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| author | Hirofumi Nakagawa <nklabs@gmail.com> | 2017-09-26 03:09:53 +0900 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-10-19 16:19:51 +0200 |
| commit | b3885bd6edb41b91a0e3976469f72ae31bfb8d95 (patch) | |
| tree | 940f4ed3bf9c0bd235caa39178dff14dbdf75dee | |
| parent | 33d930e59a98fa10a0db9f56c7fa2f21a4aef9b9 (diff) | |
| download | linux-b3885bd6edb41b91a0e3976469f72ae31bfb8d95.tar.gz linux-b3885bd6edb41b91a0e3976469f72ae31bfb8d95.tar.bz2 linux-b3885bd6edb41b91a0e3976469f72ae31bfb8d95.zip | |
ovl: add NULL check in ovl_alloc_inode
This was detected by fault injection test
Signed-off-by: Hirofumi Nakagawa <nklabs@gmail.com>
Fixes: 13cf199d0088 ("ovl: allocate an ovl_inode struct")
Cc: <stable@vger.kernel.org> # v4.13
| -rw-r--r-- | fs/overlayfs/super.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index 092d150643c1..f5738e96a052 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(struct super_block *sb) { struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL); + if (!oi) + return NULL; + oi->cache = NULL; oi->redirect = NULL; oi->version = 0; |