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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>,
	Mikhail Dmitrichenko <mdmitrichenko@astralinux.ru>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	lvc-project@linuxtesting.org,
	Muhammad Alifa Ramdhan <ramdhan@starlabs.sg>,
	Bing-Jhong Billy Jheng <billy@starlabs.sg>
Subject: Re: [PATCH 5.10/5.15] crypto: af_alg - Set merge to zero early in af_alg_sendmsg
Date: Wed,  1 Jul 2026 20:38:27 -0400
Message-ID: <stable-reply-af-alg-merge-20260701193800@kernel.org>
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> If an error causes af_alg_sendmsg to abort, ctx->merge may contain
> a garbage value from the previous loop.  This may then trigger a
> crash on the next entry into af_alg_sendmsg when it attempts to do
> a merge that can't be done.
>
> Fix this by setting ctx->merge to zero near the start of the loop.

Queued for 5.15.y and 5.10.y, thanks.

-- 
Thanks,
Sasha