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authorWei Fang <fangwei1@huawei.com>2015-09-29 06:23:55 +0300
committerBrian Norris <computersforpeace@gmail.com>2015-10-05 00:30:50 +0300
commiteb042ec35956de2684de2a05a814cd15efe570ca (patch)
treecff4d30836e4f892dee29c12e2dfaf4f8ce88a25 /fs/jffs2
parentd54e88011d0a5fb48d9bb60fede3e83375c75841 (diff)
downloadlinux-eb042ec35956de2684de2a05a814cd15efe570ca.tar.xz
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 <fangwei1@huawei.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'fs/jffs2')
-rw-r--r--fs/jffs2/readinode.c6
1 files changed, 5 insertions, 1 deletions
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);