01 Record

CVE-2026-46197

drm/amdkfd: validate SVM ioctl nattr against buffer size

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

drm/amdkfd: validate SVM ioctl nattr against buffer size

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.2% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-28 09:40Z5 MO AGO

Last updated

2026-10-19 19:36Z10 DAYS AGO

Reserved

2026-05-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

71046c8c7a7a014b17edeae8afae928857f2f1d9f9586506413fe98c39de2422

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux42de677f79999791bee4e21be318c32d90ab62c6 to < daa8bc5f83814b55b71d2b5b3a090d57a5219c21, 42de677f79999791bee4e21be318c32d90ab62c6 to < fb07a0c9c8419164812e07274947f11b1d92dd61, 42de677f79999791bee4e21be318c32d90ab62c6 to < 91c6dc5a41695d02dfc6299f106ac38a6c493e52, 42de677f79999791bee4e21be318c32d90ab62c6 to < ccd060b5c7cc75ae7e211c250b97c5b6272e7efc, 42de677f79999791bee4e21be318c32d90ab62c6 to < db9530a9873a7c85d2266a922589ebcf427fa631, 42de677f79999791bee4e21be318c32d90ab62c6 to < 6abd3a4417cb73a7d0db7e25bf11fae1074bdba3, 42de677f79999791bee4e21be318c32d90ab62c6 to < 045e0ff208f0838a246c10204105126611b267a1, 5.14—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/daa8bc5f83814b55b71d2b5b3a090d57a5219c21
git.kernel.orghttps://git.kernel.org/stable/c/fb07a0c9c8419164812e07274947f11b1d92dd61
git.kernel.orghttps://git.kernel.org/stable/c/91c6dc5a41695d02dfc6299f106ac38a6c493e52
git.kernel.orghttps://git.kernel.org/stable/c/ccd060b5c7cc75ae7e211c250b97c5b6272e7efc
git.kernel.orghttps://git.kernel.org/stable/c/db9530a9873a7c85d2266a922589ebcf427fa631
git.kernel.orghttps://git.kernel.org/stable/c/6abd3a4417cb73a7d0db7e25bf11fae1074bdba3
git.kernel.orghttps://git.kernel.org/stable/c/045e0ff208f0838a246c10204105126611b267a1

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.90-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.9-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.