CVE-2025-38156

wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init()

MEDIUM
5.5
CVSS Score
Published: July 3, 2025 at 08:35 AM UTC
Updated: June 17, 2026 at 09:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix null-ptr-deref in mt7996_mmio_wed_init() devm_ioremap() returns NULL on error. Currently, mt7996_mmio_wed_init() does not check for this case, which results in a NULL pointer dereference. Prevent null pointer dereference in mt7996_mmio_wed_init()

Affected

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

6.13 ≤ v < 6.15.36.8 ≤ v < 6.12.346.8 ≤ v < 6.15.36.8 ≤ v < 6.166.883eafc9251d6d30574b629ac637c56d168fcbdd9
Vendor states this is fixed in 1072fc0ca1f8d0d5397d24853386876f937b8e63 (fixed)
Vendor states this is fixed in 8f30e2b059757d8711a823e4c9c023db62a1d171 (fixed)
Vendor states this is fixed in af861c6dea2ef06845a5c7672999a06c06099735 (fixed)
Vendor states this is fixed in 6.12.34 (unaffected)
Vendor states this is fixed in 6.15.3 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1072fc0ca1f8d0d5397d24853386876f937b8e63
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8f30e2b059757d8711a823e4c9c023db62a1d171
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/af861c6dea2ef06845a5c7672999a06c06099735

CVSS

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

Quick Info

StatusANALYZED
CWE
CWE-476

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