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authorHerbert Xu <herbert@gondor.apana.org.au>2023-01-13 18:27:51 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2023-01-20 18:29:31 +0800
commit32e62025e5e52fbe4812ef044759de7010b15dbc (patch)
tree9cebafbbd2bab3badda0a070684d32609f305b75
parentb5a772adf45a32c68bef28e60621f12617161556 (diff)
crypto: seqiv - Handle EBUSY correctly
As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free. Fixes: 0a270321dbf9 ("[CRYPTO] seqiv: Add Sequence Number IV Generator") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/seqiv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/seqiv.c b/crypto/seqiv.c
index 0899d527c284..b1bcfe537daf 100644
--- a/crypto/seqiv.c
+++ b/crypto/seqiv.c
@@ -23,7 +23,7 @@ static void seqiv_aead_encrypt_complete2(struct aead_request *req, int err)
struct aead_request *subreq = aead_request_ctx(req);
struct crypto_aead *geniv;
- if (err == -EINPROGRESS)
+ if (err == -EINPROGRESS || err == -EBUSY)
return;
if (err)