Linux Kernel up to 7.1.2 Linkstation Poweroff linkstation_poweroff_init use after free

CVSS Meta Temp Score
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CTI Interest Score
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9.5$5k-$25k0.00

Summaryinfo

A vulnerability marked as very critical has been reported in Linux Kernel up to 7.1.2. Impacted is the function linkstation_poweroff_init of the component Linkstation Poweroff. This manipulation causes use after free. This vulnerability is handled as CVE-2026-64246. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 7.1.2 and classified as very critical. Affected by this vulnerability is the function linkstation_poweroff_init of the component Linkstation Poweroff. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init() Move of_node_put(dn) after the of_match_node() call, which still needs the node pointer. The node reference is correctly released after use.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-64246 since 07/19/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 330014 (Debian dla-4700 : linux-config-6.1 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.211, 6.1.177, 6.6.144, 6.12.95, 6.18.38, 7.1.3 or 7.2-rc1 eliminates this vulnerability. Applying the patch 93c7ee139721936b6fa717572e74d3994603ae13/cdda7d384c05485a232ae9a849f6445accb095bf/c04d606f8b35ee7d3ed243f63893a607e9d6c0bc/3928ae803dee044b01076c478c279c0bd54164cd/2205275be9be981e70ff29610b0117d8853fac70/d109e72f3fbccb540473285d17d7519584f7f76e/8eec545cde69e46e9a1d2b7d915ce4f5df85b3bd is able to eliminate this problem.

The vulnerability is also documented in the databases at Tenable (330014) and CERT Bund (WID-SEC-2026-2527). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 330014
Nessus Name: Debian dla-4700 : linux-config-6.1 - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.15.211/6.1.177/6.6.144/6.12.95/6.18.38/7.1.3/7.2-rc1
Patch: 93c7ee139721936b6fa717572e74d3994603ae13/cdda7d384c05485a232ae9a849f6445accb095bf/c04d606f8b35ee7d3ed243f63893a607e9d6c0bc/3928ae803dee044b01076c478c279c0bd54164cd/2205275be9be981e70ff29610b0117d8853fac70/d109e72f3fbccb540473285d17d7519584f7f76e/8eec545cde69e46e9a1d2b7d915ce4f5df85b3bd

Timelineinfo

07/19/2026 CVE reserved
07/24/2026 +5 days Advisory disclosed
07/24/2026 +0 days VulDB entry created
07/30/2026 +6 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-64246 (🔒)
GCVE (CVE): GCVE-0-2026-64246
GCVE (VulDB): GCVE-100-382981
CERT Bund: WID-SEC-2026-2527 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/24/2026 19:06
Updated: 07/30/2026 08:02
Changes: 07/24/2026 19:06 (59), 07/27/2026 11:49 (2), 07/30/2026 08:02 (7)
Complete: 🔍
Cache ID: 216::103

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