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 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: 2914 Comm: kworker/u4:8 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:987 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:513 [inline] RIP: 0010:br_del_frame+0xd1/0x150 net/bridge/br_input.c:463 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 79 88 75 f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 00 89 75 f8 4d 89 37 4d 85 f6 74 RSP: 0018:ffffc9000bb27870 EFLAGS: 00010a06 RAX: 1bd5a00000000024 RBX: ffffffff8e8e1700 RCX: ffff88802be01e00 RDX: 0000000000000000 RSI: ffffffff8e8e16e8 RDI: ffffffff8e8e16f8 RBP: 000000000000001d R08: ffffffff911eb50f R09: 1ffffffff223d6a1 R10: dffffc0000000000 R11: fffffbfff223d6a2 R12: dffffc0000000000 R13: 1ffffffff1d1c2e0 R14: 0000000000000000 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005596e0dda138 CR3: 000000002f613000 CR4: 00000000003506e0 Call Trace: br_cfm_port_del+0x116/0x1b0 net/bridge/br_cfm.c:872 del_nbp+0x167/0x9e0 net/bridge/br_if.c:347 br_dev_delete+0x6e/0x130 net/bridge/br_if.c:386 default_device_exit_batch+0x8c0/0xa00 net/core/dev.c:11779 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x785/0xb00 net/core/net_namespace.c:656 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__hlist_del include/linux/list.h:987 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:513 [inline] RIP: 0010:br_del_frame+0xd1/0x150 net/bridge/br_input.c:463 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 79 88 75 f8 4c 8b 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 00 89 75 f8 4d 89 37 4d 85 f6 74 RSP: 0018:ffffc9000bb27870 EFLAGS: 00010a06 RAX: 1bd5a00000000024 RBX: ffffffff8e8e1700 RCX: ffff88802be01e00 RDX: 0000000000000000 RSI: ffffffff8e8e16e8 RDI: ffffffff8e8e16f8 RBP: 000000000000001d R08: ffffffff911eb50f R09: 1ffffffff223d6a1 R10: dffffc0000000000 R11: fffffbfff223d6a2 R12: dffffc0000000000 R13: 1ffffffff1d1c2e0 R14: 0000000000000000 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005573659dd000 CR3: 000000007df6e000 CR4: 00000000003506f0 ---------------- 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 79 88 75 f8 call 0xf8758899 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 00 89 75 f8 call 0xf8758939 39: 4d 89 37 mov %r14,(%r15) 3c: 4d 85 f6 test %r14,%r14 3f: 74 .byte 0x74