CVE-2022-49454

PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup()

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

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: mediatek: Fix refcount leak in mtk_pcie_subsys_powerup() The of_find_compatible_node() function returns a node pointer with refcount incremented, We should use of_node_put() on it when done Add the missing of_node_put() to release the refcount.

Affected

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

5.15 ≤ v < 5.15.465.15 ≤ v < 5.17.145.15 ≤ v < 5.18.35.15 ≤ v < 5.195.16 ≤ v < 5.17.145.18 ≤ v < 5.18.35.1587e8657ba99cac87b84c7f8ead91b44d88345504
Vendor states this is fixed in 09b2d906d78ddf5042b1f3e0091835fc6997e8a4 (fixed)
Vendor states this is fixed in 214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4 (fixed)
Vendor states this is fixed in 4cef4237d6c37257cb6ddc397723e9c0dded0efe (fixed)
Vendor states this is fixed in ad1c9d13e04509ae24fae8dd2897148657323519 (fixed)
Vendor states this is fixed in 5.15 (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)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/09b2d906d78ddf5042b1f3e0091835fc6997e8a4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/214e0d8fe4a813ae6ffd62bc2dfe7544c20914f4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4cef4237d6c37257cb6ddc397723e9c0dded0efe
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ad1c9d13e04509ae24fae8dd2897148657323519

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

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