[ 62.978075][ T26] audit: type=1800 audit(1563564638.703:24): pid=9145 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.784815][ T26] audit: type=1800 audit(1563564639.603:25): pid=9145 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.828666][ T26] audit: type=1800 audit(1563564639.603:26): pid=9145 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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 '10.128.0.90' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 75.806493][ T9299] BUG: unable to handle page fault for address: ffff8880d1d8bb6a [ 75.814220][ T9299] #PF: supervisor read access in kernel mode [ 75.820170][ T9299] #PF: error_code(0x0000) - not-present page [ 75.826136][ T9299] PGD b601067 P4D b601067 PUD 0 [ 75.831055][ T9299] Oops: 0000 [#1] PREEMPT SMP KASAN [ 75.836225][ T9299] CPU: 1 PID: 9299 Comm: syz-executor324 Not tainted 5.2.0+ #69 [ 75.843825][ T9299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.853866][ T9299] RIP: 0010:bpf_prog_9e69188709424cd0+0xe35/0x1000 [ 75.860341][ T9299] 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 [ 75.879925][ T9299] RSP: 0018:ffff88808f1afa98 EFLAGS: 00010282 [ 75.886739][ T9299] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 [ 75.894693][ T9299] RDX: 0000000000000000 RSI: ffffc90005f33038 RDI: ffff8880d1d8bb64 [ 75.902730][ T9299] RBP: ffff88808f1afac0 R08: ffff8880a4752000 R09: 0000000000000000 [ 75.910677][ T9299] R10: 00000000316abb64 R11: 0000000000000000 R12: 0000000000000001 [ 75.918627][ T9299] R13: 0000000000000000 R14: ffff88808f1afba8 R15: ffff8880a4752000 [ 75.926576][ T9299] FS: 0000555556e80880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 75.935480][ T9299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.942055][ T9299] CR2: ffff8880d1d8bb6a CR3: 0000000090017000 CR4: 00000000001406e0 [ 75.950072][ T9299] Call Trace: [ 75.953350][ T9299] bpf_test_run+0x31f/0xac0 [ 75.957832][ T9299] ? copy_overflow+0x30/0x30 [ 75.962400][ T9299] ? __build_skb+0x58/0x70 [ 75.966801][ T9299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.973023][ T9299] bpf_prog_test_run_skb+0x939/0x1310 [ 75.978389][ T9299] ? bpf_test_init.isra.0+0x100/0x100 [ 75.983737][ T9299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.990633][ T9299] ? bpf_prog_add+0x69/0xd0 [ 75.995114][ T9299] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.001362][ T9299] ? __bpf_prog_get+0x97/0x290 [ 76.006111][ T9299] ? bpf_test_init.isra.0+0x100/0x100 [ 76.011468][ T9299] __do_sys_bpf+0x15b4/0x42f0 [ 76.016124][ T9299] ? bpf_prog_load+0x1670/0x1670 [ 76.021041][ T9299] ? lock_downgrade+0x920/0x920 [ 76.025871][ T9299] ? __kasan_check_write+0x14/0x20 [ 76.030969][ T9299] ? up_read+0x159/0x570 [ 76.035196][ T9299] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.040631][ T9299] ? do_syscall_64+0x26/0x6a0 [ 76.045313][ T9299] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.051365][ T9299] ? do_syscall_64+0x26/0x6a0 [ 76.056026][ T9299] __x64_sys_bpf+0x73/0xb0 [ 76.060423][ T9299] do_syscall_64+0xfd/0x6a0 [ 76.064906][ T9299] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 76.070774][ T9299] RIP: 0033:0x4403b9 [ 76.074646][ T9299] 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 76.094239][ T9299] RSP: 002b:00007fff15bbb6b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 76.102630][ T9299] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403b9 [ 76.110579][ T9299] RDX: 0000000000000028 RSI: 0000000020000040 RDI: 000000000000000a [ 76.118527][ T9299] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 76.126479][ T9299] R10: 0000000000401cd0 R11: 0000000000000246 R12: 0000000000401c40 [ 76.134429][ T9299] R13: 0000000000401cd0 R14: 0000000000000000 R15: 0000000000000000 [ 76.142402][ T9299] Modules linked in: [ 76.146273][ T9299] CR2: ffff8880d1d8bb6a [ 76.150428][ T9299] ---[ end trace 4879985db47dca34 ]--- [ 76.155894][ T9299] RIP: 0010:bpf_prog_9e69188709424cd0+0xe35/0x1000 [ 76.162385][ T9299] 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 [ 76.181967][ T9299] RSP: 0018:ffff88808f1afa98 EFLAGS: 00010282 [ 76.188011][ T9299] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dffffc0000000000 [ 76.195961][ T9299] RDX: 0000000000000000 RSI: ffffc90005f33038 RDI: ffff8880d1d8bb64 [ 76.203916][ T9299] RBP: ffff88808f1afac0 R08: ffff8880a4752000 R09: 0000000000000000 [ 76.211875][ T9299] R10: 00000000316abb64 R11: 0000000000000000 R12: 0000000000000001 [ 76.219848][ T9299] R13: 0000000000000000 R14: ffff88808f1afba8 R15: ffff8880a4752000 [ 76.227805][ T9299] FS: 0000555556e80880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 76.236738][ T9299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.243310][ T9299] CR2: ffff8880d1d8bb6a CR3: 0000000090017000 CR4: 00000000001406e0 [ 76.251266][ T9299] Kernel panic - not syncing: Fatal exception [ 76.258327][ T9299] Kernel Offset: disabled [ 76.262648][ T9299] Rebooting in 86400 seconds..