------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.3/4268
Modules linked in:
CPU: 0 UID: 0 PID: 4268 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:ffff888046c27a18 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11008d84f48 RCX: ffffffff81bf96d3
RDX: ffff888046688000 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff888016f8f500 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888046c27a80
R13: 00000000ffffffff R14: ffff888016f8f500 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cd28000 CR3: 00000000412f2000 CR4: 0000000000350ef0
Call Trace:
cleanup_mnt+0x14c/0x430
task_work_run+0x172/0x280
do_exit+0x846/0x2970
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: 0033:0xe
Code: Unable to access opcode bytes at 0xffffffffffffffe4.
RSP: 002b:00007f0b2f8d2190 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f0b3246ff60 RCX: 00007f0b3235cb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200002c0
RBP: 00007f0b323b6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9d4ddf0f R14: 00007f0b2f8d2300 R15: 0000000000022000
irq event stamp: 799
hardirqs last enabled at (807): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (816): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (612): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (605): [] __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.3/4294
Modules linked in:
CPU: 1 UID: 0 PID: 4294 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:ffff888046e1f9b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11008dc3f3c RCX: ffffffff81bf96d3
RDX: ffff888016adb700 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff888016f1f340 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888046e1fa20
R13: 00000000ffffffff R14: dead000000000100 R15: ffff888016f1f340
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d02b000 CR3: 0000000040ca2000 CR4: 0000000000350ef0
Call Trace:
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: 0033:0xe
Code: Unable to access opcode bytes at 0xffffffffffffffe4.
RSP: 002b:00007f0b2f8d2190 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f0b3246ff60 RCX: 00007f0b3235cb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200002c0
RBP: 00007f0b323b6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9d4ddf0f R14: 00007f0b2f8d2300 R15: 0000000000022000
irq event stamp: 667
hardirqs last enabled at (677): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (684): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (224): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (219): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
audit: type=1326 audit(1756462448.630:11): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4305 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
SELinux: Context is not valid (left unmapped).
audit: type=1326 audit(1756462449.467:12): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4305 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
audit: type=1326 audit(1756462449.578:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4344 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa0b9250b19 code=0x0
audit: type=1326 audit(1756462449.662:14): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4354 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
audit: type=1326 audit(1756462450.578:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4376 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa0b9250b19 code=0x0
audit: type=1326 audit(1756462450.603:16): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4381 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
Bluetooth: hci0: Opcode 0x0c1a failed: -4
Bluetooth: hci0: Opcode 0x0406 failed: -4
Bluetooth: hci0: Opcode 0x0406 failed: -4
Bluetooth: hci1: Opcode 0x0c1a failed: -4
Bluetooth: hci1: Opcode 0x0406 failed: -4
Bluetooth: hci1: Opcode 0x0406 failed: -4
Bluetooth: hci3: Opcode 0x0c1a failed: -4
Bluetooth: hci3: Opcode 0x0406 failed: -4
Bluetooth: hci3: Opcode 0x0406 failed: -4
Bluetooth: hci2: Opcode 0x0c1a failed: -4
Bluetooth: hci2: Opcode 0x0406 failed: -4
Bluetooth: hci2: Opcode 0x0406 failed: -4
Bluetooth: hci4: Opcode 0x0c1a failed: -4
Bluetooth: hci4: Opcode 0x0406 failed: -4
Bluetooth: hci4: Opcode 0x0406 failed: -4
Bluetooth: hci5: Opcode 0x0c1a failed: -4
Bluetooth: hci5: Opcode 0x0406 failed: -4
Bluetooth: hci5: Opcode 0x0406 failed: -4
Bluetooth: hci6: Opcode 0x0c1a failed: -4
Bluetooth: hci6: Opcode 0x0406 failed: -4
Bluetooth: hci6: Opcode 0x0406 failed: -4
Bluetooth: hci7: Opcode 0x0c1a failed: -4
Bluetooth: hci7: Opcode 0x0406 failed: -4
Bluetooth: hci7: Opcode 0x0406 failed: -4
audit: type=1326 audit(1756462451.559:17): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4414 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fa0b9250b19 code=0x0
kmemleak: Found object by alias at 0x607f1a638da8
CPU: 1 UID: 0 PID: 4411 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
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: 0033:0x7f0b3235cb19
Code: Unable to access opcode bytes at 0x7f0b3235caef.
RSP: 002b:00007fff9d4de138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f0b3235cb19
RDX: 00007f0b3230f72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2d0216d8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff9d4de220
kmemleak: Object (percpu) 0x607f1a638da4 (size 8):
kmemleak: comm "syz-executor.1", pid 4417, jiffies 4294792281
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+0x105/0xaf0
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
audit: type=1326 audit(1756462451.565:18): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4416 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
kmemleak: Cannot insert 0x607f1a638da8 into the object search tree (overlaps existing)
CPU: 1 UID: 0 PID: 4417 Comm: syz-executor.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
Call Trace:
dump_stack_lvl+0xca/0x120
__link_object+0x190/0x210
__create_object+0x48/0x80
pcpu_alloc_noprof+0x87a/0x1170
__percpu_counter_init_many+0x44/0x360
xfrm6_net_init+0x4e/0x1a0
ops_init+0x1e1/0x650
setup_net+0x10d/0x320
copy_net_ns+0x2e3/0x650
create_new_namespaces+0x3f6/0xab0
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
RIP: 0033:0x7f52924e6b19
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:00007f528fa5c188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f52925f9f60 RCX: 00007f52924e6b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000240
RBP: 00007f5292540f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc865a1b8f R14: 00007f528fa5c300 R15: 0000000000022000
kmemleak: Kernel memory leak detector disabled
kmemleak: Object (percpu) 0x607f1a638da4 (size 8):
kmemleak: comm "syz-executor.1", pid 4417, jiffies 4294792281
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+0x105/0xaf0
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
Bluetooth: hci0: command 0x0c1a tx timeout
loop1: detected capacity change from 0 to 512
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop1: detected capacity change from 0 to 512
No source specified
No source specified
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop1: detected capacity change from 0 to 512
No source specified
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
No source specified
Bluetooth: hci1: command 0x0c1a tx timeout
No source specified
Bluetooth: hci7: command 0x0c1a tx timeout
Bluetooth: hci6: command 0x0c1a tx timeout
Bluetooth: hci5: command 0x0c1a tx timeout
Bluetooth: hci4: command 0x0c1a tx timeout
Bluetooth: hci2: command 0x0c1a tx timeout
Bluetooth: hci3: command 0x0c1a tx timeout
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
cgroup: name respecified
cgroup: name respecified
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop4: detected capacity change from 0 to 512
cgroup: name respecified
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
cgroup: name respecified
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
cgroup: name respecified
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
Bluetooth: hci0: command 0x0c1a tx timeout
Bluetooth: hci1: command 0x0c1a tx timeout
Bluetooth: hci3: command 0x0c1a tx timeout
Bluetooth: hci2: command 0x0c1a tx timeout
Bluetooth: hci4: command 0x0c1a tx timeout
Bluetooth: hci5: command 0x0c1a tx timeout
Bluetooth: hci6: command 0x0c1a tx timeout
Bluetooth: hci7: command 0x0c1a tx timeout
program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO
audit: type=1326 audit(1756462455.930:19): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4943 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO
Bluetooth: hci0: command 0x0c1a tx timeout
audit: type=1326 audit(1756462456.759:20): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4943 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
A link change request failed with some changes committed already. Interface sit0 may have been left with an inconsistent configuration, please check.
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
A link change request failed with some changes committed already. Interface sit0 may have been left with an inconsistent configuration, please check.
audit: type=1326 audit(1756462456.862:21): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4962 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
program syz-executor.5 is using a deprecated SCSI ioctl, please convert it to SG_IO
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
A link change request failed with some changes committed already. Interface sit0 may have been left with an inconsistent configuration, please check.
Bluetooth: hci1: command 0x0c1a tx timeout
Bluetooth: hci7: command 0x0c1a tx timeout
Bluetooth: hci6: command 0x0c1a tx timeout
Bluetooth: hci5: command 0x0c1a tx timeout
Bluetooth: hci4: command 0x0c1a tx timeout
Bluetooth: hci2: command 0x0c1a tx timeout
Bluetooth: hci3: command 0x0c1a tx timeout
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
A link change request failed with some changes committed already. Interface sit0 may have been left with an inconsistent configuration, please check.
audit: type=1326 audit(1756462457.778:22): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=5000 comm="syz-executor.4" exe="/syz-executor.4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f9ed94d6b19 code=0x0
netlink: 'syz-executor.0': attribute type 10 has an invalid length.
A link change request failed with some changes committed already. Interface sit0 may have been left with an inconsistent configuration, please check.