Linux Kernel up to 6.19.8 iio pm_runtime_put_autosuspend reference count

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.10.252/6.1.166/6.6.129/6.18.18/6.19.8 and classified as critical. This affects the function pm_runtime_put_autosuspend of the component iio. The manipulation leads to reference count. This vulnerability is listed as CVE-2026-43355. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.252/6.1.166/6.6.129/6.18.18/6.19.8 and classified as critical. This issue affects the function pm_runtime_put_autosuspend of the component iio. The manipulation with an unknown input leads to a reference count vulnerability. Using CWE to declare the problem leads to CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: iio: light: bh1780: fix PM runtime leak on error path Move pm_runtime_put_autosuspend() before the error check to ensure the PM runtime reference count is always decremented after pm_runtime_get_sync(), regardless of whether the read operation succeeds or fails.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2026-43355 since 05/01/2026. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 313403 (Linux Distros Unpatched Vulnerability : CVE-2026-43355), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.253, 6.1.167, 6.6.130, 6.18.19 or 6.19.9 eliminates this vulnerability. Applying the patch 1eb3af4f59e09323788860a9155e9766b12891e5/424bf90e87134effe4bd932608a15286493b11ab/fc77e0a5600e620a2ae51ec78933162fb217b20b/aae572ddc28578af476cce7da3faec0395ef0bf0/33661bfc85c14836bfef4425a74b0ca2df4bb5ad/dd72e6c3cdea05cad24e99710939086f7a113fb5 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 databases at Tenable (313403) and CERT Bund (WID-SEC-2026-1454). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Microsoft Azure 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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 313403
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-43355

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.253/6.1.167/6.6.130/6.18.19/6.19.9
Patch: 1eb3af4f59e09323788860a9155e9766b12891e5/424bf90e87134effe4bd932608a15286493b11ab/fc77e0a5600e620a2ae51ec78933162fb217b20b/aae572ddc28578af476cce7da3faec0395ef0bf0/33661bfc85c14836bfef4425a74b0ca2df4bb5ad/dd72e6c3cdea05cad24e99710939086f7a113fb5

Timelineinfo

05/01/2026 CVE reserved
05/08/2026 +7 days Advisory disclosed
05/08/2026 +0 days VulDB entry created
06/19/2026 +42 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43355 (🔒)
GCVE (CVE): GCVE-0-2026-43355
GCVE (VulDB): GCVE-100-362183
CERT Bund: WID-SEC-2026-1454 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/08/2026 18:18
Updated: 06/19/2026 02:53
Changes: 05/08/2026 18:18 (59), 05/09/2026 07:32 (2), 05/18/2026 07:45 (10), 06/19/2026 02:53 (7)
Complete: 🔍
Cache ID: 216::103

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