loop1: detected capacity change from 0 to 512
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.6/5619
Modules linked in:
CPU: 1 UID: 0 PID: 5619 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:ffff8880493dfa48 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88800974fb60 RCX: ffffc90004045000
RDX: 0000000000040000 RSI: ffffffff81c95742 RDI: 0000000000000001
RBP: ffff88800b2f4401 R08: 0000000000000001 R09: ffffed100165e897
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800974fb60
R13: 0000000000000100 R14: ffff88800a345bb8 R15: ffff888018771450
FS: 00007fe2eb8f1700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cc21000 CR3: 0000000049822000 CR4: 0000000000350ef0
Call Trace:
copy_namespaces+0x4a3/0x580
copy_process+0x26e4/0x72a0
kernel_clone+0xea/0x7f0
__do_sys_clone3+0x1f5/0x280
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe2ee37bb19
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:00007fe2eb8f1188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fe2ee48ef60 RCX: 00007fe2ee37bb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007fe2ee3d5f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe0f2c94af R14: 00007fe2eb8f1300 R15: 0000000000022000
irq event stamp: 7745
hardirqs last enabled at (7753): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (7762): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (7436): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (7417): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop1: detected capacity change from 0 to 512
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop1: detected capacity change from 0 to 512
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x369/0x3d0, CPU#0: syz-executor.6/5978
Modules linked in:
CPU: 0 UID: 0 PID: 5978 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:ffff8880489f7e08 EFLAGS: 00010212
RAX: 0000000000001398 RBX: ffff88801e458958 RCX: ffffc90004045000
RDX: 0000000000040000 RSI: ffffffff81c95788 RDI: 0000000000000001
RBP: ffff88801bcfe101 R08: 0000000000000001 R09: ffffed100379fc62
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880164e2380
R13: 0000000000000000 R14: ffff888016d3d340 R15: ffff8880489f7e98
FS: 00007fe2eb8f1700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557a95845000 CR3: 000000004a0d1000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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: 0033:0x7fe2ee37d107
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
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
RSP: 002b:00007fe2eb8f1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe2ee37d107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe2eb8f16bc
R13: 000000000000000e R14: 00007fe2eb8f1300 R15: 0000000000022000
irq event stamp: 711
hardirqs last enabled at (721): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (730): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (486): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (475): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.