CVE-2024-44947

Medium

In the Linux kernel, the following vulnerability has been resolved: fuse: Initialize beyond-EOF page contents before setting uptodate fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter).

Package Linux Kernel
Published 2024-09-02
Last modified 2025-11-03
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
High
Integrity
None
Availability
None
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-665

CVE-2024-44947 is classified as CWE-665

See CWE-665 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 2.6.36 and later are affected. Fixed in 4.19.321, 5.4.283, 5.10.225, 5.15.166, 6.1.107, 6.6.48, 6.10.7, 6.11 and their respective stable series.

Affected from
≥ 2.6.36
Fixed in
✓ 4.19.321 4.19.x ✓ 5.4.283 5.4.x ✓ 5.10.225 5.10.x ✓ 5.15.166 5.15.x ✓ 6.1.107 6.1.x ✓ 6.6.48 6.6.x ✓ 6.10.7 6.10.x ✓ 6.11

References

The following references provide additional information about CVE-2024-44947 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

8 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2024-44947?

    CVE-2024-44947 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.36 onward and has been patched in 4.19.321, 5.4.283, 5.10.225 and others. CVE-2024-44947 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-44947?

    CVE-2024-44947 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:H/I:N/A:N .

  • Is there a patch available for CVE-2024-44947?

    Yes — CVE-2024-44947 has been patched. Fixed versions include 4.19.321, 5.4.283, 5.10.225 and others. If you are running Linux kernel 2.6.36 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-44947 actively exploited?

    No — CVE-2024-44947 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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