Starting Permit User Sessions... Starting OpenBSD Secure Shell server... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts. executing program [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (9s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ 21.315281][ T22] audit: type=1400 audit(1613170028.522:8): avc: denied { execmem } for pid=349 comm="syz-executor925" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 21.350326][ T350] incfs: Can't find or create .incomplete dir in ./file0 [ 21.358216][ T350] BUG: Dentry 0000000087168b1a{i=0,n=.incomplete} still in use (1) [unmount of vfat loop0] [ 21.369110][ T350] ------------[ cut here ]------------ [ 21.374824][ T350] WARNING: CPU: 0 PID: 350 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 21.383135][ T350] Kernel panic - not syncing: panic_on_warn set ... [ 21.389738][ T350] CPU: 0 PID: 350 Comm: syz-executor925 Not tainted 5.4.97-syzkaller-00250-g57b3f4830fb6 #0 [ 21.400853][ T350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.412777][ T350] Call Trace: [ 21.416059][ T350] dump_stack+0x1d8/0x24e [ 21.420839][ T350] ? devkmsg_release+0x11c/0x11c [ 21.425779][ T350] ? show_regs_print_info+0x12/0x12 [ 21.431164][ T350] ? vprintk_store+0x680/0x680 [ 21.435902][ T350] ? console_trylock+0x166/0x1c0 [ 21.440972][ T350] ? umount_check+0x100/0x1c0 [ 21.445631][ T350] ? umount_check+0x100/0x1c0 [ 21.450323][ T350] panic+0x285/0x740 [ 21.454226][ T350] ? __warn+0xfa/0x200 [ 21.458266][ T350] ? nmi_panic+0x90/0x90 [ 21.462532][ T350] ? devkmsg_release+0x11c/0x11c [ 21.467459][ T350] ? is_valid_bugaddr+0xa0/0x150 [ 21.472552][ T350] ? umount_check+0x179/0x1c0 [ 21.477205][ T350] __warn+0x1f1/0x200 [ 21.481172][ T350] ? umount_check+0x179/0x1c0 [ 21.486245][ T350] report_bug+0x380/0x4d0 [ 21.490611][ T350] ? umount_check+0x179/0x1c0 [ 21.495263][ T350] do_invalid_op+0x6e/0x110 [ 21.499740][ T350] invalid_op+0x1e/0x30 [ 21.503867][ T350] RIP: 0010:umount_check+0x179/0x1c0 [ 21.509119][ T350] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 00 c9 e8 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 67 41 b0 ff 48 83 c4 08 <0f> 0b e9 fd fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d4 fe ff [ 21.528785][ T350] RSP: 0018:ffff8881e9737a58 EFLAGS: 00010282 [ 21.534831][ T350] RAX: 0000000000000059 RBX: ffffffff85fc4c40 RCX: 0dc0c534a40f0d00 [ 21.542784][ T350] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 21.550729][ T350] RBP: ffff8881e9495420 R08: ffffffff814e6147 R09: ffffed103edc5e08 [ 21.559035][ T350] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 21.568758][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881efa15dd0 [ 21.576717][ T350] ? vprintk_emit+0x457/0x4c0 [ 21.582052][ T350] d_walk+0x2d9/0x540 [ 21.586037][ T350] ? __d_free+0x20/0x20 [ 21.590170][ T350] shrink_dcache_for_umount+0x8a/0x1a0 [ 21.595603][ T350] generic_shutdown_super+0x63/0x2a0 [ 21.601263][ T350] kill_block_super+0x79/0xd0 [ 21.606144][ T350] deactivate_locked_super+0xaf/0x100 [ 21.612013][ T350] deactivate_super+0x1b3/0x270 [ 21.616856][ T350] ? deactivate_locked_super+0x100/0x100 [ 21.622490][ T350] ? dput+0x4de/0x5d0 [ 21.626478][ T350] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 21.631741][ T350] ? find_next_bit+0xc6/0x110 [ 21.636556][ T350] cleanup_mnt+0x432/0x4e0 [ 21.641516][ T350] task_work_run+0x186/0x1b0 [ 21.646459][ T350] do_exit+0xcb9/0x2bf0 [ 21.650710][ T350] ? mm_update_next_owner+0x5c0/0x5c0 [ 21.656096][ T350] ? __up_read+0x6f/0x1b0 [ 21.663979][ T350] ? __down_read+0x210/0x210 [ 21.680150][ T350] ? check_preemption_disabled+0x154/0x330 [ 21.686138][ T350] ? debug_smp_processor_id+0x20/0x20 [ 21.691485][ T350] do_group_exit+0x15c/0x2c0 [ 21.696087][ T350] ? do_user_addr_fault+0x6b0/0xb40 [ 21.702753][ T350] __do_sys_exit_group+0x13/0x20 [ 21.707799][ T350] __se_sys_exit_group+0x10/0x10 [ 21.713538][ T350] __x64_sys_exit_group+0x37/0x40 [ 21.718555][ T350] do_syscall_64+0xcb/0x150 [ 21.723030][ T350] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.728912][ T350] RIP: 0033:0x442e09 [ 21.732787][ T350] Code: Bad RIP value. [ 21.736841][ T350] RSP: 002b:00007ffff7d66cd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.745219][ T350] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e09 [ 21.753182][ T350] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 21.761145][ T350] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 21.770107][ T350] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 21.778058][ T350] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 21.786692][ T350] Kernel Offset: disabled [ 21.791016][ T350] Rebooting in 86400 seconds..