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crypto: authenc - Fix sleep in atomic context in decrypt_tail 

The function crypto_authenc_decrypt_tail discards its flags
argument and always relies on the flags from the original request
when starting its sub-request.

This is clearly wrong as it may cause the SLEEPABLE flag to be
set when it shouldn't.

Fixes: 92d95ba917 ("crypto: authenc - Convert to new AEAD interface")
Reported-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2022-01-19 17:58:40 +11:00
parent c2a28fdb2f
commit 66eae85033
1 changed files with 1 additions and 1 deletions
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crypto/authenc.c
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@ -253,7 +253,7 @@ static int crypto_authenc_decrypt_tail(struct aead_request *req,
dst = scatterwalk_ffwd(areq_ctx->dst, req->dst, req->assoclen); dst = scatterwalk_ffwd(areq_ctx->dst, req->dst, req->assoclen);
skcipher_request_set_tfm(skreq, ctx->enc); skcipher_request_set_tfm(skreq, ctx->enc);
skcipher_request_set_callback(skreq, aead_request_flags(req), skcipher_request_set_callback(skreq, flags,
req->base.complete, req->base.data); req->base.complete, req->base.data);
skcipher_request_set_crypt(skreq, src, dst, skcipher_request_set_crypt(skreq, src, dst,
req->cryptlen - authsize, req->iv); req->cryptlen - authsize, req->iv);