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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-07-02 13:32:21 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-07-09 18:25:22 +1000 |
| commit | 662bb52f50bca16a74fe92b487a14d7dccb85e1a (patch) | |
| tree | 6ffd6265d927924b7bd9cb7be1e9e1cdfe21d76e /crypto | |
| parent | ad6a0664c29c698bfe5c46c49f627af6f5bb172b (diff) | |
| download | lwn-662bb52f50bca16a74fe92b487a14d7dccb85e1a.tar.gz lwn-662bb52f50bca16a74fe92b487a14d7dccb85e1a.zip | |
crypto: af_alg - Fix regression on empty requests
Some user-space programs rely on crypto requests that have no
control metadata. This broke when a check was added to require
the presence of control metadata with the ctx->init flag.
This patch fixes the regression by setting ctx->init as long as
one sendmsg(2) has been made, with or without a control message.
Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: f3c802a1f300 ("crypto: algif_aead - Only wake up when...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/af_alg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 9fcb91ea10c4..5882ed46f1ad 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -851,6 +851,7 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, err = -EINVAL; goto unlock; } + ctx->init = true; if (init) { ctx->enc = enc; @@ -858,7 +859,6 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, memcpy(ctx->iv, con.iv->iv, ivsize); ctx->aead_assoclen = con.aead_assoclen; - ctx->init = true; } while (size) { |