[ 42.169409] audit: type=1800 audit(1546336466.766:30): pid=8070 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=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 46.477507] kauditd_printk_skb: 4 callbacks suppressed [ 46.477520] audit: type=1400 audit(1546336471.106:35): avc: denied { map } for pid=8245 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 '10.128.0.30' (ECDSA) to the list of known hosts. executing program [ 65.106985] audit: type=1400 audit(1546336489.736:36): avc: denied { map } for pid=8257 comm="syz-executor264" path="/root/syz-executor264313090" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 65.140267] IPVS: ftp: loaded support on port[0] = 21 [ 65.178864] sp0: Synchronizing with TNC [ 65.185750] sp0: Found TNC executing program [ 65.336968] sp0: Synchronizing with TNC [ 65.342749] sp0: Found TNC executing program [ 65.438860] sp0: Synchronizing with TNC [ 65.459659] sp0: Found TNC executing program [ 65.610041] sp0: Synchronizing with TNC [ 65.629618] sp0: Found TNC executing program [ 65.897633] sp0: Synchronizing with TNC [ 65.907756] sp0: Found TNC executing program [ 66.230957] sp0: Synchronizing with TNC [ 66.242786] sp0: Found TNC executing program [ 66.493205] sp0: Synchronizing with TNC [ 66.516145] sp0: Found TNC executing program [ 66.761518] sp0: Synchronizing with TNC [ 66.772831] sp0: Found TNC executing program [ 66.986114] sp0: Synchronizing with TNC [ 67.010563] sp0: Found TNC executing program [ 67.282111] sp0: Synchronizing with TNC [ 67.289639] sp0: Found TNC executing program [ 67.565022] sp0: Synchronizing with TNC [ 67.576452] sp0: Found TNC executing program [ 67.857057] sp0: Synchronizing with TNC [ 67.865765] sp0: Found TNC executing program [ 68.097130] sp0: Synchronizing with TNC [ 68.107855] sp0: Found TNC executing program [ 68.359548] sp0: Synchronizing with TNC [ 68.368617] sp0: Found TNC executing program [ 68.650834] sp0: Synchronizing with TNC [ 68.655332] sp0: Found TNC executing program [ 68.892651] sp0: Synchronizing with TNC [ 68.901219] sp0: Found TNC executing program [ 69.141929] sp0: Synchronizing with TNC [ 69.153598] sp0: Found TNC executing program [ 69.414636] sp0: Synchronizing with TNC [ 69.426402] sp0: Found TNC executing program [ 69.691024] sp0: Synchronizing with TNC [ 69.710705] sp0: Found TNC executing program [ 69.955421] sp0: Synchronizing with TNC [ 69.970818] sp0: Found TNC executing program [ 70.123272] sp0: Synchronizing with TNC [ 70.150417] sp0: Found TNC executing program [ 70.347219] sp0: Synchronizing with TNC [ 70.361343] sp0: Found TNC executing program [ 70.512060] sp0: Synchronizing with TNC [ 70.526348] sp0: Found TNC executing program [ 70.812032] sp0: Synchronizing with TNC [ 70.840614] sp0: Found TNC executing program [ 70.996418] sp0: Synchronizing with TNC [ 71.029474] sp0: Found TNC executing program [ 71.277862] sp0: Synchronizing with TNC [ 71.311891] sp0: Found TNC executing program [ 71.518413] sp0: Synchronizing with TNC [ 71.540734] sp0: Found TNC executing program [ 71.832270] sp0: Synchronizing with TNC [ 71.856069] sp0: Found TNC executing program [ 72.135291] sp0: Synchronizing with TNC [ 72.145642] sp0: Found TNC executing program [ 72.417373] sp0: Synchronizing with TNC [ 72.422408] sp0: Found TNC executing program [ 72.628429] sp0: Synchronizing with TNC [ 72.645690] sp0: Found TNC executing program [ 72.931808] sp0: Synchronizing with TNC [ 72.942381] sp0: Found TNC executing program [ 73.185201] sp0: Synchronizing with TNC [ 73.195348] sp0: Found TNC executing program [ 73.453745] sp0: Synchronizing with TNC [ 73.465267] sp0: Found TNC executing program [ 73.647823] sp0: Synchronizing with TNC [ 73.661241] sp0: Found TNC executing program [ 73.777058] sp0: Synchronizing with TNC [ 73.792312] sp0: Found TNC executing program [ 74.118617] sp0: Synchronizing with TNC [ 74.134813] sp0: Found TNC executing program [ 74.411287] sp0: Synchronizing with TNC [ 74.439191] sp0: Found TNC executing program [ 74.689522] sp0: Synchronizing with TNC [ 74.719445] sp0: Found TNC executing program [ 74.958466] sp0: Synchronizing with TNC [ 74.971613] sp0: Found TNC executing program [ 75.223345] sp0: Synchronizing with TNC [ 75.228148] sp0: Found TNC executing program [ 75.443938] sp0: Synchronizing with TNC [ 75.453301] sp0: Found TNC executing program [ 75.731607] sp0: Synchronizing with TNC [ 75.741203] sp0: Found TNC executing program [ 75.990962] sp0: Synchronizing with TNC [ 76.000280] sp0: Found TNC executing program [ 76.216277] sp0: Synchronizing with TNC [ 76.229120] sp0: Found TNC executing program [ 76.433078] sp0: Synchronizing with TNC [ 76.444759] sp0: Found TNC executing program [ 76.687669] sp0: Synchronizing with TNC [ 76.699947] sp0: Found TNC [ 76.750219] ------------[ cut here ]------------ [ 76.754973] kernel BUG at kernel/time/timer.c:1136! [ 76.781050] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 76.786483] CPU: 1 PID: 1026 Comm: kworker/u4:4 Not tainted 4.20.0+ #2 [ 76.793167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.802568] Workqueue: events_unbound flush_to_ldisc [ 76.807685] RIP: 0010:add_timer+0xa81/0x1470 [ 76.812111] Code: 4d 89 7d 40 48 c7 85 70 fe ff ff 00 00 00 00 c7 85 7c fe ff ff ff ff ff ff 48 89 85 90 fe ff ff e9 e6 f7 ff ff e8 cf 42 12 00 <0f> 0b e8 c8 42 12 00 0f 0b e8 c1 42 12 00 4c 89 bd 60 fe ff ff e9 [ 76.831027] RSP: 0018:ffff8880a7fdf5a8 EFLAGS: 00010293 [ 76.836387] RAX: ffff8880a7846340 RBX: dffffc0000000000 RCX: 0000000000000000 [ 76.843670] RDX: 0000000000000000 RSI: ffffffff816f3ee1 RDI: ffff88808a514ff8 [ 76.850939] RBP: ffff8880a7fdf760 R08: 0000000000000007 R09: ffff8880a7846c58 [ 76.858200] R10: ffff8880a7846340 R11: 0000000000000000 R12: ffff88808a514ff8 [ 76.865464] R13: ffff88808a514ff8 R14: ffff88808a514dc0 R15: 0000000000000030 [ 76.872735] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 76.880971] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.886878] CR2: 000000000061c500 CR3: 00000000994d9000 CR4: 00000000001406e0 [ 76.894162] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.901421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.908670] Call Trace: [ 76.911247] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 76.915996] ? mod_timer+0x1430/0x1430 [ 76.919876] ? preempt_schedule+0x4b/0x60 [ 76.924014] ? ___preempt_schedule+0x16/0x18 [ 76.928413] ? _raw_spin_unlock_irqrestore+0xbd/0xe0 [ 76.933505] ? del_timer+0xfe/0x150 [ 76.937122] ? detach_if_pending+0x690/0x690 [ 76.941533] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 76.946634] ? pty_write+0x86/0x200 [ 76.950251] ? sixpack_receive_buf.cold+0x80/0xa5 [ 76.955088] sixpack_receive_buf+0xf9c/0x1470 [ 76.959582] ? sp_xmit+0xc20/0xc20 [ 76.963122] tty_ldisc_receive_buf+0x164/0x1c0 [ 76.967713] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.973242] tty_port_default_receive_buf+0x114/0x190 [ 76.978425] ? __kasan_slab_free+0x119/0x150 [ 76.982823] ? tty_port_lower_dtr_rts+0x90/0x90 [ 76.987483] flush_to_ldisc+0x3b2/0x590 [ 76.991455] ? tty_insert_flip_string_flags+0x1b0/0x1b0 [ 76.996810] ? __lock_is_held+0xb6/0x140 [ 77.000871] process_one_work+0xd0c/0x1ce0 [ 77.005092] ? __switch_to_asm+0x34/0x70 [ 77.009138] ? __switch_to_asm+0x40/0x70 [ 77.013226] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 77.017882] ? __schedule+0x89f/0x1e90 [ 77.021762] ? __schedule+0x89f/0x1e90 [ 77.025644] ? pci_mmcfg_check_reserved+0x170/0x170 [ 77.030654] ? pci_mmcfg_check_reserved+0x170/0x170 [ 77.035659] ? worker_thread+0x3b7/0x14a0 [ 77.039793] ? find_held_lock+0x35/0x120 [ 77.043876] ? lock_acquire+0x1db/0x570 [ 77.047841] ? worker_thread+0x3cd/0x14a0 [ 77.051979] ? kasan_check_read+0x11/0x20 [ 77.056144] ? do_raw_spin_lock+0x156/0x360 [ 77.060471] ? lock_release+0xc40/0xc40 [ 77.064433] ? rwlock_bug.part.0+0x90/0x90 [ 77.068652] ? trace_hardirqs_on_caller+0x310/0x310 [ 77.073664] worker_thread+0x143/0x14a0 [ 77.077651] ? process_one_work+0x1ce0/0x1ce0 [ 77.082156] ? __kthread_parkme+0xc3/0x1b0 [ 77.086384] ? lock_acquire+0x1db/0x570 [ 77.090351] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 77.095440] ? lockdep_hardirqs_on+0x415/0x5d0 [ 77.100009] ? trace_hardirqs_on+0xbd/0x310 [ 77.104320] ? __kthread_parkme+0xc3/0x1b0 [ 77.108548] ? trace_hardirqs_off_caller+0x300/0x300 [ 77.113639] ? do_raw_spin_trylock+0x270/0x270 [ 77.118229] ? schedule+0x108/0x350 [ 77.121847] ? do_raw_spin_trylock+0x270/0x270 [ 77.126420] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 77.131533] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 77.137124] ? __kthread_parkme+0xfb/0x1b0 [ 77.141352] kthread+0x357/0x430 [ 77.144708] ? process_one_work+0x1ce0/0x1ce0 [ 77.149194] ? kthread_stop+0x920/0x920 [ 77.153152] ret_from_fork+0x3a/0x50 [ 77.156854] Modules linked in: [ 77.177787] ---[ end trace e81d5768fb82afce ]--- [ 77.183524] RIP: 0010:add_timer+0xa81/0x1470 [ 77.187996] Code: 4d 89 7d 40 48 c7 85 70 fe ff ff 00 00 00 00 c7 85 7c fe ff ff ff ff ff ff 48 89 85 90 fe ff ff e9 e6 f7 ff ff e8 cf 42 12 00 <0f> 0b e8 c8 42 12 00 0f 0b e8 c1 42 12 00 4c 89 bd 60 fe ff ff e9 [ 77.211545] RSP: 0018:ffff8880a7fdf5a8 EFLAGS: 00010293 [ 77.216958] RAX: ffff8880a7846340 RBX: dffffc0000000000 RCX: 0000000000000000 [ 77.224467] RDX: 0000000000000000 RSI: ffffffff816f3ee1 RDI: ffff88808a514ff8 [ 77.232030] RBP: ffff8880a7fdf760 R08: 0000000000000007 R09: ffff8880a7846c58 [ 77.239616] R10: ffff8880a7846340 R11: 0000000000000000 R12: ffff88808a514ff8 [ 77.247192] R13: ffff88808a514ff8 R14: ffff88808a514dc0 R15: 0000000000000030 [ 77.254503] FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 77.262915] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.268789] CR2: ffffffffff600400 CR3: 00000000897a9000 CR4: 00000000001406f0 [ 77.276093] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.283375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.290667] Kernel panic - not syncing: Fatal exception [ 77.296939] Kernel Offset: disabled [ 77.300564] Rebooting in 86400 seconds..