[PATCH 1/1] fs/squashfs: fix sqfs_read_sblk()

Setting sblk = NULL has no effect on the caller. We want to set *sblk = NULL if an error occurrs to avoid usage after free.

Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- fs/squashfs/sqfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/squashfs/sqfs.c b/fs/squashfs/sqfs.c index b07c41e911..18cd386abb 100644 --- a/fs/squashfs/sqfs.c +++ b/fs/squashfs/sqfs.c @@ -49,7 +49,7 @@ static int sqfs_read_sblk(struct squashfs_super_block **sblk)

if (sqfs_disk_read(0, 1, *sblk) != 1) { free(*sblk); - sblk = NULL; + *sblk = NULL; return -EINVAL; }