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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 14:34:23 -0800 |
| commit | 4c10928e31c72fcf1f212c9ac57ae2550eccbd15 (patch) | |
| tree | 87e2c87515351606e1d8055766c52da28f6153fe /include/crypto | |
| parent | ca3484d5cadc39a075d3509b3f8988c9d7223b8e (diff) | |
| download | linux-4c10928e31c72fcf1f212c9ac57ae2550eccbd15.tar.gz linux-4c10928e31c72fcf1f212c9ac57ae2550eccbd15.tar.bz2 linux-4c10928e31c72fcf1f212c9ac57ae2550eccbd15.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 c1a8d4a41bb1..f4ff7ae0128a 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -137,6 +137,7 @@ 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; @@ -155,6 +156,8 @@ struct af_alg_ctx { bool init; unsigned int len; + + unsigned int inflight; }; int af_alg_register_type(const struct af_alg_type *type); |