CVE-2026-98228: Linux kernel · mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ
Source GCVE Database
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
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 7.8 |
|---|
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| 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
- nvd.nist.gov/vuln/detail/CVE-2026-98228 (opens in a new tab)
- git.kernel.org/stable/c/3f017c2ca8c31a1e135dd87be647096866d6b196 (opens in a new tab)
- git.kernel.org/stable/c/5802a9fda4cede6af31a3e3b171480c0e446703c (opens in a new tab)
- git.kernel.org/stable/c/bbc448c541ed90d52f9ec22f17394304e3bf170e (opens in a new tab)