Linux Kernel up to 7.2.5 amdgpu drm/amdgpu/gfx6 improper synchronization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability marked as very critical has been reported in Linux Kernel up to 7.2.5. Affected by this issue is some unknown functionality of the file drm/amdgpu/gfx6 of the component amdgpu. The manipulation leads to improper synchronization. This vulnerability is documented as CVE-2026-90286. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been rated as very critical. This issue affects an unknown code of the file drm/amdgpu/gfx6 of the component amdgpu. The manipulation with an unknown input leads to a improper synchronization vulnerability. Using CWE to declare the problem leads to CWE-662. The product utilizes multiple threads or processes to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: Use PFP on the compute queues too On GFX6, the compute rings use the same CP path as the graphics ring. The only difference is that they don't support draw commands. (As opposed to GFX7 and newer which have a separate command parser that is called MEC for compute queues.) This means that we have to take into consideration that the PFP also exists on compute queues on GFX6: Use PFP for register writes on both graphics and compute queues. In the pipeline sync, use the PFP to wait for the previous fence (and not the ME) to prevent the PFP from starting to execute the next submission while the ME is still in the previous submission. After a VM flush, emit PFP_SYNC_ME on compute queues as well.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2026-90286 since 09/11/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/17/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch f37211b9c01433f0bbb4709d25df7a0257cf915b/2aa869c6b23e0b1b7f39f762618852811d75deb9/fbabc39b4f0fc771b00525ffd448be6a84355048/b5d1d3e4519dc8f1b55d6b236848bed67b11a2e8/e1d3018e3621c90cec070b6915836ae129656663/8d752f1bb73fabe5a425acbf5c767c0fe68bf3c5/e399e9d7e291ccbeba6560fb8278c8d2aa744521/60f20946cd318518ddc2c0da12103c666b2b9564 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: Improper synchronization
CWE: CWE-662
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: f37211b9c01433f0bbb4709d25df7a0257cf915b/2aa869c6b23e0b1b7f39f762618852811d75deb9/fbabc39b4f0fc771b00525ffd448be6a84355048/b5d1d3e4519dc8f1b55d6b236848bed67b11a2e8/e1d3018e3621c90cec070b6915836ae129656663/8d752f1bb73fabe5a425acbf5c767c0fe68bf3c5/e399e9d7e291ccbeba6560fb8278c8d2aa744521/60f20946cd318518ddc2c0da12103c666b2b9564

Timelineinfo

09/11/2026 CVE reserved
09/17/2026 +6 days Advisory disclosed
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-90286 (🔒)
GCVE (CVE): GCVE-0-2026-90286
GCVE (VulDB): GCVE-100-406781

Entryinfo

Created: 09/17/2026 21:07
Changes: 09/17/2026 21:07 (59)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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