crypto: starfive - Correctly handle return of sg_nents_for_len

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[ Upstream commit e9eb52037a ]

The return value of sg_nents_for_len was assigned to an unsigned long
in starfive_hash_digest, causing negative error codes to be converted
to large positive integers.

Add error checking for sg_nents_for_len and return immediately on
failure to prevent potential buffer overflows.

Fixes: 7883d1b28a ("crypto: starfive - Add hash and HMAC support")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Haotian Zhang 2025-11-10 14:54:38 +08:00 • committed by Greg Kroah-Hartman

parent a6c22c91b6

commit 9b3f71cf02

1 changed files with 5 additions and 1 deletions

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drivers/crypto/starfive/jh7110-hash.c

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