High 7.8Published May 28, 2026

CVE-2026-46197drm/amdkfd: validate SVM ioctl nattr against buffer size

Updated under an hour ago (Oct 27, 2026, 3:00 AM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-120
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 42de677f79999791bee4e21be318c32d90ab62c6 before daa8bc5f83814b55b71d2b5b3a090d57a5219c21; from 42de677f79999791bee4e21be318c32d90ab62c6 before fb07a0c9c8419164812e07274947f11b1d92dd61; from 42de677f79999791bee4e21be318c32d90ab62c6 before 91c6dc5a41695d02dfc6299f106ac38a6c493e52; from 42de677f79999791bee4e21be318c32d90ab62c6 before ccd060b5c7cc75ae7e211c250b97c5b6272e7efc; from 42de677f79999791bee4e21be318c32d90ab62c6 before db9530a9873a7c85d2266a922589ebcf427fa631; 42de677f79999791bee4e21be318c32d90ab62c6 builds before 6abd3a4417cb73a7d0db7e25bf11fae1074bdba3; from 42de677f79999791bee4e21be318c32d90ab62c6 before 045e0ff208f0838a246c10204105126611b267a1	CNA record
linux linux_kernel linux:linux_kernel	from 5.14 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.90; from 6.13 before 6.18.32; from 6.19 before 7.0.9; 7.1	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.