------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.6/9854
Modules linked in:
CPU: 1 UID: 0 PID: 9854 Comm: syz-executor.6 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+0x323/0x3d0
Code: 00 01 0f 98 c3 31 ff 89 de e8 29 1f ab ff 84 db 75 07 5b 5d e9 4e 24 ab ff e8 49 24 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
RSP: 0018:ffff88804404fe08 EFLAGS: 00010212
RAX: 0000000000000d26 RBX: ffff8880074a9c30 RCX: ffffc90011e7c000
RDX: 0000000000040000 RSI: ffffffff81c9aaf2 RDI: 0000000000000001
RBP: ffff88801e79a401 R08: 0000000000000001 R09: ffffed1003cf3497
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804b6c8e00
R13: 0000000000000000 R14: ffff888013c6b780 R15: ffff88804404fe98
FS: 00007f5dc3d49700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001940 CR3: 000000000deb4000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5dc67d5107
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:00007f5dc3d49128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5dc68e6f60 RCX: 00007f5dc67d5107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6e0d5c7f R14: 00007f5dc3d49300 R15: 0000000000022000
irq event stamp: 745
hardirqs last enabled at (753): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (762): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (700): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (665): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x331/0x3d0, CPU#1: syz-executor.6/9854
Modules linked in:
CPU: 1 UID: 0 PID: 9854 Comm: syz-executor.6 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+0x331/0x3d0
Code: 84 db 75 07 5b 5d e9 4e 24 ab ff e8 49 24 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
RSP: 0018:ffff88804404fe08 EFLAGS: 00010212
RAX: 000000000001b817 RBX: ffff8880074a9c30 RCX: ffffc90011e7c000
RDX: 0000000000040000 RSI: ffffffff81c9ab00 RDI: 0000000000000001
RBP: ffff88801f675101 R08: 0000000000000001 R09: ffffed1003ecea6c
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804b6c8e00
R13: 0000000000000000 R14: ffff888013c6b780 R15: ffff88804404fe98
FS: 00007f5dc3d49700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001940 CR3: 000000000deb4000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5dc67d5107
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:00007f5dc3d49128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5dc68e6f60 RCX: 00007f5dc67d5107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6e0d5c7f R14: 00007f5dc3d49300 R15: 0000000000022000
irq event stamp: 2253
hardirqs last enabled at (2261): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2270): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2284): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2279): [] __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.6/9854
Modules linked in:
CPU: 1 UID: 0 PID: 9854 Comm: syz-executor.6 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
------------[ cut here ]------------
Tainted: [W]=WARN
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#0: syz-executor.6/9867
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Modules linked in:
RIP: 0010:nsproxy_ns_active_get+0x33f/0x3d0
CPU: 0 UID: 0 PID: 9867 Comm: syz-executor.6 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
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
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RSP: 0018:ffff88804404fe08 EFLAGS: 00010212
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
RAX: 0000000000036aa2 RBX: ffff8880074a9c30 RCX: ffffc90011e7c000
RSP: 0018:ffff888047f07e08 EFLAGS: 00010212
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RAX: 0000000000000895 RBX: ffff8880097c3f70 RCX: ffffc9001227e000
RBP: ffff88801c57a001 R08: 0000000000000001 R09: ffffed10038af541
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff888016e5b801 R08: 0000000000000001 R09: ffffed1002dcb717
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804b6c8e00
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804b6c8e00
R13: 0000000000000000 R14: ffff8880161d3780 R15: ffff888047f07e98
R13: 0000000000000000 R14: ffff888013c6b780 R15: ffff88804404fe98
FS: 00007f5dc3d07700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
FS: 00007f5dc3d49700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dc3d07718 CR3: 000000000deb4000 CR4: 0000000000350ef0
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Call Trace:
CR2: 0000000020001940 CR3: 000000000deb4000 CR4: 0000000000350ef0
switch_task_namespaces+0x3d/0x110
Call Trace:
__do_sys_setns+0x6b0/0x19a0
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5dc67d5107
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
do_syscall_64+0xbf/0x430
RSP: 002b:00007f5dc3d07128 EFLAGS: 00000246
entry_SYSCALL_64_after_hwframe+0x77/0x7f
ORIG_RAX: 0000000000000134
RIP: 0033:0x7f5dc67d5107
RAX: ffffffffffffffda RBX: 00007f5dc68e70e0 RCX: 00007f5dc67d5107
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
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RSP: 002b:00007f5dc3d49128 EFLAGS: 00000246
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
ORIG_RAX: 0000000000000134
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f5dc68e6f60 RCX: 00007f5dc67d5107
R13: 00007ffc6e0d5c7f R14: 00007f5dc3d07300 R15: 0000000000022000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
irq event stamp: 477
hardirqs last enabled at (483): [] vprintk_emit+0x650/0x690
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
hardirqs last disabled at (492): [] console_flush_one_record+0x903/0xb20
R13: 00007ffc6e0d5c7f R14: 00007f5dc3d49300 R15: 0000000000022000
softirqs last enabled at (344): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (339): [] __irq_exit_rcu+0xc4/0x100
irq event stamp: 2707
hardirqs last enabled at (2713): [] vprintk_emit+0x650/0x690
---[ end trace 0000000000000000 ]---
hardirqs last disabled at (3618): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (3862): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (3627): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: 73 01 jae 0x3
2: c3 retq
3: 48 c7 c1 bc ff ff ff mov $0xffffffffffffffbc,%rcx
a: f7 d8 neg %eax
c: 64 89 01 mov %eax,%fs:(%rcx)
f: 48 83 c8 ff or $0xffffffffffffffff,%rax
13: c3 retq
14: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
1b: 00 00 00
1e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
23: b8 34 01 00 00 mov $0x134,%eax
28: 0f 05 syscall
* 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction
30: 73 01 jae 0x33
32: c3 retq
33: 48 c7 c1 bc ff ff ff mov $0xffffffffffffffbc,%rcx
3a: f7 d8 neg %eax
3c: 64 89 01 mov %eax,%fs:(%rcx)
3f: 48 rex.W