------------[ cut here ]------------
WARNING: CPU: 0 PID: 19487 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0
Modules linked in:
CPU: 0 UID: 0 PID: 19487 Comm: syz-executor.4 Not tainted 6.13.0-rc2-next-20241213 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:ipmr_rules_exit+0x13a/0x1c0
Code: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 00 08 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 cc 66 a3 00 e8 17 9c 6d fd 90 <0f> 0b 90 eb 93 e8 0c 9c 6d fd 0f b6 2d 20 ac 38 02 31 ff 89 ee e8
RSP: 0018:ffff888015d6f8b8 EFLAGS: 00010212
RAX: 0000000000019147 RBX: ffff88803e809700 RCX: ffffc9000ee7a000
RDX: 0000000000040000 RSI: ffffffff840455d9 RDI: 0000000000000005
RBP: ffff88803fe8c000 R08: 0000000000000000 R09: ffffed1007d01309
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88803e809f00 R14: ffff88803e809700 R15: fffffbfff0c50fe8
FS:  00007fca101b3700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 000000002ca3e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ipmr_net_exit_batch+0x53/0xa0
 ops_exit_list+0x12b/0x180
 setup_net+0x492/0x7a0
 copy_net_ns+0x2e3/0x700
 create_new_namespaces+0x3f6/0xaf0
 copy_namespaces+0x45c/0x580
 copy_process+0x26c0/0x70e0
 kernel_clone+0xeb/0x850
 __do_sys_clone3+0x1d9/0x260
 do_syscall_64+0xbf/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca12c3db19
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:00007fca101b3188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fca12d50f60 RCX: 00007fca12c3db19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020001540
RBP: 00007fca12c97f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb503c6ef R14: 00007fca101b3300 R15: 0000000000022000
 </TASK>
irq event stamp: 17439
hardirqs last  enabled at (17449): [<ffffffff81528248>] __up_console_sem+0x78/0x80
hardirqs last disabled at (17462): [<ffffffff8152822d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (17422): [<ffffffff813a99fc>] handle_softirqs+0x50c/0x770
softirqs last disabled at (17417): [<ffffffff813a9d94>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop5: detected capacity change from 0 to 40
vfat: Unknown parameter './file0'
loop5: detected capacity change from 0 to 40
vfat: Unknown parameter '
/file0'