CVE-2026-68383

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)

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/299bc6d50b1bed7d1f408391736712f01a0855e2
https://git.kernel.org/stable/c/77fd62412431e8c80ef2ad61466bc76fe425f80a

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-10 13:20

Updated : 2026-08-17 06:17

NVD link : CVE-2026-68383

Mitre link : CVE-2026-68383

CVE.ORG link : CVE-2026-68383

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-68383", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"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", "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"}]}], "published": "2026-08-10T13:20:31.483", "references": [{"url": "https://git.kernel.org/stable/c/299bc6d50b1bed7d1f408391736712f01a0855e2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/77fd62412431e8c80ef2ad61466bc76fe425f80a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/guc: Keep scheduler timeline name alive\n\nThe scheduler keeps a pointer to the timeline name, but q->name\nis freed with the exec queue while scheduler fences can still\nreference it.\n\nStore the name in struct xe_guc_exec_queue so it shares\nthe scheduler's RCU-deferred lifetime.\n\n(cherry picked from commit 41075f0eb5dcbd3b065d15f15ef7bbe9315188e8)"}], "lastModified": "2026-08-17T06:17:46.817", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}