Linux Kernel up to 6.6.152/6.12.104/6.18.45/7.1.9 amdgpu amdgpu_cs_pass1 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as very critical has been found in Linux Kernel up to 6.6.152/6.12.104/6.18.45/7.1.9. Affected by this vulnerability is the function amdgpu_cs_pass1 of the component amdgpu. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2026-80539. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.6.152/6.12.104/6.18.45/7.1.9. It has been classified as very critical. This affects the function amdgpu_cs_pass1 of the component amdgpu. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: disallow multiple FENCE chunks in one submit amdgpu_cs_pass1() dispatches on chunk_id once per chunk without rejecting repeated ids. p->uf_bo is a single-slot field, so a submission carrying two AMDGPU_CHUNK_ID_FENCE chunks runs amdgpu_cs_p1_user_fence() twice, and the second run overwrites p->uf_bo with a freshly referenced BO without dropping the reference taken by the first. amdgpu_cs_parser_fini() only unrefs the final p->uf_bo, so every FENCE chunk but the last leaks a BO reference. The leaked BO outlives handle close and process exit. Reject duplicate FENCE chunks the same way commit fec5f8e8c6bc ("drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit") did for p->bo_list. (cherry picked from commit 665b1fc2a1845206408f9a2c6da67101789edb82)

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-80539 since 08/26/2026. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/26/2026).

Upgrading to version 6.6.153, 6.12.105, 6.18.46 or 7.1.10 eliminates this vulnerability. Applying the patch 070229262ede37d17c4ea596650deb6e5eb5d106/5f46322e0b84af29e10eb951ff45bd6ea40640de/71aa45f7bfe46fbc6f51e7832573ff49b6005fea/e3ee74d6dbbe409eb99546a7b0a02b2782f9021d/931cd1d1baeae68e8eb2c23bc1f3d8934dca6241 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
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: Partially
Local: Yes
Remote: No

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 6.6.153/6.12.105/6.18.46/7.1.10
Patch: 070229262ede37d17c4ea596650deb6e5eb5d106/5f46322e0b84af29e10eb951ff45bd6ea40640de/71aa45f7bfe46fbc6f51e7832573ff49b6005fea/e3ee74d6dbbe409eb99546a7b0a02b2782f9021d/931cd1d1baeae68e8eb2c23bc1f3d8934dca6241

Timelineinfo

08/26/2026 Advisory disclosed
08/26/2026 +0 days CVE reserved
08/26/2026 +0 days VulDB entry created
08/26/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80539 (🔒)
GCVE (CVE): GCVE-0-2026-80539
GCVE (VulDB): GCVE-100-395835

Entryinfo

Created: 08/26/2026 17:30
Changes: 08/26/2026 17:30 (59)
Complete: 🔍
Cache ID: 216::103

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