CVE-2026-46182
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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Analyzed - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-05-28
- Last modified
- 2026-06-14
- Weaknesses
- CWE-401
Affected products
References
- https://git.kernel.org/stable/c/0479b6e9f999cc1cbad7d9f09f574fc387e605d5
- https://git.kernel.org/stable/c/cefeed44296261173a806bef988b26bc565da4be
- https://git.kernel.org/stable/c/f88f8e4485b437e0a2f96a7ff1f88aa22d925659
