Linux Kernel up to 7.2.5 mt7915 TWT Flow mt7915_mac_twt_sched_list_add use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k0.00-

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.1.187/6.6.156/6.12.109/6.18.51/7.2.5 and classified as very critical. This issue affects the function mt7915_mac_twt_sched_list_add of the component mt7915 TWT Flow. This manipulation causes use after free. This vulnerability is tracked as CVE-2026-90357. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as very critical was found in Linux Kernel up to 6.1.187/6.6.156/6.12.109/6.18.51/7.2.5. Affected by this vulnerability is the function mt7915_mac_twt_sched_list_add of the component mt7915 TWT Flow. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement The flow is added to dev->twt_list before sending the agreement to the firmware, but the error path leaves it linked while flowid_mask is never set. The flow slot can then be reused and memset while still on the list, corrupting twt_list, and station removal leaves a dangling entry behind that mt7915_mac_twt_sched_list_add() later walks.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-90357 since 09/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/17/2026).

Upgrading to version 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 c09d1b15ed2dc49060303b16a296b7b8b7794cbe/1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7/cabe239e95b4eebf5b6c3654087b66ff9425bc7b/6bce0f1280c94af8314f895f404629da09f0788c/beaa42b875965dbc3e80e46970e0bfa60a94c2db/16a04441eab0dcd4d7126a6f66b370adbf28f96d is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
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: Use after free
CWE: CWE-416 / CWE-119
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 6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: c09d1b15ed2dc49060303b16a296b7b8b7794cbe/1bd5c4ed2b9045faf83315c54cd37a9b7c71b5c7/cabe239e95b4eebf5b6c3654087b66ff9425bc7b/6bce0f1280c94af8314f895f404629da09f0788c/beaa42b875965dbc3e80e46970e0bfa60a94c2db/16a04441eab0dcd4d7126a6f66b370adbf28f96d

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-2026-90357 (🔒)
GCVE (CVE): GCVE-0-2026-90357
GCVE (VulDB): GCVE-100-406927

Entryinfo

Created: 09/17/2026 22:04
Changes: 09/17/2026 22:04 (59)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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