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| author | Sheng Yong <shengyong1@huawei.com> | 2019-02-14 14:46:36 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-10 07:08:58 +0100 |
| commit | 6df0b3ebdade371d94663353654fa6d6f0d1ca1a (patch) | |
| tree | dc9b217143fe126b6c816f41550c18c18d5a1158 | |
| parent | 27f2f4877a004fa0360d63b8c5baa3ec90e6f022 (diff) | |
| download | talos-obmc-linux-6df0b3ebdade371d94663353654fa6d6f0d1ca1a.tar.gz talos-obmc-linux-6df0b3ebdade371d94663353654fa6d6f0d1ca1a.zip | |
staging: erofs: fix memleak of inode's shared xattr array
commit 3b1b5291f79d040d549d7c746669fc30e8045b9b upstream.
If it fails to read a shared xattr page, the inode's shared xattr array
is not freed. The next time the inode's xattr is accessed, the previously
allocated array is leaked.
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Fixes: b17500a0fdba ("staging: erofs: introduce xattr & acl support")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/erofs/xattr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/staging/erofs/xattr.c b/drivers/staging/erofs/xattr.c index e30de2476fd0..04eb75bbe9a3 100644 --- a/drivers/staging/erofs/xattr.c +++ b/drivers/staging/erofs/xattr.c @@ -111,8 +111,11 @@ static int init_inode_xattrs(struct inode *inode) it.page = erofs_get_meta_page(sb, ++it.blkaddr, S_ISDIR(inode->i_mode)); - if (IS_ERR(it.page)) + if (IS_ERR(it.page)) { + kfree(vi->xattr_shared_xattrs); + vi->xattr_shared_xattrs = NULL; return PTR_ERR(it.page); + } it.kaddr = kmap_atomic(it.page); atomic_map = true; |
