device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
general protection fault, probably for non-canonical address 0xfbd59c0000000024: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127]
CPU: 0 PID: 4359 Comm: kworker/u4:9 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: netns cleanup_net
RIP: 0010:__hlist_del include/linux/list.h:891 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:513 [inline]
RIP: 0010:br_del_frame+0xcd/0x150 net/bridge/br_input.c:445
Code: f8 4c 8b 73 10 48 83 c3 18 49 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 fd b7 bb f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 64 b8 bb f8 4d 89 37 4d 85 f6 74
RSP: 0000:ffffc900046af8f0 EFLAGS: 00010a06
RAX: 1bd5a00000000024 RBX: ffffffff8e229730 RCX: ffff88807b911e00
RDX: 0000000000000000 RSI: ffffffff8e229718 RDI: ffffffff8e229728
RBP: 000000000000001d R08: ffffffff90b0f24f R09: 1ffffffff2161e49
R10: dffffc0000000000 R11: fffffbfff2161e4a R12: dffffc0000000000
R13: 1ffffffff1c452e6 R14: 0000000000000000 R15: dead000000000122
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dd6e1a368 CR3: 00000000797bf000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 br_cfm_port_del+0x112/0x1b0 net/bridge/br_cfm.c:872
 del_nbp+0x167/0x9e0 net/bridge/br_if.c:347
 br_dev_delete+0x6a/0x130 net/bridge/br_if.c:386
 default_device_exit_batch+0x8bc/0x9f0 net/core/dev.c:11544
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x78e/0xba0 net/core/net_namespace.c:640
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__hlist_del include/linux/list.h:891 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:513 [inline]
RIP: 0010:br_del_frame+0xcd/0x150 net/bridge/br_input.c:445
Code: f8 4c 8b 73 10 48 83 c3 18 49 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 fd b7 bb f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 64 b8 bb f8 4d 89 37 4d 85 f6 74
RSP: 0000:ffffc900046af8f0 EFLAGS: 00010a06
RAX: 1bd5a00000000024 RBX: ffffffff8e229730 RCX: ffff88807b911e00
RDX: 0000000000000000 RSI: ffffffff8e229718 RDI: ffffffff8e229728
RBP: 000000000000001d R08: ffffffff90b0f24f R09: 1ffffffff2161e49
R10: dffffc0000000000 R11: fffffbfff2161e4a R12: dffffc0000000000
R13: 1ffffffff1c452e6 R14: 0000000000000000 R15: dead000000000122
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556fc8bd8950 CR3: 000000007e54e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	f8                   	clc
   1:	4c 8b 73 10          	mov    0x10(%rbx),%r14
   5:	48 83 c3 18          	add    $0x18,%rbx
   9:	49 89 dd             	mov    %rbx,%r13
   c:	49 c1 ed 03          	shr    $0x3,%r13
  10:	43 80 7c 25 00 00    	cmpb   $0x0,0x0(%r13,%r12,1)
  16:	74 08                	je     0x20
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	e8 fd b7 bb f8       	call   0xf8bbb81d
  20:	4c 8b 3b             	mov    (%rbx),%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 64 b8 bb f8       	call   0xf8bbb89d
  39:	4d 89 37             	mov    %r14,(%r15)
  3c:	4d 85 f6             	test   %r14,%r14
  3f:	74                   	.byte 0x74