------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.6/9624 Modules linked in: CPU: 1 UID: 0 PID: 9624 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+0x323/0x3d0 Code: 00 01 0f 98 c3 31 ff 89 de e8 99 4d ab ff 84 db 75 07 5b 5d e9 be 52 ab ff e8 b9 52 ab ff 90 0f 0b 90 eb ee e8 ae 52 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 a0 52 ab ff 90 0f 0b 90 e9 92 fd ff ff RSP: 0018:ffff88804d90fe08 EFLAGS: 00010212 RAX: 000000000000081a RBX: ffff88804b60a888 RCX: ffffc9000a065000 RDX: 0000000000040000 RSI: ffffffff81c95742 RDI: 0000000000000001 RBP: ffff888009421c01 R08: 0000000000000001 R09: ffffed1001284397 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ca48e00 R13: 0000000000000000 R14: ffff88804c928000 R15: ffff88804d90fe98 FS: 00007f63dd3d8700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63dd3b7718 CR3: 00000000171d5000 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: 0033:0x7f63dfe85107 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:00007f63dd3d8128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f63dff97020 RCX: 00007f63dfe85107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa737c14f R14: 00007f63dd3d8300 R15: 0000000000022000 irq event stamp: 1201 hardirqs last enabled at (1209): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1218): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1108): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (811): [] __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.6/9624 Modules linked in: CPU: 1 UID: 0 PID: 9624 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+0x331/0x3d0 Code: 84 db 75 07 5b 5d e9 be 52 ab ff e8 b9 52 ab ff 90 0f 0b 90 eb ee e8 ae 52 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 a0 52 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 92 52 ab ff 90 0f 0b 90 e9 e5 fd ff ff RSP: 0018:ffff88804d90fe08 EFLAGS: 00010212 RAX: 000000000001b446 RBX: ffff88804b60a888 RCX: ffffc9000a065000 RDX: 0000000000040000 RSI: ffffffff81c95750 RDI: 0000000000000001 RBP: ffff8880177b4501 R08: 0000000000000001 R09: ffffed1002ef6900 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ca48e00 R13: 0000000000000000 R14: ffff88804c928000 R15: ffff88804d90fe98 FS: 00007f63dd3d8700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63dd3b7718 CR3: 00000000171d5000 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: 0033:0x7f63dfe85107 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:00007f63dd3d8128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f63dff97020 RCX: 00007f63dfe85107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa737c14f R14: 00007f63dd3d8300 R15: 0000000000022000 irq event stamp: 1609 hardirqs last enabled at (1617): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1626): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1518): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1503): [] __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.6/9624 Modules linked in: CPU: 1 UID: 0 PID: 9624 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+0x33f/0x3d0 Code: ab ff 90 0f 0b 90 eb ee e8 ae 52 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 a0 52 ab ff 90 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 RSP: 0018:ffff88804d90fe08 EFLAGS: 00010216 RAX: 00000000000367bc RBX: ffff88804b60a888 RCX: ffffc9000a065000 RDX: 0000000000040000 RSI: ffffffff81c9575e RDI: 0000000000000001 RBP: ffff8880168e4001 R08: 0000000000000001 R09: ffffed1002d1c941 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ca48e00 R13: 0000000000000000 R14: ffff88804c928000 R15: ffff88804d90fe98 FS: 00007f63dd3d8700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63dd3b7718 CR3: 00000000171d5000 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: 0033:0x7f63dfe85107 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:00007f63dd3d8128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f63dff97020 RCX: 00007f63dfe85107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa737c14f R14: 00007f63dd3d8300 R15: 0000000000022000 irq event stamp: 2009 hardirqs last enabled at (2017): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2026): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1670): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1665): [] __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.6/9624 Modules linked in: CPU: 1 UID: 0 PID: 9624 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+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:ffff88804d90fe08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88804b60a888 RCX: ffffc9000a065000 RDX: 0000000000040000 RSI: ffffffff81c9577a RDI: 0000000000000001 RBP: ffff888009487c01 R08: 0000000000000001 R09: ffffed1001290f97 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800ca48e00 R13: 0000000000000000 R14: ffff88804c928000 R15: ffff88804d90fe98 FS: 00007f63dd3d8700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63dd3b7718 CR3: 00000000171d5000 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: 0033:0x7f63dfe85107 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:00007f63dd3d8128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f63dff97020 RCX: 00007f63dfe85107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa737c14f R14: 00007f63dd3d8300 R15: 0000000000022000 irq event stamp: 2399 hardirqs last enabled at (2407): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2416): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1670): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1665): [] __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.6/9651 Modules linked in: CPU: 0 UID: 0 PID: 9651 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:ffff888049437e08 EFLAGS: 00010212 RAX: 0000000000015281 RBX: ffff88801f1cb680 RCX: ffffc90009a62000 RDX: 0000000000040000 RSI: ffffffff81c95788 RDI: 0000000000000001 RBP: ffff888016e76101 R08: 0000000000000001 R09: ffffed1002dcec62 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801a47d500 R13: 0000000000000000 R14: ffff888016711bc0 R15: ffff888049437e98 FS: 00007f63dd3f9700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e7de10ef0 CR3: 000000004d8bb000 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: 0033:0x7f63dfe85107 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:00007f63dd3f9128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f63dfe85107 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f63dd3f96bc R13: 000000000000000e R14: 00007f63dd3f9300 R15: 0000000000022000 irq event stamp: 1317 hardirqs last enabled at (1325): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1334): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1244): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (951): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]---