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. [ 80.079027][ T26] kauditd_printk_skb: 5 callbacks suppressed [ 80.079039][ T26] audit: type=1800 audit(1560841447.162:33): pid=9188 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 [ 80.107321][ T26] audit: type=1800 audit(1560841447.162:34): pid=9188 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: [ 85.221903][ T26] audit: type=1400 audit(1560841452.312:35): avc: denied { map } for pid=9369 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 '10.128.0.177' (ECDSA) to the list of known hosts. executing program [ 91.655099][ T26] audit: type=1400 audit(1560841458.742:36): avc: denied { map } for pid=9381 comm="syz-executor365" path="/root/syz-executor365720072" 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 [ 91.689255][ T9382] IPVS: ftp: loaded support on port[0] = 21 [ 91.719854][ T9382] BUG: Dentry 000000004121f5cb{i=75d4,n=/} still in use (2) [unmount of hugetlbfs hugetlbfs] [ 91.731034][ T9382] WARNING: CPU: 0 PID: 9382 at fs/dcache.c:1529 umount_check.cold+0xe9/0x10a [ 91.739809][ T9382] Kernel panic - not syncing: panic_on_warn set ... [ 91.746426][ T9382] CPU: 0 PID: 9382 Comm: syz-executor365 Not tainted 5.2.0-rc5 #28 [ 91.754309][ T9382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.764683][ T9382] Call Trace: [ 91.768006][ T9382] dump_stack+0x172/0x1f0 [ 91.772339][ T9382] ? umount_check.cold+0xe6/0x10a [ 91.777368][ T9382] panic+0x2cb/0x744 [ 91.781261][ T9382] ? __warn_printk+0xf3/0xf3 [ 91.785864][ T9382] ? umount_check.cold+0xe9/0x10a [ 91.790983][ T9382] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.797258][ T9382] ? __warn.cold+0x5/0x4d [ 91.801584][ T9382] ? __warn+0xe8/0x1d0 [ 91.805713][ T9382] ? umount_check.cold+0xe9/0x10a [ 91.810738][ T9382] __warn.cold+0x20/0x4d [ 91.815189][ T9382] ? umount_check.cold+0xe9/0x10a [ 91.820389][ T9382] report_bug+0x263/0x2b0 [ 91.824714][ T9382] do_error_trap+0x11b/0x200 [ 91.829394][ T9382] do_invalid_op+0x37/0x50 [ 91.833832][ T9382] ? umount_check.cold+0xe9/0x10a [ 91.838867][ T9382] invalid_op+0x14/0x20 [ 91.843017][ T9382] RIP: 0010:umount_check.cold+0xe9/0x10a [ 91.848642][ T9382] Code: 89 ff e8 00 5c f0 ff 48 81 c3 68 06 00 00 45 89 e8 4c 89 e1 53 4d 8b 0f 4c 89 f2 4c 89 e6 48 c7 c7 00 00 76 87 e8 01 bd a1 ff <0f> 0b 58 e9 bd 2a ff ff e8 d0 5b f0 ff e9 29 ff ff ff 45 31 f6 e9 [ 91.868490][ T9382] RSP: 0018:ffff8880a078fbf8 EFLAGS: 00010286 [ 91.874547][ T9382] RAX: 000000000000005b RBX: ffff88808e79efa8 RCX: 0000000000000000 [ 91.882509][ T9382] RDX: 0000000000000000 RSI: ffffffff815ad956 RDI: ffffed10140f1f71 [ 91.890728][ T9382] RBP: ffff8880a078fc28 R08: 000000000000005b R09: ffff8880a7c7abc8 [ 91.898794][ T9382] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a6ada1e0 [ 91.906756][ T9382] R13: 0000000000000002 R14: 00000000000075d4 R15: ffffffff88cf2ac0 [ 91.914727][ T9382] ? vprintk_func+0x86/0x189 [ 91.919347][ T9382] ? umount_check.cold+0xe9/0x10a [ 91.924364][ T9382] d_walk+0x194/0x950 [ 91.928340][ T9382] ? select_collect+0x420/0x420 [ 91.933197][ T9382] do_one_tree+0x28/0x40 [ 91.937420][ T9382] shrink_dcache_for_umount+0x72/0x170 [ 91.942962][ T9382] generic_shutdown_super+0x6d/0x370 [ 91.948233][ T9382] kill_anon_super+0x3e/0x60 [ 91.952814][ T9382] kill_litter_super+0x50/0x60 [ 91.957600][ T9382] deactivate_locked_super+0x95/0x100 [ 91.962965][ T9382] deactivate_super+0x1b2/0x1d0 [ 91.967851][ T9382] ? mount_ns+0x1d0/0x1d0 [ 91.972177][ T9382] ? dput+0x38/0x690 [ 91.976081][ T9382] ? dput+0x1e6/0x690 [ 91.980047][ T9382] cleanup_mnt+0xbf/0x160 [ 91.984361][ T9382] __cleanup_mnt+0x16/0x20 [ 91.988758][ T9382] task_work_run+0x145/0x1c0 [ 91.993356][ T9382] exit_to_usermode_loop+0x273/0x2c0 [ 91.998632][ T9382] do_syscall_64+0x58e/0x680 [ 92.003216][ T9382] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 92.009089][ T9382] RIP: 0033:0x400e80 [ 92.012969][ T9382] Code: 01 f0 ff ff 0f 83 20 0c 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 4d 18 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 f4 0b 00 00 c3 48 83 ec 08 e8 5a 01 00 00 [ 92.032581][ T9382] RSP: 002b:00007ffd8549f898 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 92.041009][ T9382] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000400e80 [ 92.048971][ T9382] RDX: 00000000004409b9 RSI: 0000000000000000 RDI: 0000000000000004 [ 92.056926][ T9382] RBP: 00000000004a2190 R08: 0000000000000100 R09: 0000000000000100 [ 92.064879][ T9382] R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000401f00 [ 92.072837][ T9382] R13: 0000000000401f90 R14: 0000000000000000 R15: 0000000000000000 [ 92.082079][ T9382] Kernel Offset: disabled [ 92.086498][ T9382] Rebooting in 86400 seconds..