[ 32.175508] audit: type=1800 audit(1546311852.513:27): pid=7366 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 32.206813] audit: type=1800 audit(1546311852.513:28): pid=7366 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. [ 32.912228] audit: type=1800 audit(1546311853.303:29): pid=7366 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 [ 32.931831] audit: type=1800 audit(1546311853.313:30): pid=7366 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 '10.128.0.107' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.579040] kasan: CONFIG_KASAN_INLINE enabled [ 42.583746] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.591177] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 42.597389] CPU: 0 PID: 7523 Comm: syz-executor732 Not tainted 4.20.0+ #2 [ 42.604376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.613728] RIP: 0010:keyctl_pkey_params_get+0x284/0x550 [ 42.619156] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31 [ 42.638030] RSP: 0018:ffff88808ed7fba0 EFLAGS: 00010246 [ 42.643368] RAX: 088a9f133ab43f40 RBX: ffff88808ed7fd58 RCX: ffffffff83434b9d [ 42.650612] RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001 [ 42.657882] RBP: ffff88808ed7fce8 R08: ffff88809193a140 R09: ffffed1012537ba9 [ 42.665142] R10: ffffed1012537ba8 R11: 0000000000000005 R12: 0000000000000000 [ 42.672406] R13: dffffc0000000000 R14: 4454f899d5a1fa00 R15: 0000000000000000 [ 42.679673] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7fc4b40 [ 42.687879] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 42.693739] CR2: 0000000020000300 CR3: 000000008f721000 CR4: 00000000001406f0 [ 42.700987] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.708248] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.715658] Call Trace: [ 42.718226] ? __keyctl_dh_compute.cold+0x63/0x63 [ 42.723041] ? keyctl_pkey_query+0x1f0/0x2a0 [ 42.727543] ? trace_hardirqs_off_caller+0x300/0x300 [ 42.732621] ? __kasan_slab_free+0x119/0x150 [ 42.737042] keyctl_pkey_query+0xb8/0x2a0 [ 42.741170] ? keyctl_pkey_params_get_2+0x570/0x570 [ 42.746166] ? do_fast_syscall_32+0x13b/0xf98 [ 42.750641] ? do_fast_syscall_32+0x13b/0xf98 [ 42.755113] ? trace_hardirqs_on+0xbd/0x310 [ 42.759408] ? __x32_compat_sys_get_robust_list+0x3f0/0x3f0 [ 42.765091] ? entry_SYSENTER_compat+0x70/0x7f [ 42.769652] ? trace_hardirqs_off_caller+0x300/0x300 [ 42.774731] __ia32_compat_sys_keyctl+0x152/0x420 [ 42.779549] do_fast_syscall_32+0x333/0xf98 [ 42.783846] ? do_int80_syscall_32+0x880/0x880 [ 42.788399] ? trace_hardirqs_off+0x310/0x310 [ 42.792871] ? syscall_return_slowpath+0x3b0/0x5f0 [ 42.797779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 42.803291] ? prepare_exit_to_usermode+0x232/0x3b0 [ 42.808281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.813098] entry_SYSENTER_compat+0x70/0x7f [ 42.817480] RIP: 0023:0xf7fc8869 [ 42.820820] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 42.839808] RSP: 002b:00000000f7fc41ec EFLAGS: 00000296 ORIG_RAX: 0000000000000120 [ 42.847493] RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 0000000000000000 [ 42.854753] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000000 [ 42.861993] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 42.869235] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 42.876479] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.883726] Modules linked in: [ 42.887271] ---[ end trace 9df8b8b3bca83c70 ]--- [ 42.892036] RIP: 0010:keyctl_pkey_params_get+0x284/0x550 [ 42.897699] Code: fe 48 8b 44 24 38 48 c1 e8 03 42 80 3c 28 00 0f 85 41 02 00 00 4c 8b b4 24 b0 00 00 00 4c 89 f0 4c 89 f2 48 c1 e8 03 83 e2 07 <42> 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 2a 02 00 00 41 0f b6 36 31 [ 42.916610] RSP: 0018:ffff88808ed7fba0 EFLAGS: 00010246 [ 42.921967] RAX: 088a9f133ab43f40 RBX: ffff88808ed7fd58 RCX: ffffffff83434b9d [ 42.929234] RDX: 0000000000000000 RSI: ffffffff83434bab RDI: 0000000000000001 [ 42.936786] RBP: ffff88808ed7fce8 R08: ffff88809193a140 R09: ffffed1012537ba9 [ 42.944051] R10: ffffed1012537ba8 R11: 0000000000000005 R12: 0000000000000000 [ 42.951301] R13: dffffc0000000000 R14: 4454f899d5a1fa00 R15: 0000000000000000 [ 42.958578] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7fc4b40 [ 42.966802] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 42.972681] CR2: 0000000020000300 CR3: 000000008f721000 CR4: 00000000001406f0 [ 42.979953] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.987234] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.994521] Kernel panic - not syncing: Fatal exception [ 43.001002] Kernel Offset: disabled [ 43.004630] Rebooting in 86400 seconds..