CVE-2026-43089

A flaw was found in the Linux kernel's xfrmuser module. A one-byte padding hole in the struct xfrmusersaid was not properly initialized before being copied to userspace. This information disclosure vulnerability could allow a local attacker to obtain sensitive information from kernel memory...

CVE-2026-43089 xfrm_user: fix info leak in build_mapping()

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildmapping struct xfrmusersaid has a one-byte padding hole after the proto field, which ends up never getting set to zero before copying out to userspace. Fix that up by zeroing out the whole structur...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a 1-byte padding hole in the proto field of the struct xfrmusersaid structure in the buildmapping...