Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 04:31:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

ubifs: Fix memory leak in read_znode() error path

Browse Source 
In read_znode(), the indexing node 'idx' is allocated by kmalloc().
However, it is not deallocated in the following execution if
ubifs_node_check_hash() fails, leading to a memory leak bug. To fix this
issue, free 'idx' before returning the error.

Fixes: 16a26b20d2 ("ubifs: authentication: Add hashes to index nodes")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Wenwen Wang 2019-08-19 22:03:46 -05:00 committed by Richard Weinberger
parent 8615b94f02
commit ce4d8b16e6
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/ubifs/tnc_misc.c
View File

@ -284,6 +284,7 @@ static int read_znode(struct ubifs_info *c, struct ubifs_zbranch *zzbr,
err = ubifs_node_check_hash(c, idx, zzbr->hash); err = ubifs_node_check_hash(c, idx, zzbr->hash);
if (err) { if (err) {
ubifs_bad_hash(c, idx, zzbr->hash, lnum, offs); ubifs_bad_hash(c, idx, zzbr->hash, lnum, offs);
kfree(idx);
return err; return err;
} }