Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty5. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.190' (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 (12s / 1min 30s)[ 18.748618][ T22] audit: type=1400 audit(1631937259.418:8): avc: denied { execmem } for pid=335 comm="syz-executor448" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 18.778304][ T338] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 18.790693][ T338] EXT4-fs error (device loop0): __ext4_new_inode:930: comm syz-executor448: reserved inode found cleared - inode=1 [ 18.803452][ T338] incfs: Can't find or create .index dir in ./file0 [ 18.812430][ T342] BUG: Dentry ffff8881ecbbfaa0{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 18.822117][ T342] ------------[ cut here ]------------ [ 18.827572][ T342] WARNING: CPU: 0 PID: 342 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 18.835868][ T342] Modules linked in: [ 18.839736][ T342] CPU: 0 PID: 342 Comm: syz-executor448 Not tainted 5.4.125-syzkaller-00009-g546305780d82 #0 [ 18.849844][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.859880][ T342] RIP: 0010:umount_check+0x179/0x1c0 [ 18.865134][ T342] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 08 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 [ 18.884707][ T342] RSP: 0018:ffff8881e6eb7738 EFLAGS: 00010282 [ 18.890741][ T342] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: e40e0e78559c7800 [ 18.898680][ T342] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 18.906624][ T342] RBP: ffff8881f35f6420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 18.914561][ T342] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 18.922499][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbbfaa0 [ 18.930439][ T342] FS: 00007f2d95f74700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 18.939345][ T342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.945894][ T342] CR2: 00007f2d96039178 CR3: 0000000005e0e000 CR4: 00000000001406f0 [ 18.953834][ T342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.961778][ T342] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.969714][ T342] Call Trace: [ 18.972973][ T342] d_walk+0x2d9/0x540 [ 18.976933][ T342] ? __d_free+0x20/0x20 [ 18.981055][ T342] shrink_dcache_for_umount+0x8a/0x1a0 [ 18.986479][ T342] generic_shutdown_super+0x63/0x2a0 [ 18.991730][ T342] kill_block_super+0x79/0xd0 [ 18.996374][ T342] deactivate_locked_super+0xaf/0x100 [ 19.001711][ T342] deactivate_super+0x1b3/0x270 [ 19.006529][ T342] ? deactivate_locked_super+0x100/0x100 [ 19.012138][ T342] ? dput+0x4de/0x5d0 [ 19.016091][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.021171][ T342] ? find_next_bit+0xc6/0x110 [ 19.025813][ T342] cleanup_mnt+0x432/0x4e0 [ 19.030196][ T342] task_work_run+0x186/0x1b0 [ 19.034754][ T342] do_exit+0xcb9/0x2bf0 [ 19.038877][ T342] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.044219][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.049298][ T342] ? _raw_spin_lock_irqsave+0x210/0x210 [ 19.054809][ T342] do_group_exit+0x15c/0x2c0 [ 19.059369][ T342] get_signal+0x164f/0x1fc0 [ 19.063844][ T342] ? ptrace_notify+0x340/0x340 [ 19.068575][ T342] do_signal+0x8d/0x610 [ 19.072698][ T342] ? signal_fault+0x1e0/0x1e0 [ 19.077348][ T342] ? __x64_sys_futex+0x1d/0xf0 [ 19.082080][ T342] prepare_exit_to_usermode+0x207/0x310 [ 19.087591][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.093458][ T342] RIP: 0033:0x7f2d95fe8259 [ 19.097848][ T342] Code: Bad RIP value. [ 19.101882][ T342] RSP: 002b:00007f2d95f742f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 19.110257][ T342] RAX: fffffffffffffe00 RBX: 00007f2d9606d3f0 RCX: 00007f2d95fe8259 [ 19.118211][ T342] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2d9606d3f8 [ 19.118216][ T342] RBP: 00007f2d9606d3fc R08: 0000000000000000 R09: 0000000000000000 [ 19.118220][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 19.118224][ T342] R13: 6e656d6572636e69 R14: e5d26e84aa4cf3c6 R15: 00007f2d9606d3f8 [ 19.118233][ T342] ---[ end trace 808564a9ece349c9 ]--- [ 19.155969][ T342] BUG: Dentry ffff8881ecbbfaa0{i=0,n=.index} still in use (1) [unmount of ext4 loop0] [ 19.165604][ T342] ------------[ cut here ]------------ [ 19.171052][ T342] WARNING: CPU: 0 PID: 342 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.179359][ T342] Modules linked in: [ 19.183244][ T342] CPU: 0 PID: 342 Comm: syz-executor448 Tainted: G W 5.4.125-syzkaller-00009-g546305780d82 #0 [[ 19.194760][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.204882][ T342] RIP: 0010:umount_check+0x179/0x1c0 [ 19.210157][ T342] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 08 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 [ 19.229914][ T342] RSP: 0018:ffff8881e6eb7738 EFLAGS: 00010282 [ 19.235959][ T342] RAX: 0000000000000054 RBX: ffffffff85faa1c0 RCX: e40e0e78559c7800 [ 19.243917][ T342] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 *[0[ 19.251879][ T342] RBP: ffff8881f35f6420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 19.261207][ T342] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 19.269157][ T342] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecbbfaa0 [ 19.277111][ T342] FS: 00007f2d95f74700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 19.286017][ T342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.292582][ T342] CR2: 00007f2d95fe822f CR3: 0000000005e0e000 CR4: 00000000001406f0 m] A start job i[ 19.300534][ T342] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.309949][ T342] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.317898][ T342] Call Trace: [ 19.321177][ T342] d_walk+0x2d9/0x540 s running for de[ 19.325154][ T342] ? __d_free+0x20/0x20 [ 19.330851][ T342] shrink_dcache_for_umount+0x8a/0x1a0 v-ttyS0.device ([ 19.336300][ T342] generic_shutdown_super+0x63/0x2a0 12s / 1min 30s)[ 19.342949][ T342] kill_block_super+0x79/0xd0 [ 19.348901][ T342] deactivate_locked_super+0xaf/0x100 [ 19.354255][ T342] deactivate_super+0x1b3/0x270 [ 19.359081][ T342] ? deactivate_locked_super+0x100/0x100 [ 19.364678][ T342] ? dput+0x4de/0x5d0 [ 19.368626][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.373705][ T342] ? find_next_bit+0xc6/0x110 [ 19.378349][ T342] cleanup_mnt+0x432/0x4e0 [ 19.382774][ T342] task_work_run+0x186/0x1b0 [ 19.387332][ T342] do_exit+0xcb9/0x2bf0 [ 19.391459][ T342] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.396798][ T342] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.401875][ T342] ? _raw_spin_lock_irqsave+0x210/0x210 [ 19.407402][ T342] do_group_exit+0x15c/0x2c0 [ 19.411957][ T342] get_signal+0x164f/0x1fc0 [ 19.416428][ T342] ? ptrace_notify+0x340/0x340 [ 19.421336][ T342] do_signal+0x8d/0x610 [ 19.425458][ T342] ? signal_fault+0x1e0/0x1e0 [ 19.430101][ T342] ? __x64_sys_futex+0x1d/0xf0 [ 19.434831][ T342] prepare_exit_to_usermode+0x207/0x310 [ 19.440341][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.446200][ T342] RIP: 0033:0x7f2d95fe8259 [ 19.450606][ T342] Code: Bad RIP value. [ 19.454640][ T342] RSP: 002b:00007f2d95f742f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 19.463016][ T342] RAX: fffffffffffffe00 RBX: 00007f2d9606d3f0 RCX: 00007f2d95fe8259 [ 19.470953][ T342] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2d9606d3f8 [ 19.478890][ T342] RBP: 00007f2d9606d3fc R08: 0000000000000000 R09: 0000000000000000 [ 19.486829][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 19.494770][ T342] R13: 6e656d6572636e69 R14: e5d26e84aa4cf3c6 R15: 00007f2d9606d3f8 [ 19.502710][ T342] ---[ end trace 808564a9ece349ca ]--- [ 19.510318][ T342] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...