------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#0: syz-executor.7/6354 Modules linked in: CPU: 0 UID: 0 PID: 6354 Comm: syz-executor.7 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:ffff88804a6ffe08 EFLAGS: 00010212 RAX: 0000000000000d38 RBX: ffff888015be7888 RCX: ffffc900087f7000 RDX: 0000000000040000 RSI: ffffffff81c95742 RDI: 0000000000000001 RBP: ffff88800d36a001 R08: 0000000000000001 R09: ffffed1001a6d417 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801656ec40 R13: 0000000000000000 R14: ffff88800f1fb780 R15: ffff88804a6ffe98 FS: 00007f57e0bc2700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8219fa4018 CR3: 00000000072c6000 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: 0033:0x7f57e364e107 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:00007f57e0bc2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f57e375ff60 RCX: 00007f57e364e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca1b201cf R14: 00007f57e0bc2300 R15: 0000000000022000 irq event stamp: 1385 hardirqs last enabled at (1393): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1402): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1362): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1203): [] __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.7/6354 Modules linked in: CPU: 0 UID: 0 PID: 6354 Comm: syz-executor.7 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:ffff88804a6ffe08 EFLAGS: 00010212 RAX: 000000000001b9da RBX: ffff888015be7888 RCX: ffffc900087f7000 RDX: 0000000000040000 RSI: ffffffff81c95750 RDI: 0000000000000001 RBP: ffff888019eb8801 R08: 0000000000000001 R09: ffffed10033d715b R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801656ec40 R13: 0000000000000000 R14: ffff88800f1fb780 R15: ffff88804a6ffe98 FS: 00007f57e0bc2700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8219fa4018 CR3: 00000000072c6000 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: 0033:0x7f57e364e107 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:00007f57e0bc2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f57e375ff60 RCX: 00007f57e364e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca1b201cf R14: 00007f57e0bc2300 R15: 0000000000022000 irq event stamp: 2181 hardirqs last enabled at (2191): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2200): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (2118): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2113): [] __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.7/6354 Modules linked in: CPU: 0 UID: 0 PID: 6354 Comm: syz-executor.7 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:ffff88804a6ffe08 EFLAGS: 00010212 RAX: 0000000000036dda RBX: ffff888015be7888 RCX: ffffc900087f7000 RDX: 0000000000040000 RSI: ffffffff81c9575e RDI: 0000000000000001 RBP: ffff88801541c001 R08: 0000000000000001 R09: ffffed1002a83941 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801656ec40 R13: 0000000000000000 R14: ffff88800f1fb780 R15: ffff88804a6ffe98 FS: 00007f57e0bc2700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8219fa4018 CR3: 00000000072c6000 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: 0033:0x7f57e364e107 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:00007f57e0bc2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f57e375ff60 RCX: 00007f57e364e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca1b201cf R14: 00007f57e0bc2300 R15: 0000000000022000 irq event stamp: 3077 hardirqs last enabled at (3085): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (3266): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (3264): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3287): [] __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.7/6354 Modules linked in: CPU: 0 UID: 0 PID: 6354 Comm: syz-executor.7 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:ffff88804a6ffe08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888015be7888 RCX: ffffc900087f7000 RDX: 0000000000040000 RSI: ffffffff81c9577a RDI: 0000000000000001 RBP: ffff888009866e01 R08: 0000000000000001 R09: ffffed100130cdd7 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801656ec40 R13: 0000000000000000 R14: ffff88800f1fb780 R15: ffff88804a6ffe98 FS: 00007f57e0bc2700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8219fa4018 CR3: 00000000072c6000 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: 0033:0x7f57e364e107 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:00007f57e0bc2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f57e375ff60 RCX: 00007f57e364e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca1b201cf R14: 00007f57e0bc2300 R15: 0000000000022000 irq event stamp: 4489 hardirqs last enabled at (4499): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (4508): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4428): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4255): [] __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.7/6354 Modules linked in: CPU: 0 UID: 0 PID: 6354 Comm: syz-executor.7 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:ffff88804a6ffe08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888015be78f0 RCX: ffffc900087f7000 RDX: 0000000000040000 RSI: ffffffff81c95788 RDI: 0000000000000001 RBP: ffff88801a0f1801 R08: 0000000000000001 R09: ffffed100341e34a R10: 0000000000000001 R11: 0000000000000001 R12: ffff88804a2d41c0 R13: 0000000000000000 R14: ffff88800f1fb780 R15: ffff88804a6ffe98 FS: 00007f57e0bc2700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe12360fc8 CR3: 00000000072c6000 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: 0033:0x7f57e364e107 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:00007f57e0bc2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f57e364e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f57e0bc26bc R13: 000000000000000e R14: 00007f57e0bc2300 R15: 0000000000022000 irq event stamp: 5007 hardirqs last enabled at (5017): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (5026): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (4756): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4751): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 buffer_io_error: 6 callbacks suppressed Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer Buffer I/O error on dev sr0, logical block 1, async page read