------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.6/231639
Modules linked in:
CPU: 1 UID: 0 PID: 231639 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+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:ffff888048007e20 EFLAGS: 00010212
RAX: 0000000000002587 RBX: ffff88801365bdd0 RCX: ffffc90002f34000
RDX: 0000000000040000 RSI: ffffffff81c9577a RDI: 0000000000000001
RBP: ffff888051d7c201 R08: 0000000000000001 R09: ffffed100a3af857
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801365bdd0
FS:  00007fa05a4a6700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a028c7000 CR3: 000000004c6a6000 CR4: 0000000000350ef0
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: 0033:0x7fa05cf30b19
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:00007fa05a4a6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fa05d043f60 RCX: 00007fa05cf30b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000008000000
RBP: 00007fa05cf8af6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe023c080f R14: 00007fa05a4a6300 R15: 0000000000022000
 </TASK>
irq event stamp: 685
hardirqs last  enabled at (695): [<ffffffff81548228>] __up_console_sem+0x78/0x80
hardirqs last disabled at (702): [<ffffffff8154820d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (666): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (655): [<ffffffff813bc424>] __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.6/231639
Modules linked in:
CPU: 1 UID: 0 PID: 231639 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+0x369/0x3d0
Code: 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 e8 5a 52 ab ff 90 0f 0b 90 e9 31 ff ff ff
RSP: 0018:ffff888048007e20 EFLAGS: 00010212
RAX: 00000000000205a2 RBX: ffff88801365bdd0 RCX: ffffc90002f34000
RDX: 0000000000040000 RSI: ffffffff81c95788 RDI: 0000000000000001
RBP: ffff888018ab0001 R08: 0000000000000001 R09: ffffed1003156042
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801365bdd0
FS:  00007fa05a4a6700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a028c7000 CR3: 000000004c6a6000 CR4: 0000000000350ef0
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: 0033:0x7fa05cf30b19
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:00007fa05a4a6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fa05d043f60 RCX: 00007fa05cf30b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000008000000
RBP: 00007fa05cf8af6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe023c080f R14: 00007fa05a4a6300 R15: 0000000000022000
 </TASK>
irq event stamp: 1093
hardirqs last  enabled at (1101): [<ffffffff81548228>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1110): [<ffffffff8154820d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (924): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (919): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
cgroup2: Unknown parameter 'rlimit'
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2
Bluetooth: hci7: unexpected cc 0x0c03 length: 249 > 1
Bluetooth: hci7: unexpected cc 0x1003 length: 249 > 9
Bluetooth: hci7: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci7: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci7: unexpected cc 0x0c38 length: 249 > 2