In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not… (CVE-2026-64342)
A use-after-free vulnerability in the Linux kernel's USB iowarrior driver has been resolved. The issue occurs because submitted write URBs are not stopped on close(), leading to potential use-after-free in the completion handler during device disconnect. This vulnerability has been fixed by ensuring that write URBs are unconditionally stopped on disconnect.
AI Analysis
Technical Summary
The Linux kernel USB iowarrior driver contained a use-after-free vulnerability triggered when submitted write URBs were not stopped upon close(), causing them to remain active and potentially accessed after the device disconnects. The fix involves stopping these URBs unconditionally during the disconnect process to prevent use-after-free conditions in the completion handler.
Potential Impact
The vulnerability could lead to use-after-free conditions in kernel memory, which may cause system instability or potential escalation of privileges if exploited. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users and administrators should apply the official kernel updates that include this patch to remediate the issue. Since this is a kernel-level vulnerability, updating to a fixed kernel version is the recommended mitigation.
In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not… (CVE-2026-64342)
Description
A use-after-free vulnerability in the Linux kernel's USB iowarrior driver has been resolved. The issue occurs because submitted write URBs are not stopped on close(), leading to potential use-after-free in the completion handler during device disconnect. This vulnerability has been fixed by ensuring that write URBs are unconditionally stopped on disconnect.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel USB iowarrior driver contained a use-after-free vulnerability triggered when submitted write URBs were not stopped upon close(), causing them to remain active and potentially accessed after the device disconnects. The fix involves stopping these URBs unconditionally during the disconnect process to prevent use-after-free conditions in the completion handler.
Potential Impact
The vulnerability could lead to use-after-free conditions in kernel memory, which may cause system instability or potential escalation of privileges if exploited. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix for this vulnerability has been implemented in the Linux kernel. Users and administrators should apply the official kernel updates that include this patch to remediate the issue. Since this is a kernel-level vulnerability, updating to a fixed kernel version is the recommended mitigation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9px5-jvx8-8qgx
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64342"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a65420c9c2644c7f808536f
Added to database: 07/25/2026, 23:09:00 UTC
Last enriched: 07/25/2026, 23:32:57 UTC
Last updated: 07/26/2026, 05:58:27 UTC
Views: 4
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