msdos: Bad value for 'fmask'
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WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.0/37298
Modules linked in:
CPU: 0 UID: 0 PID: 37298 Comm: syz-executor.0 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+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:ffff88804f5b7e08 EFLAGS: 00010212
RAX: 0000000000000c16 RBX: ffff88801760c000 RCX: ffffc90000819000
RDX: 0000000000040000 RSI: ffffffff81c8ab7e RDI: 0000000000000001
RBP: ffff88801741e001 R08: 0000000000000001 R09: ffffed1002e83d41
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801616b500
R13: 0000000000000000 R14: ffff88800f870000 R15: ffff88804f5b7e98
FS:  00007f2de0d36700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f053d3000 CR3: 000000000df73000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x3f0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2de37c2107
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:00007f2de0d36128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f2de38d3f60 RCX: 00007f2de37c2107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe4f7aae5f R14: 00007f2de0d36300 R15: 0000000000022000
 </TASK>
irq event stamp: 829
hardirqs last  enabled at (837): [<ffffffff81547428>] __up_console_sem+0x78/0x80
hardirqs last disabled at (846): [<ffffffff8154740d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (520): [<ffffffff813bc1cc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (249): [<ffffffff813bc564>] __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.0/37298
Modules linked in:
CPU: 0 UID: 0 PID: 37298 Comm: syz-executor.0 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:ffff88804f5b7e08 EFLAGS: 00010216
RAX: 000000000001a81c RBX: ffff88801760c000 RCX: ffffc90000819000
RDX: 0000000000040000 RSI: ffffffff81c8ab9a RDI: 0000000000000001
RBP: ffff888009487001 R08: 0000000000000001 R09: ffffed1001290e17
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801616b500
R13: 0000000000000000 R14: ffff88800f870000 R15: ffff88804f5b7e98
FS:  00007f2de0d36700(0000) GS:ffff8880e53a8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f053d3000 CR3: 000000000df73000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x3f0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2de37c2107
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:00007f2de0d36128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f2de38d3f60 RCX: 00007f2de37c2107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe4f7aae5f R14: 00007f2de0d36300 R15: 0000000000022000
 </TASK>
irq event stamp: 1217
hardirqs last  enabled at (1225): [<ffffffff81547428>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1234): [<ffffffff8154740d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1000): [<ffffffff813bc1cc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (995): [<ffffffff813bc564>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
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msdos: Unknown parameter 'smackfsroot'
msdos: Unknown parameter 'smackfsroot'
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SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=37675 comm=syz-executor.0
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SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=37728 comm=syz-executor.0
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