------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: kworker/0:1/11
Modules linked in:
CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 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
Workqueue: events free_ipc
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:ffff8880095f7b48 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110012bef6e RCX: ffffffff81bf96d3
RDX: ffff8880095db700 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff8880160e5a40 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff8880095f7bb0
R13: 00000000ffffffff R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055559221dc58 CR3: 000000004049c000 CR4: 0000000000350ef0
Call Trace:
mntput+0x6b/0x90
free_ipc+0x179/0x2b0
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
irq event stamp: 52495
hardirqs last enabled at (52505): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (52512): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (52156): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (52141): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Bluetooth: hci5: command 0x0406 tx timeout
loop3: detected capacity change from 0 to 240
ieee802154 phy0 wpan0: encryption failed: -22
kmemleak: Found object by alias at 0x607f1a638f2c
CPU: 0 UID: 0 PID: 4012 Comm: syz-executor.6 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:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff92747b19
Code: Unable to access opcode bytes at 0x7eff92747aef.
RSP: 002b:00007ffde56b5d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007eff92747b19
RDX: 00007eff926fa72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffde56b5e60
kmemleak: Object (percpu) 0x607f1a638f20 (size 16):
kmemleak: comm "syz-executor.5", pid 287, jiffies 4294812659
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
mm_init+0x99b/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Found object by alias at 0x607f1a638f28
CPU: 0 UID: 0 PID: 4022 Comm: syz-executor.4 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:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d428a9b19
Code: Unable to access opcode bytes at 0x7f5d428a9aef.
RSP: 002b:00007f5d3fdfe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f5d429bd028 RCX: 00007f5d428a9b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5d429bd028
RBP: 00007f5d429bd020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d429bd02c
R13: 00007ffe9e96ae1f R14: 00007f5d3fdfe300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a638f20 (size 16):
kmemleak: comm "syz-executor.5", pid 287, jiffies 4294812659
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
mm_init+0x99b/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
loop5: detected capacity change from 0 to 264
kmemleak: Cannot insert 0x607f1a638f28 into the object search tree (overlaps existing)
CPU: 0 UID: 0 PID: 4011 Comm: syz-executor.7 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:
dump_stack_lvl+0xca/0x120
__link_object+0x190/0x210
__create_object+0x48/0x80
pcpu_alloc_noprof+0x87a/0x1170
percpu_ref_init+0x37/0x400
io_uring_setup+0x44c/0x2000
__x64_sys_io_uring_setup+0xc8/0x170
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5b3065eb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f5b2dbd4108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9
RAX: ffffffffffffffda RBX: 00007f5b30771f60 RCX: 00007f5b3065eb19
RDX: 0000000020ffc000 RSI: 00000000200000c0 RDI: 0000000000004062
RBP: 00000000200000c0 R08: 0000000020000140 R09: 0000000020000140
R10: 0000000020000000 R11: 0000000000000202 R12: 0000000020000140
R13: 0000000020ffc000 R14: 0000000020000000 R15: 0000000020ffc000
kmemleak: Kernel memory leak detector disabled
kmemleak: Object (percpu) 0x607f1a638f20 (size 16):
kmemleak: comm "syz-executor.5", pid 287, jiffies 4294812659
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
mm_init+0x99b/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Automatic memory scanning thread ended
kmemleak: Found object by alias at 0x607f1a638f28
CPU: 0 UID: 0 PID: 14 Comm: ksoftirqd/0 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:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
__percpu_ref_exit+0xa9/0x100
percpu_ref_switch_to_atomic_rcu+0x2e5/0x480
rcu_core+0x7c8/0x1800
handle_softirqs+0x1b1/0x770
run_ksoftirqd+0x2e/0x60
smpboot_thread_fn+0x41d/0x9d0
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
kmemleak: Object (percpu) 0x607f1a638f20 (size 16):
kmemleak: comm "syz-executor.5", pid 287, jiffies 4294812659
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
mm_init+0x99b/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Found object by alias at 0x607f1a638f28
CPU: 0 UID: 0 PID: 4028 Comm: syz-executor.4 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:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5d428a9b19
Code: Unable to access opcode bytes at 0x7f5d428a9aef.
RSP: 002b:00007ffe9e96b048 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f5d428a9b19
RDX: 00007f5d4285c72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2cf24518 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffe9e96b130
kmemleak: Object (percpu) 0x607f1a638f20 (size 16):
kmemleak: comm "syz-executor.5", pid 287, jiffies 4294812659
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
mm_init+0x99b/0x1170
copy_process+0x3ab7/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
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.5/287
Modules linked in:
CPU: 0 UID: 0 PID: 287 Comm: syz-executor.5 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:ffff88801a137ce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11003426fa1 RCX: ffffffff81bf96d3
RDX: ffff888016360000 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801e186380 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88801a137d48
R13: 00000000ffffffff R14: ffff88801e186380 R15: ffff88801e186468
FS: 0000555569be3400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555569becc58 CR3: 00000000458ca000 CR4: 0000000000350ef0
Call Trace:
path_umount+0x6e0/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d49851f87
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:00007ffc883820a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000000000e RCX: 00007f4d49851f87
RDX: 00007ffc88382179 RSI: 000000000000000a RDI: 00007ffc88382170
RBP: 00007ffc88382170 R08: 00000000ffffffff R09: 00007ffc88381f40
R10: 0000555569be4c7b R11: 0000000000000246 R12: 00007f4d498aa105
R13: 00007ffc88383230 R14: 0000555569be4c20 R15: 00007ffc88383270
irq event stamp: 187285
hardirqs last enabled at (187293): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (187334): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (187374): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (187385): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---