Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty2. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.254' (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 (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)[ 19.912191][ T22] audit: type=1400 audit(1631742236.353:8): avc: denied { execmem } for pid=338 comm="syz-executor797" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 19.942340][ T340] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 19.952356][ T340] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor797: reserved inode found cleared - inode=1 [ 19.964873][ T340] incfs: Can't find or create .index dir in ./file0 [ 19.972258][ T340] BUG: Dentry ffff8881ecbd7cc0{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 19.982137][ T340] ------------[ cut here ]------------ [ 19.987590][ T340] WARNING: CPU: 1 PID: 340 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.995882][ T340] Modules linked in: [ 19.999760][ T340] CPU: 1 PID: 340 Comm: syz-executor797 Not tainted 5.4.125-syzkaller-00004-g4614f5de0f95 #0 [ 20.010031][ T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.020182][ T340] RIP: 0010:umount_check+0x179/0x1c0 [ 20.025442][ T340] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 0c e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 37 a2 af 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 [ 20.046092][ T340] RSP: 0018:ffff8881e550fa58 EFLAGS: 00010282 [ 20.052130][ T340] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: 5a5578fb1d7a1c00 [ 20.060082][ T340] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 20.068032][ T340] RBP: ffff8881e5931420 R08: ffffffff814e90d7 R09: ffffed103ede9608 [ 20.075972][ T340] R10: ffffed103ede9608 R11: 0000000000000000 R12: dffffc0000000000 [ 20.083913][ T340] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbd7cc0 [ 20.091854][ T340] FS: 00000000018ce300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 20.100747][ T340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.107558][ T340] CR2: 00000000004b51d0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 20.115587][ T340] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.123525][ T340] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.131462][ T340] Call Trace: [ 20.134722][ T340] d_walk+0x2d9/0x540 [ 20.138673][ T340] ? __d_free+0x20/0x20 [ 20.142800][ T340] shrink_dcache_for_umount+0x8a/0x1a0 [ 20.148234][ T340] generic_shutdown_super+0x63/0x2a0 [ 20.153495][ T340] kill_block_super+0x79/0xd0 [ 20.158150][ T340] deactivate_locked_super+0xaf/0x100 [ 20.163496][ T340] deactivate_super+0x1b3/0x270 [ 20.168326][ T340] ? deactivate_locked_super+0x100/0x100 [ 20.173937][ T340] ? dput+0x4de/0x5d0 [ 20.177898][ T340] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 20.182978][ T340] ? find_next_bit+0xc6/0x110 [ 20.187633][ T340] cleanup_mnt+0x432/0x4e0 [ 20.192022][ T340] task_work_run+0x186/0x1b0 [ 20.196844][ T340] do_exit+0xcb9/0x2bf0 [ 20.200968][ T340] ? mm_update_next_owner+0x5c0/0x5c0 [ 20.206422][ T340] ? __up_read+0x6f/0x1b0 [ 20.210912][ T340] ? __down_read+0x210/0x210 [ 20.215493][ T340] ? check_preemption_disabled+0x154/0x330 [ 20.221270][ T340] ? debug_smp_processor_id+0x20/0x20 [ 20.226611][ T340] do_group_exit+0x15c/0x2c0 [ 20.231193][ T340] ? do_user_addr_fault+0x6b0/0xb40 [ 20.236371][ T340] __do_sys_exit_group+0x13/0x20 [ 20.241292][ T340] __se_sys_exit_group+0x10/0x10 [ 20.246199][ T340] __x64_sys_exit_group+0x37/0x40 [ 20.251191][ T340] do_syscall_64+0xcb/0x1e0 [ 20.255667][ T340] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.263501][ T340] RIP: 0033:0x442f39 [ 20.267542][ T340] Code: Bad RIP value. [ 20.271581][ T340] RSP: 002b:00007ffdcba318f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 20.279960][ T340] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442f39 [ 20.287928][ T340] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 20.295959][ T340] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 20.303900][ T340] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 20.311842][ T340] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 20.319797][ T340] ---[ end trace 40c6b63a4bfd9f31 ]--- [ ***] A start job is running for dev-ttyS0.device (13s / 1min [ 20.333419][ T340] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... 30s)