mfd: macsmc: Initialize mutex

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-43160
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:33 UTC
Updated2026-05-13 21:20:17 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: mfd: macsmc: Initialize mutex Initialize struct apple_smc's mutex in apple_smc_probe(). Using the mutex uninitialized surprisingly resulted only in occasional NULL pointer dereferences in apple_smc_read() calls from the probe() functions of sub devices.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-908

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e038d985c9823a12cd64fa077d0c5aca2c644b67 a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb git Not specified
CNA Linux Linux affected e038d985c9823a12cd64fa077d0c5aca2c644b67 2d5932588f029f7787f52c29174fead9bbc6b2cf git Not specified
CNA Linux Linux affected e038d985c9823a12cd64fa077d0c5aca2c644b67 414f65d6736342c77d4ec5e7373039f4a09250dd git Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2d5932588f029f7787f52c29174fead9bbc6b2cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/414f65d6736342c77d4ec5e7373039f4a09250dd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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