From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+4d7cd7dd0ce1aa8d5c65@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [isofs?] KASAN: slab-out-of-bounds Read in isofs_fh_to_parent
Date: Fri, 4 Apr 2025 10:28:49 +0800 [thread overview]
Message-ID: <tencent_0AEAEC8ECFCC7A2E6CC02DC16FBC9410E80A@qq.com> (raw)
In-Reply-To: <67eee51c.050a0220.9040b.0240.GAE@google.com>
#syz test
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 3e092ae6d142..a31c0291a473 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -344,7 +344,7 @@ static int handle_to_path(int mountdirfd, struct file_handle __user *ufh,
goto out_path;
}
if ((f_handle.handle_bytes > MAX_HANDLE_SZ) ||
- (f_handle.handle_bytes == 0)) {
+ (f_handle.handle_bytes < 16)) {
retval = -EINVAL;
goto out_path;
}
next prev parent reply other threads:[~2025-04-04 2:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-03 19:44 syzbot
2025-04-04 2:28 ` Edward Adam Davis [this message]
2025-04-04 3:18 ` syzbot
2025-04-04 4:40 ` Edward Adam Davis
2025-04-04 5:28 ` syzbot
2025-04-04 5:31 ` [PATCH] isofs: Prevent the use of too small fid Edward Adam Davis
2025-04-04 10:32 ` Jan Kara
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