ZDI-26-442: Linux Kernel CAN ISO-TP Protocol Race Condition Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8.
AI Analysis
Technical Summary
This vulnerability in the Linux Kernel's CAN ISO-TP protocol arises from a race condition caused by improper locking when closing sockets. An attacker who can execute low-privileged code locally can exploit this flaw to escalate privileges and execute arbitrary code within the kernel context. The vulnerability has a CVSS score of 7.8 and affects the Linux Kernel. Linux has released a patch to address this issue.
Potential Impact
Local attackers with the ability to run low-privileged code can exploit this race condition to escalate privileges to kernel level, potentially gaining full control over the affected system. This includes the ability to execute arbitrary code with kernel privileges, compromising confidentiality, integrity, and availability.
Mitigation Recommendations
Linux has issued an official update that corrects this vulnerability. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this issue.
ZDI-26-442: Linux Kernel CAN ISO-TP Protocol Race Condition Local Privilege Escalation Vulnerability
Description
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in the Linux Kernel's CAN ISO-TP protocol arises from a race condition caused by improper locking when closing sockets. An attacker who can execute low-privileged code locally can exploit this flaw to escalate privileges and execute arbitrary code within the kernel context. The vulnerability has a CVSS score of 7.8 and affects the Linux Kernel. Linux has released a patch to address this issue.
Potential Impact
Local attackers with the ability to run low-privileged code can exploit this race condition to escalate privileges to kernel level, potentially gaining full control over the affected system. This includes the ability to execute arbitrary code with kernel privileges, compromising confidentiality, integrity, and availability.
Mitigation Recommendations
Linux has issued an official update that corrects this vulnerability. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this issue.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-442/","fetched":true,"fetchedAt":"2026-07-16T15:50:31.629Z","wordCount":202}
Threat ID: 6a58fe6468715ace43485b49
Added to database: 07/16/2026, 15:53:08 UTC
Last enriched: 07/16/2026, 15:53:46 UTC
Last updated: 07/16/2026, 17:52:13 UTC
Views: 4
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