Riskcovery

CVE-2026-43089

xfrm_user: fix info leak in build_mapping()

State
Published
Severity
Not scored
Published
May 6, 2026
Updated
Oct 15, 2026
Reserved
May 1, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before 521385cbd50ca9474396d88462fcdfa6489685d9Affected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before c2779ae9a3e5a044e5ccd564681511bbbcc5fc0fAffected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before 72a8de41c3eb4dcf22bf3b674ea38fb2f75d6f32Affected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before d3125c541a96fb3c0fc7210112684baf22b6c24dAffected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before 5a1a4b049ddde41466ccac0daeec326254b133f2Affected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before f779a6b6cdb6e12baa0663063ac59ab2a8f20c0cAffected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before 700c9622b23c33b5933e6dcea816492c064e4e10Affected
  • 3a2dfbe8acb154905fdc2fd03ec56df42e6c4cc4 to before 1beb76b2053b68c491b78370794b8ff63c8f8c02Affected
LinuxLinux
  • 2.6.29Affected
  • before 2.6.29Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.136 through 6.6.*Not affected
  • 6.12.83 through 6.12.*Not affected
  • 6.18.24 through 6.18.*Not affected
  • 6.19.14 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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