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CVE-2026-64000

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.1.176, 6.6.143, 6.12.93, 6.18.35, 7.0.12
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in 09a37dca090c55ffb1a33f52d8667f1c2367ef48; From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in a4b64f3e9c7b8259f7dd251a0313420ba7c01852; From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in 71c986c0ba45b7dc574fae27c83e7b6671556f37; From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7; From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in 78607a6854a22a2502f68092202e75a39af4865d; From eafaa88b3eb7f28aecb222281655473431d3ef2e · fixed in f229426072fc865654a60978bb7fda790a051ff3

  • Linux Linux

    5.16

  • KernelLinux

    From 5.16.0 · fixed in 6.1.176; From 6.2.0 · fixed in 6.6.143; From 6.7.0 · fixed in 6.12.93; From 6.13.0 · fixed in 6.18.35; From 6.19.0 · fixed in 7.0.12

References 6

git.kernel.org