crypto: pcrypt - Fix use after free on padata_free
kobject_put is called from padata_free for the padata kobject.
The kobject's release function frees the padata instance,
so don't call kobject_put for the padata kobject from pcrypt.
Reported-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index de30782..75586f1 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -504,7 +504,6 @@
static void pcrypt_fini_padata(struct padata_pcrypt *pcrypt)
{
- kobject_put(&pcrypt->pinst->kobj);
free_cpumask_var(pcrypt->cb_cpumask->mask);
kfree(pcrypt->cb_cpumask);