Linux Kernel up to 7.2.5 r8a66597 r8a66597_probe double free

CVSS Meta Temp Score
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CTI Interest Score
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9.5$5k-$25k0.39-

Summaryinfo

A vulnerability categorized as very critical has been discovered in Linux Kernel up to 7.2.5. This vulnerability affects the function r8a66597_probe of the component r8a66597. Executing a manipulation can lead to double free. This vulnerability is tracked as CVE-2026-93141. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5. It has been declared as very critical. This vulnerability affects the function r8a66597_probe of the component r8a66597. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: r8a66597: avoid double free of ep0_req in probe error path If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc and frees ep0_req, then falls through to clean_up2 where ep0_req is freed again when it is non-NULL. Remove the redundant free from err_add_udc and keep the cleanup in clean_up2 so the request is released exactly once. Issue found using a prototype static analysis tool and confirmed by code review.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2026-93141 since 09/17/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (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 c9e93290ffe7db22a8131a5f5fd026335090fbbe/7721cf32efa428bd9649f4a9b89fc85601df87de/f9c43246128a2dd0f2bbad71decf153910ce3606/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b/b2e68583c7c51eea2aafb8f1793e0d285c56ac82/6648c470918371766f6d368113dd2a4faebac93f/6be64cca6527f7fc99b05abf54f22db91bbc116f/41d541e3718db01668a4cd29815ee4b3b55f76d2 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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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: Double free
CWE: CWE-415 / 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 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: c9e93290ffe7db22a8131a5f5fd026335090fbbe/7721cf32efa428bd9649f4a9b89fc85601df87de/f9c43246128a2dd0f2bbad71decf153910ce3606/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b/b2e68583c7c51eea2aafb8f1793e0d285c56ac82/6648c470918371766f6d368113dd2a4faebac93f/6be64cca6527f7fc99b05abf54f22db91bbc116f/41d541e3718db01668a4cd29815ee4b3b55f76d2

Timelineinfo

09/17/2026 Advisory disclosed
09/17/2026 +0 days CVE reserved
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-2026-93141 (🔒)
GCVE (CVE): GCVE-0-2026-93141
GCVE (VulDB): GCVE-100-407212

Entryinfo

Created: 09/17/2026 23:49
Changes: 09/17/2026 23:49 (59)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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