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VulnerabilityPublished Updated

CVE-2026-98228: Linux kernel · mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ

Source GCVE Database

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Authoritative record:CVE-2026-98228· High 7.8

Not known to be exploited · CVSS 7.8 High · fixed in bbc448c541ed90d52f9ec22f17394304e3bf170e : patch Linux kernel soon.

Data as of 6 Nov 2026, 19:19 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Linux)CVSS 3.17.8
Patch
Available – fixed in bbc448c541ed90d52f9ec22f17394304e3bf170e, 5802a9fda4cede6af31a3e3b171480c0e446703c, 3f017c2ca8c31a1e135dd87be647096866d6b196
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade Linux kernel to bbc448c541ed90d52f9ec22f17394304e3bf170e, 5802a9fda4cede6af31a3e3b171480c0e446703c or 3f017c2ca8c31a1e135dd87be647096866d6b196.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ fbe0fae601b780622fcb7034a479fa161645b9f4, < bbc448c541ed90d52f9ec22f17394304e3bf170e
Fixed in
  • bbc448c541ed90d52f9ec22f17394304e3bf170e
LinuxLinuxAffected
  • ≥ fbe0fae601b780622fcb7034a479fa161645b9f4, < 5802a9fda4cede6af31a3e3b171480c0e446703c
Fixed in
  • 5802a9fda4cede6af31a3e3b171480c0e446703c
LinuxLinuxAffected
  • ≥ fbe0fae601b780622fcb7034a479fa161645b9f4, < 3f017c2ca8c31a1e135dd87be647096866d6b196
Fixed in
  • 3f017c2ca8c31a1e135dd87be647096866d6b196
LinuxLinuxAffected
  • =6.11
Fixed in–

AI-suggested

A fix is available that selects CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ in the Linux kernel configuration to inject necessary synchronization instructions around lld/scd loops. Users should apply the official kernel patches or updates that include this fix to mitigate the vulnerability. No additional mitigations are indicated beyond applying the patch.

Description

CVE-2026-98228 is a vulnerability in the Linux kernel affecting MIPS architecture, specifically on I6500 CPU cores. The issue arises because the load-linked (lld) and store-conditional (scd) instructions do not provide ordering guarantees, which can lead to kernel paging faults and system instability. The vulnerability is related to weak memory ordering assumptions in the arch_cmpxchg() implementation. A fix involves injecting synchronization instructions around these loops to ensure proper ordering and prevent faults.

References

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