Riskcovery

CVE-2026-64000

net: hsr: fix potential OOB access in supervision frame handling

State
Published
Severity
9.8 Critical
Published
Jul 19, 2026
Updated
Oct 19, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

net: hsr: fix potential OOB access in supervision frame handling

Ensure the entire TLV header is linearized before access by adding sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this, a truncated frame could cause an out-of-bounds access.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before 09a37dca090c55ffb1a33f52d8667f1c2367ef48Affected
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before a4b64f3e9c7b8259f7dd251a0313420ba7c01852Affected
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before 71c986c0ba45b7dc574fae27c83e7b6671556f37Affected
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7Affected
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before 78607a6854a22a2502f68092202e75a39af4865dAffected
  • eafaa88b3eb7f28aecb222281655473431d3ef2e to before f229426072fc865654a60978bb7fda790a051ff3Affected
LinuxLinux
  • 5.16Affected
  • before 5.16Not affected
  • 6.1.176 through 6.1.*Not affected
  • 6.6.143 through 6.6.*Not affected
  • 6.12.93 through 6.12.*Not affected
  • 6.18.35 through 6.18.*Not affected
  • 7.0.12 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.