CVE-2026-46197

drm/amdkfd: validate SVM ioctl nattr against buffer size

State: Published
Severity: 7.8 High
Published: May 28, 2026
Updated: Oct 19, 2026
Reserved: May 13, 2026

Description

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)

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
LinuxLinux	42de677f79999791bee4e21be318c32d90ab62c6 to before daa8bc5f83814b55b71d2b5b3a090d57a5219c21Affected 42de677f79999791bee4e21be318c32d90ab62c6 to before fb07a0c9c8419164812e07274947f11b1d92dd61Affected 42de677f79999791bee4e21be318c32d90ab62c6 to before 91c6dc5a41695d02dfc6299f106ac38a6c493e52Affected 42de677f79999791bee4e21be318c32d90ab62c6 to before ccd060b5c7cc75ae7e211c250b97c5b6272e7efcAffected 42de677f79999791bee4e21be318c32d90ab62c6 to before db9530a9873a7c85d2266a922589ebcf427fa631Affected 42de677f79999791bee4e21be318c32d90ab62c6 to before 6abd3a4417cb73a7d0db7e25bf11fae1074bdba3Affected 42de677f79999791bee4e21be318c32d90ab62c6 to before 045e0ff208f0838a246c10204105126611b267a1Affected
LinuxLinux	5.14Affected before 5.14Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.140 through 6.6.Not affected 6.12.90 through 6.12.Not affected 6.18.32 through 6.18.Not affected 7.0.9 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

42de677f79999791bee4e21be318c32d90ab62c6 to before daa8bc5f83814b55b71d2b5b3a090d57a5219c21Affected
42de677f79999791bee4e21be318c32d90ab62c6 to before fb07a0c9c8419164812e07274947f11b1d92dd61Affected
42de677f79999791bee4e21be318c32d90ab62c6 to before 91c6dc5a41695d02dfc6299f106ac38a6c493e52Affected
42de677f79999791bee4e21be318c32d90ab62c6 to before ccd060b5c7cc75ae7e211c250b97c5b6272e7efcAffected
42de677f79999791bee4e21be318c32d90ab62c6 to before db9530a9873a7c85d2266a922589ebcf427fa631Affected
42de677f79999791bee4e21be318c32d90ab62c6 to before 6abd3a4417cb73a7d0db7e25bf11fae1074bdba3Affected
42de677f79999791bee4e21be318c32d90ab62c6 to before 045e0ff208f0838a246c10204105126611b267a1Affected

LinuxLinux

5.14Affected
before 5.14Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.140 through 6.6.*Not affected
6.12.90 through 6.12.*Not affected
6.18.32 through 6.18.*Not affected
7.0.9 through 7.0.*Not affected
7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.