscanf+0x10/0x10 [ 26.673585][ T28] audit: type=1400 audit(1791304098.599:72): avc: denied { append open } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 26.680485][ T305] sscanf+0xdf/0x130 [ 26.689111][ T28] audit: type=1400 audit(1791304098.599:73): avc: denied { getattr } for pid=85 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 26.709671][ T305] ? __cfi_sscanf+0x10/0x10 [ 26.709707][ T305] ? mutex_lock_interruptible+0x93/0x1b0 [ 26.709747][ T305] ? memcpy+0x56/0x70 [ 26.869547][ T305] split_huge_pages_write+0x37a/0x10d0 [ 26.875019][ T305] ? psi_task_change+0x1c1/0x340 [ 26.879986][ T305] ? __cfi_split_huge_pages_write+0x10/0x10 [ 26.885897][ T305] ? kvm_sched_clock_read+0x18/0x40 [ 26.891119][ T305] ? __this_cpu_preempt_check+0x13/0x20 [ 26.896667][ T305] ? xfd_validate_state+0x70/0x150 [ 26.901786][ T305] ? __kasan_check_write+0x14/0x20 [ 26.907069][ T305] ? debugfs_file_get+0x362/0x450 [ 26.912124][ T305] ? avc_policy_seqno+0x1b/0x70 [ 26.916975][ T305] ? selinux_file_permission+0x2a5/0x510 [ 26.922616][ T305] full_proxy_write+0x121/0x1d0 [ 26.927468][ T305] ? __cfi_full_proxy_write+0x10/0x10 [ 26.932864][ T305] vfs_write+0x3fb/0xd00 [ 26.937121][ T305] ? __cfi_vfs_write+0x10/0x10 [ 26.942321][ T305] ? memset+0x35/0x40 [ 26.946301][ T305] ? ptrace_stop+0x6dc/0x8e0 [ 26.950994][ T305] ? __kasan_check_read+0x11/0x20 [ 26.956549][ T305] ? __fdget_pos+0x2d4/0x380 [ 26.961152][ T305] ksys_write+0x14a/0x260 [ 26.965487][ T305] ? __cfi_ksys_write+0x10/0x10 [ 26.970337][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 26.975975][ T305] __x64_sys_write+0x7b/0x90 [ 26.980568][ T305] x64_sys_call+0x27b/0x9a0 [ 26.985093][ T305] do_syscall_64+0x4c/0xa0 [ 26.989557][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.994238][ T305] ? clear_bhb_loop+0x30/0x80 [ 26.998918][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 27.004864][ T305] RIP: 0033:0x7f24b8105c39 [ 27.009309][ T305] 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 [ 27.028914][ T305] RSP: 002b:00007ffcb064cdc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.037330][ T305] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007f24b8105c39 [ 27.045390][ T305] RDX: 0000000000000005 RSI: 0000200000000600 RDI: 0000000000000003 [ 27.053448][ T305] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffcb064cef8 [ 27.061438][ T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcb064cee8 [ 27.069409][ T305] R13: 0000000000000002 R14: 00007f24b8196ca0 R15: 0000000000000002 [ 27.077385][ T305] [ 27.080411][ T305] Modules linked in: [ 27.084477][ T305] ---[ end trace 0000000000000000 ]--- [ 27.090034][ T305] RIP: 0010:vsscanf+0x196/0x24b0 [ 27.095020][ T305] Code: 48 c7 c6 70 13 8e 87 e8 48 26 7e fc 41 83 fe 25 74 4d 45 85 f6 0f 84 b6 21 00 00 48 ff c3 48 89 5c 24 78 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4f 1b 00 00 41 0f b6 1f 45 0f b6 f6 44 [ 27.114894][ T305] RSP: 0018:ffffc90000dd75e0 EFLAGS: 00010246 [ 27.121040][ T305] RAX: 0000000000000000 RBX: ffffffff85b0df01 RCX: 0000000000000001 [ 27.129078][ T305] RDX: ffffffff84f34d48 RSI: ffffffff878e1370 RDI: 0000000000000030 [ 27.137119][ T305] RBP: ffffc90000dd7710 R08: ffff88810feb2880 R09: 0000000000000002 [ 27.145148][ T305] R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff85b0df00 [ 27.153160][ T305] R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 [ 27.161256][ T305] FS: 00005555875953c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.170223][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.176880][ T305] CR2: 0000200000000240 CR3: 00000001102c5000 CR4: 00000000003506b0 [ 27.184894][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.192978][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.201014][ T305] Kernel panic - not syncing: Fatal exception [ 27.207230][ T305] Kernel Offset: disabled [ 27.211560][ T305] Rebooting in 86400 seconds..