CVE-2026-72065: net: mana: Validate the packet length reported by the NIC

CVE-2026-72065: net: mana: Validate the packet length reported by the NIC

[Greg Kroah-Hartman]

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

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

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

net: mana: Validate the packet length reported by the NIC

Validate the packet length reported in the RX CQE before passing it
to skb processing. The CQE is supplied by the NIC device and should
not be blindly trusted.

The Linux kernel CVE team has assigned CVE-2026-72065 to this issue.


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

	Issue introduced in 5.13 with commit ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f and fixed in 6.6.148 with commit 2e276b14b6d378372bf0152df89286cbe7632fb0
	Issue introduced in 5.13 with commit ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f and fixed in 6.12.101 with commit 6080189291d958604dcefe513a13900835ac982f
	Issue introduced in 5.13 with commit ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f and fixed in 6.18.42 with commit 6d13eaa13341a8f80aaf86f78591e1b1d393711d
	Issue introduced in 5.13 with commit ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f and fixed in 7.1.5 with commit 282c5214ca4eb3799158c76782646e86d2945d1b
	Issue introduced in 5.13 with commit ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f and fixed in 7.2-rc3 with commit 2e2a83b4998af4384e677d3b2ac08565274279bf

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-2026-72065
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/net/ethernet/microsoft/mana/mana_en.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/2e276b14b6d378372bf0152df89286cbe7632fb0
	https://git.kernel.org/stable/c/6080189291d958604dcefe513a13900835ac982f
	https://git.kernel.org/stable/c/6d13eaa13341a8f80aaf86f78591e1b1d393711d
	https://git.kernel.org/stable/c/282c5214ca4eb3799158c76782646e86d2945d1b
	https://git.kernel.org/stable/c/2e2a83b4998af4384e677d3b2ac08565274279bf