CVE-2026-43160 Details
Description
In 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.
A vulnerability in the Linux kernel's Apple System Management Controller (SMC) driver has been addressed. The issue arose because a mutex was used uninitialized, leading to occasional NULL pointer dereferences in the 'apple_smc_read()' function. This problem occurred during the probing of sub-devices. The vulnerability affected the Linux kernel stable tree.
The vulnerability has been fixed by initializing the mutex in the 'apple_smc_probe()' function. Users should upgrade to the latest version of the Linux kernel where this fix is applied.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/2d5932588f029f7787f52c29174fead9bbc6b2cf | kernel.org | Patch |
| https://git.kernel.org/stable/c/414f65d6736342c77d4ec5e7373039f4a09250dd | kernel.org | Patch |
| https://git.kernel.org/stable/c/a1e9e299c0d9ea42ab1067b39fb72e976d3f1bdb | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.17, < 6.18.16 >= 6.19, < 6.19.6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |