bridge0: port 1(bridge_slave_0) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
Unable to handle kernel paging request at virtual address fbd5200000000024
KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127]
Mem abort info:
  ESR = 0x0000000096000004
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x04: level 0 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000004
  CM = 0, WnR = 0
[fbd5200000000024] address between user and kernel address ranges
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 9220 Comm: syz.1.1505 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __hlist_del include/linux/list.h:891 [inline]
pc : hlist_del_rcu include/linux/rculist.h:542 [inline]
pc : br_del_frame+0xcc/0x158 net/bridge/br_input.c:445
lr : br_del_frame+0x2c/0x158 net/bridge/br_input.c:440
sp : ffff800022786ab0
x29: ffff800022786ab0 x28: 1fffe0001a8d8000 x27: dfff800000000000
x26: dead000000000122 x25: dfff800000000000 x24: 1fffe000197ec381
x23: 1ffff00002c87853 x22: dfff800000000000 x21: 0000000000000000
x20: ffff80001643c298 x19: dead000000000122 x18: 1fffe00033c1c97e
x17: ffff80001641d000 x16: ffff8000082dd38c x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe00033c1caa8 x12: 0000000000080000
x11: 000000000002bd26 x10: ffff80002398c000 x9 : ffff800010b9bca8
x8 : 1bd5a00000000024 x7 : ffff800008363570 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff80001643c280 x0 : ffff0000ce31cc80
dump_backtrace(regs = 0000000069e7777d tsk = 0000000000000000)
Call trace:
 __hlist_del include/linux/list.h:891 [inline]
 hlist_del_rcu include/linux/rculist.h:542 [inline]
 br_del_frame+0xcc/0x158 net/bridge/br_input.c:445
 mep_delete_implementation+0x268/0x2b4 net/bridge/br_cfm.c:591
 br_cfm_port_del+0x108/0x1bc net/bridge/br_cfm.c:872
 del_nbp+0x154/0x910 net/bridge/br_if.c:347
 br_del_if+0x154/0x32c net/bridge/br_if.c:743
 br_del_slave+0x28/0x38 net/bridge/br_device.c:395
 do_set_master net/core/rtnetlink.c:2628 [inline]
 do_setlink+0xb78/0x2158 net/core/rtnetlink.c:2852
 rtnl_setlink+0x314/0x408 net/core/rtnetlink.c:3136
 rtnetlink_rcv_msg+0x694/0xcc4 net/core/rtnetlink.c:6166
 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6184
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x588/0x90c net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2602
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg net/socket.c:2609 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x12c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: aa1403e0 97d15db7 f9400293 d343fe68 (38766908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1403e0 	mov	x0, x20
   4:	97d15db7 	bl	0xffffffffff4576e0
   8:	f9400293 	ldr	x19, [x20]
   c:	d343fe68 	lsr	x8, x19, #3
* 10:	38766908 	ldrb	w8, [x8, x22] <-- trapping instruction