CVE-2026-46182
MEDIUMCVSS v3.1: 5.5 · EPSS: 0.0002 (6.4 percentile)
Source data as of:
At a glance
- Severity
- MEDIUM
- CVSS
- 5.5 v3.1 · NVD
- EPSS
- 0.0002 (6.4 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Memory Leak · NVD CWE
- Attack conditions (CVSS vector)
- No user interaction · Source: NVD Vector
- Affected vendors
- linux
- Published
- 2026-05-28 · Modified: 2026-06-11
- References
- Jump to references (3)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct papr_hvpipe_hdr contains reserved padding bytes (reserved[3] and reserved2[40]), these could leak the uninitialized bytes to userspace after copy_to_user(). This patch fixes that by initializing the whole struct to 0.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.