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. [ 76.308203][ T26] kauditd_printk_skb: 6 callbacks suppressed [ 76.308215][ T26] audit: type=1800 audit(1560234367.784:33): pid=9333 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 [ 76.336761][ T26] audit: type=1800 audit(1560234367.794:34): pid=9333 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 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 78.815896][ T26] audit: type=1400 audit(1560234370.294:35): avc: denied { map } for pid=9511 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 '10.128.0.87' (ECDSA) to the list of known hosts. [ 103.636183][ T26] audit: type=1400 audit(1560234395.114:36): avc: denied { map } for pid=9523 comm="syz-executor466" path="/root/syz-executor466189028" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 103.697104][ T9534] IPVS: ftp: loaded support on port[0] = 21 [ 103.699422][ T9533] IPVS: ftp: loaded support on port[0] = 21 [ 103.704447][ T9535] IPVS: ftp: loaded support on port[0] = 21 [ 103.718763][ T9532] IPVS: ftp: loaded support on port[0] = 21 [ 103.727249][ T9531] IPVS: ftp: loaded support on port[0] = 21 [ 103.736157][ T9530] IPVS: ftp: loaded support on port[0] = 21 [ 103.831525][ T26] audit: type=1400 audit(1560234395.304:37): avc: denied { associate } for pid=9534 comm="syz-executor466" name="syz2" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 103.908038][ T26] audit: type=1400 audit(1560234395.384:38): avc: denied { map } for pid=9536 comm="syz-executor466" path="/dev/nullb0" dev="devtmpfs" ino=17482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=blk_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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 116.613181][T12452] ------------[ cut here ]------------ [ 116.631275][T12452] generic_make_request: Trying to write to read-only block-device nullb0 (partno 0) [ 116.644251][T12452] WARNING: CPU: 0 PID: 12452 at block/blk-core.c:758 generic_make_request_checks+0x1c0c/0x2070 [ 116.654755][T12452] Kernel panic - not syncing: panic_on_warn set ... executing program [ 116.661374][T12452] CPU: 0 PID: 12452 Comm: syz-executor466 Not tainted 5.2.0-rc4+ #19 [ 116.669547][T12452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 116.679607][T12452] Call Trace: [ 116.682991][T12452] dump_stack+0x172/0x1f0 [ 116.687471][T12452] ? generic_make_request_checks+0x1b90/0x2070 [ 116.693634][T12452] panic+0x2cb/0x744 [ 116.697567][T12452] ? __warn_printk+0xf3/0xf3 [ 116.702254][T12452] ? generic_make_request_checks+0x1c0c/0x2070 [ 116.708406][T12452] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 116.714665][T12452] ? __warn.cold+0x5/0x4d [ 116.719009][T12452] ? __warn+0xe8/0x1d0 [ 116.723071][T12452] ? generic_make_request_checks+0x1c0c/0x2070 [ 116.729228][T12452] __warn.cold+0x20/0x4d [ 116.733482][T12452] ? vprintk_emit+0x1ea/0x700 [ 116.738157][T12452] ? generic_make_request_checks+0x1c0c/0x2070 [ 116.744315][T12452] report_bug+0x263/0x2b0 [ 116.748635][T12452] do_error_trap+0x11b/0x200 [ 116.753226][T12452] do_invalid_op+0x37/0x50 [ 116.757660][T12452] ? generic_make_request_checks+0x1c0c/0x2070 [ 116.763816][T12452] invalid_op+0x14/0x20 [ 116.767955][T12452] RIP: 0010:generic_make_request_checks+0x1c0c/0x2070 [ 116.774699][T12452] Code: 00 00 44 8b ab b4 04 00 00 48 8d b5 78 ff ff ff 4c 89 ff e8 f6 76 05 00 48 c7 c7 a0 1b a3 87 48 89 c6 44 89 ea e8 92 71 21 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 [ 116.794548][T12452] RSP: 0018:ffff88809167ef80 EFLAGS: 00010286 [ 116.800607][T12452] RAX: 0000000000000000 RBX: ffff8880a3098b80 RCX: 0000000000000000 [ 116.808595][T12452] RDX: 0000000000000000 RSI: ffffffff815ac976 RDI: ffffed10122cfde2 [ 116.816557][T12452] RBP: ffff88809167f080 R08: ffff888087894400 R09: ffffed1015d06011 [ 116.824583][T12452] R10: ffffed1015d06010 R11: ffff8880ae830087 R12: ffff88809de61b08 [ 116.832571][T12452] R13: 0000000000000000 R14: 0000000000000001 R15: ffff88809de61b00 [ 116.840579][T12452] ? vprintk_func+0x86/0x189 [ 116.845203][T12452] ? trace_event_raw_event_block_rq_requeue+0x640/0x640 [ 116.852153][T12452] ? mark_held_locks+0xf0/0xf0 [ 116.856939][T12452] generic_make_request+0x8f/0xb40 [ 116.862080][T12452] ? find_held_lock+0x35/0x130 [ 116.866905][T12452] ? bio_associate_blkg_from_css+0x4e5/0x990 [ 116.872885][T12452] ? blk_queue_enter+0xe90/0xe90 [ 116.877829][T12452] ? lock_downgrade+0x880/0x880 [ 116.882687][T12452] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 116.889043][T12452] submit_bio+0xba/0x480 [ 116.893278][T12452] ? submit_bio+0xba/0x480 [ 116.897681][T12452] ? generic_make_request+0xb40/0xb40 [ 116.903052][T12452] ? bio_reset+0x3b0/0x3b0 [ 116.907491][T12452] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 116.913220][T12452] ? guard_bio_eod+0x295/0x6c0 [ 116.917987][T12452] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 116.925462][T12452] ? wbc_account_io+0x17e/0x2a0 [ 116.930323][T12452] submit_bh_wbc+0x5f7/0x7f0 [ 116.934918][T12452] __block_write_full_page+0x76e/0x1020 [ 116.940460][T12452] ? check_disk_change+0x140/0x140 [ 116.945756][T12452] block_write_full_page+0x21f/0x270 [ 116.951050][T12452] ? check_disk_change+0x140/0x140 [ 116.956164][T12452] blkdev_writepage+0x25/0x30 [ 116.960823][T12452] __writepage+0x62/0xe0 [ 116.965051][T12452] write_cache_pages+0x7bf/0x1380 [ 116.970144][T12452] ? __wb_update_bandwidth+0x670/0x670 [ 116.975619][T12452] ? clear_page_dirty_for_io+0xdc0/0xdc0 [ 116.981242][T12452] ? __lock_acquire+0x54f/0x5490 [ 116.986178][T12452] ? mark_held_locks+0xf0/0xf0 [ 116.990955][T12452] ? is_bpf_text_address+0xac/0x170 [ 116.996183][T12452] ? __lock_acquire+0x54f/0x5490 [ 117.001130][T12452] generic_writepages+0xed/0x160 [ 117.006840][T12452] ? write_cache_pages+0x1380/0x1380 [ 117.012168][T12452] ? wbc_attach_and_unlock_inode+0x51a/0x930 [ 117.018160][T12452] ? find_held_lock+0x35/0x130 [ 117.022921][T12452] ? blkdev_readpages+0x40/0x40 [ 117.027764][T12452] blkdev_writepages+0x1e/0x30 [ 117.032532][T12452] do_writepages+0xfa/0x2a0 [ 117.037051][T12452] ? page_writeback_cpu_online+0x20/0x20 [ 117.042693][T12452] ? kasan_check_read+0x11/0x20 [ 117.047559][T12452] ? do_raw_spin_unlock+0x57/0x270 [ 117.052680][T12452] ? _raw_spin_unlock+0x2d/0x50 [ 117.057523][T12452] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 117.064168][T12452] ? wbc_attach_and_unlock_inode+0x5c4/0x930 [ 117.070149][T12452] __filemap_fdatawrite_range+0x26d/0x340 [ 117.075878][T12452] ? delete_from_page_cache_batch+0xf90/0xf90 [ 117.082138][T12452] filemap_write_and_wait+0x47/0xd0 [ 117.087350][T12452] __blkdev_put+0x204/0x810 [ 117.091851][T12452] ? bd_set_size+0xb0/0xb0 [ 117.096256][T12452] ? wait_for_completion+0x440/0x440 [ 117.101534][T12452] blkdev_put+0x98/0x560 [ 117.105793][T12452] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 117.112033][T12452] blkdev_close+0x8b/0xb0 [ 117.116356][T12452] __fput+0x2ff/0x890 [ 117.120349][T12452] ? blkdev_put+0x560/0x560 [ 117.124851][T12452] ____fput+0x16/0x20 [ 117.128819][T12452] task_work_run+0x145/0x1c0 [ 117.133415][T12452] do_exit+0x90a/0x2fa0 [ 117.137561][T12452] ? get_signal+0x387/0x24b0 [ 117.142200][T12452] ? mm_update_next_owner+0x640/0x640 [ 117.147561][T12452] ? kasan_check_write+0x14/0x20 [ 117.152489][T12452] ? _raw_spin_unlock_irq+0x28/0x90 [ 117.157710][T12452] ? get_signal+0x387/0x24b0 [ 117.162342][T12452] ? _raw_spin_unlock_irq+0x28/0x90 [ 117.167536][T12452] do_group_exit+0x135/0x370 [ 117.172121][T12452] get_signal+0x471/0x24b0 [ 117.176536][T12452] ? exit_robust_list+0x2c0/0x2c0 [ 117.181573][T12452] ? kasan_check_write+0x14/0x20 [ 117.186521][T12452] ? vm_mmap_pgoff+0x107/0x230 [ 117.191326][T12452] do_signal+0x87/0x1900 [ 117.195566][T12452] ? vma_is_stack_for_current+0xd0/0xd0 [ 117.201162][T12452] ? ksys_dup3+0x3e0/0x3e0 [ 117.205597][T12452] ? kmem_cache_free+0x222/0x260 [ 117.210555][T12452] ? setup_sigcontext+0x7d0/0x7d0 [ 117.215612][T12452] ? fput_many+0x12c/0x1a0 [ 117.220036][T12452] ? exit_to_usermode_loop+0x43/0x2c0 [ 117.225399][T12452] ? do_syscall_64+0x58e/0x680 [ 117.230152][T12452] ? exit_to_usermode_loop+0x43/0x2c0 [ 117.235518][T12452] ? lockdep_hardirqs_on+0x418/0x5d0 [ 117.240826][T12452] ? trace_hardirqs_on+0x67/0x220 [ 117.245868][T12452] exit_to_usermode_loop+0x244/0x2c0 [ 117.251162][T12452] do_syscall_64+0x58e/0x680 [ 117.255775][T12452] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 117.261663][T12452] RIP: 0033:0x4472a9 [ 117.265540][T12452] Code: e8 3c e6 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 ab 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 117.285138][T12452] RSP: 002b:00007f47db2dbdb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 117.293562][T12452] RAX: fffffffffffffe00 RBX: 00000000006dcc38 RCX: 00000000004472a9 [ 117.301524][T12452] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dcc38 [ 117.309489][T12452] RBP: 00000000006dcc30 R08: 0000000000000000 R09: 0000000000000000 [ 117.317482][T12452] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc3c [ 117.325456][T12452] R13: 00007ffd0368493f R14: 00007f47db2dc9c0 R15: 20c49ba5e353f7cf [ 117.334919][T12452] Kernel Offset: disabled [ 117.339321][T12452] Rebooting in 86400 seconds..