CVE-2026-98917
kernel: parisc: Increase kernel stack size to 32kb
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 30, 2026
Description
A flaw was found in the Linux kernel's PA-RISC architecture support. This vulnerability can lead to a Denial of Service (DoS) when deep call chains cause a kernel stack overflow on 64-bit systems. A local user executing complex or resource-intensive workloads can trigger this condition, causing the system to crash.
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-787 · Out-of-bounds Write