netdev - Re: [syzbot] [net?] KASAN: slab-use-after-free Read in tcp_prune_ofo

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <6876f866.a00a0220.105e77.0001.GAE@google.com>
Date: Tue, 15 Jul 2025 17:55:02 -0700
From: syzbot <syzbot+9d2a6ef56c3805144bf0@...kaller.appspotmail.com>
To: davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com, 
	hdanton@...a.com, horms@...nel.org, kuba@...nel.org, kuniyu@...gle.com, 
	linux-kernel@...r.kernel.org, ncardwell@...gle.com, netdev@...r.kernel.org, 
	pabeni@...hat.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Read in tcp_prune_ofo_queue

syzbot has bisected this issue to:

commit 1d2fbaad7cd8cc96899179f9898ad2787a15f0a0
Author: Eric Dumazet <edumazet@...gle.com>
Date:   Fri Jul 11 11:40:05 2025 +0000

    tcp: stronger sk_rcvbuf checks

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13b7098c580000
start commit:   55e8757c6962 Merge branch 'net-mctp-improved-bind-handling'
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1077098c580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17b7098c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f8235fb7e74dd7f6
dashboard link: https://syzkaller.appspot.com/bug?extid=9d2a6ef56c3805144bf0
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12494382580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=103327d4580000

Reported-by: syzbot+9d2a6ef56c3805144bf0@...kaller.appspotmail.com
Fixes: 1d2fbaad7cd8 ("tcp: stronger sk_rcvbuf checks")

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