------------[ cut here ]------------
WARNING: CPU: 1 PID: 17516 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0
Modules linked in:
CPU: 1 UID: 0 PID: 17516 Comm: syz-executor.5 Not tainted 6.13.0-rc2-next-20241212 #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 bc 73 a3 00 e8 d7 bf 6d fd 90 <0f> 0b 90 eb 93 e8 cc bf 6d fd 0f b6 2d 10 ce 38 02 31 ff 89 ee e8
RSP: 0018:ffff88801700fc20 EFLAGS: 00010206
RAX: 0000000000016170 RBX: ffff88803c7e2e00 RCX: ffffc90005606000
RDX: 0000000000040000 RSI: ffffffff84043329 RDI: 0000000000000005
RBP: ffff8880354ca000 R08: 0000000000000000 R09: ffffed10078fc5e9
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffff88803c7e3600 R14: ffff88803c7e2e00 R15: fffffbfff0c50f98
FS:  00007f9db15c2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005603f57d8490 CR3: 000000000df82000 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
 unshare_nsproxy_namespaces+0xc0/0x200
 ksys_unshare+0x46a/0xa10
 __x64_sys_unshare+0x31/0x40
 do_syscall_64+0xbf/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9db404cb19
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:00007f9db15c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f9db415ff60 RCX: 00007f9db404cb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f9db40a6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2bc1e76f R14: 00007f9db15c2300 R15: 0000000000022000
 </TASK>
irq event stamp: 11645
hardirqs last  enabled at (11655): [<ffffffff81528508>] __up_console_sem+0x78/0x80
hardirqs last disabled at (11666): [<ffffffff815284ed>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (11356): [<ffffffff813a992c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (11349): [<ffffffff813a9cc4>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
syz_tun: left promiscuous mode
vfat: Unknown parameter './file1'
syz_tun: entered promiscuous mode
syz_tun: left promiscuous mode
Process accounting paused
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 17572 Comm: syz-executor.7 Tainted: G        W          6.13.0-rc2-next-20241212 #1
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xfa/0x120
 should_fail_ex+0x4d7/0x5e0
 _copy_from_user+0x30/0xd0
 move_addr_to_kernel.part.0+0x31/0x110
 __sys_connect+0xd5/0x1a0
 __x64_sys_connect+0x73/0xb0
 do_syscall_64+0xbf/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91f72e9b19
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:00007f91f485f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f91f73fcf60 RCX: 00007f91f72e9b19
RDX: 0000000000000080 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f91f485f1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffda5395b0f R14: 00007f91f485f300 R15: 0000000000022000
 </TASK>