[info] Using makefile-style concurrent boot in runlevel 2. [ 25.347610] audit: type=1800 audit(1543575637.973:21): pid=5834 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 25.385886] audit: type=1800 audit(1543575637.983:22): pid=5834 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.10.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.435831] ------------[ cut here ]------------ [ 42.440882] kernel BUG at security/keys/keyring.c:1214! [ 42.446486] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 42.451920] CPU: 0 PID: 5991 Comm: syz-executor091 Not tainted 4.20.0-rc4+ #355 [ 42.459350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.468694] RIP: 0010:__key_link_begin+0x23a/0x300 [ 42.473603] Code: fe 48 c7 c7 c0 bb 87 89 e8 03 1f 1f fe eb ac e8 5c 27 3e fe 48 c7 c7 c0 bb 87 89 e8 e0 ea 99 04 e9 e3 fe ff ff e8 46 27 3e fe <0f> 0b e8 3f 27 3e fe 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 fc [ 42.492489] RSP: 0018:ffff8881cc8a7b10 EFLAGS: 00010293 [ 42.498029] RAX: ffff8881b39581c0 RBX: ffff8881d45a7040 RCX: ffffffff834161cf [ 42.505427] RDX: 0000000000000000 RSI: ffffffff834163ba RDI: 0000000000000007 [ 42.512735] RBP: ffff8881cc8a7b40 R08: ffff8881b39581c0 R09: fffffbfff130f658 [ 42.520096] R10: fffffbfff130f658 R11: ffffffff8987b2c3 R12: ffff8881cc8a7c48 [ 42.527352] R13: 0000000000000000 R14: ffff8881d45a71c0 R15: ffff8881d45a7040 [ 42.534615] FS: 0000000002095880(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 [ 42.542826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.548716] CR2: 0000000020cab000 CR3: 00000001c2ac0000 CR4: 00000000001406f0 [ 42.556135] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.563388] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.570653] Call Trace: [ 42.573320] request_key_and_link+0x737/0x17a0 [ 42.577965] ? call_sbin_request_key+0xf80/0xf80 [ 42.582708] ? lock_release+0xa00/0xa00 [ 42.586676] ? perf_trace_sched_process_exec+0x860/0x860 [ 42.592201] ? join_session_keyring+0x340/0x340 [ 42.597014] ? usercopy_warn+0x110/0x110 [ 42.601186] ? keyring_alloc+0xc0/0xc0 [ 42.605061] ? __down_interruptible+0x700/0x700 [ 42.609792] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 42.615403] __x64_sys_request_key+0x305/0x400 [ 42.620029] ? __ia32_sys_add_key+0x4f0/0x4f0 [ 42.624506] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.629864] ? trace_hardirqs_off_caller+0x310/0x310 [ 42.635063] ? __sys_setresuid+0x6f3/0x820 [ 42.639305] do_syscall_64+0x1b9/0x820 [ 42.643171] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 42.648536] ? syscall_return_slowpath+0x5e0/0x5e0 [ 42.653445] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.658269] ? trace_hardirqs_on_caller+0x310/0x310 [ 42.663267] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 42.668264] ? prepare_exit_to_usermode+0x291/0x3b0 [ 42.673271] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.678144] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 42.683381] RIP: 0033:0x440139 [ 42.686561] 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 [ 42.705670] RSP: 002b:00007ffd4d32c838 EFLAGS: 00000217 ORIG_RAX: 00000000000000f9 [ 42.713365] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440139 [ 42.720780] RDX: 0000000020000200 RSI: 0000000020000040 RDI: 0000000020000000 [ 42.728034] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 42.735290] R10: 0000000034dd75c5 R11: 0000000000000217 R12: 00000000004019c0 [ 42.742645] R13: 0000000000401a50 R14: 0000000000000000 R15: 0000000000000000 [ 42.749905] Modules linked in: [ 42.753627] ---[ end trace 32671005c2f2b0ae ]--- [ 42.758427] RIP: 0010:__key_link_begin+0x23a/0x300 [ 42.763349] Code: fe 48 c7 c7 c0 bb 87 89 e8 03 1f 1f fe eb ac e8 5c 27 3e fe 48 c7 c7 c0 bb 87 89 e8 e0 ea 99 04 e9 e3 fe ff ff e8 46 27 3e fe <0f> 0b e8 3f 27 3e fe 48 8d bb ce 00 00 00 48 b8 00 00 00 00 00 fc [ 42.782940] RSP: 0018:ffff8881cc8a7b10 EFLAGS: 00010293 [ 42.788354] RAX: ffff8881b39581c0 RBX: ffff8881d45a7040 RCX: ffffffff834161cf [ 42.795856] RDX: 0000000000000000 RSI: ffffffff834163ba RDI: 0000000000000007 [ 42.803250] RBP: ffff8881cc8a7b40 R08: ffff8881b39581c0 R09: fffffbfff130f658 [ 42.810585] R10: fffffbfff130f658 R11: ffffffff8987b2c3 R12: ffff8881cc8a7c48 [ 42.818221] R13: 0000000000000000 R14: ffff8881d45a71c0 R15: ffff8881d45a7040 [ 42.825491] FS: 0000000002095880(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 [ 42.833727] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.839739] CR2: 0000000020cab000 CR3: 00000001c2ac0000 CR4: 00000000001406f0 [ 42.847005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.858120] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.865392] Kernel panic - not syncing: Fatal exception [ 42.871882] Kernel Offset: disabled [ 42.875505] Rebooting in 86400 seconds..