[ 43.848297] audit: type=1800 audit(1561666797.468:30): pid=7781 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 48.958116] kauditd_printk_skb: 4 callbacks suppressed [ 48.958132] audit: type=1400 audit(1561666802.598:35): avc: denied { map } for pid=7955 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 '10.128.1.18' (ECDSA) to the list of known hosts. executing program [ 55.760958] audit: type=1400 audit(1561666809.398:36): avc: denied { map } for pid=7967 comm="syz-executor194" path="/root/syz-executor194937921" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 55.802543] FAULT_INJECTION: forcing a failure. [ 55.802543] name failslab, interval 1, probability 0, space 0, times 1 [ 55.813991] CPU: 1 PID: 7967 Comm: syz-executor194 Not tainted 4.19.56 #28 [ 55.821115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.830478] Call Trace: [ 55.833090] dump_stack+0x172/0x1f0 [ 55.836744] should_fail.cold+0xa/0x1b [ 55.840757] ? fault_create_debugfs_attr+0x1e0/0x1e0 [ 55.845979] ? lock_downgrade+0x810/0x810 [ 55.851870] ? ___might_sleep+0x163/0x280 [ 55.856045] __should_failslab+0x121/0x190 [ 55.860302] should_failslab+0x9/0x14 [ 55.864108] __kmalloc+0x2e2/0x750 [ 55.867662] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.873230] ? __sk_mem_schedule+0xac/0xe0 [ 55.877486] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.883047] ? tls_push_record+0x107/0x13a0 [ 55.887377] tls_push_record+0x107/0x13a0 [ 55.891557] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.897092] ? alloc_encrypted_sg+0xa8/0x110 [ 55.901495] tls_sw_sendpage+0x540/0xd40 [ 55.905558] ? tls_sw_sendmsg+0x1220/0x1220 [ 55.909885] ? pipe_lock+0x6e/0x80 [ 55.913441] ? tls_sw_sendmsg+0x1220/0x1220 [ 55.917768] inet_sendpage+0x168/0x630 [ 55.921692] kernel_sendpage+0x92/0xf0 [ 55.925605] ? inet_sendmsg+0x5d0/0x5d0 [ 55.929591] sock_sendpage+0x8b/0xc0 [ 55.933312] pipe_to_sendpage+0x296/0x360 [ 55.937469] ? kernel_sendpage+0xf0/0xf0 [ 55.950042] ? direct_splice_actor+0x190/0x190 [ 55.954854] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.960409] ? splice_from_pipe_next.part.0+0x255/0x2f0 [ 55.965784] __splice_from_pipe+0x391/0x7d0 [ 55.970133] ? direct_splice_actor+0x190/0x190 [ 55.974729] ? direct_splice_actor+0x190/0x190 [ 55.979318] splice_from_pipe+0x108/0x170 [ 55.983470] ? splice_shrink_spd+0xd0/0xd0 [ 55.987713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.993266] ? security_file_permission+0x89/0x230 [ 55.998198] generic_splice_sendpage+0x3c/0x50 [ 56.002902] ? splice_from_pipe+0x170/0x170 [ 56.007220] do_splice+0x642/0x12c0 [ 56.010837] ? __sb_end_write+0xd9/0x110 [ 56.014890] ? vfs_write+0x160/0x560 [ 56.018620] ? opipe_prep.part.0+0x2d0/0x2d0 [ 56.023027] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.028584] ? __fget_light+0x1a9/0x230 [ 56.032558] __x64_sys_splice+0x2c6/0x330 [ 56.036705] do_syscall_64+0xfd/0x620 [ 56.040502] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.045684] RIP: 0033:0x4406a9 [ 56.048867] 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.067866] RSP: 002b:00007ffd1d5f09f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 56.075570] RAX: ffffffffffffffda RBX: 00007ffd1d5f0a10 RCX: 00000000004406a9 [ 56.082829] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 [ 56.090085] RBP: 0000000000000005 R08: 0000000100000300 R09: 0000000000000000 [ 56.097352] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f90 [ 56.104610] R13: 0000000000402020 R14: 0000000000000000 R15: 0000000000000000 [ 56.275460] kasan: CONFIG_KASAN_INLINE enabled [ 56.280213] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 56.287728] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 56.294043] CPU: 1 PID: 7967 Comm: syz-executor194 Not tainted 4.19.56 #28 [ 56.301045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.310432] RIP: 0010:gcmaes_crypt_by_sg.constprop.0+0xde2/0x1850 [ 56.316678] Code: 82 f3 f9 ff ff e8 6e ac 35 00 4c 89 f7 e8 c6 c7 eb 01 48 8d 78 08 49 89 c6 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a5 09 00 00 41 8b 46 08 89 84 [ 56.335575] RSP: 0018:ffff8880807df230 EFLAGS: 00010202 [ 56.340934] RAX: dffffc0000000000 RBX: 0000000000000034 RCX: ffffffff83213249 [ 56.348202] RDX: 0000000000000001 RSI: ffffffff8321329b RDI: 0000000000000008 [ 56.355483] RBP: ffff8880807df570 R08: ffff88809ee0e340 R09: 000000000000000d [ 56.362748] R10: ffff888099456020 R11: 0000000000000010 R12: 0000000000000000 [ 56.370092] R13: 0000000000000034 R14: 0000000000000000 R15: 0000000000000007 [ 56.377366] FS: 0000000001deb880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 56.385600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.391478] CR2: 00005641ad1e7ae8 CR3: 0000000090e31000 CR4: 00000000001406e0 [ 56.399181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.406438] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.413740] Call Trace: [ 56.416330] ? aesni_gcm_enc_avx2+0x170/0x170 [ 56.420817] ? mark_held_locks+0x100/0x100 [ 56.425039] ? is_bpf_text_address+0xac/0x170 [ 56.429546] ? lockdep_hardirqs_on+0x415/0x5d0 [ 56.434114] ? trace_hardirqs_on+0x67/0x220 [ 56.438423] ? kasan_check_read+0x11/0x20 [ 56.442559] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 56.447648] ? depot_save_stack+0x1de/0x460 [ 56.451985] gcmaes_encrypt.constprop.0+0x62a/0xd90 [ 56.456994] ? save_stack+0x45/0xd0 [ 56.460693] ? kasan_kmalloc+0xce/0xf0 [ 56.464563] ? __kmalloc+0x15d/0x750 [ 56.468266] ? tls_push_record+0x107/0x13a0 [ 56.472586] ? tls_sw_sendpage+0x540/0xd40 [ 56.476834] ? inet_sendpage+0x168/0x630 [ 56.480880] ? kernel_sendpage+0x92/0xf0 [ 56.484928] ? generic_gcmaes_decrypt+0x160/0x160 [ 56.489776] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.495130] ? mark_held_locks+0x100/0x100 [ 56.499359] ? remove_wait_queue+0x10f/0x190 [ 56.503755] ? find_held_lock+0x35/0x130 [ 56.507806] ? fs_reclaim_acquire+0x20/0x20 [ 56.512132] ? __lock_is_held+0xb6/0x140 [ 56.516179] ? should_fail+0x14d/0x85c [ 56.520056] generic_gcmaes_encrypt+0x108/0x159 [ 56.524711] ? generic_gcmaes_encrypt+0x108/0x159 [ 56.529542] ? helper_rfc4106_encrypt+0x390/0x390 [ 56.534373] ? __kmalloc+0x5e1/0x750 [ 56.538078] gcmaes_wrapper_encrypt+0x15f/0x200 [ 56.542736] tls_push_record+0x9c0/0x13a0 [ 56.546881] tls_sw_sendpage+0x540/0xd40 [ 56.550934] ? tls_sw_sendmsg+0x1220/0x1220 [ 56.555258] ? pipe_lock+0x6e/0x80 [ 56.558787] ? tls_sw_sendmsg+0x1220/0x1220 [ 56.563125] inet_sendpage+0x168/0x630 [ 56.567104] kernel_sendpage+0x92/0xf0 [ 56.571015] ? inet_sendmsg+0x5d0/0x5d0 [ 56.575017] sock_sendpage+0x8b/0xc0 [ 56.578762] pipe_to_sendpage+0x296/0x360 [ 56.586393] ? kernel_sendpage+0xf0/0xf0 [ 56.590451] ? direct_splice_actor+0x190/0x190 [ 56.595032] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.600575] ? splice_from_pipe_next.part.0+0x255/0x2f0 [ 56.605931] __splice_from_pipe+0x391/0x7d0 [ 56.610242] ? direct_splice_actor+0x190/0x190 [ 56.614816] ? direct_splice_actor+0x190/0x190 [ 56.619381] splice_from_pipe+0x108/0x170 [ 56.623533] ? splice_shrink_spd+0xd0/0xd0 [ 56.627772] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.633313] ? security_file_permission+0x89/0x230 [ 56.638243] generic_splice_sendpage+0x3c/0x50 [ 56.642846] ? splice_from_pipe+0x170/0x170 [ 56.647156] do_splice+0x642/0x12c0 [ 56.650773] ? __sb_end_write+0xd9/0x110 [ 56.654817] ? vfs_write+0x160/0x560 [ 56.658542] ? opipe_prep.part.0+0x2d0/0x2d0 [ 56.662943] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.668474] ? __fget_light+0x1a9/0x230 [ 56.672480] __x64_sys_splice+0x2c6/0x330 [ 56.676652] do_syscall_64+0xfd/0x620 [ 56.680456] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.685637] RIP: 0033:0x4406a9 [ 56.688817] 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.707712] RSP: 002b:00007ffd1d5f09f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 56.715441] RAX: ffffffffffffffda RBX: 00007ffd1d5f0a10 RCX: 00000000004406a9 [ 56.722706] RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 [ 56.729983] RBP: 0000000000000005 R08: 0000000100000300 R09: 0000000000000000 [ 56.737238] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f90 [ 56.744491] R13: 0000000000402020 R14: 0000000000000000 R15: 0000000000000000 [ 56.751746] Modules linked in: [ 56.755042] ---[ end trace 669fcdfe1266f826 ]--- [ 56.759851] RIP: 0010:gcmaes_crypt_by_sg.constprop.0+0xde2/0x1850 [ 56.766122] Code: 82 f3 f9 ff ff e8 6e ac 35 00 4c 89 f7 e8 c6 c7 eb 01 48 8d 78 08 49 89 c6 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a5 09 00 00 41 8b 46 08 89 84 [ 56.785085] RSP: 0018:ffff8880807df230 EFLAGS: 00010202 [ 56.790506] RAX: dffffc0000000000 RBX: 0000000000000034 RCX: ffffffff83213249 [ 56.797796] RDX: 0000000000000001 RSI: ffffffff8321329b RDI: 0000000000000008 [ 56.805072] RBP: ffff8880807df570 R08: ffff88809ee0e340 R09: 000000000000000d [ 56.812437] R10: ffff888099456020 R11: 0000000000000010 R12: 0000000000000000 [ 56.819737] R13: 0000000000000034 R14: 0000000000000000 R15: 0000000000000007 [ 56.827054] FS: 0000000001deb880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 56.835312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.841182] CR2: 00005641ad1e7ae8 CR3: 0000000090e31000 CR4: 00000000001406e0 [ 56.848515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.855816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.863079] Kernel panic - not syncing: Fatal exception [ 56.869431] Kernel Offset: disabled [ 56.873064] Rebooting in 86400 seconds..