------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.1/46251 Modules linked in: CPU: 1 UID: 0 PID: 46251 Comm: syz-executor.1 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:ffff888050c87e08 EFLAGS: 00010212 RAX: 0000000000000d9e RBX: ffff88804c5ea750 RCX: ffffc90002f10000 RDX: 0000000000040000 RSI: ffffffff81c8ab62 RDI: 0000000000000001 RBP: ffff888017d12001 R08: 0000000000000001 R09: ffffed1002fa2417 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888009852c40 R13: 0000000000000000 R14: ffff888016213780 R15: ffff888050c87e98 FS: 00007fd9b21a2700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd9b4d40018 CR3: 000000004d423000 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: 0033:0x7fd9b4c2e107 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:00007fd9b21a2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fd9b4d3ff60 RCX: 00007fd9b4c2e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc67e79bcf R14: 00007fd9b21a2300 R15: 0000000000022000 irq event stamp: 509 hardirqs last enabled at (519): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (528): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (234): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (547): [] __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.1/46251 Modules linked in: CPU: 1 UID: 0 PID: 46251 Comm: syz-executor.1 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:ffff888050c87e08 EFLAGS: 00010202 RAX: 000000000001b680 RBX: ffff88804c5ea750 RCX: ffffc90002f10000 RDX: 0000000000040000 RSI: ffffffff81c8ab70 RDI: 0000000000000001 RBP: ffff888017d20201 R08: 0000000000000001 R09: ffffed1002fa40a5 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888009852c40 R13: 0000000000000000 R14: ffff888016213780 R15: ffff888050c87e98 FS: 00007fd9b21a2700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd9b4d40018 CR3: 000000004d423000 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: 0033:0x7fd9b4c2e107 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:00007fd9b21a2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fd9b4d3ff60 RCX: 00007fd9b4c2e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc67e79bcf R14: 00007fd9b21a2300 R15: 0000000000022000 irq event stamp: 925 hardirqs last enabled at (933): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (942): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (604): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (591): [] __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.1/46251 Modules linked in: CPU: 1 UID: 0 PID: 46251 Comm: syz-executor.1 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:ffff888050c87e08 EFLAGS: 00010216 RAX: 00000000000366d5 RBX: ffff88804c5ea750 RCX: ffffc90002f10000 RDX: 0000000000040000 RSI: ffffffff81c8ab7e RDI: 0000000000000001 RBP: ffff888016aa0001 R08: 0000000000000001 R09: ffffed1002d54141 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888009852c40 R13: 0000000000000000 R14: ffff888016213780 R15: ffff888050c87e98 FS: 00007fd9b21a2700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd9b4d40018 CR3: 000000004d423000 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: 0033:0x7fd9b4c2e107 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:00007fd9b21a2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fd9b4d3ff60 RCX: 00007fd9b4c2e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc67e79bcf R14: 00007fd9b21a2300 R15: 0000000000022000 irq event stamp: 1389 hardirqs last enabled at (1397): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1406): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1194): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1163): [] __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.1/46251 Modules linked in: CPU: 1 UID: 0 PID: 46251 Comm: syz-executor.1 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:ffff888050c87e08 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88804c5ea750 RCX: ffffc90002f10000 RDX: 0000000000040000 RSI: ffffffff81c8ab9a RDI: 0000000000000001 RBP: ffff8880094e7201 R08: 0000000000000001 R09: ffffed100129ce57 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888009852c40 R13: 0000000000000000 R14: ffff888016213780 R15: ffff888050c87e98 FS: 00007fd9b21a2700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd9b4d40018 CR3: 000000004d423000 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: 0033:0x7fd9b4c2e107 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:00007fd9b21a2128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fd9b4d3ff60 RCX: 00007fd9b4c2e107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc67e79bcf R14: 00007fd9b21a2300 R15: 0000000000022000 irq event stamp: 1787 hardirqs last enabled at (1795): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1804): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1696): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1691): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- SELinux: Context system_u:object_r:hald_cache_t:s0 is not valid (left unmapped). EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 4095 (only 16 groups) EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 4095 (only 16 groups) EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 4095 (only 16 groups) No source specified No source specified ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x369/0x3d0, CPU#0: syz-executor.1/46603 Modules linked in: CPU: 0 UID: 0 PID: 46603 Comm: syz-executor.1 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+0x369/0x3d0 Code: 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 e8 ba dc ab ff 90 0f 0b 90 e9 31 ff ff ff RSP: 0018:ffff8880510bfe20 EFLAGS: 00010216 RAX: 000000000000b537 RBX: ffff888041383bc8 RCX: ffffc90002f10000 RDX: 0000000000040000 RSI: ffffffff81c8aba8 RDI: 0000000000000001 RBP: ffff888017718001 R08: 0000000000000001 R09: ffffed1002ee3042 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888041383bc8 FS: 00007fd9b21a2700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f077f40f3a4 CR3: 000000005210c000 CR4: 0000000000350ef0 Call Trace: switch_task_namespaces+0x3d/0x110 ksys_unshare+0x520/0xa10 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd9b4c2cb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fd9b21a2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fd9b4d3ff60 RCX: 00007fd9b4c2cb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000008000000 RBP: 00007fd9b4c86f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc67e79bcf R14: 00007fd9b21a2300 R15: 0000000000022000 irq event stamp: 683 hardirqs last enabled at (691): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (700): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (354): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (347): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- No source specified No source specified No source specified cgroup: fork rejected by pids controller in /syz5 netlink: 'syz-executor.0': attribute type 19 has an invalid length. netlink: 'syz-executor.0': attribute type 19 has an invalid length. netlink: 'syz-executor.0': attribute type 19 has an invalid length. netlink: 'syz-executor.0': attribute type 19 has an invalid length. netlink: 'syz-executor.0': attribute type 19 has an invalid length. sr 1:0:0:0: [sr0] tag#0 unaligned transfer blk_print_req_error: 55 callbacks suppressed I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 34 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer