Linux Kernel up to 6.18.15/6.19.5 iris_kill_session denial of service

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 6.18.15/6.19.5 and classified as critical. This affects the function iris_kill_session. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2026-43217. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.15/6.19.5. It has been rated as critical. Affected by this issue is the function iris_kill_session. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: media: iris: gen2: Add sanity check for session stop In iris_kill_session, inst->state is set to IRIS_INST_ERROR and session_close is executed, which will kfree(inst_hfi_gen2->packet). If stop_streaming is called afterward, it will cause a crash. Add a NULL check for inst_hfi_gen2->packet before sendling STOP packet to firmware to fix that.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-43217 since 05/01/2026. There are known technical details, but no exploit is available.

Upgrading to version 6.18.16 or 6.19.6 eliminates this vulnerability. Applying the patch 72846441c5f6396de9face04e77fa3d28e9915b6/75992ba43072674fd4767df62a1fe2048565cc60/9aa8d63d09cfc44d879427cc5ba308012ca4ab8e 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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: Denial of service
CWE: CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.16/6.19.6
Patch: 72846441c5f6396de9face04e77fa3d28e9915b6/75992ba43072674fd4767df62a1fe2048565cc60/9aa8d63d09cfc44d879427cc5ba308012ca4ab8e

Timelineinfo

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

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43217 (🔒)
GCVE (CVE): GCVE-0-2026-43217
GCVE (VulDB): GCVE-100-361484

Entryinfo

Created: 05/06/2026 16:54
Changes: 05/06/2026 16:54 (58)
Complete: 🔍
Cache ID: 216::103

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