[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.114' (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 (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 (13s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (14s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[ 23.420227][ T22] audit: type=1400 audit(1621804027.731:8): avc: denied { execmem } for pid=328 comm="syz-executor637" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 23.450810][ T330] incfs: Can't find or create .index dir in ./file0 [ 23.458505][ T330] BUG: Dentry ffff8881ecb65440{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.468284][ T330] ------------[ cut here ]------------ [ 23.473739][ T330] WARNING: CPU: 0 PID: 330 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.482038][ T330] Modules linked in: [ 23.485913][ T330] CPU: 0 PID: 330 Comm: syz-executor637 Not tainted 5.4.121-syzkaller-00749-gc6775ce1621b #0 [ 23.496138][ T330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.506170][ T330] RIP: 0010:umount_check+0x179/0x1c0 [ 23.511424][ T330] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 01 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 a9 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 [ 23.530996][ T330] RSP: 0018:ffff8881e6b97a58 EFLAGS: 00010282 [ 23.537026][ T330] RAX: 0000000000000055 RBX: ffffffff85fc5cc0 RCX: 34dc52ef5543e200 [ 23.544966][ T330] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.552905][ T330] RBP: ffff8881e6b8e420 R08: ffffffff814e8397 R09: ffffed103edc5e08 [ 23.560845][ T330] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.568787][ T330] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb65440 [ 23.576728][ T330] FS: 0000000000cff3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.585728][ T330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.592287][ T330] CR2: 00000000004b51d0 CR3: 00000001de92e000 CR4: 00000000001406f0 [ 23.600231][ T330] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.608171][ T330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.616111][ T330] Call Trace: [ 23.619371][ T330] d_walk+0x2d9/0x540 [ 23.623328][ T330] ? __d_free+0x20/0x20 [ 23.627452][ T330] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.632877][ T330] generic_shutdown_super+0x63/0x2a0 [ 23.638128][ T330] kill_block_super+0x79/0xd0 [ 23.642771][ T330] deactivate_locked_super+0xaf/0x100 [ 23.648106][ T330] deactivate_super+0x1b3/0x270 [ 23.652923][ T330] ? deactivate_locked_super+0x100/0x100 [ 23.658520][ T330] ? dput+0x4de/0x5d0 [ 23.662536][ T330] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 23.667664][ T330] ? find_next_bit+0xc6/0x110 [ 23.672307][ T330] cleanup_mnt+0x432/0x4e0 [ 23.676691][ T330] task_work_run+0x186/0x1b0 [ 23.681248][ T330] do_exit+0xcb9/0x2bf0 [ 23.685377][ T330] ? mm_update_next_owner+0x5c0/0x5c0 [ 23.690717][ T330] ? __up_read+0x6f/0x1b0 [ 23.695060][ T330] ? __down_read+0x210/0x210 [ 23.699617][ T330] ? check_preemption_disabled+0x154/0x330 [ 23.705389][ T330] ? debug_smp_processor_id+0x20/0x20 [ 23.710837][ T330] do_group_exit+0x15c/0x2c0 [ 23.715399][ T330] ? do_user_addr_fault+0x6b0/0xb40 [ 23.720566][ T330] __do_sys_exit_group+0x13/0x20 [ 23.725586][ T330] __se_sys_exit_group+0x10/0x10 [ 23.730489][ T330] __x64_sys_exit_group+0x37/0x40 [ 23.735479][ T330] do_syscall_64+0xcb/0x1e0 [ 23.739951][ T330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.745810][ T330] RIP: 0033:0x4434c9 [ 23.749679][ T330] Code: Bad RIP value. [ 23.753711][ T330] RSP: 002b:00007ffdfc579b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.762094][ T330] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 00000000004434c9 [ 23.770040][ T330] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.777981][ T330] RBP: 0000000000000001 R08: ffffffffffffffc4 R09: 0000000000000000 [ 23.785921][ T330] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 23.793861][ T330] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 23.801860][ T330] ---[ end trace 82159d9134791a1c ]--- [ 23.807441][ T330] BUG: Dentry ffff8881ecb65440{i=0,n=.index} still in use (1) [unmount of msdos loop0] [ 23.817214][ T330] ------------[ cut here ]------------ [ 23.822658][ T330] WARNING: CPU: 0 PID: 330 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 23.831005][ T330] Modules linked in: [ 23.834870][ T330] CPU: 0 PID: 330 Comm: syz-executor637 Tainted: G W 5.4.121-syzkaller-00749-gc6775ce1621b #0 [ 23.846366][ T330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.856408][ T330] RIP: 0010:umount_check+0x179/0x1c0 [ 23.861657][ T330] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 e0 01 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 b7 a9 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 [ 23.881226][ T330] RSP: 0018:ffff8881e6b97a58 EFLAGS: 00010282 [ 23.887268][ T330] RAX: 0000000000000055 RBX: ffffffff85fc5cc0 RCX: 34dc52ef5543e200 [ 23.895206][ T330] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 23.903144][ T330] RBP: ffff8881e6b8e420 R08: ffffffff814e8397 R09: ffffed103edc5e08 [ 23.911084][ T330] R10: ffffed103edc5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 23.919023][ T330] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb65440 [ 23.926965][ T330] FS: 0000000000cff3c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.935868][ T330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.935873][ T330] CR2: 000000000044349f CR3: 00000001de92e000 CR4: 00000000001406f0 [ 23.935879][ T330] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.935884][ T330] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.935886][ T330] Call Trace: [ 23.935896][ T330] d_walk+0x2d9/0x540 [ 23.935908][ T330] ? __d_free+0x20/0x20 [ 23.977636][ T330] shrink_dcache_for_umount+0x8a/0x1a0 [ 23.983083][ T330] generic_shutdown_super+0x63/0x2a0 [ 23.988347][ T330] kill_block_super+0x79/0xd0 [ 23.993005][ T330] deactivate_locked_super+0xaf/0x100 [ 23.998358][ T330] deactivate_super+0x1b3/0x270 [ 24.003207][ T330] ? deactivate_locked_super+0x100/0x100 [[ 24.008816][ T330] ? dput+0x4de/0x5d0 [ 24.013206][ T330] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 24.018311][ T330] ? find_next_bit+0xc6/0x110 [ 24.022970][ T330] cleanup_mnt+0x432/0x4e0 [ 24.027368][ T330] task_work_run+0x186/0x1b0 [ 24.031949][ T330] do_exit+0xcb9/0x2bf0 *[0;1;31[ 24.036085][ T330] ? mm_update_next_owner+0x5c0/0x5c0 [ 24.042813][ T330] ? __up_read+0x6f/0x1b0 m** [ 24.047124][ T330] ? __down_read+0x210/0x210 [ 24.053087][ T330] ? check_preemption_disabled+0x154/0x330 [ 24.058871][ T330] ? debug_smp_processor_id+0x20/0x20 [ 24.064223][ T330] do_group_exit+0x15c/0x2c0 ] A start j[ 24.068790][ T330] ? do_user_addr_fault+0x6b0/0xb40 [ 24.075348][ T330] __do_sys_exit_group+0x13/0x20 ob is running fo[ 24.080267][ T330] __se_sys_exit_group+0x10/0x10 [ 24.086567][ T330] __x64_sys_exit_group+0x37/0x40 [ 24.091571][ T330] do_syscall_64+0xcb/0x1e0 [ 24.096058][ T330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 r dev-ttyS0.devi[ 24.101928][ T330] RIP: 0033:0x4434c9 [ 24.107189][ T330] Code: Bad RIP value. [ 24.111236][ T330] RSP: 002b:00007ffdfc579b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.119642][ T330] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 00000000004434c9 [ 24.127591][ T330] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.135542][ T330] RBP: 0000000000000001 R08: ffffffffffffffc4 R09: 0000000000000000 [ 24.143491][ T330] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 24.151440][ T330] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 24.159479][ T330] ---[ end trace 82159d9134791a1d ]--- ce (16s / 1min 30s)[ 24.166679][ T330] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day...