------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.3/12398
Modules linked in:
CPU: 1 UID: 0 PID: 12398 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251107 #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 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff88805484fe08 EFLAGS: 00010212
RAX: 0000000000000ce7 RBX: ffff88804d8089c0 RCX: ffffc90011c6f000
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RBP: ffff888017ae0001 R08: 0000000000000001 R09: ffffed1002f5c141
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801baf1180
R13: 0000000000000000 R14: ffff88801b439bc0 R15: ffff88805484fe98
FS:  00007f9e8ba93700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e8e62d000 CR3: 000000005192f000 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: 0033:0x7f9e8e51f107
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:00007f9e8ba93128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f9e8e630f60 RCX: 00007f9e8e51f107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcca90e06f R14: 00007f9e8ba93300 R15: 0000000000022000
 </TASK>
irq event stamp: 541
hardirqs last  enabled at (549): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (558): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (250): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (213): [<ffffffff813bc824>] __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.3/12398
Modules linked in:
CPU: 1 UID: 0 PID: 12398 Comm: syz-executor.3 Tainted: G        W           6.18.0-rc4-next-20251107 #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 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff88805484fe08 EFLAGS: 00010216
RAX: 000000000001b79d RBX: ffff88804d8089c0 RCX: ffffc90011c6f000
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff888016801e01 R08: 0000000000000001 R09: ffffed1002d003d7
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801baf1180
R13: 0000000000000000 R14: ffff88801b439bc0 R15: ffff88805484fe98
FS:  00007f9e8ba93700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e8e62d000 CR3: 000000005192f000 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: 0033:0x7f9e8e51f107
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:00007f9e8ba93128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f9e8e630f60 RCX: 00007f9e8e51f107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcca90e06f R14: 00007f9e8ba93300 R15: 0000000000022000
 </TASK>
irq event stamp: 949
hardirqs last  enabled at (957): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (966): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (980): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (975): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs warning (device sda): ext4_group_extend:1862: can't shrink FS - resize aborted
EXT4-fs warning (device sda): ext4_group_extend:1862: can't shrink FS - resize aborted
EXT4-fs warning (device sda): ext4_group_extend:1862: can't shrink FS - resize aborted
EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further
EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further
EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further
EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further
EXT4-fs warning (device sda): ext4_group_extend:1862: can't shrink FS - resize aborted
EXT4-fs warning (device sda): ext4_group_extend:1862: can't shrink FS - resize aborted