[PATCH] fix array index out of bound exception

F.A. SULAIMAN
2021-08-11T13:12:31Z

From: "F.A.Sulaiman" <asha.16@itfac.mrt.ac.lk>

Array index out of bound exception occurs when the 'part' variable is passed into the freeSpactTable array,
this can be avoided using pointer arithmetic.

Signed-off-by: F.A. SULAIMAN <asha.16@itfac.mrt.ac.lk>
---
fs/udf/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 2f83c1204e20..d330c7162c3a 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2522,7 +2522,7 @@ static unsigned int udf_count_free(struct super_block *sb)
sbi->s_lvid_bh->b_data;
if (le32_to_cpu(lvid->numOfPartitions) > part) {
accum = le32_to_cpu(
- lvid->freeSpaceTable[part]);
+ (lvid->freeSpaceTable + part));
if (accum == 0xFFFFFFFF)
accum = 0;
}
--
2.17.1