What is CVE-2024-35993?

CVE-2024-35993 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6 onward and patched in 6.6.30, 6.8.9 and 6.9. CVE-2024-35993 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35993?

CVE-2024-35993 has a CVSS score of 5.5 out of 10, rated Medium severity. 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-2024-35993?

Yes, CVE-2024-35993 has been patched. Fixed versions include 6.6.30, 6.8.9 and 6.9. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-35993 actively exploited?

CVE-2024-35993 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-35993

Medium

In the Linux kernel, the following vulnerability has been resolved: mm: turn folio_test_hugetlb into a PageType The current folio_test_hugetlb() can be fooled by a concurrent folio split into returning true for a folio which has never belonged to hugetlbfs. This can't happen if the caller holds a refcount on it, but we have a few places (memory-failure, compaction, procfs) which do not and should not take a speculative reference. Since hugetlb pages do not use individual page mapcounts (they are always fully mapped and use the entire_mapcount field to record the number of mappings), the PageType field is available now that page_mapcount() ignores the value in this field. In compaction and with CONFIG_DEBUG_VM enabled, the current implementation can result in an oops, as reported by Luis. This happens since 9c5ccf2db04b ("mm: remove HUGETLB_PAGE_DTOR") effectively added some VM_BUG_ON() checks in the PageHuge() testing path. [[email protected]: update vmcoreinfo]

Package Linux Kernel

Published 2024-05-20

Last modified 2025-09-24

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 6.6 and later are affected. Fixed in 6.6.30, 6.8.9, 6.9 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.30 6.6.x ✓ 6.8.9 6.8.x ✓ 6.9

References

3 total

Kernel Git
https://git.kernel.org/stable/c/2431b5f2650dfc47ce782d1ca7b02d6b3916976f

Patch
Kernel Git
https://git.kernel.org/stable/c/9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32

Patch
Kernel Git
https://git.kernel.org/stable/c/d99e3140a4d33e26066183ff727d8f02f56bec64

Patch

Details

CVE ID CVE-2024-35993

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-20

Modified 2025-09-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-35993?

CVE-2024-35993 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.30, 6.8.9 and 6.9. CVE-2024-35993 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35993?

CVE-2024-35993 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-2024-35993?

Yes. CVE-2024-35993 has been patched. Fixed versions include 6.6.30, 6.8.9 and 6.9. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-35993 actively exploited?

No. CVE-2024-35993 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.