CVE-2026-92484

cxl/region: Fix use-after-free in find_pos_and_ways() error path

Published Sep 17, 2026 CVSS n/a EPSS < 1% KEV · Not listed

Description

In the Linux kernel, the following vulnerability has been resolved:

cxl/region: Fix use-after-free in find_pos_and_ways() error path

The error path releases its reference to a switch decoder before
logging an error that includes the decoder name. If the released
reference is the last one, the decoder can be freed before the error
message accesses its name.

Drop the reference after the error is reported.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`9d90ab45d3d393532b7fa62d6a6b7ebbde9cf5fc`	affected	< 68edf359b0b45cad2654510c1ca257079b241aa5
`b3dc5c735a754142831f705068fcfa77551724ff`	affected	< b38ca9ce8c7d9b8151bb9e4770404c5e39600a48
`d90acdf49e18029cfe4194475c45ef143657737a`	affected	< f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e
`d90acdf49e18029cfe4194475c45ef143657737a`	affected	< 8f7683ce37a53eeabd721941517341d2eef2cf3c
`d90acdf49e18029cfe4194475c45ef143657737a`	affected	< 15da704b732332cc1e8f121f624e5e6c05124c5d
`8ad454d3050a40fd616d481e48d1aebb27d9951e`	affected	—
`6.6.96`	affected	< 6.6.157
`6.12.36`	affected	< 6.12.110
`6.15.5`	affected	< 6.16

Linux

affected

Version	Status	Constraints
`6.16`	affected	—
`0`	unaffected	< 6.16
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.52`	unaffected	≤ 6.18.*
`7.2.6`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[9d90ab45d3d393532b7fa62d6a6b7ebbde9cf5fc,68edf359b0b45cad2654510c1ca257079b241aa5)`	affected	code_commit	—
`[b3dc5c735a754142831f705068fcfa77551724ff,b38ca9ce8c7d9b8151bb9e4770404c5e39600a48)`	affected	code_commit	—
`[d90acdf49e18029cfe4194475c45ef143657737a,f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e)`	affected	code_commit	—
`[d90acdf49e18029cfe4194475c45ef143657737a,8f7683ce37a53eeabd721941517341d2eef2cf3c)`	affected	code_commit	—
`[d90acdf49e18029cfe4194475c45ef143657737a,15da704b732332cc1e8f121f624e5e6c05124c5d)`	affected	code_commit	—
`8ad454d3050a40fd616d481e48d1aebb27d9951e`	affected	code_commit	—
`[6.6.96,6.6.157)`	affected	semver	—
`[6.12.36,6.12.110)`	affected	semver	—
`[6.15.5,6.16)`	affected	semver	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`6.16`	affected	semver	—
`[0,6.16)`	unaffected	semver	—
`[6.6.157,6.7.0]`	unaffected	semver	—
`[6.12.110,6.13.0]`	unaffected	semver	—
`[6.18.52,6.19.0]`	unaffected	semver	—
`[7.2.6,7.3.0]`	unaffected	semver	—
`[7.3-rc1,*]`	unaffected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.200% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/15da704b732332cc1e8f121f624e5e6c05124c5d
https://git.kernel.org/stable/c/68edf359b0b45cad2654510c1ca257079b241aa5
https://git.kernel.org/stable/c/8f7683ce37a53eeabd721941517341d2eef2cf3c
https://git.kernel.org/stable/c/b38ca9ce8c7d9b8151bb9e4770404c5e39600a48
https://git.kernel.org/stable/c/f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e

History

Sep 19, 2026 10:15 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-416

Sep 17, 2026 4:30 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix use-after-free in find_pos_and_ways() error path The error path releases its reference to a switch decoder before logging an error that includes the decoder name. If the released reference is the last one, the decoder can be freed before the error message accesses its name. Drop the reference after the error is reported.
Title		cxl/region: Fix use-after-free in find_pos_and_ways() error path
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/15da704b732332cc1e8f121f624e5e6c05124c5d https://git.kernel.org/stable/c/68edf359b0b45cad2654510c1ca257079b241aa5 https://git.kernel.org/stable/c/8f7683ce37a53eeabd721941517341d2eef2cf3c https://git.kernel.org/stable/c/b38ca9ce8c7d9b8151bb9e4770404c5e39600a48 https://git.kernel.org/stable/c/f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e