------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.3/16608 Modules linked in: CPU: 1 UID: 0 PID: 16608 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251104 #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 f9 d7 ab ff 84 db 75 07 5b 5d e9 1e dd ab ff e8 19 dd ab ff 90 0f 0b 90 eb ee e8 0e dd ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 00 dd ab ff 90 0f 0b 90 e9 92 fd ff ff RSP: 0018:ffff88804a8cfe08 EFLAGS: 00010216 RAX: 0000000000000d0a RBX: ffff8880097c07b8 RCX: ffffc90000a06000 RDX: 0000000000040000 RSI: ffffffff81c8ab62 RDI: 0000000000000001 RBP: ffff8880199f5c01 R08: 0000000000000001 R09: ffffed100333eb97 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166776c0 R13: 0000000000000000 R14: ffff88804eee3780 R15: ffff88804a8cfe98 FS: 00007f0898d6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002023a000 CR3: 000000004edea000 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: 0033:0x7f089b7fa107 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:00007f0898d6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f089b90bf60 RCX: 00007f089b7fa107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe218c66f R14: 00007f0898d6e300 R15: 0000000000022000 irq event stamp: 659 hardirqs last enabled at (667): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (676): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (522): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (517): [] __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.3/16608 Modules linked in: CPU: 1 UID: 0 PID: 16608 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251104 #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 1e dd ab ff e8 19 dd ab ff 90 0f 0b 90 eb ee e8 0e dd ab ff 90 0f 0b 90 e9 3f fd ff ff e8 00 dd ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 f2 dc ab ff 90 0f 0b 90 e9 e5 fd ff ff RSP: 0018:ffff88804a8cfe08 EFLAGS: 00010212 RAX: 000000000001c1ea RBX: ffff8880097c07b8 RCX: ffffc90000a06000 RDX: 0000000000040000 RSI: ffffffff81c8ab70 RDI: 0000000000000001 RBP: ffff888015d44501 R08: 0000000000000001 R09: ffffed1002ba8900 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166776c0 R13: 0000000000000000 R14: ffff88804eee3780 R15: ffff88804a8cfe98 FS: 00007f0898d6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002023a000 CR3: 000000004edea000 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: 0033:0x7f089b7fa107 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:00007f0898d6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f089b90bf60 RCX: 00007f089b7fa107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe218c66f R14: 00007f0898d6e300 R15: 0000000000022000 irq event stamp: 1959 hardirqs last enabled at (1967): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1978): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1914): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1909): [] __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.3/16608 Modules linked in: CPU: 1 UID: 0 PID: 16608 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251104 #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 0e dd ab ff 90 0f 0b 90 e9 3f fd ff ff e8 00 dd ab ff 90 0f 0b 90 e9 92 fd ff ff e8 f2 dc ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 e4 dc ab ff 90 0f 0b 90 e9 38 fe ff ff RSP: 0018:ffff88804a8cfe08 EFLAGS: 00010202 RAX: 0000000000037e50 RBX: ffff8880097c07b8 RCX: ffffc90000a06000 RDX: 0000000000040000 RSI: ffffffff81c8ab7e RDI: 0000000000000001 RBP: ffff88800ee86001 R08: 0000000000000001 R09: ffffed1001dd0d41 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166776c0 R13: 0000000000000000 R14: ffff88804eee3780 R15: ffff88804a8cfe98 FS: 00007f0898d6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002023a000 CR3: 000000004edea000 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: 0033:0x7f089b7fa107 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:00007f0898d6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f089b90bf60 RCX: 00007f089b7fa107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe218c66f R14: 00007f0898d6e300 R15: 0000000000022000 irq event stamp: 2407 hardirqs last enabled at (2415): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2424): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2104): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2093): [] __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.3/16608 Modules linked in: CPU: 1 UID: 0 PID: 16608 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251104 #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 f2 dc ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 e4 dc ab ff 90 0f 0b 90 e9 38 fe ff ff e8 d6 dc ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 c8 dc ab ff 90 0f 0b 90 e9 de fe ff ff RSP: 0018:ffff88804a8cfe08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880097c07b8 RCX: ffffc90000a06000 RDX: 0000000000040000 RSI: ffffffff81c8ab9a RDI: 0000000000000001 RBP: ffff888009842c01 R08: 0000000000000001 R09: ffffed1001308597 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166776c0 R13: 0000000000000000 R14: ffff88804eee3780 R15: ffff88804a8cfe98 FS: 00007f0898d6e700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002023a000 CR3: 000000004edea000 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: 0033:0x7f089b7fa107 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:00007f0898d6e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f089b90bf60 RCX: 00007f089b7fa107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe218c66f R14: 00007f0898d6e300 R15: 0000000000022000 irq event stamp: 3693 hardirqs last enabled at (3709): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (3718): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (3706): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3701): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]---