linux-cve-announce - CVE-2025-39729: crypto: ccp - Fix dereferencing uninitialized error pointer

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Message-ID: <2025090730-CVE-2025-39729-14c4@gregkh>
Date: Sun,  7 Sep 2025 17:16:30 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-39729: crypto: ccp - Fix dereferencing uninitialized error pointer

From: Greg Kroah-Hartman <gregkh@...nel.org>

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

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

crypto: ccp - Fix dereferencing uninitialized error pointer

Fix below smatch warnings:
drivers/crypto/ccp/sev-dev.c:1312 __sev_platform_init_locked()
error: we previously assumed 'error' could be null

The Linux kernel CVE team has assigned CVE-2025-39729 to this issue.


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

	Issue introduced in 6.16 with commit 9770b428b1a28360663f1f5e524ee458b4cf454b and fixed in 6.16.1 with commit 841634e1fdc2bdf35ab851fc279fd3bedcdf5e93
	Issue introduced in 6.16 with commit 9770b428b1a28360663f1f5e524ee458b4cf454b and fixed in 6.17-rc1 with commit 0fa766726c091ff0ec7d26874f6e4724d23ecb0e

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-2025-39729
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/ccp/sev-dev.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/841634e1fdc2bdf35ab851fc279fd3bedcdf5e93
	https://git.kernel.org/stable/c/0fa766726c091ff0ec7d26874f6e4724d23ecb0e