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(parent: 54cce8e) | patch
crypto: ccree - Fix use after free in cc_cipher_exit()
authorJianglei Nie <niejianglei2021@163.com>
Thu, 3 Mar 2022 02:23:37 +0000 (10:23 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 9 Mar 2022 03:12:31 +0000 (15:12 +1200)
commit3d950c34074ed74d2713c3856ba01264523289e6
tree10ce50fbb85505349b1e0560c588fbf4c8b13993tree | snapshot
parent54cce8ecb9254f971b40a72911c6da403720a2d2commit | diff
crypto: ccree - Fix use after free in cc_cipher_exit()

kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But
ctx_p->user.key is still used in the next line, which will lead to a
use after free.

We can call kfree_sensitive() after dev_dbg() to avoid the uaf.

Fixes: 63ee04c8b491 ("crypto: ccree - add skcipher support")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/ccree/cc_cipher.c diff | blob | history
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