The patch titled
Subject: ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: ChenXiaoSong <chenxiaosong2@xxxxxxxxxx>
Subject: ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3
Date: Sat, 9 Jul 2022 14:45:11 +0800
Cleanup quggested by Hawkins Jiawei
Link: https://lkml.kernel.org/r/20220709064511.3304299-1-chenxiaosong2@xxxxxxxxxx
Signed-off-by: ChenXiaoSong <chenxiaosong2@xxxxxxxxxx>
Signed-off-by: Hawkins Jiawei <yin31149@xxxxxxxxx>
Cc: Anton Altaparmakov <anton@xxxxxxxxxx>
Cc: Yongqiang Liu <liuyongqiang13@xxxxxxxxxx>
Cc: Zhang Xiaoxu <zhangxiaoxu5@xxxxxxxxxx>
Cc: Zhang Yi <yi.zhang@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ntfs/attrib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ntfs/attrib.c~ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3
+++ a/fs/ntfs/attrib.c
@@ -595,7 +595,7 @@ static int ntfs_attr_find(const ATTR_TYP
u8 *mrec_end = (u8 *)ctx->mrec +
le32_to_cpu(ctx->mrec->bytes_allocated);
u8 *name_end = (u8 *)a + le16_to_cpu(a->name_offset) +
- a->name_length;
+ a->name_length * sizeof(ntfschar);
if ((u8*)a < (u8*)ctx->mrec || (u8*)a > mrec_end ||
name_end > mrec_end)
break;
_
Patches currently in -mm which might be from chenxiaosong2@xxxxxxxxxx are
ntfs-fix-use-after-free-in-ntfs_ucsncmp.patch
ntfs-fix-use-after-free-in-ntfs_ucsncmp-v3.patch
