CVE-2026-43249
MediumSummary
A vulnerability has been identified in the Linux kernel that has been resolved. The issue concerns the xen_9pfs_front_free function, which can be called concurrently by the xenwatch thread, leading to a general protection fault due to double invocation.
Risk Assessment
This vulnerability may lead to system crashes due to memory protection errors, potentially affecting the stability and availability of services running on the system.
Recommendation
It is recommended to update the Linux kernel to the latest version to eliminate this vulnerability and minimize the risk of memory protection errors.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: 9p/xen: protect xen_9pfs_front_free against concurrent calls The xenwatch thread can race with other back-end change notifications and call xen_9pfs_front_free() twice, hitting the observed general protection fault due to a double