loop2: detected capacity change from 0 to 1
FAT-fs (loop2): unable to read boot sector (logical sector size = 2048)
loop2: detected capacity change from 0 to 1
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.7/280
Modules linked in:
CPU: 1 UID: 0 PID: 280 Comm: syz-executor.7 Tainted: G        W           6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 d6 30 81 04 01 e8 71 df 91 ff e9 41 fc ff ff e8 27 47 b4 ff 31 ff 44 89 ee e8 4d 42 b4 ff 45 85 ed 79 09 e8 13 47 b4 ff 90 <0f> 0b 90 e8 0a 47 b4 ff e8 b5 2d fc 02 31 ff 89 c5 89 c6 e8 2a 42
RSP: 0018:ffff888016bbfc00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002d77f85 RCX: ffffffff81bfaf93
RDX: ffff88800a863700 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff88801ddd0fc0 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888016bbfc68
R13: 00000000ffffffff R14: dead000000000100 R15: ffff88801ddd0fc0
FS:  0000555591048400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffa6f46ff8 CR3: 0000000037711000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 namespace_unlock+0x7f1/0x810
 path_umount+0x6a4/0x1100
 __x64_sys_umount+0x15c/0x190
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc3201f0f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa6f472a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000024 RCX: 00007fc3201f0f87
RDX: 00007fffa6f4737a RSI: 000000000000000a RDI: 00007fffa6f47370
RBP: 00007fffa6f47370 R08: 00000000ffffffff R09: 00007fffa6f47140
R10: 0000555591049c7b R11: 0000000000000246 R12: 00007fc320249105
R13: 00007fffa6f48430 R14: 0000555591049c20 R15: 00007fffa6f48470
 </TASK>
irq event stamp: 221247
hardirqs last  enabled at (221257): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (221266): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (221168): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (221163): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.7/280
Modules linked in:
CPU: 1 UID: 0 PID: 280 Comm: syz-executor.7 Tainted: G        W           6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 d6 30 81 04 01 e8 71 df 91 ff e9 41 fc ff ff e8 27 47 b4 ff 31 ff 44 89 ee e8 4d 42 b4 ff 45 85 ed 79 09 e8 13 47 b4 ff 90 <0f> 0b 90 e8 0a 47 b4 ff e8 b5 2d fc 02 31 ff 89 c5 89 c6 e8 2a 42
RSP: 0018:ffff888016bbfce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002d77fa1 RCX: ffffffff81bfaf93
RDX: ffff88800a863700 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff88801ddd0fc0 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000fffffffe R11: 0000000000000001 R12: ffff888016bbfd48
R13: 00000000fffffffe R14: ffff88801ddd0fc0 R15: ffff88801ddd10a8
FS:  0000555591048400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055acba101948 CR3: 0000000037711000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 path_umount+0x6e0/0x1100
 __x64_sys_umount+0x15c/0x190
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc3201f0f87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffa6f472a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000024 RCX: 00007fc3201f0f87
RDX: 00007fffa6f4737a RSI: 000000000000000a RDI: 00007fffa6f47370
RBP: 00007fffa6f47370 R08: 00000000ffffffff R09: 00007fffa6f47140
R10: 0000555591049c7b R11: 0000000000000246 R12: 00007fc320249105
R13: 00007fffa6f48430 R14: 0000555591049c20 R15: 00007fffa6f48470
 </TASK>
irq event stamp: 221941
hardirqs last  enabled at (221951): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (221960): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (221930): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (221925): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---