------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.4/92894
Modules linked in:
CPU: 0 UID: 0 PID: 92894 Comm: syz-executor.4 Not tainted 6.18.0-rc4-next-20251105 #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+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 fe d2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 f0 d2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 e2 d2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 d4 d2 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff8880541ffe08 EFLAGS: 00010216
RAX: 0000000000000d8c RBX: ffff88804f6a4bc8 RCX: ffffc90005ab7000
RDX: 0000000000040000 RSI: ffffffff81c8ca0e RDI: 0000000000000001
RBP: ffff88800a404001 R08: 0000000000000001 R09: ffffed1001480941
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880169cbc00
R13: 0000000000000000 R14: ffff8880510ad340 R15: ffff8880541ffe98
FS: 00007ffac9d33700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000001 CR3: 000000005095a000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
loop1: detected capacity change from 0 to 1024
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffacc7bf107
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:00007ffac9d33128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007ffacc8d0f60 RCX: 00007ffacc7bf107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffefe4f04cf R14: 00007ffac9d33300 R15: 0000000000022000
irq event stamp: 537
hardirqs last enabled at (547): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (556): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (188): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (161): [] __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.4/92894
Modules linked in:
CPU: 0 UID: 0 PID: 92894 Comm: syz-executor.4 Tainted: G W 6.18.0-rc4-next-20251105 #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 e2 d2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 d4 d2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 c6 d2 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 b8 d2 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff8880541ffe08 EFLAGS: 00010216
RAX: 000000000001fd13 RBX: ffff88804f6a4bc8 RCX: ffffc90005ab7000
RDX: 0000000000040000 RSI: ffffffff81c8ca2a RDI: 0000000000000001
RBP: ffff888009868e01 R08: 0000000000000001 R09: ffffed100130d1d7
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880169cbc00
R13: 0000000000000000 R14: ffff8880510ad340 R15: ffff8880541ffe98
FS: 00007ffac9d33700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000001 CR3: 000000005095a000 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: 0033:0x7ffacc7bf107
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:00007ffac9d33128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007ffacc8d0f60 RCX: 00007ffacc7bf107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffefe4f04cf R14: 00007ffac9d33300 R15: 0000000000022000
irq event stamp: 1053
hardirqs last enabled at (1063): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1072): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (992): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (951): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop0: detected capacity change from 0 to 1024
EXT4-fs (loop0): inodes count not valid: 2097184 vs 32
loop5: detected capacity change from 0 to 264192
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop0: detected capacity change from 0 to 1024
EXT4-fs (loop5): unsupported descriptor size 0
EXT4-fs (loop0): inodes count not valid: 2097184 vs 32
loop5: detected capacity change from 0 to 264192
EXT4-fs (loop5): unsupported descriptor size 0
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs warning (device loop3): ext4_multi_mount_protect:332: MMP startup interrupted, failing mount
loop5: detected capacity change from 0 to 264192
loop1: detected capacity change from 0 to 1024
EXT4-fs (loop5): unsupported descriptor size 0
loop0: detected capacity change from 0 to 1024
EXT4-fs (loop0): inodes count not valid: 2101280 vs 32
loop5: detected capacity change from 0 to 264192
loop3: detected capacity change from 0 to 1032
EXT4-fs (loop5): unsupported descriptor size 0
loop0: detected capacity change from 0 to 1024
EXT4-fs (loop0): inodes count not valid: 2101280 vs 32
EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop5: detected capacity change from 0 to 264192
EXT4-fs (loop5): unsupported descriptor size 0
loop5: detected capacity change from 0 to 264192
EXT4-fs (loop5): unsupported descriptor size 0
loop5: detected capacity change from 0 to 264192
EXT4-fs (loop5): unsupported descriptor size 0
EXT4-fs (loop1): unmounting filesystem 00000000-0000-0000-0000-000000000000.