[syzbot] [net?] [afs?] WARNING in rxrpc_send_data

[syzbot]

syzbot has bisected this issue to:

commit b341a0263b1b804d329f864c2dc24815364510ec
Author: David Howells <dhowells at redhat.com>
Date:   Wed Dec 4 07:46:46 2024 +0000

    rxrpc: Implement progressive transmission queue struct

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17bbeb30580000
start commit:   e58b4771af2b Merge branch 'vxlan-support-user-defined-rese..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=147beb30580000
console output: https://syzkaller.appspot.com/x/log.txt?x=107beb30580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1362a5aee630ff34
dashboard link: https://syzkaller.appspot.com/bug?extid=ff11be94dfcd7a5af8da
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14cb93e8580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15a3d4df980000

Reported-by: syzbot+ff11be94dfcd7a5af8da at syzkaller.appspotmail.com
Fixes: b341a0263b1b ("rxrpc: Implement progressive transmission queue struct")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection