CVE-2024-35996

Medium

In the Linux kernel, the following vulnerability has been resolved: cpu: Re-enable CPU mitigations by default for !X86 architectures Rename x86's to CPU_MITIGATIONS, define it in generic code, and force it on for all architectures exception x86. A recent commit to turn mitigations off by default if SPECULATION_MITIGATIONS=n kinda sorta missed that "cpu_mitigations" is completely generic, whereas SPECULATION_MITIGATIONS is x86-specific. Rename x86's SPECULATIVE_MITIGATIONS instead of keeping both and have it select CPU_MITIGATIONS, as having two configs for the same thing is unnecessary and confusing. This will also allow x86 to use the knob to manage mitigations that aren't strictly related to speculative execution. Use another Kconfig to communicate to common code that CPU_MITIGATIONS is already defined instead of having x86's menu depend on the common CPU_MITIGATIONS. This allows keeping a single point of contact for all of x86's mitigations, and it's not clear that other architectures *want* to allow disabling mitigations at compile-time.

Package Linux Kernel
Published 2024-05-20
Last modified 2026-05-12
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.15.156, 6.1.87, 6.6.28, 6.8.7 and later are affected. Fixed in 5.15.158, 6.1.90, 6.6.30, 6.8.9 and their respective stable series.

Affected from
≥ 5.15.156 ≥ 6.1.87 ≥ 6.6.28 ≥ 6.8.7
Fixed in
✓ 5.15.158 5.15.x ✓ 6.1.90 6.1.x ✓ 6.6.30 6.6.x ✓ 6.8.9 6.8.x

References

9 total
Showing 5 of 9 references View all on NVD

Frequently asked questions

  • What is CVE-2024-35996?

    CVE-2024-35996 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15.156 onward and has been patched in 5.15.158, 6.1.90, 6.6.30 and others. CVE-2024-35996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-35996?

    CVE-2024-35996 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-35996?

    Yes. CVE-2024-35996 has been patched. Fixed versions include 5.15.158, 6.1.90, 6.6.30 and others. If you are running Linux kernel 5.15.156 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-35996 actively exploited?

    No. CVE-2024-35996 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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