Hello, syzbot found the following issue on: HEAD commit: a70385240892 Merge tag 'perf_urgent_for_v6.1_rc2' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=147717d2880000 kernel config: https://syzkaller.appspot.com/x/.config?x=ea03ca45176080bc dashboard link: https://syzkaller.appspot.com/bug?extid=d8c77f7232bfdb254e37 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5e17f1e83cf3/disk-a7038524.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f8ef729877f7/vmlinux-a7038524.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d8c77f7232bfdb254e37@xxxxxxxxxxxxxxxxxxxxxxxxx bond0 (unregistering): (slave bond3): Releasing backup interface bond0 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 1 PID: 20974 at net/core/dev.c:10871 unregister_netdevice_many+0x13ba/0x1930 net/core/dev.c:10871 Modules linked in: CPU: 0 PID: 20974 Comm: syz-executor.1 Not tainted 6.1.0-rc1-syzkaller-00454-ga70385240892 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:unregister_netdevice_many+0x13ba/0x1930 net/core/dev.c:10871 Code: 0b e9 27 f1 ff ff e8 75 08 24 fa be 04 00 00 00 4c 89 f7 e8 28 96 ab fc e9 42 fb ff ff 48 89 dd e9 1c f9 ff ff e8 56 08 24 fa <0f> 0b e9 f0 f9 ff ff e8 4a 08 24 fa 0f b6 1d dc e5 73 06 31 ff 89 RSP: 0018:ffffc9000b4ff268 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88807627c0b0 RCX: ffffc90004743000 RDX: 0000000000040000 RSI: ffffffff8758834a RDI: 0000000000000005 RBP: ffff88801ecf8080 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 000000000008c07e R12: 0000000000000000 R13: ffff88801ecf8080 R14: ffff88807627c000 R15: dffffc0000000000 FS: 00007f42ed863700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f220e57f1b8 CR3: 0000000036be9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000b002800 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <TASK> rtnl_delete_link net/core/rtnetlink.c:3123 [inline] rtnl_dellink+0x354/0xa90 net/core/rtnetlink.c:3174 rtnetlink_rcv_msg+0x43a/0xca0 net/core/rtnetlink.c:6091 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f42ec68b5f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f42ed863168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f42ec7abf80 RCX: 00007f42ec68b5f9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f42ec6e67b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f42eccdfb1f R14: 00007f42ed863300 R15: 0000000000022000 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
