CVE-2026-98228

mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ

Products / packages Linux

Published 06/10/2026, 08:45:03 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:25:33 UTC

Linux · CVSS:3.1 · 7.8

Assessment vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity

high7.8

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

A vulnerability in the Linux kernel affects versions 6.11 and possibly others, where the MIPS I6500 CPU core's lack of ordering guarantees for lld and scd instructions can cause issues. The impact is unclear.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Linux · Linux

Linux

4 ranges

Linux version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

fbe0fae601b780622fcb7034a479fa161645b9f4 → before 8a9a8dfab8f6fb3b85859fb021e4275fadd59ad1

git versions

fbe0fae601b780622fcb7034a479fa161645b9f4 → before 5802a9fda4cede6af31a3e3b171480c0e446703c

git versions

fbe0fae601b780622fcb7034a479fa161645b9f4 → before 3f017c2ca8c31a1e135dd87be647096866d6b196

git versions

fbe0fae601b780622fcb7034a479fa161645b9f4 → before bbc448c541ed90d52f9ec22f17394304e3bf170e

git versions

Other versions: unaffected

Linux · Linux

Linux

6 ranges

Linux version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

6.11

unaffected

0 → before 6.11

semver versions

6.12.117 → through 6.12.*

semver versions

6.18.61 → through 6.18.*

semver versions

7.2.8 → through 7.2.*

semver versions

7.3 → through *

original_commit_for_fix versions

Other versions: affected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

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

mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ

On I6500 CPU cores, lld and scd give no ordering guarantees (same as all other instructions). To respect the assumption that arch_cmpxchg() is fully ordered, we must inject sync instructions above and below our lld/scd loops using the already in place WEAK_REORDERING_BEYOND_LLSC infrastructure.

Otherwise, bad things can happen:

[ 34.054496] CPU 3 Unable to handle kernel paging request at virtual address 0000000000000000, epc == a80000080838e01c, ra == a80000080838dfc4 [ 34.054559] Oops[#1]: [ 34.069561] CPU: 3 UID: 0 PID: 170 Comm: pipe_race Not tainted 7.2.0-rc6-01553-gb73c35220968-dirty #103 VOLUNTARY [ 34.079932] Hardware name: Mobile EyeQ5 MP5 Evaluation board [ 34.085592] $ 0 : 0000000000000000 0000000000000001 0000000000000000 0000000000000000 [ 34.093616] $ 4 : a800000808ee2618 000000000b7a879d 0000000000001000 0000000000000000 [ 34.101638] $ 8 : 0000000000e3f2c9 0000000000000000 a800000808a2a9f8 0000000000000000 [ 34.109660] $12 : a8000008139ffcd8 ffffffff84080018 a80000080837fae0 7878787878787878 [ 34.117682] $16 : a800000807e82940 0000000000001000 0000000000000000 0000000000000000 [ 34.125704] $20 : a800000802920e00 a8000008139ffdf8 a800000802649400 0000000000e3f2c9 [ 34.133726] $24 : 0000000000000006 00000001200406e0 [ 34.141783] $28 : a8000008139fc000 a8000008139ffd10 0000000000e3f2c8 a80000080838dfc4 [ 34.149837] epc : a80000080838e01c anon_pipe_read+0xd4/0x428 [ 34.155697] ra : a80000080838dfc4 anon_pipe_read+0x7c/0x428 [ 34.161549] Status: 140000e3 KX SX UX KERNEL EXL IE [ 34.166551] Cause : 40800408 (ExcCode 02) [ 34.170574] BadVA : 0000000000000000 [ 34.174161] PrId : 0001b028 (MIPS I6500) [ 34.178183] Process pipe_race (pid: 170, threadinfo=000000005ca35720, task=00000000e1013890, tls=000000014ebbb780) [ 34.188568] Stack : a800000802649400 0000000000000000 0000000000000000 a8000008139ffdd0 [ 34.196623] 0000000000000fba a800000808ee0000 0000000000000001 a8000008130c3e80 [ 34.204676] a8000008080d1280 a8000008139ffd58 a8000008139ffd58 1dbd2b22ea1dd500 [ 34.212729] a800000802649400 a800000808ee0000 ffffffffffffffea 0000000000000001 [ 34.220783] 0000000000001000 0000000000000000 00000001200ae518 ffffffffffffffff [ 34.228836] 000000fffbe0e530 a80000080837edf4 000000fffbe0e530 0000000000000000 [ 34.236890] 0000000000000000 0000000000000000 000000014ebb55a0 0000000000001000 [ 34.244943] 0000000000000001 a800000802649400 0000000000000000 0000000000000000 [ 34.252996] 0000000000000000 0000400400000000 0000000000000000 1dbd2b22ea1dd500 [ 34.261049] 00000000140000e3 a800000802649400 a800000802649400 a800000808ee0000 [ 34.269103] ... [ 34.271568] Call Trace: [ 34.274026] [<a80000080838e01c>] anon_pipe_read+0xd4/0x428 [ 34.279533] [<a80000080837edf4>] vfs_read+0x25c/0x318 [ 34.284607] [<a80000080837faac>] ksys_read+0x104/0x138 [ 34.289763] [<a80000080802b9cc>] syscall_common+0x44/0x68 [ 34.295187] [ 34.296689] Code: f84000cf 02209825 de020010 <dc420000> d8400004 02002825 0040f809 02802025 f84000c3 [ 34.306504] [ 34.308099] ---[ end trace 0000000000000000 ]---

My initial reproducer was the xdp-tools test suite. A standalone reproducer would be an lld/scd loop that, when the read is reordered by the CPU, triggers a fault. We can achieve this from userspace by stressing an anonymous pipe, which uses a mutex. Program used:

// SPDX-License-Identifier: GPL-2.0
// pipe_race.c - reproducer for MIPS LL/SC reordering vs fs/pipe.c
//
// Two userspace processes on an anonymous pipe:
//   parent  = writer: tight write() loop
//   child   = reader: tight read() loop

#define _GNU_SOURCE
#include <assert.h>
#include <errno.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include

---truncated---

References

4 sources

git.kernel.org/stable/c/8a9a8dfab8f6fb3b85859fb021e4275fadd59ad1

Source referenceLinux

git.kernel.org/stable/c/5802a9fda4cede6af31a3e3b171480c0e446703c

Source referenceLinux

git.kernel.org/stable/c/3f017c2ca8c31a1e135dd87be647096866d6b196

Source referenceLinux

git.kernel.org/stable/c/bbc448c541ed90d52f9ec22f17394304e3bf170e

Source referenceLinux

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance · not supplied

Weakness classification · not supplied

Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-98228

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

Linux · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 6.11

After:

Through (inclusive):

Before: 6.12.117

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 6.11

After:

Through (inclusive):

Before: 6.18.61

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 6.11

After:

Through (inclusive):

Before: 7.2.8

Vulnerable product

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

From (inclusive): 6.11

After:

Through (inclusive):

Before: 7.3

Applicability preview

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Contributing organizations · 1

Linux

Assigning organization

2026-11-10

Timeline

All times UTC

6 Oct 2026, 08:45
Advisory published
Publication date supplied by the source.
10 Nov 2026, 18:15
Source updated
Latest modification date supplied by the source.
10 Nov 2026, 18:25
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

CVE · CVE-2026-982282026-11-10

Observed 2026-11-10T18:25:00.350Z · upstream updated 2026-11-10T18:15:12.508Z

Product or version evidence changed

before

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after

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References changed

before

[
  "https://git.kernel.org/stable/c/5802a9fda4cede6af31a3e3b171480c0e446703c",
  "https://git.kernel.org/stable/c/3f017c2ca8c31a1e135dd87be647096866d6b196",
  "https://git.kernel.org/stable/c/bbc448c541ed90d52f9ec22f17394304e3bf170e"
]

after

[
  "https://git.kernel.org/stable/c/8a9a8dfab8f6fb3b85859fb021e4275fadd59ad1",
  "https://git.kernel.org/stable/c/5802a9fda4cede6af31a3e3b171480c0e446703c",
  "https://git.kernel.org/stable/c/3f017c2ca8c31a1e135dd87be647096866d6b196",
  "https://git.kernel.org/stable/c/bbc448c541ed90d52f9ec22f17394304e3bf170e"
]

Environment requirements changed

before

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after

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    ]
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Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: 0.12% estimated probability in the next 30 days. 2026-11-06 · FIRST EPSS.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-98228

Enrichment coverage

NVDAvailable

Checked 07/11/2026, 02:40:38 UTC

GHSAAvailable

Checked 07/11/2026, 02:40:38 UTC

EUVDAvailable

Checked 07/11/2026, 02:40:38 UTC

EPSSAvailable

Checked 07/11/2026, 02:40:37 UTC

Additional source evidence

FIRST EPSS · CVE-2026-98228

EPSS 0.12% probability of exploitation in the next 30 days. Percentile: 1.86% · 2026-11-06

Checked 07/11/2026, 02:40:37 UTC

NVD · CVE-2026-98228

CVSS 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Checked 07/11/2026, 02:40:38 UTC

GitHub Advisory Database · GHSA-h7gx-m7h9-c46w

CVSS 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Checked 07/11/2026, 02:40:38 UTC

ENISA EUVD · EUVD-2026-93156

CVSS 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Checked 07/11/2026, 02:40:38 UTC

Sponsored by MoxsoBuild security habits with adaptive training and phishing simulations.View as JSON

Investigate in your agent.

mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ

Severity and exploitation

What this means

Attack conditions

Affected versions

Linux

affected

unaffected

unknown

Linux

affected

unaffected

unknown

What to do

Public exploit evidence

Original source description

References

Inside the record

Evidence available

Original records

Environment requirements

Timeline

Advisory published

Source updated

Last imported by cve.new

What changed