CVE-2026-63840 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 86ac011ae234c03fb872f4945913391ea1d8862e)
A vulnerability in the Linux kernel's AMDGPU JPEG driver for version 5.3.0 has been addressed. The issue arose because JPEG rings do not accommodate 64-bit user fence writes, leading to the rejection of command submissions that included user fences. The vulnerability has been resolved by configuring the JPEG v5.3.0 ring to disallow user fence writes.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/3b0ea2021351b6b813b34fac940957f1f4fad85b | kernel.org | |
| https://git.kernel.org/stable/c/46ad73aec27d020f103b4262e4da2d2c22f54799 | kernel.org |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
No affected product data is available for this CVE.
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 20, 2026 | CVE Modified | kernel.org |
| Jul 19, 2026 | New CVE Received | kernel.org |