[ 39.949032][ T26] audit: type=1800 audit(1560932736.703:26): pid=7673 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.971133][ T26] audit: type=1800 audit(1560932736.703:27): pid=7673 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.014726][ T26] audit: type=1800 audit(1560932736.703:28): pid=7673 uid=0 auid=4294967295 ses=4294967295 subj=_ 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. [ 40.759598][ T26] audit: type=1800 audit(1560932737.543:29): pid=7673 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 79.157098][ T7825] kasan: CONFIG_KASAN_INLINE enabled [ 79.162594][ T7825] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 79.170697][ T7825] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 79.177618][ T7825] CPU: 1 PID: 7825 Comm: syz-executor108 Not tainted 5.2.0-rc5+ #3 [ 79.185479][ T7825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.195508][ T7825] RIP: 0010:btf_array_resolve+0x1b4/0x18f0 [ 79.201293][ T7825] Code: 00 00 00 00 00 fc ff df 42 80 3c 30 00 74 08 48 89 df e8 ff 86 25 00 48 8b 03 48 89 44 24 70 48 8d 50 04 49 89 d7 49 c1 ef 03 <43> 8a 04 37 84 c0 48 89 54 24 30 0f 85 ec 10 00 00 44 8b 32 44 89 [ 79.221087][ T7825] RSP: 0018:ffff888098a27560 EFLAGS: 00010247 [ 79.227135][ T7825] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888096860440 [ 79.235079][ T7825] RDX: 0000000000000004 RSI: 0000000000000002 RDI: 0000000000000001 [ 79.243030][ T7825] RBP: ffff888098a27690 R08: ffffffff818953cd R09: ffffffff8188fb11 [ 79.250969][ T7825] R10: ffff888096860440 R11: 0000000000000003 R12: 0000000000000002 [ 79.259064][ T7825] R13: 1ffff11012edb311 R14: dffffc0000000000 R15: 0000000000000000 [ 79.267074][ T7825] FS: 0000555556912880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 79.275976][ T7825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.282527][ T7825] CR2: 0000000020000100 CR3: 000000008cea2000 CR4: 00000000001406e0 [ 79.290471][ T7825] Call Trace: [ 79.293834][ T7825] ? __btf_verifier_log_type+0x5c0/0x5c0 [ 79.299625][ T7825] ? btf_array_check_meta+0x2b0/0x2b0 [ 79.305030][ T7825] btf_resolve+0x3ed/0xda0 [ 79.309432][ T7825] ? btf_sec_info_cmp+0x110/0x110 [ 79.314427][ T7825] ? kasan_kmalloc+0x9/0x10 [ 79.318900][ T7825] ? __kmalloc_node+0x4d/0x60 [ 79.323555][ T7825] btf_new_fd+0x216a/0x37b0 [ 79.328054][ T7825] ? __might_fault+0xf9/0x160 [ 79.332708][ T7825] ? btf_release+0xd0/0xd0 [ 79.337120][ T7825] __do_sys_bpf+0x1212/0xc5d0 [ 79.341772][ T7825] ? pagevec_lru_move_fn+0x1f5/0x270 [ 79.347175][ T7825] ? lru_add_page_tail+0x1140/0x1140 [ 79.352437][ T7825] ? check_preemption_disabled+0xb7/0x280 [ 79.358137][ T7825] ? __bpf_prog_put_rcu+0x320/0x320 [ 79.363448][ T7825] ? trace_hardirqs_on+0x74/0x80 [ 79.368365][ T7825] ? do_huge_pmd_anonymous_page+0x1356/0x1940 [ 79.374424][ T7825] ? thp_get_unmapped_area+0xa0/0xa0 [ 79.379696][ T7825] ? handle_mm_fault+0x10b2/0x6130 [ 79.384793][ T7825] ? finish_fault+0x220/0x220 [ 79.389448][ T7825] ? kasan_check_write+0x14/0x20 [ 79.394359][ T7825] ? check_preemption_disabled+0xb7/0x280 [ 79.400054][ T7825] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 79.405492][ T7825] ? trace_irq_disable_rcuidle+0x23/0x1c0 [ 79.411188][ T7825] ? do_syscall_64+0x1d/0x140 [ 79.415846][ T7825] __x64_sys_bpf+0x7a/0x90 [ 79.420282][ T7825] do_syscall_64+0xfe/0x140 [ 79.424762][ T7825] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.430629][ T7825] RIP: 0033:0x4401f9 [ 79.434489][ T7825] 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 [ 79.454064][ T7825] RSP: 002b:00007ffde88cfce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 79.462448][ T7825] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401f9 [ 79.470396][ T7825] RDX: 0000000000000020 RSI: 0000000020000100 RDI: 0000000000000012 [ 79.478380][ T7825] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 79.486329][ T7825] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401a80 [ 79.494272][ T7825] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 79.502371][ T7825] Modules linked in: [ 79.507197][ T7825] ---[ end trace 929e38cf8f1c69c9 ]--- [ 79.512787][ T7825] RIP: 0010:btf_array_resolve+0x1b4/0x18f0 [ 79.518622][ T7825] Code: 00 00 00 00 00 fc ff df 42 80 3c 30 00 74 08 48 89 df e8 ff 86 25 00 48 8b 03 48 89 44 24 70 48 8d 50 04 49 89 d7 49 c1 ef 03 <43> 8a 04 37 84 c0 48 89 54 24 30 0f 85 ec 10 00 00 44 8b 32 44 89 [ 79.538304][ T7825] RSP: 0018:ffff888098a27560 EFLAGS: 00010247 [ 79.544349][ T7825] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888096860440 [ 79.552399][ T7825] RDX: 0000000000000004 RSI: 0000000000000002 RDI: 0000000000000001 [ 79.560383][ T7825] RBP: ffff888098a27690 R08: ffffffff818953cd R09: ffffffff8188fb11 [ 79.568386][ T7825] R10: ffff888096860440 R11: 0000000000000003 R12: 0000000000000002 [ 79.576348][ T7825] R13: 1ffff11012edb311 R14: dffffc0000000000 R15: 0000000000000000 [ 79.584469][ T7825] FS: 0000555556912880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 79.593497][ T7825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.600173][ T7825] CR2: 0000000020000100 CR3: 000000008cea2000 CR4: 00000000001406e0 [ 79.608157][ T7825] Kernel panic - not syncing: Fatal exception [ 79.615196][ T7825] Kernel Offset: disabled [ 79.619515][ T7825] Rebooting in 86400 seconds..