tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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crypto: ccree - fix a memory leak in cc_mac_digest()

Add cc_unmap_result() if cc_map_hash_request_final()
fails to prevent potential memory leak.

Fixes: 63893811b0fc ("crypto: ccree - add ahash support")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

authored by

Haoxiang Li and committed by
Herbert Xu 02c64052 879a4f78

+1
+1
drivers/crypto/ccree/cc_hash.c
··· 1448 1448 if (cc_map_hash_request_final(ctx->drvdata, state, req->src, 1449 1449 req->nbytes, 1, flags)) { 1450 1450 dev_err(dev, "map_ahash_request_final() failed\n"); 1451 + cc_unmap_result(dev, state, digestsize, req->result); 1451 1452 cc_unmap_req(dev, state, ctx); 1452 1453 return -ENOMEM; 1453 1454 }