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: 1 PID: 9429 Comm: syz.4.1897 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__hlist_del include/linux/list.h:863 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:542 [inline]
RIP: 0010:br_del_frame+0xcd/0x150 net/bridge/br_input.c:423
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 4d 0f fa f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 b4 0f fa f8 4d 89 37 4d 85 f6 74
RSP: 0018:ffffc9000336f0d0 EFLAGS: 00010a06
RAX: 1bd5a00000000024 RBX: ffffffff8e6d0290 RCX: 0000000000080000
RDX: ffffc9000f43e000 RSI: 000000000000baf8 RDI: ffffffff8e6d0288
RBP: 000000000000001d R08: ffffffff910150cf R09: 1ffffffff2202a19
R10: dffffc0000000000 R11: fffffbfff2202a1a R12: dffffc0000000000
R13: 1ffffffff1cda052 R14: 0000000000000000 R15: dead000000000122
FS:  00007f2316fb76c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3281eff8 CR3: 000000007dbb4000 CR4: 00000000003506e0
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+0x159/0xa20 net/bridge/br_if.c:338
 br_dev_delete+0x6a/0x120 net/bridge/br_if.c:377
 rtnl_delete_link net/core/rtnetlink.c:3125 [inline]
 rtnl_dellink+0x523/0x7b0 net/core/rtnetlink.c:3177
 rtnetlink_rcv_msg+0x7f1/0xf10 net/core/rtnetlink.c:5698
 netlink_rcv_skb+0x1e9/0x430 net/netlink/af_netlink.c:2519
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x78f/0x940 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x8ba/0xbe0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 sock_write_iter+0x2a6/0x3a0 net/socket.c:1090
 call_write_iter include/linux/fs.h:2179 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x748/0xd70 fs/read_write.c:594
 ksys_write+0x153/0x260 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2318d80559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2316fb7028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2319008090 RCX: 00007f2318d80559
RDX: 0000000000000024 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007f2318e178b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2319008128 R14: 00007f2319008090 R15: 00007ffcb5962a68
 </TASK>
Modules linked in:
---[ end trace ff37964c7aa81d4a ]---
RIP: 0010:__hlist_del include/linux/list.h:863 [inline]
RIP: 0010:hlist_del_rcu include/linux/rculist.h:542 [inline]
RIP: 0010:br_del_frame+0xcd/0x150 net/bridge/br_input.c:423
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 4d 0f fa f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 b4 0f fa f8 4d 89 37 4d 85 f6 74
RSP: 0018:ffffc9000336f0d0 EFLAGS: 00010a06
RAX: 1bd5a00000000024 RBX: ffffffff8e6d0290 RCX: 0000000000080000
RDX: ffffc9000f43e000 RSI: 000000000000baf8 RDI: ffffffff8e6d0288
RBP: 000000000000001d R08: ffffffff910150cf R09: 1ffffffff2202a19
R10: dffffc0000000000 R11: fffffbfff2202a1a R12: dffffc0000000000
R13: 1ffffffff1cda052 R14: 0000000000000000 R15: dead000000000122
FS:  00007f2316fb76c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f23f7972000 CR3: 000000007dbb4000 CR4: 00000000003506f0
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 4d 0f fa f8       	call   0xf8fa0f6d
  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 b4 0f fa f8       	call   0xf8fa0fed
  39:	4d 89 37             	mov    %r14,(%r15)
  3c:	4d 85 f6             	test   %r14,%r14
  3f:	74                   	.byte 0x74