drm/msm/dpu: check for valid hw_pp in dpu_encoder_helper_phys_cleanup

published 2024-04-02 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-23929

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits: 0; none known

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

The commit 8b45a26f2ba9 ("drm/msm/dpu: reserve cdm blocks for writeback in case of YUV output") introduced a smatch warning about another conditional block in dpu_encoder_helper_phys_cleanup() which had assumed hw_pp will always be valid which may not necessarily be true.

Lets fix the other conditional block by making sure hw_pp is valid before dereferencing it.

Patchwork: https://patchwork.freedesktop.org/patch/574878/

Patch / fix

fixed in 1 distros 3 links 4

Linux Linux 6.1.78, 6.6.17, 6.7.5, 6.8

debian ubuntu suse

linux Debian 12 6.1.82-1
linux Debian 14, Debian 13 6.7.7-1

debian advisories DEBIAN-CVE-2024-26667

linux-aws-6.5 Ubuntu 22.04 LTS 6.5.0-1023.23~22.04.1
linux-gcp-6.5 Ubuntu 22.04 LTS 6.5.0-1024.26~22.04.1
linux-hwe-6.5 Ubuntu 22.04 LTS 6.5.0-44.44~22.04.1
linux-oem-6.5 Ubuntu 22.04 LTS 6.5.0-1027.28
linux-azure-6.5 Ubuntu 22.04 LTS 6.5.0-1024.25~22.04.1
linux-nvidia-6.5 Ubuntu 22.04 LTS 6.5.0-1023.24
linux-oracle-6.5 Ubuntu 22.04 LTS 6.5.0-1026.26~22.04.1
linux-starfive-6.5 Ubuntu 22.04 LTS 6.5.0-1017.18~22.04.1

ubuntu advisories UBUNTU-CVE-2024-26667

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel-azure SLE Module for Public Cloud 15 SP5, openSUSE Leap 15.5 5.14.21-150500.33.48.1
kernel-syms-azure SLE Module for Public Cloud 15 SP5, openSUSE Leap 15.5 5.14.21-150500.33.48.1
kernel-source-azure SLE Module for Public Cloud 15 SP5, openSUSE Leap 15.5 5.14.21-150500.33.48.1
dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.59.1
kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.59.1
kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.59.1
kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.59.1
kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.59.1

suse advisories SUSE-SU-2024:1490-1 SUSE-SU-2024:1480-1 SUSE-SU-2024:1466-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-26667 updated 2026-11-06 cvss 4.4

kernel: drm/msm/dpu: check for valid hw_pp in dpu_encoder_helper_phys_cleanup

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-04-02)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux Linux

Classification

Weakness

CWE-459 Incomplete Cleanup

Technology feeds

Linux kernel rss critical rss

References

Sources

CVE List CVE-2024-26667
NVD CVE-2024-26667

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary