getname_kernel() needs to make sure that ->name != ->iname in long case
commit 30ce4d1903
upstream.
missed it in "kill struct filename.separate" several years ago.
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
adea72f0e5
commit
c3efeaa3b1
|
@ -222,9 +222,10 @@ getname_kernel(const char * filename)
|
||||||
if (len <= EMBEDDED_NAME_MAX) {
|
if (len <= EMBEDDED_NAME_MAX) {
|
||||||
result->name = (char *)result->iname;
|
result->name = (char *)result->iname;
|
||||||
} else if (len <= PATH_MAX) {
|
} else if (len <= PATH_MAX) {
|
||||||
|
const size_t size = offsetof(struct filename, iname[1]);
|
||||||
struct filename *tmp;
|
struct filename *tmp;
|
||||||
|
|
||||||
tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
|
tmp = kmalloc(size, GFP_KERNEL);
|
||||||
if (unlikely(!tmp)) {
|
if (unlikely(!tmp)) {
|
||||||
__putname(result);
|
__putname(result);
|
||||||
return ERR_PTR(-ENOMEM);
|
return ERR_PTR(-ENOMEM);
|
||||||
|
|
Loading…
Reference in New Issue