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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-05-29 14:54:43 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-25 15:33:09 +0200 |
| commit | b3ad0cdbdca3c8593bc8bb8f51bb0177597cbf6c (patch) | |
| tree | f2fbc65c1ff5e98f9aafc523cd58b167d85674f6 /crypto | |
| parent | d9d3352c20a0b9bbc224632418a075013ed1f702 (diff) | |
| download | linux-stable-b3ad0cdbdca3c8593bc8bb8f51bb0177597cbf6c.tar.gz linux-stable-b3ad0cdbdca3c8593bc8bb8f51bb0177597cbf6c.tar.bz2 linux-stable-b3ad0cdbdca3c8593bc8bb8f51bb0177597cbf6c.zip | |
crypto: algif_skcipher - Cap recv SG list at ctx->used
commit 7cf81954705b7e5b057f7dc39a7ded54422ab6e1 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -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 cfdaab2b7d76..1380a208b8ca 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -78,14 +78,10 @@ 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. |