[PATCH] ocfs2: use kzalloc for quota recovery bitmap allocation
Tristan Madani <[email protected]>
| Newsgroups | dev.linux.lists.ocfs2-devel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Tristan Madani <[email protected]> ocfs2 quota recovery allocates a bitmap buffer with kmalloc and does not fully initialize it. This can lead to use of uninitialized bits during quota recovery from a corrupted filesystem image. Use kzalloc instead to ensure the bitmap is zero-initialized. Reported-by: [email protected] Cc: [email protected] Signed-off-by: Tristan Madani <[email protected]> --- fs/ocfs2/quota_local.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index 12cbb4fccda0d..f55810c59b1b1 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -302,7 +302,7 @@ static int ocfs2_add_recovery_chunk(struct super_block *sb, if (!rc) return -ENOMEM; rc->rc_chunk = chunk; - rc->rc_bitmap = kmalloc(sb->s_blocksize, GFP_NOFS); + rc->rc_bitmap = kzalloc(sb->s_blocksize, GFP_NOFS); if (!rc->rc_bitmap) { kfree(rc); return -ENOMEM; -- 2.47.3