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Unrated severityNVD Advisory· Published Nov 9, 2023· Updated Mar 24, 2026

Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create()

CVE-2023-39198

Description

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

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Affected products

294

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