SECUFOCUSNOW
Home›CVE index›CVE-2026-46246
Review reviewHigh

CVE-2026-46246

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `extcon` handle, means that the `extcon` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `extcon` handle has been freed, *but* just _before_ the corresponding...

CVSS
7.8
EPSS
0.13%
2.63% percentile
CISA KEV
Not listed
Published
2026.06.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `extcon` handle, means that the `extcon` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `extcon` handle has been freed, *but* just _before_ the corresponding...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= f8d7a3d21160a0cab4d15b81231f2a76b0fcee13 < 9fab0120907e6965168e55b1e17cb9dfaf262b86, >= f8d7a3d21160a0cab4d15b81231f2a76b0fcee13 < 47abfc207ab02cf1297257e282e8048da63f0d08, >= f8d7a3d21160a0cab4d15b81231f2a76b0fcee13 < 48e0f68b50c344bb2d78d65dd98f93e41276ee00, >= f8d7a3d21160a0cab4d15b81231f2a76b0fcee13 < 23067259919663580c6f81801847cfc7bd54fd1f, >= 6.7, >= 6.7 < 6.12.75, >= 6.13 < 6.18.14, >= 6.19 < 6.19.4
Fixed versions
6.12.75, 6.18.14, 6.19.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416