diff options
| -rw-r--r-- | lib/digsig.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/digsig.c b/lib/digsig.c index b67e82c024b3..286d558033e2 100644 --- a/lib/digsig.c +++ b/lib/digsig.c @@ -109,9 +109,13 @@ static int digsig_verify_rsa(struct key *key, datap = pkh->mpi; endp = ukp->data + ukp->datalen; + err = -ENOMEM; + for (i = 0; i < pkh->nmpi; i++) { unsigned int remaining = endp - datap; pkey[i] = mpi_read_from_buffer(datap, &remaining); + if (!pkey[i]) + goto err; datap += remaining; } @@ -168,8 +172,8 @@ err: mpi_free(res); kfree(out1); kfree(out2); - mpi_free(pkey[0]); - mpi_free(pkey[1]); + while (--i >= 0) + mpi_free(pkey[i]); err1: up_read(&key->sem); |