linux-kernel - [syzbot] kernel BUG in rxrpc_destroy_all

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Date:   Tue, 06 Dec 2022 22:37:34 -0800
From:   syzbot <syzbot+e1391a5bf3f779e31237@...kaller.appspotmail.com>
To:     davem@...emloft.net, dhowells@...hat.com, edumazet@...gle.com,
        kuba@...nel.org, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org, marc.dionne@...istor.com,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com
Subject: [syzbot] kernel BUG in rxrpc_destroy_all_locals

Hello,

syzbot found the following issue on:

HEAD commit:    15309fb26b87 net: sfp: clean up i2c-bus property parsing
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=15431383880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=c608c21151db14f2
dashboard link: https://syzkaller.appspot.com/bug?extid=e1391a5bf3f779e31237
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/2919f1040d37/disk-15309fb2.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2fb3e2516436/vmlinux-15309fb2.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5638fcd36798/bzImage-15309fb2.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e1391a5bf3f779e31237@...kaller.appspotmail.com

------------[ cut here ]------------
kernel BUG at net/rxrpc/local_object.c:438!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4101 Comm: kworker/u4:7 Not tainted 6.1.0-rc7-syzkaller-01817-g15309fb26b87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: netns cleanup_net
RIP: 0010:rxrpc_destroy_all_locals+0xe8/0x180 net/rxrpc/local_object.c:438
Code: e8 dd bb 98 f8 48 83 eb 20 49 bd 00 00 00 00 00 fc ff df e8 ca bb 98 f8 48 85 db 75 19 e8 c0 bb 98 f8 4c 89 e7 e8 a8 79 0b 01 <0f> 0b 48 89 ef e8 8e 79 e6 f8 eb be e8 a7 bb 98 f8 48 8d 6b 14 be
RSP: 0018:ffffc9000d8a7be0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880295b3a80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffc9000d8a7b28
RBP: ffff8880494f3814 R08: 0000000000000001 R09: ffffc9000d8a7b2f
R10: fffff52001b14f65 R11: 0000000000000000 R12: ffff8880215f42e8
R13: dffffc0000000000 R14: dffffc0000000000 R15: fffffbfff1c2fe10
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb41eed4620 CR3: 0000000027524000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rxrpc_exit_net+0x174/0x300 net/rxrpc/net_ns.c:128
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169
 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:606
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rxrpc_destroy_all_locals+0xe8/0x180 net/rxrpc/local_object.c:438
Code: e8 dd bb 98 f8 48 83 eb 20 49 bd 00 00 00 00 00 fc ff df e8 ca bb 98 f8 48 85 db 75 19 e8 c0 bb 98 f8 4c 89 e7 e8 a8 79 0b 01 <0f> 0b 48 89 ef e8 8e 79 e6 f8 eb be e8 a7 bb 98 f8 48 8d 6b 14 be
RSP: 0018:ffffc9000d8a7be0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880295b3a80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffc9000d8a7b28
RBP: ffff8880494f3814 R08: 0000000000000001 R09: ffffc9000d8a7b2f
R10: fffff52001b14f65 R11: 0000000000000000 R12: ffff8880215f42e8
R13: dffffc0000000000 R14: dffffc0000000000 R15: fffffbfff1c2fe10
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb41eed4620 CR3: 0000000026e44000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
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