[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.996968][ T26] audit: type=1800 audit(1568648257.660:25): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.040486][ T26] audit: type=1800 audit(1568648257.660:26): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.076144][ T26] audit: type=1800 audit(1568648257.660:27): pid=8478 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.188' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 82.488648][ T8633] FAULT_INJECTION: forcing a failure. [ 82.488648][ T8633] name failslab, interval 1, probability 0, space 0, times 1 [ 82.501515][ T8633] CPU: 1 PID: 8633 Comm: syz-executor797 Not tainted 5.3.0-rc8-next-20190915 #0 [ 82.510512][ T8633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.520558][ T8633] Call Trace: [ 82.523829][ T8633] dump_stack+0x172/0x1f0 [ 82.528155][ T8633] should_fail.cold+0xa/0x15 [ 82.532729][ T8633] ? fault_create_debugfs_attr+0x180/0x180 [ 82.538523][ T8633] ? ___might_sleep+0x163/0x2c0 [ 82.544487][ T8633] __should_failslab+0x121/0x190 [ 82.549405][ T8633] should_failslab+0x9/0x14 [ 82.553884][ T8633] __kmalloc_track_caller+0x2dc/0x760 [ 82.559234][ T8633] ? kmem_cache_alloc_trace+0x397/0x790 [ 82.564754][ T8633] ? trace_probe_init+0xda/0x510 [ 82.569667][ T8633] kstrdup+0x3a/0x70 [ 82.573538][ T8633] trace_probe_init+0xda/0x510 [ 82.578278][ T8633] alloc_trace_uprobe+0x5e/0x250 [ 82.583191][ T8633] create_local_trace_uprobe+0x109/0x4a0 [ 82.588800][ T8633] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.595028][ T8633] ? bpf_get_uprobe_info+0x340/0x340 [ 82.600308][ T8633] ? memdup_user+0x65/0xb0 [ 82.604702][ T8633] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.610925][ T8633] perf_uprobe_init+0x131/0x210 [ 82.615752][ T8633] perf_uprobe_event_init+0x106/0x1a0 [ 82.621107][ T8633] perf_try_init_event+0x135/0x590 [ 82.626195][ T8633] perf_event_alloc.part.0+0x1b89/0x33d0 [ 82.631816][ T8633] ? lock_downgrade+0x920/0x920 [ 82.636655][ T8633] ? list_del_event+0x7f0/0x7f0 [ 82.641483][ T8633] ? __kasan_check_read+0x11/0x20 [ 82.646489][ T8633] ? do_raw_spin_unlock+0x57/0x270 [ 82.651659][ T8633] __do_sys_perf_event_open+0xa2d/0x2d00 [ 82.657281][ T8633] ? lock_downgrade+0x920/0x920 [ 82.662557][ T8633] ? perf_event_set_output+0x4e0/0x4e0 [ 82.667995][ T8633] ? __sb_end_write+0x11a/0x1a0 [ 82.672823][ T8633] ? vfs_write+0x160/0x5d0 [ 82.677239][ T8633] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 82.682679][ T8633] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 82.688115][ T8633] ? do_syscall_64+0x26/0x760 [ 82.692773][ T8633] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.698819][ T8633] ? do_syscall_64+0x26/0x760 [ 82.703480][ T8633] __x64_sys_perf_event_open+0xbe/0x150 [ 82.709006][ T8633] do_syscall_64+0xfa/0x760 [ 82.713487][ T8633] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.719354][ T8633] RIP: 0033:0x441269 [ 82.723227][ T8633] Code: e8 5c ae 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 82.742807][ T8633] RSP: 002b:00007ffc04171a18 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 82.751198][ T8633] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441269 [ 82.759144][ T8633] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 [ 82.767100][ T8633] RBP: 00007ffc04171a30 R08: 0000000000000000 R09: 0000000000000000 [ 82.775050][ T8633] R10: 00000000ffffffff R11: 0000000000000246 R12: ffffffffffffffff [ 82.782996][ T8633] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 82.791302][ T8633] kasan: CONFIG_KASAN_INLINE enabled [ 82.796705][ T8633] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 82.804813][ T8633] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 82.811734][ T8633] CPU: 1 PID: 8633 Comm: syz-executor797 Not tainted 5.3.0-rc8-next-20190915 #0 [ 82.820723][ T8633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.830759][ T8633] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 82.836710][ T8633] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 82.856321][ T8633] RSP: 0018:ffff888090a7f9d8 EFLAGS: 00010246 [ 82.862359][ T8633] RAX: dffffc0000000000 RBX: ffff88809b6f90c0 RCX: ffffffff817c0ca9 [ 82.870357][ T8633] RDX: 0000000000000000 RSI: ffffffff817c0a73 RDI: ffff88809b6f90c8 [ 82.878305][ T8633] RBP: ffff888090a7f9f0 R08: ffff88809a04e600 R09: ffffed1015d26aed [ 82.886249][ T8633] R10: ffffed1015d26aec R11: ffff8880ae935763 R12: 0000000000000000 [ 82.894195][ T8633] R13: 0000000000000000 R14: ffff88809b6f90c0 R15: ffff88809b6f90d0 [ 82.902141][ T8633] FS: 0000555556f99880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.911045][ T8633] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.917609][ T8633] CR2: 00000000006cc090 CR3: 00000000962b2000 CR4: 00000000001406e0 [ 82.925555][ T8633] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.933499][ T8633] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.941441][ T8633] Call Trace: [ 82.944716][ T8633] trace_probe_unlink+0x1f/0x200 [ 82.949629][ T8633] trace_probe_cleanup+0xd3/0x110 [ 82.954628][ T8633] trace_probe_init+0x3f2/0x510 [ 82.959450][ T8633] alloc_trace_uprobe+0x5e/0x250 [ 82.964362][ T8633] create_local_trace_uprobe+0x109/0x4a0 [ 82.969980][ T8633] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.976194][ T8633] ? bpf_get_uprobe_info+0x340/0x340 [ 82.981455][ T8633] ? memdup_user+0x65/0xb0 [ 82.985854][ T8633] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.992067][ T8633] perf_uprobe_init+0x131/0x210 [ 82.996891][ T8633] perf_uprobe_event_init+0x106/0x1a0 [ 83.002235][ T8633] perf_try_init_event+0x135/0x590 [ 83.007324][ T8633] perf_event_alloc.part.0+0x1b89/0x33d0 [ 83.012942][ T8633] ? lock_downgrade+0x920/0x920 [ 83.017790][ T8633] ? list_del_event+0x7f0/0x7f0 [ 83.022620][ T8633] ? __kasan_check_read+0x11/0x20 [ 83.027712][ T8633] ? do_raw_spin_unlock+0x57/0x270 [ 83.032806][ T8633] __do_sys_perf_event_open+0xa2d/0x2d00 [ 83.038414][ T8633] ? lock_downgrade+0x920/0x920 [ 83.043242][ T8633] ? perf_event_set_output+0x4e0/0x4e0 [ 83.048685][ T8633] ? __sb_end_write+0x11a/0x1a0 [ 83.053513][ T8633] ? vfs_write+0x160/0x5d0 [ 83.057911][ T8633] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 83.063344][ T8633] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 83.068777][ T8633] ? do_syscall_64+0x26/0x760 [ 83.073431][ T8633] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.079495][ T8633] ? do_syscall_64+0x26/0x760 [ 83.084153][ T8633] __x64_sys_perf_event_open+0xbe/0x150 [ 83.089716][ T8633] do_syscall_64+0xfa/0x760 [ 83.094196][ T8633] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.100063][ T8633] RIP: 0033:0x441269 [ 83.103935][ T8633] Code: e8 5c ae 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 bb 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 83.123512][ T8633] RSP: 002b:00007ffc04171a18 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 83.131896][ T8633] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441269 [ 83.139839][ T8633] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180 [ 83.147784][ T8633] RBP: 00007ffc04171a30 R08: 0000000000000000 R09: 0000000000000000 [ 83.155727][ T8633] R10: 00000000ffffffff R11: 0000000000000246 R12: ffffffffffffffff [ 83.163672][ T8633] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 83.171618][ T8633] Modules linked in: [ 83.175570][ T8633] ---[ end trace ef71b9b0abb5d24f ]--- [ 83.181094][ T8633] RIP: 0010:__list_del_entry_valid+0x85/0xf5 [ 83.187051][ T8633] Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d [ 83.206664][ T8633] RSP: 0018:ffff888090a7f9d8 EFLAGS: 00010246 [ 83.212736][ T8633] RAX: dffffc0000000000 RBX: ffff88809b6f90c0 RCX: ffffffff817c0ca9 [ 83.220714][ T8633] RDX: 0000000000000000 RSI: ffffffff817c0a73 RDI: ffff88809b6f90c8 [ 83.228672][ T8633] RBP: ffff888090a7f9f0 R08: ffff88809a04e600 R09: ffffed1015d26aed [ 83.236696][ T8633] R10: ffffed1015d26aec R11: ffff8880ae935763 R12: 0000000000000000 [ 83.244691][ T8633] R13: 0000000000000000 R14: ffff88809b6f90c0 R15: ffff88809b6f90d0 [ 83.252680][ T8633] FS: 0000555556f99880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 83.261628][ T8633] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.268192][ T8633] CR2: 00000000006cc090 CR3: 00000000962b2000 CR4: 00000000001406e0 [ 83.276686][ T8633] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.284673][ T8633] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.292697][ T8633] Kernel panic - not syncing: Fatal exception [ 83.300013][ T8633] Kernel Offset: disabled [ 83.304332][ T8633] Rebooting in 86400 seconds..