From: syzbot <syzbot+4f9c823a6f63d87491ba@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in dtDelete
Date: Thu, 17 Apr 2025 20:25:57 -0700 [thread overview]
Message-ID: <6801c645.050a0220.243d89.0016.GAE@google.com> (raw)
In-Reply-To: <67d9cf78.050a0220.3657bb.000f.GAE@google.com>
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Subject: Re: [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in dtDelete
Author: richard120310@gmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git e3a854b577cb
Signed-off-by: I Hsin Cheng <richard120310@gmail.com>
---
fs/jfs/jfs_dtree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 8f85177f284b..0a209b30686a 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -2130,7 +2130,7 @@ int dtDelete(tid_t tid,
stbl = DT_GETSTBL(np);
ldtentry =
(struct ldtentry *) & np->
- slot[stbl[0]];
+ slot[stbl[0] % np->header.maxslot];
next_index =
le32_to_cpu(ldtentry->index);
DT_PUTPAGE(nmp);
--
2.43.0
next prev parent reply other threads:[~2025-04-18 3:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-18 19:54 [syzbot] [jfs?] UBSAN: array-index-out-of-bounds in dtDelete syzbot
2025-04-18 3:25 ` syzbot [this message]
2025-09-18 21:04 ` [PATCH] jfs: Add check for array bounds " Pedro Demarchi Gomes
2025-09-18 21:27 ` [syzbot] [jfs?] UBSAN: array-index-out-of-bounds " syzbot
2025-09-19 15:23 ` Forwarded: " syzbot
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