kernel_clone+0xea/0x7f0
 __do_sys_clone3+0x1f5/0x280
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.3/4010
Modules linked in:
CPU: 0 UID: 0 PID: 4010 Comm: syz-executor.3 Tainted: G        W           6.17.0-rc3-next-20250829 #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 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
RSP: 0018:ffff888048f9f9b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110091f3f3c RCX: ffffffff81bf96d3
RDX: ffff88800a813700 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801ffb0fc0 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888048f9fa20
R13: 00000000ffffffff R14: dead000000000100 R15: ffff88801ffb0fc0
FS:  0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f447052a800 CR3: 000000000bc0a000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 namespace_unlock+0x7f1/0x810
 put_mnt_ns+0xf5/0x120
 free_nsproxy+0x3a/0x400
 switch_task_namespaces+0xe2/0x100
 do_exit+0x841/0x2970
 do_group_exit+0xd3/0x2a0
 get_signal+0x2315/0x2340
 arch_do_signal_or_restart+0x80/0x790
 irqentry_exit_to_user_mode+0x106/0x1c0
 exc_page_fault+0xd9/0x180
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 002b:0000000020000228 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f7d508fff60 RCX: 00007f7d507ecb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000240
RBP: 00007f7d50846f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3fcc126f R14: 00007f7d4dd62300 R15: 0000000000022000
 </TASK>
irq event stamp: 751
hardirqs last  enabled at (761): [<ffffffff81541b18>] __up_console_sem+0x78/0x80
hardirqs last disabled at (770): [<ffffffff81541afd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (246): [<ffffffff813bafcc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (237): [<ffffffff813bb364>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 118
kmemleak: Cannot insert 0x607f1a63957c into the object search tree (overlaps existing)
CPU: 0 UID: 0 PID: 4004 Comm: syz-executor.2 Tainted: G        W           6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xca/0x120
 __link_object+0x190/0x210
 __create_object+0x48/0x80
 pcpu_alloc_noprof+0x87a/0x1170
 __percpu_init_rwsem+0x2d/0x160
 alloc_super+0x29e/0xb80
 sget_fc+0xfe/0xb80
 get_tree_bdev_flags+0x1b8/0x620
 vfs_get_tree+0x93/0x340
 path_mount+0x132d/0x1dd0
 __x64_sys_mount+0x27b/0x300
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f52023b704a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007f51ff92afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f52023b704a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f51ff92b000
RBP: 00007f51ff92b040 R08: 00007f51ff92b040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f51ff92b000 R15: 0000000020010d00
 </TASK>
kmemleak: Kernel memory leak detector disabled
kmemleak: Object (percpu) 0x607f1a639578 (size 8):
kmemleak:   comm "syz-executor.3", pid 3994, jiffies 4294812954
kmemleak:   min_count = 1
kmemleak:   count = 0
kmemleak:   flags = 0x21
kmemleak:   checksum = 0
kmemleak:   backtrace:
 pcpu_alloc_noprof+0x87a/0x1170
 alloc_vfsmnt+0x135/0x6e0
 clone_mnt+0x6c/0xb70
 copy_tree+0x34b/0xaf0
 copy_mnt_ns+0x1ab/0xab0
 create_new_namespaces+0xd6/0xab0
 copy_namespaces+0x45c/0x580
 copy_process+0x2649/0x73c0
 kernel_clone+0xea/0x7f0
 __do_sys_clone3+0x1f5/0x280
 do_syscall_64+0xbf/0x360
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Automatic memory scanning thread ended
FAT-fs (loop2): bogus number of reserved sectors
FAT-fs (loop2): Can't find a valid FAT filesystem