What is CVE-2024-35872?

CVE-2024-35872 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-35872 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35872?

CVE-2024-35872 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-2024-35872?

No patch is currently available for CVE-2024-35872. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-35872 actively exploited?

CVE-2024-35872 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-35872

Medium

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix GUP-fast succeeding on secretmem folios folio_is_secretmem() currently relies on secretmem folios being LRU folios, to save some cycles. However, folios might reside in a folio batch without the LRU flag set, or temporarily have their LRU flag cleared. Consequently, the LRU flag is unreliable for this purpose. In particular, this is the case when secretmem_fault() allocates a fresh page and calls filemap_add_folio()->folio_add_lru(). The folio might be added to the per-cpu folio batch and won't get the LRU flag set until the batch was drained using e.g., lru_add_drain(). Consequently, folio_is_secretmem() might not detect secretmem folios and GUP-fast can succeed in grabbing a secretmem folio, crashing the kernel when we would later try reading/writing to the folio, because the folio has been unmapped from the directmap. Fix it by removing that unreliable check.

Package Linux Kernel

Published 2024-05-19

Last modified 2025-09-24

CVSS version 3.1

Patch available

Awaiting data

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

References

The following references provide additional information about CVE-2024-35872 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/201e4aaf405dfd1308da54448654053004c579b5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/43fad1d0284de30159661d0badfc3cbaf7e6f8f8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/65291dcfcf8936e1b23cfd7718fdfde7cfaf7706
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2024-35872

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-19

Modified 2025-09-24

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-35872?

CVE-2024-35872 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-35872 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35872?

CVE-2024-35872 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-2024-35872?

No patch is currently available for CVE-2024-35872. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-35872 actively exploited?

No — CVE-2024-35872 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.