CVE-2019-19927
kernel: Out-of-bounds read in ttm_put_pages in gpu/drm/ttm/ttm_page_alloc.c
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 31, 2019
Updated · June 28, 2026
Description
An out-of-bounds (OOB) memory access flaw was found in ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c in the Linux kernel’s graphics module. Incrementing the page pointer for huge pages was not in sync with the reference counter, and this could lead to an out-of-bounds access or a denial of service. This flaw allows a local attacker with special user privileges (or root) to cause memory exploitation.
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
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read