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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2011-01-17 09:22:47 +0900
committerJames Morris <jmorris@namei.org>2011-01-19 09:53:53 +1100
commit35576eab390df313095306e2a8216134910e7014 (patch)
treec35b52f6797ce69091c3e3bc596783f45e19496a /security
parent40c1001792de63e0f90e977eb05393fd71f78692 (diff)
downloadlinux-linaro-35576eab390df313095306e2a8216134910e7014.tar.gz
trusted-keys: another free memory bugfix
TSS_rawhmac() forgot to call va_end()/kfree() when data == NULL and forgot to call va_end() when crypto_shash_update() < 0. Fix these bugs by escaping from the loop using "break" (rather than "return"/"goto") in order to make sure that va_end()/kfree() are always called. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/keys/trusted_defined.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/security/keys/trusted_defined.c b/security/keys/trusted_defined.c
index 932f8687df1..7b217958906 100644
--- a/security/keys/trusted_defined.c
+++ b/security/keys/trusted_defined.c
@@ -101,11 +101,13 @@ static int TSS_rawhmac(unsigned char *digest, const unsigned char *key,
if (dlen == 0)
break;
data = va_arg(argp, unsigned char *);
- if (data == NULL)
- return -EINVAL;
+ if (data == NULL) {
+ ret = -EINVAL;
+ break;
+ }
ret = crypto_shash_update(&sdesc->shash, data, dlen);
if (ret < 0)
- goto out;
+ break;
}
va_end(argp);
if (!ret)