| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.13 16/43] ovl: add NULL check in ovl_alloc_inode | Date | Tue, 31 Oct 2017 10:55:36 +0100 |
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4.13-stable review patch. If anyone has any objections, please let me know.
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From: Hirofumi Nakagawa <nklabs@gmail.com>
commit b3885bd6edb41b91a0e3976469f72ae31bfb8d95 upstream.
This was detected by fault injection test
Signed-off-by: Hirofumi Nakagawa <nklabs@gmail.com> Fixes: 13cf199d0088 ("ovl: allocate an ovl_inode struct") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/overlayfs/super.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(str { 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;
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