[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 54.310494][ T26] audit: type=1800 audit(1569057842.273:25): pid=8483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.349235][ T26] audit: type=1800 audit(1569057842.273:26): pid=8483 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.382993][ T26] audit: type=1800 audit(1569057842.273:27): pid=8483 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 63.350666][ T8639] FAULT_INJECTION: forcing a failure. [ 63.350666][ T8639] name failslab, interval 1, probability 0, space 0, times 1 [ 63.363394][ T8639] CPU: 1 PID: 8639 Comm: syz-executor358 Not tainted 5.3.0+ #0 [ 63.370932][ T8639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.381137][ T8639] Call Trace: [ 63.384413][ T8639] dump_stack+0x172/0x1f0 [ 63.388724][ T8639] should_fail.cold+0xa/0x15 [ 63.393294][ T8639] ? __kasan_check_read+0x11/0x20 [ 63.398309][ T8639] ? fault_create_debugfs_attr+0x180/0x180 [ 63.404094][ T8639] ? __fget+0x384/0x560 [ 63.408234][ T8639] __should_failslab+0x121/0x190 [ 63.413153][ T8639] should_failslab+0x9/0x14 [ 63.417634][ T8639] kmem_cache_alloc_trace+0x4b/0x790 [ 63.422900][ T8639] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 63.429129][ T8639] xsk_map_update_elem+0x255/0xac0 [ 63.434242][ T8639] ? xsk_map_free+0x90/0x90 [ 63.438722][ T8639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.444959][ T8639] ? __kasan_check_read+0x11/0x20 [ 63.450078][ T8639] ? xsk_map_free+0x90/0x90 [ 63.454574][ T8639] map_update_elem+0xc82/0x10b0 [ 63.459473][ T8639] __do_sys_bpf+0x8b5/0x3350 [ 63.464073][ T8639] ? bpf_prog_load+0x1660/0x1660 [ 63.468995][ T8639] ? rcu_read_lock_any_held+0xcd/0xf0 [ 63.474355][ T8639] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 63.479627][ T8639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.485850][ T8639] ? __sb_end_write+0x11a/0x1a0 [ 63.490679][ T8639] ? vfs_write+0x160/0x5d0 [ 63.495083][ T8639] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 63.500536][ T8639] ? do_syscall_64+0x26/0x760 [ 63.505192][ T8639] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.511247][ T8639] ? do_syscall_64+0x26/0x760 [ 63.515906][ T8639] __x64_sys_bpf+0x73/0xb0 [ 63.520303][ T8639] do_syscall_64+0xfa/0x760 [ 63.524794][ T8639] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.530663][ T8639] RIP: 0033:0x440709 [ 63.534533][ T8639] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.554121][ T8639] RSP: 002b:00007ffc8456cd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 63.562711][ T8639] RAX: ffffffffffffffda RBX: 00007ffc8456cd80 RCX: 0000000000440709 [ 63.570665][ T8639] RDX: 0000000000000020 RSI: 0000000020000100 RDI: 0000000000000002 [ 63.578634][ T8639] RBP: 0000000000000005 R08: 0000000000000001 R09: 00007ffc84560033 [ 63.586586][ T8639] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ff0 [ 63.594563][ T8639] R13: 0000000000402080 R14: 0000000000000000 R15: 0000000000000000 [ 63.603010][ T8639] kasan: CONFIG_KASAN_INLINE enabled [ 63.608442][ T8639] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 63.616539][ T8639] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 63.623469][ T8639] CPU: 1 PID: 8639 Comm: syz-executor358 Not tainted 5.3.0+ #0 [ 63.631127][ T8639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.641186][ T8639] RIP: 0010:xsk_map_update_elem+0x79c/0xac0 [ 63.647058][ T8639] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ef 02 00 00 4c 89 e2 4d 89 a7 d8 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 02 00 00 49 8d 7c 24 08 49 8d 87 d0 05 00 00 [ 63.666663][ T8639] RSP: 0018:ffff88808e55fbb8 EFLAGS: 00010246 [ 63.672719][ T8639] RAX: dffffc0000000000 RBX: ffff8880925d5c90 RCX: ffffffff81868070 [ 63.680666][ T8639] RDX: 0000000000000000 RSI: ffffffff81868085 RDI: 0000000000000001 [ 63.688625][ T8639] RBP: ffff88808e55fc78 R08: ffff8880a15823c0 R09: ffffed1011cabf65 [ 63.696573][ T8639] R10: ffffed1011cabf64 R11: 0000000000000003 R12: 0000000000000000 [ 63.704518][ T8639] R13: ffff8880925d5ca0 R14: ffff888089fac040 R15: ffff8880925d56c0 [ 63.712470][ T8639] FS: 00005555564a7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 63.721373][ T8639] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.727928][ T8639] CR2: 0000000020000040 CR3: 00000000a4d9c000 CR4: 00000000001406e0 [ 63.735884][ T8639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.743843][ T8639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.751797][ T8639] Call Trace: [ 63.755072][ T8639] ? xsk_map_free+0x90/0x90 [ 63.759738][ T8639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.766139][ T8639] ? __kasan_check_read+0x11/0x20 [ 63.771138][ T8639] ? xsk_map_free+0x90/0x90 [ 63.776575][ T8639] map_update_elem+0xc82/0x10b0 [ 63.781407][ T8639] __do_sys_bpf+0x8b5/0x3350 [ 63.785971][ T8639] ? bpf_prog_load+0x1660/0x1660 [ 63.790886][ T8639] ? rcu_read_lock_any_held+0xcd/0xf0 [ 63.796230][ T8639] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 63.801493][ T8639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.807709][ T8639] ? __sb_end_write+0x11a/0x1a0 [ 63.812534][ T8639] ? vfs_write+0x160/0x5d0 [ 63.816931][ T8639] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 63.822365][ T8639] ? do_syscall_64+0x26/0x760 [ 63.827016][ T8639] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.833056][ T8639] ? do_syscall_64+0x26/0x760 [ 63.837710][ T8639] __x64_sys_bpf+0x73/0xb0 [ 63.842102][ T8639] do_syscall_64+0xfa/0x760 [ 63.846581][ T8639] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.852448][ T8639] RIP: 0033:0x440709 [ 63.856324][ T8639] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.875902][ T8639] RSP: 002b:00007ffc8456cd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 63.884299][ T8639] RAX: ffffffffffffffda RBX: 00007ffc8456cd80 RCX: 0000000000440709 [ 63.892258][ T8639] RDX: 0000000000000020 RSI: 0000000020000100 RDI: 0000000000000002 [ 63.900303][ T8639] RBP: 0000000000000005 R08: 0000000000000001 R09: 00007ffc84560033 [ 63.908250][ T8639] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ff0 [ 63.916206][ T8639] R13: 0000000000402080 R14: 0000000000000000 R15: 0000000000000000 [ 63.924157][ T8639] Modules linked in: [ 63.928085][ T8639] ---[ end trace 0c52e667328a1061 ]--- [ 63.933575][ T8639] RIP: 0010:xsk_map_update_elem+0x79c/0xac0 [ 63.939577][ T8639] Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ef 02 00 00 4c 89 e2 4d 89 a7 d8 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 02 00 00 49 8d 7c 24 08 49 8d 87 d0 05 00 00 [ 63.959189][ T8639] RSP: 0018:ffff88808e55fbb8 EFLAGS: 00010246 [ 63.965247][ T8639] RAX: dffffc0000000000 RBX: ffff8880925d5c90 RCX: ffffffff81868070 [ 63.973407][ T8639] RDX: 0000000000000000 RSI: ffffffff81868085 RDI: 0000000000000001 [ 63.981401][ T8639] RBP: ffff88808e55fc78 R08: ffff8880a15823c0 R09: ffffed1011cabf65 [ 63.989404][ T8639] R10: ffffed1011cabf64 R11: 0000000000000003 R12: 0000000000000000 [ 63.997395][ T8639] R13: ffff8880925d5ca0 R14: ffff888089fac040 R15: ffff8880925d56c0 [ 64.005407][ T8639] FS: 00005555564a7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 64.014350][ T8639] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.020938][ T8639] CR2: 0000000020000040 CR3: 00000000a4d9c000 CR4: 00000000001406e0 [ 64.028903][ T8639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.036895][ T8639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.044878][ T8639] Kernel panic - not syncing: Fatal exception in interrupt [ 64.053562][ T8639] Kernel Offset: disabled [ 64.057887][ T8639] Rebooting in 86400 seconds..