CVE-2026-43317

most: core: fix leak on early registration failure

MEDIUM
5.5
CVSS Score
Published: May 8, 2026 at 01:26 PM UTC
Updated: October 21, 2026 at 01:18 PM 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: most: core: fix leak on early registration failure A recent commit fixed a resource leak on early registration failures but for some reason left out the first error path which still leaks the resources associated with the interface. Fix up also the first error path so that the interface is always released on errors.

Affected

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

5.6 ≤ v < 6.12.756.13 ≤ v < 6.18.166.19 ≤ v < 6.19.65.67.07.0 rc17.0 rc27.0 rc37.0 rc47.0 rc57.0 rc67.0 rc7723de0f9171eeb49a3ae98cae82ebbbb992b3a7c
Vendor states this is fixed in 2c198c272f9c9213b0fdf6b4a879f445c574f416 (fixed)
Vendor states this is fixed in 5fd4396c2e48e90cc2597a86c18227d56ea845f0 (fixed)
Vendor states this is fixed in bbfe49ffb892bddf32c34bea95b7ff0fc30affb5 (fixed)
Vendor states this is fixed in f1ba620f9e8d7291f80c0554e4b820f5fb30e819 (fixed)
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.12.75 (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 6.6.160 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-401

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