CVE-2022-49462

drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:13 AM UTC
Updated: June 17, 2026 at 05:18 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. a6xx_gmu_init() passes the node to of_find_device_by_node() and of_dma_configure(), of_find_device_by_node() will takes its reference, of_dma_configure() doesn't need the node after usage. Add missing of_node_put() to avoid refcount leak.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.19 ≤ v < 5.10.1214.19 ≤ v < 5.15.464.19 ≤ v < 5.17.144.19 ≤ v < 5.18.34.19 ≤ v < 5.194.19 ≤ v < 5.4.1985.11 ≤ v < 5.15.465.16 ≤ v < 5.17.145.18 ≤ v < 5.18.35.5 ≤ v < 5.10.1214.194b565ca5a2cbbbb6345e8789da89c193b6b00e5a
Vendor states this is fixed in 06907a374f1b74f8f2fb30720dc6df81331e4fb5 (fixed)
Vendor states this is fixed in 48e82ce8cdb19c20a5020fa446b286d6a147450c (fixed)
Vendor states this is fixed in 65ddbc0d26824e2a5d6154d01d8cf39344900213 (fixed)
Vendor states this is fixed in 6832e36f156ea35a6ed74bca72727806116effdd (fixed)
Vendor states this is fixed in c56de483093d7ad0782327f95dda7da97bc4c315 (fixed)
Vendor states this is fixed in edff4c1af831d0c02e654eed9da7d74174de49d5 (fixed)
Vendor states this is fixed in 4.19 (unaffected)
Vendor states this is fixed in 5.10.121 (unaffected)
Vendor states this is fixed in 5.15.46 (unaffected)
Vendor states this is fixed in 5.17.14 (unaffected)
Vendor states this is fixed in 5.18.3 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 5.4.198 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/06907a374f1b74f8f2fb30720dc6df81331e4fb5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/48e82ce8cdb19c20a5020fa446b286d6a147450c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/65ddbc0d26824e2a5d6154d01d8cf39344900213
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6832e36f156ea35a6ed74bca72727806116effdd
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c56de483093d7ad0782327f95dda7da97bc4c315
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/edff4c1af831d0c02e654eed9da7d74174de49d5

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card