CVE-2026-46010: rxrpc: Fix error handling in rxgk_extract_token()

CVE-2026-46010: rxrpc: Fix error handling in rxgk_extract_token()

[Greg Kroah-Hartman]

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

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

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

rxrpc: Fix error handling in rxgk_extract_token()

Fix a missing bit of error handling in rxgk_extract_token(): in the event
that rxgk_decrypt_skb() returns -ENOMEM, it should just return that rather
than continuing on (for anything else, it generates an abort).

The Linux kernel CVE team has assigned CVE-2026-46010 to this issue.


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

	Issue introduced in 6.17 with commit 64863f4ca4945bdb62ce2b30823f39ea9fe95415 and fixed in 6.18.27 with commit 293095ef618818852bac5488c1bc223935e2ca17
	Issue introduced in 6.17 with commit 64863f4ca4945bdb62ce2b30823f39ea9fe95415 and fixed in 7.0.4 with commit c52803e925604e2a17962ab0c99dce2d3f7238db
	Issue introduced in 6.17 with commit 64863f4ca4945bdb62ce2b30823f39ea9fe95415 and fixed in 7.1-rc1 with commit 3476c8bb960f48e49355d6f93fb7673211e0163f
	Issue introduced in 6.16.9 with commit 8ac99c57029e13ebb5fb0d634925abedef32b53a

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-2026-46010
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:
	net/rxrpc/rxgk_app.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/293095ef618818852bac5488c1bc223935e2ca17
	https://git.kernel.org/stable/c/c52803e925604e2a17962ab0c99dce2d3f7238db
	https://git.kernel.org/stable/c/3476c8bb960f48e49355d6f93fb7673211e0163f