------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.6/9928
Modules linked in:
CPU: 1 UID: 0 PID: 9928 Comm: syz-executor.6 Not tainted 6.18.0-rc4-next-20251110 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 ae 52 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 a0 52 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 92 52 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 84 52 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff88804d117e08 EFLAGS: 00010212
RAX: 0000000000000d4d RBX: ffff88800eb3bd68 RCX: ffffc90003c07000
RDX: 0000000000040000 RSI: ffffffff81c9575e RDI: 0000000000000001
RBP: ffff888016efe001 R08: 0000000000000001 R09: ffffed1002ddfd41
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017459500
R13: 0000000000000000 R14: ffff88804bf15340 R15: ffff88804d117e98
FS:  00007f3877ebf700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f387aa5d018 CR3: 000000001f5f2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f387a94b107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 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:00007f3877ebf128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f387aa5cf60 RCX: 00007f387a94b107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcb79f71cf R14: 00007f3877ebf300 R15: 0000000000022000
 </TASK>
irq event stamp: 527
hardirqs last  enabled at (535): [<ffffffff81548228>] __up_console_sem+0x78/0x80
hardirqs last disabled at (544): [<ffffffff8154820d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (200): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (189): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.6/9928
Modules linked in:
CPU: 1 UID: 0 PID: 9928 Comm: syz-executor.6 Tainted: G        W           6.18.0-rc4-next-20251110 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x35b/0x3d0
Code: 0f 0b 90 e9 92 fd ff ff e8 92 52 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 84 52 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 76 52 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 68 52 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff88804d117e08 EFLAGS: 00010216
RAX: 000000000001d6a4 RBX: ffff88800eb3bd68 RCX: ffffc90003c07000
RDX: 0000000000040000 RSI: ffffffff81c9577a RDI: 0000000000000001
RBP: ffff8880094ebc01 R08: 0000000000000001 R09: ffffed100129d797
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017459500
R13: 0000000000000000 R14: ffff88804bf15340 R15: ffff88804d117e98
FS:  00007f3877ebf700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f387aa5d018 CR3: 000000001f5f2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f387a94b107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 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:00007f3877ebf128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f387aa5cf60 RCX: 00007f387a94b107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcb79f71cf R14: 00007f3877ebf300 R15: 0000000000022000
 </TASK>
irq event stamp: 1361
hardirqs last  enabled at (1371): [<ffffffff81548228>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1380): [<ffffffff8154820d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1228): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (1223): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unsupported parameter 'huge'
tmpfs: Unknown parameter './file0/file0'
tmpfs: Unsupported parameter 'huge'
loop0: detected capacity change from 0 to 184
tmpfs: Unsupported parameter 'huge'
loop0: detected capacity change from 0 to 184
loop1: detected capacity change from 0 to 184
loop0: detected capacity change from 0 to 184
loop1: detected capacity change from 0 to 184
loop0: detected capacity change from 0 to 184
loop1: detected capacity change from 0 to 184
Bluetooth: MGMT ver 1.23
random: crng reseeded on system resumption
random: crng reseeded on system resumption
loop4: detected capacity change from 0 to 512
random: crng reseeded on system resumption
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
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.
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
random: crng reseeded on system resumption
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
random: crng reseeded on system resumption
random: crng reseeded on system resumption
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
random: crng reseeded on system resumption
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
random: crng reseeded on system resumption
loop4: detected capacity change from 0 to 512
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
random: crng reseeded on system resumption
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
Bluetooth: hci0: Opcode 0x0c03 failed: -4
Bluetooth: hci0: Opcode 0x0c03 failed: -4
Bluetooth: hci0: Opcode 0x0c03 failed: -4