Warning: Permanently added '10.128.0.35' (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)[ 18.982078][ T22] audit: type=1400 audit(1625434898.467:8): avc: denied { execmem } for pid=336 comm="syz-executor838" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 19.025872][ T337] incfs: Can't find or create .incomplete dir in ./file0 [ 19.033964][ T337] BUG: Dentry ffff8881dcd3a550{i=0,n=.incomplete} still in use (1) [unmount of vfat loop0] [ 19.044260][ T337] ------------[ cut here ]------------ [ 19.049705][ T337] WARNING: CPU: 1 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.058037][ T337] Modules linked in: [ 19.061937][ T337] CPU: 1 PID: 337 Comm: syz-executor838 Not tainted 5.4.125-syzkaller-00243-geaef435f4357 #0 [ 19.072092][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.082212][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 19.087586][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 05 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 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 [ 19.107165][ T337] RSP: 0018:ffff8881e679fa58 EFLAGS: 00010282 [ 19.113211][ T337] RAX: 0000000000000059 RBX: ffffffff85fc5d00 RCX: a378c3873e67a100 [ 19.121159][ T337] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 19.129193][ T337] RBP: ffff8881dd6a4420 R08: ffffffff814e90a7 R09: ffffed103ede5e08 [ 19.137135][ T337] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 19.145164][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881dcd3a550 [ 19.153106][ T337] FS: 0000000001a6e300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 19.162000][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.168844][ T337] CR2: 00000000004b51d0 CR3: 0000000005e0e000 CR4: 00000000001406e0 [ 19.176795][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.184741][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.192695][ T337] Call Trace: [ 19.195965][ T337] d_walk+0x2d9/0x540 [ 19.199927][ T337] ? __d_free+0x20/0x20 [ 19.204058][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 19.209588][ T337] generic_shutdown_super+0x63/0x2a0 [ 19.214841][ T337] kill_block_super+0x79/0xd0 [ 19.219596][ T337] deactivate_locked_super+0xaf/0x100 [ 19.225062][ T337] deactivate_super+0x1b3/0x270 [ 19.230130][ T337] ? deactivate_locked_super+0x100/0x100 [ 19.235776][ T337] ? dput+0x4de/0x5d0 [ 19.239731][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.245045][ T337] ? find_next_bit+0xc6/0x110 [ 19.249701][ T337] cleanup_mnt+0x432/0x4e0 [ 19.254091][ T337] task_work_run+0x186/0x1b0 [ 19.258836][ T337] do_exit+0xcb9/0x2bf0 [ 19.262976][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.268411][ T337] ? __up_read+0x6f/0x1b0 [ 19.273083][ T337] ? __down_read+0x210/0x210 [ 19.277827][ T337] ? check_preemption_disabled+0x154/0x330 [ 19.283623][ T337] ? debug_smp_processor_id+0x20/0x20 [ 19.289004][ T337] do_group_exit+0x15c/0x2c0 [ 19.293567][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 19.298733][ T337] __do_sys_exit_group+0x13/0x20 [ 19.303662][ T337] __se_sys_exit_group+0x10/0x10 [ 19.308784][ T337] __x64_sys_exit_group+0x37/0x40 [ 19.314009][ T337] do_syscall_64+0xcb/0x1e0 [ 19.318491][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.324351][ T337] RIP: 0033:0x442e19 [ 19.328243][ T337] Code: Bad RIP value. [ 19.332462][ T337] RSP: 002b:00007ffe9dce1bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.341183][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e19 [ 19.349221][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.357179][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 19.365134][ T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 19.373454][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.381493][ T337] ---[ end trace 9403aa93d9085b8f ]--- [ 19.387656][ T337] BUG: Dentry ffff8881dcd3a550{i=0,n=.incomplete} still in use (1) [unmount of vfat loop0] [ *[0;[ 19.398050][ T337] ------------[ cut here ]------------ [ 19.404747][ T337] WARNING: CPU: 1 PID: 337 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 19.413293][ T337] Modules linked in: [ 19.417292][ T337] CPU: 1 PID: 337 Comm: syz-executor838 Tainted: G W 5.4.125-syzkaller-00243-geaef435f4357 #0 [ 19.428965][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.439021][ T337] RIP: 0010:umount_check+0x179/0x1c0 [ 19.444658][ T337] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 a0 05 e9 84 4c 89 fe 4c 89 f2 4c 89 f9 45 89 e8 31 c0 55 e8 a7 a3 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 [ 19.464336][ T337] RSP: 0018:ffff8881e679fa58 EFLAGS: 00010282 [ 19.470378][ T337] RAX: 0000000000000059 RBX: ffffffff85fc5d00 RCX: a378c3873e67a100 [ 19.478323][ T337] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 19.486440][ T337] RBP: ffff8881dd6a4420 R08: ffffffff814e90a7 R09: ffffed103ede5e08 [ 19.494419][ T337] R10: ffffed103ede5e08 R11: 0000000000000000 R12: dffffc0000000000 [ 19.502489][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881dcd3a550 [ 19.510493][ T337] FS: 0000000001a6e300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 19.519555][ T337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.526262][ T337] CR2: 0000000000442def CR3: 00000001ee189000 CR4: 00000000001406e0 [ 19.534447][ T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.542581][ T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.550538][ T337] Call Trace: [ 19.554013][ T337] d_walk+0x2d9/0x540 [ 19.558090][ T337] ? __d_free+0x20/0x20 [ 19.562228][ T337] shrink_dcache_for_umount+0x8a/0x1a0 [ 19.567847][ T337] generic_shutdown_super+0x63/0x2a0 [ 19.573265][ T337] kill_block_super+0x79/0xd0 [ 19.577925][ T337] deactivate_locked_super+0xaf/0x100 [ 19.583370][ T337] deactivate_super+0x1b3/0x270 [ 19.588407][ T337] ? deactivate_locked_super+0x100/0x100 [ 19.594228][ T337] ? dput+0x4de/0x5d0 [ 19.598214][ T337] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 19.603679][ T337] ? find_next_bit+0xc6/0x110 [ 19.608356][ T337] cleanup_mnt+0x432/0x4e0 [ 19.612746][ T337] task_work_run+0x186/0x1b0 [ 19.617469][ T337] do_exit+0xcb9/0x2bf0 [ 19.621641][ T337] ? mm_update_next_owner+0x5c0/0x5c0 [ 19.627014][ T337] ? __up_read+0x6f/0x1b0 [ 19.631318][ T337] ? __down_read+0x210/0x210 [ 19.635901][ T337] ? check_preemption_disabled+0x154/0x330 [ 19.641713][ T337] ? debug_smp_processor_id+0x20/0x20 [ 19.647152][ T337] do_group_exit+0x15c/0x2c0 [ 19.651744][ T337] ? do_user_addr_fault+0x6b0/0xb40 [ 19.657326][ T337] __do_sys_exit_group+0x13/0x20 [ 19.662265][ T337] __se_sys_exit_group+0x10/0x10 [ 19.667183][ T337] __x64_sys_exit_group+0x37/0x40 [ 19.672197][ T337] do_syscall_64+0xcb/0x1e0 [ 19.676827][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.682889][ T337] RIP: 0033:0x442e19 [ 19.686762][ T337] Code: Bad RIP value. [ 19.690810][ T337] RSP: 002b:00007ffe9dce1bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 19.699546][ T337] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e19 [ 19.707527][ T337] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 19.715577][ T337] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 19.723647][ T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 19.731799][ T337] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 19.740039][ T337] ---[ end trace 9403aa93d9085b90 ]--- 1;31m**] A start job is running f[ 19.749340][ T337] VFS: Busy inodes after unmount of loop0. Self-destruct in 5 seconds. Have a nice day... or dev-ttyS0.device (12s / 1min 30s)