[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: ssh[ 29.413792] kauditd_printk_skb: 9 callbacks suppressed d[?25l[?1c7[[ 29.413802] audit: type=1800 audit(1541553741.673:33): pid=5614 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 1G[ ok [39[ 29.442775] audit: type=1800 audit(1541553741.683:34): pid=5614 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 ;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 58.058715] audit: type=1400 audit(1541553770.323:35): avc: denied { map } for pid=5791 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.470537] audit: type=1400 audit(1541553776.733:36): avc: denied { map } for pid=5803 comm="syz-executor153" path="/root/syz-executor153765625" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.532229] kasan: CONFIG_KASAN_INLINE enabled [ 65.547970] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 65.564965] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 65.571251] CPU: 1 PID: 6387 Comm: syz-executor153 Not tainted 4.20.0-rc1+ #102 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.578703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.588077] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 [ 65.593542] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 [ 65.612449] RSP: 0018:ffff8801d79ffaa0 EFLAGS: 00010246 [ 65.617824] RAX: 000000000400001d RBX: ffff8801d79ffd60 RCX: ffffffff8342b590 [ 65.625100] RDX: 0000000000000000 RSI: ffffffff8342b59e RDI: 0000000000000001 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.632383] RBP: ffff8801d79ffc08 R08: ffff8801be27e540 R09: ffffed003aec70e0 [ 65.639663] R10: ffffed003aec70e0 R11: 0000000000000001 R12: 00000000200000e8 [ 65.646954] R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff [ 65.654239] FS: 0000000001f12880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 65.662474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.668375] CR2: 00007ffed573ed44 CR3: 00000001be42b000 CR4: 00000000001406e0 [ 65.675654] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.682933] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.690212] Call Trace: [ 65.692818] ? __keyctl_dh_compute.cold.3+0x71/0x71 [ 65.697850] ? retint_kernel+0x2d/0x2d [ 65.701757] ? _copy_from_user+0xbe/0x150 [ 65.705921] ? __sanitizer_cov_trace_pc+0x1/0x50 [ 65.710692] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 65.716239] ? _copy_from_user+0xdf/0x150 [ 65.720397] keyctl_pkey_params_get_2+0x12f/0x580 [ 65.725253] ? keyctl_pkey_params_get+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.730110] ? perf_trace_sched_process_exec+0x860/0x860 [ 65.735586] ? sockfd_lookup_light+0xc5/0x160 [ 65.740096] keyctl_pkey_verify+0xaa/0x400 [ 65.744342] ? keyctl_pkey_e_d_s+0x4f0/0x4f0 [ 65.748766] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 65.753365] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.758743] ? trace_hardirqs_off_caller+0x310/0x310 [ 65.763862] __x64_sys_keyctl+0x101/0x430 [ 65.768027] do_syscall_64+0x1b9/0x820 [ 65.771930] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 65.777305] ? syscall_return_slowpath+0x5e0/0x5e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.782246] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.787114] ? trace_hardirqs_on_caller+0x310/0x310 [ 65.792175] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 65.797213] ? prepare_exit_to_usermode+0x291/0x3b0 [ 65.802248] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 65.807106] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.812302] RIP: 0033:0x444c39 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.815501] Code: e8 ac e8 ff ff 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 2b ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.834409] RSP: 002b:00007ffed573ed38 EFLAGS: 00000286 ORIG_RAX: 00000000000000fa [ 65.842133] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000444c39 [ 65.849416] RDX: 00000000200002c0 RSI: 00000000200000c0 RDI: 000000000000001c [ 65.856693] RBP: 0000000000000000 R08: 0000000020000380 R09: 00000000004002e0 [ 65.863973] R10: 00000000fffffd2a R11: 0000000000000286 R12: 000000000000ffdc [ 65.871252] R13: 0000000000401f80 R14: 0000000000000000 R15: 0000000000000000 [ 65.878534] Modules linked in: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.883994] ---[ end trace 4b43a447d7bb1153 ]--- [ 65.893302] RIP: 0010:keyctl_pkey_params_get+0x2e7/0x550 [ 65.903751] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 f7 01 00 00 4c 8b a4 24 e0 00 00 00 4c 89 e0 4c 89 e2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 e0 01 00 00 41 0f b6 04 24 [ 65.924462] RSP: 0018:ffff8801d79ffaa0 EFLAGS: 00010246 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.937889] RAX: 000000000400001d RBX: ffff8801d79ffd60 RCX: ffffffff8342b590 [ 65.950233] RDX: 0000000000000000 RSI: ffffffff8342b59e RDI: 0000000000000001 [ 65.959001] RBP: ffff8801d79ffc08 R08: ffff8801be27e540 R09: ffffed003aec70e0 [ 65.973725] R10: ffffed003aec70e0 R11: 0000000000000001 R12: 00000000200000e8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.986055] R13: dffffc0000000000 R14: ffffffffffffffff R15: ffffffffffffffff [ 65.994592] FS: 0000000001f12880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 66.010674] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.021639] CR2: 00007ffed573ed44 CR3: 00000001be42b000 CR4: 00000000001406e0 [ 66.030655] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program [ 66.042761] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.051807] Kernel panic - not syncing: Fatal exception [ 66.058292] Kernel Offset: disabled [ 66.061921] Rebooting in 86400 seconds..