bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state Oops: general protection fault, probably for non-canonical address 0xfbd59c0000000024: 0000 [#1] SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127] CPU: 1 UID: 0 PID: 21372 Comm: syz.7.6318 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026 RIP: 0010:__hlist_del include/linux/list.h:1029 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:599 [inline] RIP: 0010:br_del_frame+0x106/0x1a0 net/bridge/br_input.c:482 Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 87 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 65 18 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 76 49 89 1c 24 48 85 db 74 24 e8 36 f0 7c f7 48 8d RSP: 0018:ffffc900054cf280 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900065b9000 RDX: 1bd5a00000000024 RSI: ffffffff8a8d82df RDI: ffffffff9123c9f8 RBP: ffffffff9123c9e0 R08: 0000000000000001 R09: 000000000000002c R10: 0000000000000200 R11: 0000000000000000 R12: dead000000000122 R13: ffff888034b6c400 R14: 000000000000001c R15: ffff888034b6c400 FS: 00007f8896bfc6c0(0000) GS:ffff888123eec000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3aafb5da08 CR3: 0000000045f65000 CR4: 00000000003526f0 Call Trace: mep_delete_implementation+0x292/0x340 net/bridge/br_cfm.c:591 br_cfm_port_del+0x14f/0x1e0 net/bridge/br_cfm.c:872 del_nbp+0x168/0xd50 net/bridge/br_if.c:348 br_dev_delete+0x96/0x1c0 net/bridge/br_if.c:387 rtnl_delete_link net/core/rtnetlink.c:3600 [inline] rtnl_dellink+0x463/0xb40 net/core/rtnetlink.c:3643 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7076 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] sock_write_iter+0x53a/0x5b0 net/socket.c:1241 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x1f8/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8895d9e0d9 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:00007f8896bfc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8896025fa0 RCX: 00007f8895d9e0d9 RDX: 0000000000000024 RSI: 0000200000000000 RDI: 0000000000000004 RBP: 00007f8895e35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8896026038 R14: 00007f8896025fa0 R15: 00007ffc834d3838 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__hlist_del include/linux/list.h:1029 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:599 [inline] RIP: 0010:br_del_frame+0x106/0x1a0 net/bridge/br_input.c:482 Code: 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 87 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 65 18 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 76 49 89 1c 24 48 85 db 74 24 e8 36 f0 7c f7 48 8d RSP: 0018:ffffc900054cf280 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900065b9000 RDX: 1bd5a00000000024 RSI: ffffffff8a8d82df RDI: ffffffff9123c9f8 RBP: ffffffff9123c9e0 R08: 0000000000000001 R09: 000000000000002c R10: 0000000000000200 R11: 0000000000000000 R12: dead000000000122 R13: ffff888034b6c400 R14: 000000000000001c R15: ffff888034b6c400 FS: 00007f8896bfc6c0(0000) GS:ffff888123eec000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564ab0cc0a78 CR3: 0000000045f65000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 00 fc add %bh,%ah 2: ff lcall (bad) 3: df 48 89 fisttps -0x77(%rax) 6: fa cli 7: 48 c1 ea 03 shr $0x3,%rdx b: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) f: 0f 85 87 00 00 00 jne 0x9c 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 4c 8b 65 18 mov 0x18(%rbp),%r12 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 75 76 jne 0xa6 30: 49 89 1c 24 mov %rbx,(%r12) 34: 48 85 db test %rbx,%rbx 37: 74 24 je 0x5d 39: e8 36 f0 7c f7 call 0xf77cf074 3e: 48 rex.W 3f: 8d .byte 0x8d