CVE-2026-63843Patch

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit f05d0a4f21fc720116d6e238f23308b199891058)

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-20

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Full discourse1 post

DFIR Lab@DFIR_Lab91d
Patch
🚨 HIGH: CVE-2026-63843 (CVSS 7.8) Linux kernel vulnerability in AMD GPU JPEG driver allows local privilege escalation. JPEG v4.0.5 rings lack user fence support, enabling unauthorized CS submissions. Patch available. #CVE #Vulnerability #PatchNow https://t.co/lpz64XpAoh
Post summary
CVE-2026-63843 is a local privilege escalation flaw in the AMD GPU JPEG driver; patching is available to address the issue.
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