Hello, syzbot found the following issue on: HEAD commit: 7fef2edf7cc7 sd: don't mess with SD_MINORS for CONFIG_DEBU.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=147c3b3c300000 kernel config: https://syzkaller.appspot.com/x/.config?x=957eaf08bd3bb8d6 dashboard link: https://syzkaller.appspot.com/bug?extid=3405f46cf7078134383e Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3405f46cf7078134383e@xxxxxxxxxxxxxxxxxxxxxxxxx bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves ------------[ cut here ]------------ name 'use-gss-proxy' WARNING: CPU: 0 PID: 7951 at fs/proc/generic.c:709 remove_proc_entry+0x389/0x460 fs/proc/generic.c:709 Modules linked in: CPU: 0 PID: 7951 Comm: kworker/u4:2 Tainted: G W 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:remove_proc_entry+0x389/0x460 fs/proc/generic.c:709 Code: e9 6d fe ff ff e8 f7 d9 85 ff 48 c7 c7 20 d4 b3 8b e8 fb 96 3d 07 e8 e6 d9 85 ff 4c 89 e6 48 c7 c7 00 2a 9c 89 e8 92 86 f8 06 <0f> 0b e9 a4 fe ff ff e8 cb d9 85 ff 48 8d bd d8 00 00 00 48 b8 00 RSP: 0018:ffffc9000c8efb48 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 1ffff9200191df6b RCX: 0000000000000000 RDX: ffff8880341121c0 RSI: ffffffff815c9ca5 RDI: fffff5200191df5b RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815c3aae R11: 0000000000000000 R12: ffffffff8aa28e40 R13: dffffc0000000000 R14: ffff888000102000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38761a8740 CR3: 000000002c23a000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: destroy_use_gss_proxy_proc_entry net/sunrpc/auth_gss/svcauth_gss.c:1504 [inline] gss_svc_shutdown_net+0x196/0x8c0 net/sunrpc/auth_gss/svcauth_gss.c:1992 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:175 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 --- 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.
