------------[ cut here ]------------
WARNING: CPU: 1 PID: 13808 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0
Modules linked in:
CPU: 1 UID: 0 PID: 13808 Comm: syz-executor.6 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:ffff888015dbfc20 EFLAGS: 00010212
RAX: 0000000000016f11 RBX: ffff8880383d8000 RCX: ffffc90004fd7000
RDX: 0000000000040000 RSI: ffffffff840455d9 RDI: 0000000000000005
RBP: ffff88803289a000 R08: 0000000000000000 R09: ffffed100707b029
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880383d8800 R14: ffff8880383d8000 R15: fffffbfff0c50fe8
FS: 00007f5c6d402700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4a05fb6f64 CR3: 0000000014a34000 CR4: 0000000000350ef0
Call Trace:
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: 0033:0x7f5c6feadb19
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:00007f5c6d402188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f5c6ffc1020 RCX: 00007f5c6feadb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f5c6ff07f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9cc1417f R14: 00007f5c6d402300 R15: 0000000000022000
irq event stamp: 15723
hardirqs last enabled at (15733): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (15744): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (15584): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (15579): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 13830 Comm: syz-executor.0 Tainted: G W 6.13.0-rc2-next-20241213 #1
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
kmem_cache_alloc_noprof+0x60/0x3d0
__pmd_alloc+0x9c/0x8f0
__handle_mm_fault+0xca3/0x2d50
handle_mm_fault+0x2b4/0x6a0
do_user_addr_fault+0x395/0xf10
exc_page_fault+0x9c/0x1a0
asm_exc_page_fault+0x26/0x30
RIP: 0010:__put_user_4+0x11/0x20
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <89> 01 31 c9 0f 01 ca e9 53 af 02 00 0f 1f 00 90 90 90 90 90 90 90
RSP: 0018:ffff88804271fe30 EFLAGS: 00050206
RAX: 0000000000000004 RBX: 0000000000000000 RCX: 0000000020000000
RDX: 0000000000040000 RSI: ffffffff83ac5e5e RDI: ffff88803f085d78
RBP: 0000000000000002 R08: 0000000000000001 R09: ffff88803f085d80
R10: ffffffff863fbe97 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000
__sys_socketpair+0x10a/0x580
__x64_sys_socketpair+0x97/0x100
do_syscall_64+0xbf/0x1d0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4a05ea3b19
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:00007f4a03419188 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 00007f4a05fb6f60 RCX: 00007f4a05ea3b19
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002
RBP: 00007f4a034191d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc9d95498f R14: 00007f4a03419300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
7: 00
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: f3 0f 1e fa endbr64
1d: 48 89 cb mov %rcx,%rbx
20: 48 c1 fb 3f sar $0x3f,%rbx
24: 48 09 d9 or %rbx,%rcx
27: 0f 01 cb stac
* 2a: 89 01 mov %eax,(%rcx) <-- trapping instruction
2c: 31 c9 xor %ecx,%ecx
2e: 0f 01 ca clac
31: e9 53 af 02 00 jmpq 0x2af89
36: 0f 1f 00 nopl (%rax)
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop