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authorZhihao Cheng <chengzhihao1@huawei.com>2020-06-01 17:10:36 +0800
committerRichard Weinberger <richard@nod.at>2020-09-17 22:55:41 +0200
commitf2aae745b82c842221f4f233051f9ac641790959 (patch)
tree4091cc20db14a01b693ace43b6206ad824d1816d /fs/ubifs/orphan.c
parente4c26faa426c17274884f759f708bc9ee22fd59a (diff)
downloadlinux-f2aae745b82c842221f4f233051f9ac641790959.tar.bz2
ubifs: xattr: Fix some potential memory leaks while iterating entries
Fix some potential memory leaks in error handling branches while iterating xattr entries. For example, function ubifs_tnc_remove_ino() forgets to free pxent if it exists. Similar problems also exist in ubifs_purge_xattrs(), ubifs_add_orphan() and ubifs_jnl_write_inode(). Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Cc: <stable@vger.kernel.org> Fixes: 1e51764a3c2ac05a2 ("UBIFS: add new flash file system") Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/orphan.c')
-rw-r--r--fs/ubifs/orphan.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index 2c294085ffed..0fb61956146d 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -173,6 +173,7 @@ int ubifs_add_orphan(struct ubifs_info *c, ino_t inum)
err = PTR_ERR(xent);
if (err == -ENOENT)
break;
+ kfree(pxent);
return err;
}
@@ -182,6 +183,7 @@ int ubifs_add_orphan(struct ubifs_info *c, ino_t inum)
xattr_orphan = orphan_add(c, xattr_inum, orphan);
if (IS_ERR(xattr_orphan)) {
+ kfree(pxent);
kfree(xent);
return PTR_ERR(xattr_orphan);
}