------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#0: syz-executor.5/14973 Modules linked in: CPU: 0 UID: 0 PID: 14973 Comm: syz-executor.5 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:ffff8880155c7e08 EFLAGS: 00010212 RAX: 0000000000000805 RBX: ffff8880138fce38 RCX: ffffc900045dc000 RDX: 0000000000040000 RSI: ffffffff81c9aaf2 RDI: 0000000000000001 RBP: ffff888016ab0401 R08: 0000000000000001 R09: ffffed1002d56097 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013efc000 R13: 0000000000000000 R14: ffff888016a11bc0 R15: ffff8880155c7e98 FS: 00007f2878ea0700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2878ea0718 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878ea0128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f287ba5f020 RCX: 00007f287b94d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff02a4da3f R14: 00007f2878ea0300 R15: 0000000000022000 irq event stamp: 1849 hardirqs last enabled at (1859): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1884): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1882): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1867): [] __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#0: syz-executor.5/14973 Modules linked in: CPU: 0 UID: 0 PID: 14973 Comm: syz-executor.5 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:ffff8880155c7e08 EFLAGS: 00010212 RAX: 000000000001afcc RBX: ffff8880138fce38 RCX: ffffc900045dc000 RDX: 0000000000040000 RSI: ffffffff81c9ab00 RDI: 0000000000000001 RBP: ffff888019fee201 R08: 0000000000000001 R09: ffffed10033fdc8e R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013efc000 R13: 0000000000000000 R14: ffff888016a11bc0 R15: ffff8880155c7e98 FS: 00007f2878ea0700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2878ea0718 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878ea0128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f287ba5f020 RCX: 00007f287b94d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff02a4da3f R14: 00007f2878ea0300 R15: 0000000000022000 irq event stamp: 2293 hardirqs last enabled at (2301): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2314): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2026): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2019): [] __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#0: syz-executor.5/14973 Modules linked in: CPU: 0 UID: 0 PID: 14973 Comm: syz-executor.5 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:ffff8880155c7e08 EFLAGS: 00010216 RAX: 0000000000035ede RBX: ffff8880138fce38 RCX: ffffc900045dc000 RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001 RBP: ffff88801730e001 R08: 0000000000000001 R09: ffffed1002e61d41 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013efc000 R13: 0000000000000000 R14: ffff888016a11bc0 R15: ffff8880155c7e98 FS: 00007f2878ea0700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2878ea0718 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878ea0128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f287ba5f020 RCX: 00007f287b94d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff02a4da3f R14: 00007f2878ea0300 R15: 0000000000022000 irq event stamp: 2759 hardirqs last enabled at (2767): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2776): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2592): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2547): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x34d/0x3d0, CPU#0: syz-executor.5/14973 Modules linked in: CPU: 0 UID: 0 PID: 14973 Comm: syz-executor.5 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+0x34d/0x3d0 Code: 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 e8 06 24 ab ff 90 0f 0b 90 e9 8b fe ff ff RSP: 0018:ffff8880155c7e08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880138fce38 RCX: ffffc900045dc000 RDX: 0000000000040000 RSI: ffffffff81c9ab1c RDI: 0000000000000001 RBP: ffff888013c11001 R08: 0000000000000001 R09: ffffed1002782231 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013efc000 R13: 0000000000000000 R14: ffff888016a11bc0 R15: ffff8880155c7e98 FS: 00007f2878ea0700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2878ea0718 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878ea0128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f287ba5f020 RCX: 00007f287b94d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff02a4da3f R14: 00007f2878ea0300 R15: 0000000000022000 irq event stamp: 4161 hardirqs last enabled at (4169): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (4178): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4040): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3559): [] __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#0: syz-executor.5/14973 Modules linked in: CPU: 0 UID: 0 PID: 14973 Comm: syz-executor.5 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+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:ffff8880155c7e08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880138fce38 RCX: ffffc900045dc000 RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001 RBP: ffff8880175fde01 R08: 0000000000000001 R09: ffffed1002ebfbd7 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013efc000 R13: 0000000000000000 R14: ffff888016a11bc0 R15: ffff8880155c7e98 FS: 00007f2878ea0700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2878ea0718 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878ea0128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f287ba5f020 RCX: 00007f287b94d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff02a4da3f R14: 00007f2878ea0300 R15: 0000000000022000 irq event stamp: 4585 hardirqs last enabled at (4593): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (4602): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4354): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4623): [] __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#0: syz-executor.5/15062 Modules linked in: CPU: 0 UID: 0 PID: 15062 Comm: syz-executor.5 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:ffff888047c6fe08 EFLAGS: 00010206 RAX: 000000000001b6d0 RBX: ffff8880138fc8f0 RCX: ffffc90004de0000 RDX: 0000000000040000 RSI: ffffffff81c9ab38 RDI: 0000000000000001 RBP: ffff8880176d6101 R08: 0000000000000001 R09: ffffed1002edac62 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800f1fba40 R13: 0000000000000000 R14: ffff88800b6bd340 R15: ffff888047c6fe98 FS: 00007f2878e7f700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555cc0d098 CR3: 0000000046d34000 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: 0033:0x7f287b94d107 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:00007f2878e7f128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f287b94d107 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000009 RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2878e7f6bc R13: 000000000000000e R14: 00007f2878e7f300 R15: 0000000000022000 irq event stamp: 487 hardirqs last enabled at (501): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (508): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (524): [] 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 alloc_pid+0xcc8/0x1150, CPU#0: syz-executor.5/10715 Modules linked in: CPU: 0 UID: 0 PID: 10715 Comm: syz-executor.5 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:alloc_pid+0xcc8/0x1150 Code: 00 00 00 e8 6a 58 6f 00 f0 83 83 68 01 00 00 01 0f 98 c3 31 ff 89 de e8 86 a2 31 00 84 db 0f 84 bc f3 ff ff e8 a9 a7 31 00 90 <0f> 0b 90 e9 ae f3 ff ff e8 9b a7 31 00 90 48 c7 c6 40 16 e7 84 48 RSP: 0018:ffff88800e597ab0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888013c11001 RCX: ffffffff8143277a RDX: ffff88801b3e3780 RSI: ffffffff81432787 RDI: 0000000000000001 RBP: ffff88806ce35f60 R08: 0000000000000001 R09: ffffed1002782231 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88806ce35f88 R13: ffffffff85d02760 R14: ffff888016dfb680 R15: ffff888013c11020 FS: 000055555cc0b400(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b8d30d990 CR3: 0000000047dd2000 CR4: 0000000000350ef0 Call Trace: copy_process+0x3be1/0x72a0 kernel_clone+0xea/0x7f0 __do_sys_clone+0xce/0x120 do_syscall_64+0xbf/0x430 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f287b94a10b Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00 RSP: 002b:00007fff02a4dc70 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f287b94a10b RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 000055555cc0b400 R10: 000055555cc0b6d0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff02a4dd50 irq event stamp: 275387 hardirqs last enabled at (275395): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (275404): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (275418): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (275413): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]---