------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.1/15847 Modules linked in: CPU: 0 UID: 0 PID: 15847 Comm: syz-executor.1 Not tainted 6.18.0-rc4-next-20251103 #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 2e e2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 20 e2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 12 e2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff RSP: 0018:ffff888049077e08 EFLAGS: 00010216 RAX: 000000000000147c RBX: ffff8880437aa340 RCX: ffffc9000078d000 RDX: 0000000000040000 RSI: ffffffff81c89d0e RDI: 0000000000000001 RBP: ffff88801a15c001 R08: 0000000000000001 R09: ffffed100342b941 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017480380 R13: 0000000000000000 R14: ffff88804d033780 R15: ffff888049077e98 FS: 00007f5bda29c700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5bdcd7ff82 CR3: 00000000453de000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5bdcd28107 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:00007f5bda29c128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f5bdce39f60 RCX: 00007f5bdcd28107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd8a917b6f R14: 00007f5bda29c300 R15: 0000000000022000 irq event stamp: 543 hardirqs last enabled at (559): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (568): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (556): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (551): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#0: syz-executor.1/15847 Modules linked in: CPU: 0 UID: 0 PID: 15847 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251103 #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 12 e2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 f6 e1 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 e8 e1 ab ff 90 0f 0b 90 e9 de fe ff ff RSP: 0018:ffff888049077e08 EFLAGS: 00010212 RAX: 000000000001c533 RBX: ffff8880437aa340 RCX: ffffc9000078d000 RDX: 0000000000040000 RSI: ffffffff81c89d2a RDI: 0000000000000001 RBP: ffff888009487401 R08: 0000000000000001 R09: ffffed1001290e97 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888017480380 R13: 0000000000000000 R14: ffff88804d033780 R15: ffff888049077e98 FS: 00007f5bda29c700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5bdcd7ff82 CR3: 00000000453de000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5bdcd28107 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:00007f5bda29c128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f5bdce39f60 RCX: 00007f5bdcd28107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd8a917b6f R14: 00007f5bda29c300 R15: 0000000000022000 irq event stamp: 1005 hardirqs last enabled at (1013): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1022): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (556): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (551): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x369/0x3d0, CPU#1: syz-executor.1/15847 Modules linked in: CPU: 1 UID: 0 PID: 15847 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251103 #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 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 f6 e1 ab ff 90 0f 0b 90 e9 8b fe ff ff e8 e8 e1 ab ff 90 <0f> 0b 90 e9 de fe ff ff e8 da e1 ab ff 90 0f 0b 90 e9 31 ff ff ff RSP: 0018:ffff888049077e08 EFLAGS: 00010216 RAX: 000000000003ecc4 RBX: ffff8880461cfb60 RCX: ffffc9000078d000 RDX: 0000000000040000 RSI: ffffffff81c89d38 RDI: 0000000000000001 RBP: ffff88801ba89801 R08: 0000000000000001 R09: ffffed100375134a R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800cfa5a40 R13: 0000000000000000 R14: ffff88804d033780 R15: ffff888049077e98 FS: 00007f5bda29c700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe5e6255b90 CR3: 00000000453de000 CR4: 0000000000350ef0 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5bdcd28107 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:00007f5bda29c128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5bdcd28107 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5bda29c6bc R13: 000000000000000e R14: 00007f5bda29c300 R15: 0000000000022000 irq event stamp: 2405 hardirqs last enabled at (2413): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2486): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2832): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2843): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- audit: type=1326 audit(1762157281.782:54): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=15905 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcf88779b19 code=0x0 audit: type=1326 audit(1762157282.607:55): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=15905 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcf88779b19 code=0x0 audit: type=1326 audit(1762157282.757:56): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16024 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcf88779b19 code=0x0 audit: type=1326 audit(1762157283.700:57): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16037 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcf88779b19 code=0x0 audit: type=1326 audit(1762157283.866:58): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16046 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f710e068b19 code=0x0 audit: type=1326 audit(1762157284.800:59): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16180 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcf88779b19 code=0x0 audit: type=1326 audit(1762157284.825:60): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16182 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f710e068b19 code=0x0 audit: type=1326 audit(1762157285.792:61): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16213 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f710e068b19 code=0x0 cgroup: fork rejected by pids controller in /syz3 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. cgroup: Invalid name cgroup: Invalid name