CVE-2026-68383
drm/xe/guc: Keep scheduler timeline name alive
Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Keep scheduler timeline name alive The scheduler keeps a pointer to the timeline name, but q->name is freed with the exec queue while scheduler fences can still reference it. Store the name in struct xe_guc_exec_queue so it shares the scheduler's RCU-deferred lifetime. (cherry picked from commit 41075f0eb5dcbd3b065d15f15ef7bbe9315188e8)
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 10, 2026, 1:20 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-68383
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Store the name in struct xe_guc_exec_queue.
- Ensure name shares the exec queue's RCU-deferred lifetime.
- Apply the fix to prevent use-after-free.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68383.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/299bc6d50b1bed7d1f408391736712f01a0855e2 | |
| https://git.kernel.org/stable/c/77fd62412431e8c80ef2ad61466bc76fe425f80a |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68383 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68383
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68383 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68383 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6bd90e700b4285e6a7541e00f969cab0d696adde', 'lessThan': '77fd62412431e8c80ef2ad61466bc76fe425f80a', 'versionType': 'git'}, {'status': 'affected', 'version': '6bd90e700b4285e6a7541e00f969cab0d696adde', 'lessThan': '299bc6d50b1bed7d1f408391736712f01a0855e2', 'versionType': 'git'}, {'status': 'affected', 'version': 'b17fcce70733c211cb5dabf54f4f9491920b1d92', 'versionType': 'git'}, {'status': 'affected', 'version': 'ba37807d08bae67de6139346a85650cab5f6145a', 'versionType': 'git'}, {'status': 'affected', 'version': '683b0e397dad9f26a42dcacf6f7f545a77ce6c06', 'versionType': 'git'}, {'status': 'affected', 'version': '6.12.43', 'lessThan': '6.13', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.15.11', 'lessThan': '6.16', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.16.2', 'lessThan': '6.17', 'versionType': 'semver'}], 'programFiles': ['drivers/gpu/drm/xe/xe_guc_exec_queue_types.h', 'drivers/gpu/drm/xe/xe_guc_submit.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.17'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.17', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/gpu/drm/xe/xe_guc_exec_queue_types.h', 'drivers/gpu/drm/xe/xe_guc_submit.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Keep scheduler timeline name alive The scheduler keeps a pointer to the timeline name, but q->name is freed with the exec queue while scheduler fences can still reference it. Store the name in struct xe_guc_exec_queue so it shares the scheduler's RCU-deferred lifetime. (cherry picked from commit 41075f0eb5dcbd3b065d15f15ef7bbe9315188e8) Added Reference https://git.kernel.org/stable/c/299bc6d50b1bed7d1f408391736712f01a0855e2 Added Reference https://git.kernel.org/stable/c/77fd62412431e8c80ef2ad61466bc76fe425f80a