------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.2/160117
Modules linked in:
CPU: 1 UID: 0 PID: 160117 Comm: syz-executor.2 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+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:ffff88805a9f7e20 EFLAGS: 00010212
RAX: 0000000000001814 RBX: ffff8880097c3340 RCX: ffffc90002ffd000
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff88800948aa01 R08: 0000000000000001 R09: ffffed1001291557
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880097c3340
FS:  00007f10f9437700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000340 CR3: 0000000055f43000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 ksys_unshare+0x520/0xa10
 __x64_sys_unshare+0x31/0x40
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10fbec1b19
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:00007f10f9437188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f10fbfd4f60 RCX: 00007f10fbec1b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000008000000
RBP: 00007f10fbf1bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5d8db49f R14: 00007f10f9437300 R15: 0000000000022000
 </TASK>
irq event stamp: 777
hardirqs last  enabled at (785): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (794): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (810): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (803): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x369/0x3d0, CPU#1: syz-executor.2/160117
Modules linked in:
CPU: 1 UID: 0 PID: 160117 Comm: syz-executor.2 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+0x369/0x3d0
Code: 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 e8 ea 23 ab ff 90 0f 0b 90 e9 31 ff ff ff
RSP: 0018:ffff88805a9f7e20 EFLAGS: 00010216
RAX: 000000000001de0d RBX: ffff8880097c3340 RCX: ffffc90002ffd000
RDX: 0000000000040000 RSI: ffffffff81c9ab38 RDI: 0000000000000001
RBP: ffff888017180001 R08: 0000000000000001 R09: ffffed1002e30042
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880097c3340
FS:  00007f10f9437700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000340 CR3: 0000000055f43000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 ksys_unshare+0x520/0xa10
 __x64_sys_unshare+0x31/0x40
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f10fbec1b19
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:00007f10f9437188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f10fbfd4f60 RCX: 00007f10fbec1b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000008000000
RBP: 00007f10fbf1bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5d8db49f R14: 00007f10f9437300 R15: 0000000000022000
 </TASK>
irq event stamp: 1199
hardirqs last  enabled at (1209): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1216): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (810): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (803): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.2/160539
Modules linked in:
CPU: 1 UID: 0 PID: 160539 Comm: syz-executor.2 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+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:ffff888062a17e08 EFLAGS: 00010212
RAX: 000000000000010f RBX: ffff8880097c3ea0 RCX: ffffc90002ffd000
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RBP: ffff88801b8de001 R08: 0000000000000001 R09: ffffed100371bd41
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88805ca07dc0
R13: 0000000000000000 R14: ffff8880174b5340 R15: ffff888062a17e98
FS:  00007f10f9437700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d121000 CR3: 0000000049dee000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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: 0033:0x7f10fbec1b19
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:00007f10f9437188 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f10fbfd4f60 RCX: 00007f10fbec1b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f10fbf1bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5d8db49f R14: 00007f10f9437300 R15: 0000000000022000
 </TASK>
irq event stamp: 1089
hardirqs last  enabled at (1099): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1108): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (830): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (811): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
mac80211_hwsim hwsim15 wlan1: entered promiscuous mode
mac80211_hwsim hwsim15 wlan1: left promiscuous mode
mac80211_hwsim hwsim15 wlan1: entered promiscuous mode
mac80211_hwsim hwsim15 wlan1: left promiscuous mode