[ 72.776540][ T26] audit: type=1800 audit(1563555181.522:27): pid=9704 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 72.802461][ T26] audit: type=1800 audit(1563555181.522:28): pid=9704 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 73.579712][ T26] audit: type=1800 audit(1563555182.412:29): pid=9704 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 73.616159][ T26] audit: type=1800 audit(1563555182.412:30): pid=9704 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 91.457477][ T9857] BUG: unable to handle page fault for address: ffff8880db12e02a [ 91.465463][ T9857] #PF: supervisor read access in kernel mode [ 91.471766][ T9857] #PF: error_code(0x0000) - not-present page [ 91.477743][ T9857] PGD b401067 P4D b401067 PUD 0 [ 91.482678][ T9857] Oops: 0000 [#1] PREEMPT SMP KASAN [ 91.487867][ T9857] CPU: 0 PID: 9857 Comm: syz-executor228 Not tainted 5.2.0+ #41 [ 91.495481][ T9857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.505546][ T9857] RIP: 0010:bpf_prog_9e69188709424cd0+0xe73/0x1000 [ 91.512087][ T9857] Code: cc cc cc 55 48 89 e5 48 81 ec 00 00 00 00 53 41 55 41 56 41 57 6a 00 31 c0 48 8b bf c0 00 00 00 44 8b 97 bc 00 00 00 4c 01 d7 <48> 0f b7 7f 06 5b 41 5f 41 5e 41 5d 5b c9 c3 cc cc cc cc cc cc cc [ 91.531878][ T9857] RSP: 0018:ffff88809cb97a98 EFLAGS: 00010286 [ 91.537930][ T9857] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 [ 91.545995][ T9857] RDX: 0000000000000000 RSI: ffffc90005de9038 RDI: ffff8880db12e024 [ 91.553961][ T9857] RBP: ffff88809cb97ac0 R08: ffff8880a01ea040 R09: 0000000000000000 [ 91.562026][ T9857] R10: 00000000316abb64 R11: 0000000000000000 R12: 0000000000000001 [ 91.569996][ T9857] R13: 0000000000000000 R14: ffff88809cb97ba8 R15: ffff8880a01ea040 [ 91.577956][ T9857] FS: 0000555556e9a880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.586872][ T9857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.593618][ T9857] CR2: ffff8880db12e02a CR3: 00000000a0843000 CR4: 00000000001406f0 [ 91.601575][ T9857] Call Trace: [ 91.604858][ T9857] bpf_test_run+0x31f/0xac0 [ 91.609474][ T9857] ? copy_overflow+0x30/0x30 [ 91.614052][ T9857] ? __build_skb+0x58/0x70 [ 91.618497][ T9857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.624727][ T9857] bpf_prog_test_run_skb+0x939/0x1310 [ 91.630089][ T9857] ? bpf_test_init.isra.0+0x100/0x100 [ 91.635531][ T9857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.641775][ T9857] ? bpf_prog_add+0x69/0xd0 [ 91.646270][ T9857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.652503][ T9857] ? __bpf_prog_get+0x97/0x290 [ 91.657436][ T9857] ? bpf_test_init.isra.0+0x100/0x100 [ 91.662903][ T9857] __do_sys_bpf+0x15b4/0x42f0 [ 91.667786][ T9857] ? bpf_prog_load+0x1670/0x1670 [ 91.672714][ T9857] ? lock_downgrade+0x920/0x920 [ 91.677552][ T9857] ? __kasan_check_write+0x14/0x20 [ 91.682672][ T9857] ? up_read+0x159/0x570 [ 91.687004][ T9857] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.692474][ T9857] ? do_syscall_64+0x26/0x6a0 [ 91.697142][ T9857] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.703608][ T9857] ? do_syscall_64+0x26/0x6a0 [ 91.708288][ T9857] __x64_sys_bpf+0x73/0xb0 [ 91.712791][ T9857] do_syscall_64+0xfd/0x6a0 [ 91.717290][ T9857] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.723205][ T9857] RIP: 0033:0x441399 [ 91.727163][ T9857] Code: e8 fc ab 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 91.746793][ T9857] RSP: 002b:00007ffcdbbd7c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 91.755241][ T9857] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441399 [ 91.763336][ T9857] RDX: 0000000000000028 RSI: 0000000020000040 RDI: 000000000000000a [ 91.771348][ T9857] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 91.779665][ T9857] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021c0 [ 91.787629][ T9857] R13: 0000000000402250 R14: 0000000000000000 R15: 0000000000000000 [ 91.795594][ T9857] Modules linked in: [ 91.799477][ T9857] CR2: ffff8880db12e02a [ 91.803651][ T9857] ---[ end trace c121c4b2aab3ad3c ]--- [ 91.809097][ T9857] RIP: 0010:bpf_prog_9e69188709424cd0+0xe73/0x1000 [ 91.815748][ T9857] Code: cc cc cc 55 48 89 e5 48 81 ec 00 00 00 00 53 41 55 41 56 41 57 6a 00 31 c0 48 8b bf c0 00 00 00 44 8b 97 bc 00 00 00 4c 01 d7 <48> 0f b7 7f 06 5b 41 5f 41 5e 41 5d 5b c9 c3 cc cc cc cc cc cc cc [ 91.835350][ T9857] RSP: 0018:ffff88809cb97a98 EFLAGS: 00010286 [ 91.841533][ T9857] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 [ 91.849491][ T9857] RDX: 0000000000000000 RSI: ffffc90005de9038 RDI: ffff8880db12e024 [ 91.857646][ T9857] RBP: ffff88809cb97ac0 R08: ffff8880a01ea040 R09: 0000000000000000 [ 91.865604][ T9857] R10: 00000000316abb64 R11: 0000000000000000 R12: 0000000000000001 [ 91.873565][ T9857] R13: 0000000000000000 R14: ffff88809cb97ba8 R15: ffff8880a01ea040 [ 91.881634][ T9857] FS: 0000555556e9a880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.890686][ T9857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.897435][ T9857] CR2: ffff8880db12e02a CR3: 00000000a0843000 CR4: 00000000001406f0 [ 91.905398][ T9857] Kernel panic - not syncing: Fatal exception [ 91.912425][ T9857] Kernel Offset: disabled [ 91.916838][ T9857] Rebooting in 86400 seconds..