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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-29 14:54:43 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-06-15 17:38:53 +1000 |
| commit | 7cf81954705b7e5b057f7dc39a7ded54422ab6e1 (patch) | |
| tree | 547e14b1687a3d8984e46884b6c01138648ec844 /crypto/algif_skcipher.c | |
| parent | 95459261c99f1621d90bc628c2a48e60b7cf9a88 (diff) | |
| download | lwn-7cf81954705b7e5b057f7dc39a7ded54422ab6e1.tar.gz lwn-7cf81954705b7e5b057f7dc39a7ded54422ab6e1.zip | |
crypto: algif_skcipher - Cap recv SG list at ctx->used
Somewhere along the line the cap on the SG list length for receive
was lost. This patch restores it and removes the subsequent test
which is now redundant.
Fixes: 2d97591ef43d ("crypto: af_alg - consolidation of...")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/algif_skcipher.c')
| -rw-r--r-- | crypto/algif_skcipher.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index e2c8ab408bed..4c3bdffe0c3a 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -74,14 +74,10 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, return PTR_ERR(areq); /* convert iovecs of output buffers into RX SGL */ - err = af_alg_get_rsgl(sk, msg, flags, areq, -1, &len); + err = af_alg_get_rsgl(sk, msg, flags, areq, ctx->used, &len); if (err) goto free; - /* Process only as much RX buffers for which we have TX data */ - if (len > ctx->used) - len = ctx->used; - /* * If more buffers are to be expected to be processed, process only * full block size buffers. |