From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+71abe7ab2b70bca770fd@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] general protection fault in put_page (3)
Date: Sat, 2 Nov 2024 07:52:05 +0800 [thread overview]
Message-ID: <20241101235205.2735-1-hdanton@sina.com> (raw)
In-Reply-To: <67251378.050a0220.3c8d68.08cb.GAE@google.com>
On Fri, 01 Nov 2024 10:44:24 -0700
> syzbot found the following issue on:
>
> HEAD commit: f9f24ca362a4 Add linux-next specific files for 20241031
> git tree: linux-next
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=153e5540580000
#syz test
--- x/lib/iov_iter.c
+++ y/lib/iov_iter.c
@@ -1727,6 +1727,10 @@ static ssize_t iov_iter_extract_bvec_pag
(*pages)[k++] = bv.bv_page;
size += bv.bv_len;
+ if (size > maxsize) {
+ size = maxsize;
+ break;
+ }
if (k >= maxpages)
break;
--
next prev parent reply other threads:[~2024-11-01 23:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-01 17:44 syzbot
2024-11-01 23:52 ` Hillf Danton [this message]
2024-11-02 0:18 ` syzbot
2024-11-02 0:05 ` Ming Lei
2024-11-02 0:43 ` syzbot
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