CVE-2026-43089 — xfrm_user: fix info leak in build_mapping()
In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_mapping() struct xfrm_usersa_id has a one-byte padding hole after the pro…
Published: 2026-05-06 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_mapping() struct xfrm_usersa_id 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 structure before setting individual variables.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7