------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.1/7087 Modules linked in: CPU: 1 UID: 0 PID: 7087 Comm: syz-executor.1 Not tainted 6.18.0-rc4-next-20251106 #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 c9 9d ab ff 84 db 75 07 5b 5d e9 ee a2 ab ff e8 e9 a2 ab ff 90 0f 0b 90 eb ee e8 de a2 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 d0 a2 ab ff 90 0f 0b 90 e9 92 fd ff ff RSP: 0018:ffff888016dbfe08 EFLAGS: 00010212 RAX: 0000000000000d3c RBX: ffff88800d06ad00 RCX: ffffc900034a4000 RDX: 0000000000040000 RSI: ffffffff81c92b42 RDI: 0000000000000001 RBP: ffff88800e769001 R08: 0000000000000001 R09: ffffed1001ced217 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800f074540 R13: 0000000000000000 R14: ffff8880493db780 R15: ffff888016dbfe98 FS: 00007fdef85a5700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa0fdf17e40 CR3: 000000000d6fd000 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: 0033:0x7fdefb031107 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:00007fdef85a5128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fdefb142f60 RCX: 00007fdefb031107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa1ba2c7f R14: 00007fdef85a5300 R15: 0000000000022000 irq event stamp: 881 hardirqs last enabled at (889): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (900): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (672): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (667): [] __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.1/7087 Modules linked in: CPU: 1 UID: 0 PID: 7087 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251106 #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 ee a2 ab ff e8 e9 a2 ab ff 90 0f 0b 90 eb ee e8 de a2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 d0 a2 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 c2 a2 ab ff 90 0f 0b 90 e9 e5 fd ff ff RSP: 0018:ffff888016dbfe08 EFLAGS: 00010212 RAX: 000000000001c046 RBX: ffff88800d06ad00 RCX: ffffc900034a4000 RDX: 0000000000040000 RSI: ffffffff81c92b50 RDI: 0000000000000001 RBP: ffff88800e728501 R08: 0000000000000001 R09: ffffed1001ce5100 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800f074540 R13: 0000000000000000 R14: ffff8880493db780 R15: ffff888016dbfe98 FS: 00007fdef85a5700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa0fdf17e40 CR3: 000000000d6fd000 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: 0033:0x7fdefb031107 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:00007fdef85a5128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fdefb142f60 RCX: 00007fdefb031107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa1ba2c7f R14: 00007fdef85a5300 R15: 0000000000022000 irq event stamp: 2041 hardirqs last enabled at (2049): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2058): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2018): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2013): [] __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.1/7087 Modules linked in: CPU: 1 UID: 0 PID: 7087 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251106 #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 de a2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 d0 a2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 c2 a2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff RSP: 0018:ffff888016dbfe08 EFLAGS: 00010212 RAX: 0000000000037afe RBX: ffff88800d06ad00 RCX: ffffc900034a4000 RDX: 0000000000040000 RSI: ffffffff81c92b5e RDI: 0000000000000001 RBP: ffff888015dc4001 R08: 0000000000000001 R09: ffffed1002bb8941 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800f074540 R13: 0000000000000000 R14: ffff8880493db780 R15: ffff888016dbfe98 FS: 00007fdef85a5700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa0fdf17e40 CR3: 000000000d6fd000 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: 0033:0x7fdefb031107 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:00007fdef85a5128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fdefb142f60 RCX: 00007fdefb031107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa1ba2c7f R14: 00007fdef85a5300 R15: 0000000000022000 irq event stamp: 2479 hardirqs last enabled at (2487): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2496): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2118): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2107): [] __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.1/7087 Modules linked in: CPU: 1 UID: 0 PID: 7087 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251106 #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 c2 a2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 a6 a2 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 98 a2 ab ff 90 0f 0b 90 e9 de fe ff ff RSP: 0018:ffff888016dbfe08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88800d06ad00 RCX: ffffc900034a4000 RDX: 0000000000040000 RSI: ffffffff81c92b7a RDI: 0000000000000001 RBP: ffff8880094c0e01 R08: 0000000000000001 R09: ffffed10012981d7 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800f074540 R13: 0000000000000000 R14: ffff8880493db780 R15: ffff888016dbfe98 FS: 00007fdef85a5700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa0fdf17e40 CR3: 000000000d6fd000 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: 0033:0x7fdefb031107 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:00007fdef85a5128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fdefb142f60 RCX: 00007fdefb031107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa1ba2c7f R14: 00007fdef85a5300 R15: 0000000000022000 irq event stamp: 2919 hardirqs last enabled at (2929): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (3300): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (3640): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3309): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]---