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CVE-2026-43155

mux: mmio: fix regmap leak on probe failure

MEDIUM
5.5
CVSS Score
Published: May 6, 2026 at 11:27 AM UTC
Updated: June 17, 2026 at 10:49 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: mux: mmio: fix regmap leak on probe failure The mmio regmap that may be allocated during probe is never freed. Switch to using the device managed allocator so that the regmap is released on probe failures (e.g. probe deferral) and on driver unbind.

Affected

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

Linux Kernel· Linux
95%
6.16 ≤ v < 6.18.166.16 ≤ v < 6.19.66.16 ≤ v < 7.06.19 ≤ v < 6.19.66.1661de83fd8256e185588670d3cf0bccc3e913819c
Vendor states this is fixed in 3c4ae63073d84abee5d81ce46d86a94e9dae9c89 (fixed)
Vendor states this is fixed in 76096f156fe9dc9fbd6e4618088706e91b9b0a6c (fixed)
Vendor states this is fixed in cbde3c109d52564ae2c12e514c33c44345e84b2c (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.16 (unaffected)
Vendor states this is fixed in 6.19.6 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

References (3)

Patch
Source: cverecord
https://git.kernel.org/stable/c/76096f156fe9dc9fbd6e4618088706e91b9b0a6c
Patch
Source: cverecord
https://git.kernel.org/stable/c/cbde3c109d52564ae2c12e514c33c44345e84b2c
Patch
Source: cverecord
https://git.kernel.org/stable/c/3c4ae63073d84abee5d81ce46d86a94e9dae9c89

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

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