Commit c3efeaa3 authored by Al Viro's avatar Al Viro Committed by Greg Kroah-Hartman

getname_kernel() needs to make sure that ->name != ->iname in long case

commit 30ce4d19 upstream.

missed it in "kill struct filename.separate" several years ago.

Cc: stable@vger.kernel.org
Signed-off-by: 's avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: 's avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent adea72f0
......@@ -222,9 +222,10 @@ getname_kernel(const char * filename)
if (len <= EMBEDDED_NAME_MAX) {
result->name = (char *)result->iname;
} else if (len <= PATH_MAX) {
const size_t size = offsetof(struct filename, iname[1]);
struct filename *tmp;
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
tmp = kmalloc(size, GFP_KERNEL);
if (unlikely(!tmp)) {
__putname(result);
return ERR_PTR(-ENOMEM);
......
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