linux-cve-announce - CVE-2022-49563: crypto: qat

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Message-ID: <2025022605-CVE-2022-49563-9a67@gregkh>
Date: Wed, 26 Feb 2025 03:22:06 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2022-49563: crypto: qat - add param check for RSA

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

crypto: qat - add param check for RSA

Reject requests with a source buffer that is bigger than the size of the
key. This is to prevent a possible integer underflow that might happen
when copying the source scatterlist into a linear buffer.

The Linux kernel CVE team has assigned CVE-2022-49563 to this issue.


Affected and fixed versions
===========================

	Fixed in 5.15.58 with commit 4d6d2adce08788b7667a6e58002682ea1bbf6a79
	Fixed in 5.18.15 with commit f993321e50ba7a8ba4f5b19939e1772a921a1c42
	Fixed in 5.19 with commit 9714061423b8b24b8afb31b8eb4df977c63f19c4

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2022-49563
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/crypto/qat/qat_common/qat_asym_algs.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/4d6d2adce08788b7667a6e58002682ea1bbf6a79
	https://git.kernel.org/stable/c/f993321e50ba7a8ba4f5b19939e1772a921a1c42
	https://git.kernel.org/stable/c/9714061423b8b24b8afb31b8eb4df977c63f19c4