A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence() function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially enabling memory corruption. This could result in a denial of service or further compromise of the system.
References
Configurations
No configuration.
History
No history.
Information
Published : 2026-04-23 16:16
Updated : 2026-07-15 02:20
NVD link : CVE-2026-34001
Mitre link : CVE-2026-34001
CVE.ORG link : CVE-2026-34001
JSON object : View
Products Affected
No product.
CWE
CWE-825
Expired Pointer Dereference
