------------[ cut here ]------------
WARNING: CPU: 0 PID: 7685 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0
Modules linked in:
CPU: 0 UID: 0 PID: 7685 Comm: syz-executor.6 Not tainted 6.13.0-rc3-next-20241220 #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 5c 80 a3 00 e8 47 df 6a fd 90 <0f> 0b 90 eb 93 e8 3c df 6a fd 0f b6 2d 1d 26 36 02 31 ff 89 ee e8
RSP: 0018:ffff888042f0f8b8 EFLAGS: 00010216
RAX: 00000000000196f7 RBX: ffff8880168bdc00 RCX: ffffc900073bf000
RDX: 0000000000040000 RSI: ffffffff8406ea09 RDI: 0000000000000005
RBP: ffff888040766000 R08: 0000000000000000 R09: ffffed1002d17ba9
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880168be400 R14: ffff8880168bdc00 R15: fffffbfff0c51178
FS:  00007f66d1071700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555588638c98 CR3: 000000001b368000 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: 0033:0x7f66d3afbb19
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'.
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:00007f66d1071188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f66d3c0ef60 RCX: 00007f66d3afbb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020001540
RBP: 00007f66d3b55f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf5eed9df R14: 00007f66d1071300 R15: 0000000000022000
 </TASK>
irq event stamp: 14457
hardirqs last  enabled at (14467): [<ffffffff81528b38>] __up_console_sem+0x78/0x80
hardirqs last disabled at (14478): [<ffffffff81528b1d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (14350): [<ffffffff813a9e4c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (14335): [<ffffffff813aa1e4>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   9:	00 00 00
   c:	0f 1f 40 00          	nopl   0x0(%rax)
  10:	48 89 f8             	mov    %rdi,%rax
  13:	48 89 f7             	mov    %rsi,%rdi
  16:	48 89 d6             	mov    %rdx,%rsi
  19:	48 89 ca             	mov    %rcx,%rdx
  1c:	4d 89 c2             	mov    %r8,%r10
  1f:	4d 89 c8             	mov    %r9,%r8
  22:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  27:	0f 05                	syscall
* 29:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  2f:	73 01                	jae    0x32
  31:	c3                   	retq
  32:	48 c7 c1 bc ff ff ff 	mov    $0xffffffffffffffbc,%rcx
  39:	f7 d8                	neg    %eax
  3b:	64 89 01             	mov    %eax,%fs:(%rcx)
  3e:	48                   	rex.W