[PATCH 09/14] fs/ntfs3: Add rough attr alloc_size check
From: Konstantin Komarov
Date: Thu Aug 22 2024 - 11:54:10 EST
Reported-by: syzbot+c6d94bedd910a8216d25@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
---
fs/ntfs3/record.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c
index 6c76503edc20..82950a267d4c 100644
--- a/fs/ntfs3/record.c
+++ b/fs/ntfs3/record.c
@@ -334,6 +334,9 @@ struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr)
if (attr->nres.c_unit)
return NULL;
+
+ if (alloc_size > mi->sbi->volume.size)
+ return NULL;
}
return attr;
--
2.34.1