Linux Kernel up to 6.19.5 of_get_display_timings reference count

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.19.5. It has been classified as critical. This impacts the function of_get_display_timings. This manipulation causes reference count. This vulnerability appears as CVE-2026-43264. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.19.5. Affected by this vulnerability is the function of_get_display_timings. The manipulation with an unknown input leads to a reference count vulnerability. The CWE definition for the vulnerability is CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: fbdev: of: display_timing: fix refcount leak in of_get_display_timings() of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-43264 since 05/01/2026. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 317729 (SUSE SLES12 Security Update : kernel (SUSE-SU-2026:2068-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.16 or 6.19.6 eliminates this vulnerability. Applying the patch 20881ad42e651c69d89eb38a2042838187900fd6/b5bdcc5afbff845834d04d651773cb6b47db5dd3/2b22e4fe1273c24f405ed7903349c4bbd82b6368/3ed019654234edb8625c05d05e15d40f74e64f70/d6f34bbff07476c6abb8672c89d217824871c5ed/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64/c5734f9030a8b1e13868d1641b5163d8e659306e/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (317729). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
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: Reference count
CWE: CWE-911 / CWE-664
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 317729
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2026:2068-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.252/5.15.202/6.1.165/6.6.128/6.12.75/6.18.16/6.19.6
Patch: 20881ad42e651c69d89eb38a2042838187900fd6/b5bdcc5afbff845834d04d651773cb6b47db5dd3/2b22e4fe1273c24f405ed7903349c4bbd82b6368/3ed019654234edb8625c05d05e15d40f74e64f70/d6f34bbff07476c6abb8672c89d217824871c5ed/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64/c5734f9030a8b1e13868d1641b5163d8e659306e/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7

Timelineinfo

05/01/2026 CVE reserved
05/06/2026 +5 days Advisory disclosed
05/06/2026 +0 days VulDB entry created
05/30/2026 +24 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43264 (🔒)
GCVE (CVE): GCVE-0-2026-43264
GCVE (VulDB): GCVE-100-361513

Entryinfo

Created: 05/06/2026 17:01
Updated: 05/30/2026 14:41
Changes: 05/06/2026 17:01 (58), 05/30/2026 14:41 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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