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crypto: pcrypt - Fix handling of MAY_BACKLOG requests

Browse Source 
JIRA: https://redhat.atlassian.net/browse/RHEL-226716
CVE: CVE-2026-43493

commit 915b692e6cb723aac658c25eb82c58fd81235110
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date:   Thu Apr 16 17:00:50 2026 +0800

    crypto: pcrypt - Fix handling of MAY_BACKLOG requests

    MAY_BACKLOG requests can return EBUSY.  Handle them by checking
    for that value and filtering out EINPROGRESS notifications.

    Reported-by: Yiming Qian <yimingqian591@gmail.com>
    Fixes: 5a1436beec ("crypto: pcrypt - call the complete function on error")
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Ricardo Robaina <rrobaina@redhat.com>
This commit is contained in:
Ricardo Robaina
2026-08-11 08:58:27 -03:00
parent 6738d1f143
commit 72cc192a5d
1 changed files with 5 additions and 2 deletions
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crypto/pcrypt.c
+5 -2
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@@ -69,6 +69,9 @@ static void pcrypt_aead_done(void *data, int err)
struct pcrypt_request *preq = aead_request_ctx(req);
struct padata_priv *padata = pcrypt_request_padata(preq);
if (err == -EINPROGRESS)
return;
padata->info = err;
padata_do_serial(padata);
@@ -82,7 +85,7 @@ static void pcrypt_aead_enc(struct padata_priv *padata)
ret = crypto_aead_encrypt(req);
if (ret == -EINPROGRESS)
if (ret == -EINPROGRESS || ret == -EBUSY)
return;
padata->info = ret;
@@ -133,7 +136,7 @@ static void pcrypt_aead_dec(struct padata_priv *padata)
ret = crypto_aead_decrypt(req);
if (ret == -EINPROGRESS)
if (ret == -EINPROGRESS || ret == -EBUSY)
return;
padata->info = ret;