linux-cve-announce - CVE-2024-53083: usb: typec: qcom-pmic: init value of hdr_len/txbuf

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Message-ID: <2024111905-CVE-2024-53083-6ed0@gregkh>
Date: Tue, 19 Nov 2024 18:45:03 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: CVE-2024-53083: usb: typec: qcom-pmic: init value of hdr_len/txbuf_len earlier

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

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

usb: typec: qcom-pmic: init value of hdr_len/txbuf_len earlier

If the read of USB_PDPHY_RX_ACKNOWLEDGE_REG failed, then hdr_len and
txbuf_len are uninitialized. This commit stops to print uninitialized
value and misleading/false data.

The Linux kernel CVE team has assigned CVE-2024-53083 to this issue.


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

	Issue introduced in 6.5 with commit a4422ff22142 and fixed in 6.6.61 with commit 35925e2b7b40
	Issue introduced in 6.5 with commit a4422ff22142 and fixed in 6.11.8 with commit 74d8cee747b3
	Issue introduced in 6.5 with commit a4422ff22142 and fixed in 6.12 with commit 029778a4fd2c

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-2024-53083
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/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.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/35925e2b7b404cad3db857434d3312b892b55432
	https://git.kernel.org/stable/c/74d8cee747b37cd9f5ca631f678e66e7f40f2b5f
	https://git.kernel.org/stable/c/029778a4fd2c90c2e76a902b797c2348a722f1b8