linux-kernel - Re: [syzbot] [io-uring?] WARNING: refcount bug in io_send_zc

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Message-ID: <67de82a2.050a0220.31a16b.002e.GAE@google.com>
Date: Sat, 22 Mar 2025 02:28:02 -0700
From: syzbot <syzbot+cf285a028ffba71b2ef5@...kaller.appspotmail.com>
To: asml.silence@...il.com, axboe@...nel.dk, io-uring@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [io-uring?] WARNING: refcount bug in io_send_zc_cleanup (2)

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+cf285a028ffba71b2ef5@...kaller.appspotmail.com
Tested-by: syzbot+cf285a028ffba71b2ef5@...kaller.appspotmail.com

Tested on:

commit:         e1306007 io_uring/net: fix sendzc double notif flush
git tree:       https://github.com/isilence/linux.git syz/sendzc-cleanup
console output: https://syzkaller.appspot.com/x/log.txt?x=15809c4c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6fa548b75e783182
dashboard link: https://syzkaller.appspot.com/bug?extid=cf285a028ffba71b2ef5
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.