Vulnerability details
CVE-2026-63849
Linux Linux
drm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 enc ring
CVSS 3.1
7.8High
Official description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit e16be95a2c3ee712b142cb27d2dca0b461181359)
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.14 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 346492f30ce3581bf5324c4ae417eab8537dc998 ≤ v < 081ef0e46c9cdd26c0db0ef721470393d36b6655 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 346492f30ce3581bf5324c4ae417eab8537dc998 ≤ v < 5a4bffd67e94944ed3db26a959346cfb7fabaecd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 346492f30ce3581bf5324c4ae417eab8537dc998 ≤ v < 8f4954722eab88e10c4ea0c0d3b1269c31421d3a | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-07-19
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
6.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-20Improper Input Validation