From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-cve-announce@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@kernel.org>
Subject: CVE-2026-43151: Revert "media: iris: Add sanity check for stop streaming"
Date: Wed, 6 May 2026 13:27:47 +0200 [thread overview]
Message-ID: <2026050628-CVE-2026-43151-e861@gregkh> (raw)
From: Greg Kroah-Hartman <gregkh@kernel.org>
Description
===========
In the Linux kernel, the following vulnerability has been resolved:
Revert "media: iris: Add sanity check for stop streaming"
This reverts commit ad699fa78b59241c9d71a8cafb51525f3dab04d4.
Revert the check that skipped stop_streaming when the instance was in
IRIS_INST_ERROR, as it caused multiple regressions:
1. Buffers were not returned to vb2 when the instance was already in
error state, triggering warnings in the vb2 core because buffer
completion was skipped.
2. If a session failed early (e.g. unsupported configuration), the
instance transitioned to IRIS_INST_ERROR. When userspace attempted
to stop streaming for cleanup, stop_streaming was skipped due to the
added check, preventing proper teardown and leaving the firmware
in an inconsistent state.
The Linux kernel CVE team has assigned CVE-2026-43151 to this issue.
Affected and fixed versions
===========================
Issue introduced in 6.18.3 with commit f8b136296722e258ec43237a35f72c92a6d4501a and fixed in 6.18.16 with commit bd4f8fa216182f33c06d4c1e162975a0c42fb14e
Issue introduced in 6.19 with commit ad699fa78b59241c9d71a8cafb51525f3dab04d4 and fixed in 6.19.6 with commit a58b9d1c1cf81c0b29f1983c63c3e0c0caa68398
Issue introduced in 6.19 with commit ad699fa78b59241c9d71a8cafb51525f3dab04d4 and fixed in 7.0 with commit 370e19042fb8ac68109f8bdb0fdd8118baf39318
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-2026-43151
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/media/platform/qcom/iris/iris_vb2.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/bd4f8fa216182f33c06d4c1e162975a0c42fb14e
https://git.kernel.org/stable/c/a58b9d1c1cf81c0b29f1983c63c3e0c0caa68398
https://git.kernel.org/stable/c/370e19042fb8ac68109f8bdb0fdd8118baf39318
reply other threads:[~2026-05-06 11:30 UTC|newest]
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