netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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 BUG: unable to handle page fault for address: ffffffffffffffe0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD db82067 P4D db82067 PUD db84067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 21623 Comm: kworker/u8:10 Not tainted 6.13.0-rc5-syzkaller-g0bc21e701a6f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: netns cleanup_net RIP: 0010:__netdev_find_adj net/core/dev.c:7128 [inline] RIP: 0010:__netdev_adjacent_dev_remove+0x10c/0x720 net/core/dev.c:7924 Code: 00 00 48 8b 43 20 48 8d 58 e0 49 39 c4 0f 84 19 05 00 00 e8 f6 50 9b f8 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 46 05 00 00 <48> 3b 2b 75 b8 e8 da 50 9b f8 48 85 db 0f 84 f4 04 00 00 e8 cc 50 RSP: 0018:ffffc9000c83f8c8 EFLAGS: 00010246 RAX: 1ffffffffffffffc RBX: ffffffffffffffe0 RCX: 1ffff92001907f1b RDX: ffff88802a12da00 RSI: ffffffff88fdfeca RDI: ffff8880272b3da0 RBP: ffff88807b598000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000004 R12: ffff888078fe41a8 R13: ffff888078fe4000 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffe0 CR3: 0000000027cba000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __netdev_adjacent_dev_unlink_lists net/core/dev.c:7983 [inline] __netdev_adjacent_dev_unlink_neighbour net/core/dev.c:8000 [inline] __netdev_upper_dev_unlink+0x129/0x430 net/core/dev.c:8150 netdev_upper_dev_unlink+0x84/0xb0 net/core/dev.c:8179 del_nbp+0x712/0xd30 net/bridge/br_if.c:363 br_dev_delete+0x99/0x1a0 net/bridge/br_if.c:386 br_net_exit_batch_rtnl+0x116/0x1f0 net/bridge/br.c:369 cleanup_net+0x548/0xbd0 net/core/net_namespace.c:641 process_one_work+0x958/0x1b30 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: CR2: ffffffffffffffe0 ---[ end trace 0000000000000000 ]--- RIP: 0010:__netdev_find_adj net/core/dev.c:7128 [inline] RIP: 0010:__netdev_adjacent_dev_remove+0x10c/0x720 net/core/dev.c:7924 Code: 00 00 48 8b 43 20 48 8d 58 e0 49 39 c4 0f 84 19 05 00 00 e8 f6 50 9b f8 48 89 d8 48 c1 e8 03 42 80 3c 38 00 0f 85 46 05 00 00 <48> 3b 2b 75 b8 e8 da 50 9b f8 48 85 db 0f 84 f4 04 00 00 e8 cc 50 RSP: 0018:ffffc9000c83f8c8 EFLAGS: 00010246 RAX: 1ffffffffffffffc RBX: ffffffffffffffe0 RCX: 1ffff92001907f1b RDX: ffff88802a12da00 RSI: ffffffff88fdfeca RDI: ffff8880272b3da0 RBP: ffff88807b598000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000004 R12: ffff888078fe41a8 R13: ffff888078fe4000 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffe0 CR3: 0000000027cba000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 8b 43 20 mov 0x20(%rbx),%rax 6: 48 8d 58 e0 lea -0x20(%rax),%rbx a: 49 39 c4 cmp %rax,%r12 d: 0f 84 19 05 00 00 je 0x52c 13: e8 f6 50 9b f8 call 0xf89b510e 18: 48 89 d8 mov %rbx,%rax 1b: 48 c1 e8 03 shr $0x3,%rax 1f: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 24: 0f 85 46 05 00 00 jne 0x570 * 2a: 48 3b 2b cmp (%rbx),%rbp <-- trapping instruction 2d: 75 b8 jne 0xffffffe7 2f: e8 da 50 9b f8 call 0xf89b510e 34: 48 85 db test %rbx,%rbx 37: 0f 84 f4 04 00 00 je 0x531 3d: e8 .byte 0xe8 3e: cc int3 3f: 50 push %rax