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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2023-11-28 16:25:49 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-01-25 15:35:16 -0800 |
| commit | e136daaa10e4c6c50a5c0fc9c5f89a6f988fe619 (patch) | |
| tree | 53d63049d719d1e2f17010229c152ee68788b9ec /include/crypto | |
| parent | 1e9d707233980a6da0784387209f044aca810e83 (diff) | |
| download | linux-e136daaa10e4c6c50a5c0fc9c5f89a6f988fe619.tar.gz linux-e136daaa10e4c6c50a5c0fc9c5f89a6f988fe619.tar.bz2 linux-e136daaa10e4c6c50a5c0fc9c5f89a6f988fe619.zip | |
crypto: af_alg - Disallow multiple in-flight AIO requests
[ Upstream commit 67b164a871af1d736f131fd6fe78a610909f06f3 ]
Having multiple in-flight AIO requests results in unpredictable
output because they all share the same IV. Fix this by only allowing
one request at a time.
Fixes: 83094e5e9e49 ("crypto: af_alg - add async support to algif_aead")
Fixes: a596999b7ddf ("crypto: algif - change algif_skcipher to be asynchronous")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/if_alg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index ef8ce86b1f78..08b803a4fcde 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -136,6 +136,7 @@ struct af_alg_async_req { * recvmsg is invoked. * @init: True if metadata has been sent. * @len: Length of memory allocated for this data structure. + * @inflight: Non-zero when AIO requests are in flight. */ struct af_alg_ctx { struct list_head tsgl_list; @@ -154,6 +155,8 @@ struct af_alg_ctx { bool init; unsigned int len; + + unsigned int inflight; }; int af_alg_register_type(const struct af_alg_type *type); |