From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@kernel.org>
Subject: CVE-2026-43430: usb: yurex: fix race in probe
Date: Fri, 8 May 2026 16:22:39 +0200 [thread overview]
Message-ID: <2026050850-CVE-2026-43430-a1d8@gregkh> (raw)
From: Greg Kroah-Hartman <gregkh@kernel.org>
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
usb: yurex: fix race in probe
The bbu member of the descriptor must be set to the value
standing for uninitialized values before the URB whose
completion handler sets bbu is submitted. Otherwise there is
a window during which probing can overwrite already retrieved
data.
The Linux kernel CVE team has assigned CVE-2026-43430 to this issue.
Affected and fixed versions
===========================
Fixed in 5.10.253 with commit a7934d7202a39c3160aa30521c382c7b744ae4a2
Fixed in 5.15.203 with commit a8b3b3d730acea1640bc89465f2832cf06a1e13a
Fixed in 6.1.167 with commit 687d26d43a5aaf44323ce7d601cf242bb87e9559
Fixed in 6.6.130 with commit 939e3d17b843b0bae70467fef4481069d73c8520
Fixed in 6.12.78 with commit 3cec135415a89723e2d38e1c8cc5098203355965
Fixed in 6.18.19 with commit a41d3d9202e951995cfac6248c565423079c71fa
Fixed in 6.19.9 with commit af83e92c329f11139d5eea2b5b7b83c26c3f67e7
Fixed in 7.0 with commit 7a875c09899ba0404844abfd8f0d54cdc481c151
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-2026-43430
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/misc/yurex.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/a7934d7202a39c3160aa30521c382c7b744ae4a2
https://git.kernel.org/stable/c/a8b3b3d730acea1640bc89465f2832cf06a1e13a
https://git.kernel.org/stable/c/687d26d43a5aaf44323ce7d601cf242bb87e9559
https://git.kernel.org/stable/c/939e3d17b843b0bae70467fef4481069d73c8520
https://git.kernel.org/stable/c/3cec135415a89723e2d38e1c8cc5098203355965
https://git.kernel.org/stable/c/a41d3d9202e951995cfac6248c565423079c71fa
https://git.kernel.org/stable/c/af83e92c329f11139d5eea2b5b7b83c26c3f67e7
https://git.kernel.org/stable/c/7a875c09899ba0404844abfd8f0d54cdc481c151
reply other threads:[~2026-05-08 14:25 UTC|newest]
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