Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. executing program [ *** ] 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)[ *] 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)[** ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (16s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (17s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (18s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (19s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (19s / 1min 30s)[ *] A start job is running for dev-ttyS0.device (20s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (20s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (21s / 1min 30s)[ 27.327174][ T22] audit: type=1400 audit(1630524077.814:8): avc: denied { execmem } for pid=333 comm="syz-executor237" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 27.367445][ T335] incfs: Can't find or create .index dir in ./file0 [ 27.375662][ T335] BUG: Dentry ffff8881ecb12660{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 27.385531][ T335] ------------[ cut here ]------------ [ 27.391255][ T335] WARNING: CPU: 0 PID: 335 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 27.399620][ T335] Modules linked in: [ 27.403617][ T335] CPU: 0 PID: 335 Comm: syz-executor237 Not tainted 5.4.125-syzkaller-00016-gae94e015273b #0 [ 27.413866][ T335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.424017][ T335] RIP: 0010:umount_check+0x179/0x1c0 [ 27.429296][ T335] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 09 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 [ 27.449462][ T335] RSP: 0018:ffff8881e5877a58 EFLAGS: 00010282 [ 27.455605][ T335] RAX: 0000000000000054 RBX: ffffffff85fc5e40 RCX: c8caf49cf8bc1c00 [ 27.463553][ T335] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 27.471505][ T335] RBP: ffff8881e5f43420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 27.479479][ T335] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 27.487438][ T335] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb12660 [ 27.495571][ T335] FS: 000000000088e300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.504485][ T335] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.511238][ T335] CR2: 00000000004b51d0 CR3: 00000001de640000 CR4: 00000000001406f0 [ 27.519193][ T335] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.527147][ T335] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.535110][ T335] Call Trace: [ 27.538688][ T335] d_walk+0x2d9/0x540 [ 27.542664][ T335] ? __d_free+0x20/0x20 [ 27.546793][ T335] shrink_dcache_for_umount+0x8a/0x1a0 [ 27.552569][ T335] generic_shutdown_super+0x63/0x2a0 [ 27.557836][ T335] kill_block_super+0x79/0xd0 [ 27.562668][ T335] deactivate_locked_super+0xaf/0x100 [ 27.568112][ T335] deactivate_super+0x1b3/0x270 [ 27.573082][ T335] ? deactivate_locked_super+0x100/0x100 [ 27.578708][ T335] ? dput+0x4de/0x5d0 [ 27.582679][ T335] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 27.587964][ T335] ? find_next_bit+0xc6/0x110 [ 27.592619][ T335] cleanup_mnt+0x432/0x4e0 [ 27.597022][ T335] task_work_run+0x186/0x1b0 [ 27.601615][ T335] do_exit+0xcb9/0x2bf0 [ 27.605746][ T335] ? mm_update_next_owner+0x5c0/0x5c0 [ 27.611088][ T335] ? __up_read+0x6f/0x1b0 [ 27.615390][ T335] ? __down_read+0x210/0x210 [ 27.619949][ T335] ? check_preemption_disabled+0x154/0x330 [ 27.626319][ T335] ? debug_smp_processor_id+0x20/0x20 [ 27.631898][ T335] do_group_exit+0x15c/0x2c0 [ 27.636487][ T335] ? do_user_addr_fault+0x6b0/0xb40 [ 27.641792][ T335] __do_sys_exit_group+0x13/0x20 [ 27.646740][ T335] __se_sys_exit_group+0x10/0x10 [ 27.651656][ T335] __x64_sys_exit_group+0x37/0x40 [ 27.656651][ T335] do_syscall_64+0xcb/0x1e0 [ 27.661139][ T335] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.667395][ T335] RIP: 0033:0x442e09 [ 27.672181][ T335] Code: Bad RIP value. [ 27.676491][ T335] RSP: 002b:00007fff73073768 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 27.684873][ T335] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e09 [ 27.692905][ T335] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 27.700868][ T335] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 27.708838][ T335] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004b42f0 [ 27.717054][ T335] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 27.725072][ T335] ---[ end trace b2f34069053dc60b ]--- [ 27.738326][ T335] BUG: Dentry ffff8881ecb12660{i=0,n=.index} still in use (1) [unmount of vfat loop0] [ 27.748340][ T335] ------------[ cut here ]------------ [ 27.753874][ T335] WARNING: CPU: 0 PID: 335 at fs/dcache.c:1597 umount_check+0x179/0x1c0 [ 27.762755][ T335] Modules linked in: [ 27.766846][ T335] CPU: 0 PID: 335 Comm: syz-executor237 Tainted: G W 5.4.125-syzkaller-00016-gae94e015273b #0 [ 27.778759][ T335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.788822][ T335] RIP: 0010:umount_check+0x179/0x1c0 [ 27.794460][ T335] Code: ff 4c 8b 0b 48 81 c5 20 04 00 00 48 c7 c7 20 09 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 [ 27.794465][ T335] RSP: 0018:ffff8881e5877a58 EFLAGS: 00010282 [ 27.794473][ T335] RAX: 0000000000000054 RBX: ffffffff85fc5e40 RCX: c8caf49cf8bc1c00 [ 27.794476][ T335] RDX: 0000000000000000 RSI: 0000000080000003 RDI: 0000000000000000 [ 27.794480][ T335] RBP: ffff8881e5f43420 R08: ffffffff814e90d7 R09: ffffed103edc9608 [ 27.794492][ T335] R10: ffffed103edc9608 R11: 0000000000000000 R12: dffffc0000000000 [ 27.853555][ T335] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881ecb12660 [ 27.861611][ T335] FS: 000000000088e300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.870707][ T335] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.877270][ T335] CR2: 00007fc982dad018 CR3: 00000001eb1e0000 CR4: 00000000001406f0 [ 27.885487][ T335] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.893933][ T335] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.901973][ T335] Call Trace: [ 27.905821][ T335] d_walk+0x2d9/0x540 [ *[ 27.910233][ T335] ? __d_free+0x20/0x20 [ 27.915750][ T335] shrink_dcache_for_umount+0x8a/0x1a0 [ 27.921194][ T335] generic_shutdown_super+0x63/0x2a0 [ 27.926616][ T335] kill_block_super+0x79/0xd0 [ 27.931289][ T335] deactivate_locked_super+0xaf/0x100 [ 27.936865][ T335] deactivate_super+0x1b3/0x270 [0;1;31m*[0[ 27.941715][ T335] ? deactivate_locked_super+0x100/0x100 [ 27.949007][ T335] ? dput+0x4de/0x5d0 [ 27.952975][ T335] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 27.958289][ T335] ? find_next_bit+0xc6/0x110 ;31m* ] A st[ 27.962961][ T335] cleanup_mnt+0x432/0x4e0 [ 27.968931][ T335] task_work_run+0x186/0x1b0 [ 27.973690][ T335] do_exit+0xcb9/0x2bf0 art job is runni[ 27.978077][ T335] ? mm_update_next_owner+0x5c0/0x5c0 [ 27.984914][ T335] ? __up_read+0x6f/0x1b0 [ 27.989600][ T335] ? __down_read+0x210/0x210 ng for dev-ttyS0[ 27.994215][ T335] ? check_preemption_disabled+0x154/0x330 [ 28.001746][ T335] ? debug_smp_processor_id+0x20/0x20 [ 28.007111][ T335] do_group_exit+0x15c/0x2c0 [ 28.011993][ T335] ? do_user_addr_fault+0x6b0/0xb40 [ 28.017196][ T335] __do_sys_exit_group+0x13/0x20 [ 28.022322][ T335] __se_sys_exit_group+0x10/0x10 [ 28.027698][ T335] __x64_sys_exit_group+0x37/0x40 .device (21s / 1[ 28.032746][ T335] do_syscall_64+0xcb/0x1e0 [ 28.038726][ T335] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 28.045422][ T335] RIP: 0033:0x442e09 min 30s)[ 28.049305][ T335] Code: Bad RIP value. [ 28.054563][ T335] RSP: 002b:00007fff73073768 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 28.063395][ T335] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442e09 [ 28.071573][ T335] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 28.081029][ T335] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 28.089444][ T335] R10: 0000000000000000 R11: 0