bridge0: port 3(vlan0) entered disabled state bridge_slave_1: left allmulticast mode 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 0xdffffc000000000a: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 1 UID: 0 PID: 9232 Comm: kworker/u8:20 Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: netns cleanup_net RIP: 0010:dev_deactivate_queue+0xa4/0x160 net/sched/sch_generic.c:1284 Code: c0 bf 10 8d be 04 05 00 00 48 c7 c2 e0 c2 10 8d e8 41 4e bd f7 48 b8 00 00 00 00 00 fc ff df 49 83 c7 10 4c 89 fb 48 c1 eb 03 <80> 3c 03 00 74 08 4c 89 ff e8 2e 29 4b f8 4d 8b 37 4d 85 f6 74 53 RSP: 0018:ffffc900035ff688 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 000000000000000a RCX: ffff8880678a5a00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff89987d26 R09: 1ffffffff2859901 R10: dffffc0000000000 R11: fffffbfff2859902 R12: ffffffff8fd18580 R13: 1ffff9200090cf50 R14: ffffc900048675d0 R15: 0000000000000056 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f29e2fbc440 CR3: 000000000e734000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netdev_for_each_tx_queue include/linux/netdevice.h:2548 [inline] dev_deactivate_many+0xc8/0xb10 net/sched/sch_generic.c:1357 __dev_close_many+0x1a4/0x300 net/core/dev.c:1547 dev_close_many+0x24e/0x4c0 net/core/dev.c:1585 unregister_netdevice_many_notify+0x530/0x1da0 net/core/dev.c:11451 cleanup_net+0x75d/0xcc0 net/core/net_namespace.c:628 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dev_deactivate_queue+0xa4/0x160 net/sched/sch_generic.c:1284 Code: c0 bf 10 8d be 04 05 00 00 48 c7 c2 e0 c2 10 8d e8 41 4e bd f7 48 b8 00 00 00 00 00 fc ff df 49 83 c7 10 4c 89 fb 48 c1 eb 03 <80> 3c 03 00 74 08 4c 89 ff e8 2e 29 4b f8 4d 8b 37 4d 85 f6 74 53 RSP: 0018:ffffc900035ff688 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: 000000000000000a RCX: ffff8880678a5a00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff89987d26 R09: 1ffffffff2859901 R10: dffffc0000000000 R11: fffffbfff2859902 R12: ffffffff8fd18580 R13: 1ffff9200090cf50 R14: ffffc900048675d0 R15: 0000000000000056 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f83be0635c0 CR3: 000000000e734000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c0 bf 10 8d be 04 05 sarb $0x5,0x4be8d10(%rdi) 7: 00 00 add %al,(%rax) 9: 48 c7 c2 e0 c2 10 8d mov $0xffffffff8d10c2e0,%rdx 10: e8 41 4e bd f7 call 0xf7bd4e56 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 49 83 c7 10 add $0x10,%r15 23: 4c 89 fb mov %r15,%rbx 26: 48 c1 eb 03 shr $0x3,%rbx * 2a: 80 3c 03 00 cmpb $0x0,(%rbx,%rax,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ff mov %r15,%rdi 33: e8 2e 29 4b f8 call 0xf84b2966 38: 4d 8b 37 mov (%r15),%r14 3b: 4d 85 f6 test %r14,%r14 3e: 74 53 je 0x93