CVE-2026-90409
kernel: drm/panthor: Add vm_bind region with kbo range overlap check
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's drm/panthor driver. This vulnerability arises from a missing check that allows user-mode virtual memory (VM) bind mappings to overlap with memory regions reserved for kernel Buffer Objects (BOs). A local attacker could exploit this to cause memory corruption, potentially leading to information disclosure or denial of service. The fix introduces a check to prevent such overlaps.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-1285 · Improper Validation of Specified Index, Position, or Offset in Input