Hello, syzbot found the following issue on: HEAD commit: 80bd9028feca Add linux-next specific files for 20230131 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=10a0f7ae480000 kernel config: https://syzkaller.appspot.com/x/.config?x=904dc2f450eaad4a dashboard link: https://syzkaller.appspot.com/bug?extid=04a8437497bcfb4afa95 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/924618188238/disk-80bd9028.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7a03cf86e545/vmlinux-80bd9028.xz kernel image: https://storage.googleapis.com/syzbot-assets/568e80043a41/bzImage-80bd9028.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+04a8437497bcfb4afa95@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ name 'gss_krb5_enctypes' WARNING: CPU: 0 PID: 6187 at fs/proc/generic.c:712 remove_proc_entry+0x38d/0x460 fs/proc/generic.c:712 Modules linked in: CPU: 0 PID: 6187 Comm: syz-executor.4 Not tainted 6.2.0-rc6-next-20230131-syzkaller-09515-g80bd9028feca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:remove_proc_entry+0x38d/0x460 fs/proc/generic.c:712 Code: e9 6d fe ff ff e8 63 f1 7c ff 48 c7 c7 e0 6d 98 8c e8 47 ba 0b 08 e8 52 f1 7c ff 4c 89 e6 48 c7 c7 c0 85 5e 8a e8 53 8c 44 ff <0f> 0b e9 a4 fe ff ff e8 37 f1 7c ff 48 8d bd d8 00 00 00 48 b8 00 RSP: 0018:ffffc90015dcf8c8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 1ffff92002bb9f1b RCX: ffffc9000c579000 RDX: 0000000000040000 RSI: ffffffff81692aec RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8b75c440 R13: dffffc0000000000 R14: dffffc0000000000 R15: fffffbfff1c6d918 FS: 00007fe943910700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2d14a16984 CR3: 0000000029c4e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> destroy_krb5_enctypes_proc_entry net/sunrpc/auth_gss/svcauth_gss.c:1543 [inline] gss_svc_shutdown_net+0x7d/0x2b0 net/sunrpc/auth_gss/svcauth_gss.c:2120 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169 setup_net+0x9bd/0xe60 net/core/net_namespace.c:356 copy_net_ns+0x320/0x6b0 net/core/net_namespace.c:483 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x410/0x500 kernel/nsproxy.c:179 copy_process+0x311d/0x76b0 kernel/fork.c:2272 kernel_clone+0xeb/0x9a0 kernel/fork.c:2684 __do_sys_clone+0xba/0x100 kernel/fork.c:2825 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe942c8c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007fe943910118 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fe942dabf80 RCX: 00007fe942c8c0c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000071801000 RBP: 00007fe942ce7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007ffe8ccafb1f R14: 00007fe943910300 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.