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Umesh Nerlige Ramappa

Researcher fromIntel
#38980of 60,403
7.7Total CVSS
Vulnerabilities · 1
PT-2025-3594
2024-12-17
7.7
CVE-2024-57844
Linux
Linux Kernel
A vulnerability has been resolved in the Linux kernel. The issue occurs when userspace holds an fd open, unbinds the device, and then closes it, causing the driver to attempt to access the hardware. This is fixed by using `drm dev enter()`/`drm dev exit()` to protect against the fault. The vulnerability results in a page fault, specifically a supervisor read access in kernel mode with an error code of 0x0000, indicating a not-present page. The functions involved include `xe lrc update timestamp()`, `xe exec queue update run ticks()`, `xe exec queue fini()`, ` guc exec queue fini async()`, `guc exec queue fini async()`, `guc exec queue fini()`, `xe exec queue destroy()`, `xe file close()`, `drm file free()`, `drm close helper.isra.0()`, and `drm release noglobal()`.