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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2011-01-17 09:25:34 +0900 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-01-19 09:53:56 +1100 |
| commit | 0e7491f685cbc962f2ef977f7b5f8ed0b3100e88 (patch) | |
| tree | 44d27bf6f64b974eb8d177316c3fd77f66324b13 /security/keys | |
| parent | 35576eab390df313095306e2a8216134910e7014 (diff) | |
| download | lwn-0e7491f685cbc962f2ef977f7b5f8ed0b3100e88.tar.gz lwn-0e7491f685cbc962f2ef977f7b5f8ed0b3100e88.zip | |
trusted-keys: check for NULL before using it
TSS_rawhmac() checks for data != NULL before using it.
We should do the same thing for TSS_authhmac().
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/keys')
| -rw-r--r-- | security/keys/trusted_defined.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/security/keys/trusted_defined.c b/security/keys/trusted_defined.c index 7b2179589063..f7d06776faf0 100644 --- a/security/keys/trusted_defined.c +++ b/security/keys/trusted_defined.c @@ -148,6 +148,11 @@ static int TSS_authhmac(unsigned char *digest, const unsigned char *key, if (dlen == 0) break; data = va_arg(argp, unsigned char *); + if (!data) { + ret = -EINVAL; + va_end(argp); + goto out; + } ret = crypto_shash_update(&sdesc->shash, data, dlen); if (ret < 0) { va_end(argp); |