loop4: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#0: syz-executor.0/19629
Modules linked in:
CPU: 0 UID: 0 PID: 19629 Comm: syz-executor.0 Not tainted 6.18.0-rc4-next-20251107 #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 29 1f ab ff 84 db 75 07 5b 5d e9 4e 24 ab ff e8 49 24 ab ff 90 0f 0b 90 eb ee e8 3e 24 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff
RSP: 0018:ffff888013e87e08 EFLAGS: 00010216
RAX: 0000000000000d0a RBX: ffff88804c5c42d8 RCX: ffffc90007021000
RDX: 0000000000040000 RSI: ffffffff81c9aaf2 RDI: 0000000000000001
RBP: ffff88801a26e001 R08: 0000000000000001 R09: ffffed100344dc17
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801778ee00
R13: 0000000000000000 R14: ffff888049155340 R15: ffff888013e87e98
FS:  00007feb275f7700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f487bd4a000 CR3: 000000000d245000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb2a083107
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:00007feb275f7128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007feb2a194f60 RCX: 00007feb2a083107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7fbfc26f R14: 00007feb275f7300 R15: 0000000000022000
 </TASK>
irq event stamp: 547
hardirqs last  enabled at (557): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
loop5: detected capacity change from 0 to 64
hardirqs last disabled at (579): [<ffffffff813bc5b3>] handle_softirqs+0x633/0x770
softirqs last  enabled at (580): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (565): [<ffffffff813bc824>] __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.0/19629
Modules linked in:
CPU: 0 UID: 0 PID: 19629 Comm: syz-executor.0 Tainted: G        W           6.18.0-rc4-next-20251107 #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 4e 24 ab ff e8 49 24 ab ff 90 0f 0b 90 eb ee e8 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff
RSP: 0018:ffff888013e87e08 EFLAGS: 00010202
RAX: 000000000001e830 RBX: ffff88804c5c42d8 RCX: ffffc90007021000
RDX: 0000000000040000 RSI: ffffffff81c9ab00 RDI: 0000000000000001
RBP: ffff888018c34b01 R08: 0000000000000001 R09: ffffed10031869b6
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801778ee00
R13: 0000000000000000 R14: ffff888049155340 R15: ffff888013e87e98
FS:  00007feb275f7700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f487bd4a000 CR3: 000000000d245000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb2a083107
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:00007feb275f7128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007feb2a194f60 RCX: 00007feb2a083107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7fbfc26f R14: 00007feb275f7300 R15: 0000000000022000
 </TASK>
irq event stamp: 1675
hardirqs last  enabled at (1685): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1692): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1566): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (1561): [<ffffffff813bc824>] __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.0/19629
Modules linked in:
CPU: 0 UID: 0 PID: 19629 Comm: syz-executor.0 Tainted: G        W           6.18.0-rc4-next-20251107 #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 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff888013e87e08 EFLAGS: 00010212
RAX: 0000000000038dc8 RBX: ffff88804c5c42d8 RCX: ffffc90007021000
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RBP: ffff888017898001 R08: 0000000000000001 R09: ffffed1002f13141
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801778ee00
R13: 0000000000000000 R14: ffff888049155340 R15: ffff888013e87e98
FS:  00007feb275f7700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f487bd4a000 CR3: 000000000d245000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb2a083107
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:00007feb275f7128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007feb2a194f60 RCX: 00007feb2a083107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7fbfc26f R14: 00007feb275f7300 R15: 0000000000022000
 </TASK>
irq event stamp: 2063
hardirqs last  enabled at (2071): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2080): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1566): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (1561): [<ffffffff813bc824>] __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.0/19629
Modules linked in:
CPU: 0 UID: 0 PID: 19629 Comm: syz-executor.0 Tainted: G        W           6.18.0-rc4-next-20251107 #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 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff888013e87e08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88804c5c42d8 RCX: ffffc90007021000
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff88801f080601 R08: 0000000000000001 R09: ffffed1003e100d7
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801778ee00
R13: 0000000000000000 R14: ffff888049155340 R15: ffff888013e87e98
FS:  00007feb275f7700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f487bd4a000 CR3: 000000000d245000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb2a083107
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:00007feb275f7128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007feb2a194f60 RCX: 00007feb2a083107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe7fbfc26f R14: 00007feb275f7300 R15: 0000000000022000
 </TASK>
irq event stamp: 2523
hardirqs last  enabled at (2531): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2540): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (2340): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (2559): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x369/0x3d0, CPU#0: syz-executor.0/19629
Modules linked in:
CPU: 0 UID: 0 PID: 19629 Comm: syz-executor.0 Tainted: G        W           6.18.0-rc4-next-20251107 #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 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 0f 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 <0f> 0b 90 e9 de fe ff ff e8 ea 23 ab ff 90 0f 0b 90 e9 31 ff ff ff
RSP: 0018:ffff888013e87e08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88804c5c4410 RCX: ffffc90007021000
RDX: 0000000000040000 RSI: ffffffff81c9ab38 RDI: 0000000000000001
RBP: ffff88801a104801 R08: 0000000000000001 R09: ffffed100342095a
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016743340
R13: 0000000000000000 R14: ffff888049155340 R15: ffff888013e87e98
FS:  00007feb275f7700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f487bd28718 CR3: 000000000d245000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb2a083107
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:00007feb275f7128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007feb2a083107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007feb275f76bc
R13: 000000000000000e R14: 00007feb275f7300 R15: 0000000000022000
 </TASK>
irq event stamp: 3693
hardirqs last  enabled at (3703): [<ffffffff81548fa8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (3710): [<ffffffff81548f8d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (3636): [<ffffffff813bc48c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (3315): [<ffffffff813bc824>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop4: detected capacity change from 0 to 64
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8.
loop5: detected capacity change from 0 to 64
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8.
loop4: detected capacity change from 0 to 64
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop5: detected capacity change from 0 to 64
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop4: detected capacity change from 0 to 64
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8.
loop5: detected capacity change from 0 to 64
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8.
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
loop4: detected capacity change from 0 to 64
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)