ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor1530692538 <...> Warning: Permanently added '10.128.0.123' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor1530692538", ["ci2-android-6-1/syz-executor1530692538"], 0x7ffd6ea5f960 /* 10 vars */) = 0 brk(NULL) = 0x5555566b8000 brk(0x5555566b8d40) = 0x5555566b8d40 executing program arch_prctl(ARCH_SET_FS, 0x5555566b83c0) = 0 set_tid_address(0x5555566b8690) = 305 set_robust_list(0x5555566b86a0, 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-executor1530692538", 4096) = 44 getrandom("\xcf\x1c\xc5\x51\x8d\xe4\x74\x2b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555566b8d40 brk(0x5555566d9d40) = 0x5555566d9d40 brk(0x5555566da000) = 0x5555566da000 mprotect(0x7fba2555a000, 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 [ 21.632325][ T28] audit: type=1400 audit(1791300453.718:64): avc: denied { execmem } for pid=305 comm="syz-executor153" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.635266][ T305] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 21.651858][ T28] audit: type=1400 audit(1791300453.718:65): avc: denied { mounton } for pid=305 comm="syz-executor153" path="/root/debug" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.663415][ T305] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 21.663429][ T305] CPU: 0 PID: 305 Comm: syz-executor153 Not tainted syzkaller #0 [ 21.663443][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 21.663451][ T305] RIP: 0010:vsscanf+0x196/0x24b0 [ 21.663506][ 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 [ 21.686444][ T28] audit: type=1400 audit(1791300453.718:66): avc: denied { mount } for pid=305 comm="syz-executor153" name="/" dev="debugfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:debugfs_t tclass=filesystem permissive=1 [ 21.694516][ T305] RSP: 0018:ffffc90000e575e0 EFLAGS: 00010246 [ 21.694532][ T305] RAX: 0000000000000000 RBX: ffffffff85b0df01 RCX: 0000000000000001 [ 21.694543][ T305] RDX: ffffffff84f34d48 RSI: ffffffff878e1370 RDI: 0000000000000030 [ 21.703404][ T28] audit: type=1400 audit(1791300453.788:67): 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 [ 21.712275][ T305] RBP: ffffc90000e57710 R08: ffff88810fe46540 R09: 0000000000000002 [ 21.717454][ T28] audit: type=1400 audit(1791300453.788:68): 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 [ 21.736803][ T305] R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff85b0df00 [ 21.736818][ T305] R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 [ 21.736827][ T305] FS: 00005555566b83c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 21.736841][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.736851][ T305] CR2: 0000200000000240 CR3: 0000000123a5c000 CR4: 00000000003506b0 [ 21.736865][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.759655][ T28] audit: type=1400 audit(1791300453.788:69): 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 [ 21.765309][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.765323][ T305] Call Trace: [ 21.765328][ T305] [ 21.765333][ T305] ? __update_load_avg_cfs_rq+0xb1/0x2e0 [ 21.773629][ T28] audit: type=1400 audit(1791300453.788:70): 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 [ 21.781271][ T305] ? __cfi_vsscanf+0x10/0x10 [ 21.803113][ T28] audit: type=1400 audit(1791300453.798:71): 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 [ 21.810811][ T305] sscanf+0xdf/0x130 [ 21.832737][ T28] audit: type=1400 audit(1791300453.798:72): 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 [ 21.839916][ T305] ? __cfi_sscanf+0x10/0x10 [ 21.839941][ T305] ? mutex_lock_interruptible+0x93/0x1b0 [ 21.848126][ T28] audit: type=1400 audit(1791300453.798:73): 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 [ 21.856824][ T305] ? memcpy+0x56/0x70 [ 21.856845][ T305] split_huge_pages_write+0x37a/0x10d0 [ 21.856863][ T305] ? psi_task_change+0x1c1/0x340 [ 22.039622][ T305] ? __cfi_split_huge_pages_write+0x10/0x10 [ 22.045521][ T305] ? kvm_sched_clock_read+0x18/0x40 [ 22.050715][ T305] ? __this_cpu_preempt_check+0x13/0x20 [ 22.056256][ T305] ? xfd_validate_state+0x70/0x150 [ 22.061376][ T305] ? __kasan_check_write+0x14/0x20 [ 22.066477][ T305] ? debugfs_file_get+0x362/0x450 [ 22.071496][ T305] ? avc_policy_seqno+0x1b/0x70 [ 22.076333][ T305] ? selinux_file_permission+0x2a5/0x510 [ 22.081960][ T305] full_proxy_write+0x121/0x1d0 [ 22.086884][ T305] ? __cfi_full_proxy_write+0x10/0x10 [ 22.092246][ T305] vfs_write+0x3fb/0xd00 [ 22.096478][ T305] ? __cfi_vfs_write+0x10/0x10 [ 22.101225][ T305] ? memset+0x35/0x40 [ 22.105201][ T305] ? ptrace_stop+0x6dc/0x8e0 [ 22.109786][ T305] ? __kasan_check_read+0x11/0x20 [ 22.114819][ T305] ? __fdget_pos+0x2d4/0x380 [ 22.119569][ T305] ksys_write+0x14a/0x260 [ 22.123884][ T305] ? __cfi_ksys_write+0x10/0x10 [ 22.128722][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 22.134341][ T305] __x64_sys_write+0x7b/0x90 [ 22.138917][ T305] x64_sys_call+0x27b/0x9a0 [ 22.143428][ T305] do_syscall_64+0x4c/0xa0 [ 22.147858][ T305] ? clear_bhb_loop+0x30/0x80 [ 22.152533][ T305] ? clear_bhb_loop+0x30/0x80 [ 22.157206][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 22.163095][ T305] RIP: 0033:0x7fba254c9c39 [ 22.167512][ 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 [ 22.188189][ T305] RSP: 002b:00007ffd60422568 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 22.196602][ T305] RAX: ffffffffffffffda RBX: 0067756265642f2e RCX: 00007fba254c9c39 [ 22.204594][ T305] RDX: 0000000000000005 RSI: 0000200000000600 RDI: 0000000000000003 [ 22.212567][ T305] RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffd60422698 [ 22.220583][ T305] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd60422688 [ 22.228667][ T305] R13: 0000000000000002 R14: 00007fba2555aca0 R15: 0000000000000002 [ 22.236633][ T305] [ 22.239637][ T305] Modules linked in: [ 22.244349][ T305] ---[ end trace 0000000000000000 ]--- [ 22.249829][ T305] RIP: 0010:vsscanf+0x196/0x24b0 [ 22.254990][ 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 [ 22.275052][ T305] RSP: 0018:ffffc90000e575e0 EFLAGS: 00010246 [ 22.281144][ T305] RAX: 0000000000000000 RBX: ffffffff85b0df01 RCX: 0000000000000001 [ 22.289226][ T305] RDX: ffffffff84f34d48 RSI: ffffffff878e1370 RDI: 0000000000000030 [ 22.297236][ T305] RBP: ffffc90000e57710 R08: ffff88810fe46540 R09: 0000000000000002 [ 22.305216][ T305] R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff85b0df00 [ 22.313216][ T305] R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 [ 22.321176][ T305] FS: 00005555566b83c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 22.330118][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.336728][ T305] CR2: 00007ffd60421570 CR3: 0000000123a5c000 CR4: 00000000003506a0 [ 22.344729][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.352694][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.360699][ T305] Kernel panic - not syncing: Fatal exception [ 22.367029][ T305] Kernel Offset: disabled [ 22.371342][ T305] Rebooting in 86400 seconds..