From eb042ec35956de2684de2a05a814cd15efe570ca Mon Sep 17 00:00:00 2001 From: Wei Fang Date: Tue, 29 Sep 2015 11:23:55 +0800 Subject: jffs2: fix a memleak in read_direntry() Need to free the memory allocated for 'fd' if failed to read all of the remainder name. Signed-off-by: Wei Fang Signed-off-by: Brian Norris --- fs/jffs2/readinode.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index 28e0aab42bc3..bfebbf13698c 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -660,8 +660,12 @@ static inline int read_direntry(struct jffs2_sb_info *c, struct jffs2_raw_node_r err = jffs2_flash_read(c, (ref_offset(ref)) + read, rd->nsize - already, &read, &fd->name[already]); - if (unlikely(read != rd->nsize - already) && likely(!err)) + if (unlikely(read != rd->nsize - already) && likely(!err)) { + jffs2_free_full_dirent(fd); + JFFS2_ERROR("short read: wanted %d bytes, got %zd\n", + rd->nsize - already, read); return -EIO; + } if (unlikely(err)) { JFFS2_ERROR("read remainder of name: error %d\n", err); -- cgit v1.2.3