CVE-2024-56662

Medium

In the Linux kernel, the following vulnerability has been resolved: acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl Fix an issue detected by syzbot with KASAN: BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/ core.c:416 [inline] BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0 drivers/acpi/nfit/core.c:459 The issue occurs in cmd_to_func when the call_pkg->nd_reserved2 array is accessed without verifying that call_pkg points to a buffer that is appropriately sized as a struct nd_cmd_pkg. This can lead to out-of-bounds access and undefined behavior if the buffer does not have sufficient space. To address this, a check was added in acpi_nfit_ctl() to ensure that buf is not NULL and that buf_len is less than sizeof(*call_pkg) before accessing it. This ensures safe access to the members of call_pkg, including the nd_reserved2 array.

Package Linux Kernel
Published 2024-12-27
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

6.0

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

Weakness type

CWE-125

CVE-2024-56662 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.14.176, 4.19.31, 5.0.4, 5.1 and later are affected. Fixed in 5.10.232, 5.15.175, 6.1.121, 6.6.67, 6.12.6, 6.13 and their respective stable series.

Affected from
≥ 4.14.176 ≥ 4.19.31 ≥ 5.0.4 ≥ 5.1
Fixed in
✓ 5.10.232 5.10.x ✓ 5.15.175 5.15.x ✓ 6.1.121 6.1.x ✓ 6.6.67 6.6.x ✓ 6.12.6 6.12.x ✓ 6.13

References

The following references provide additional information about CVE-2024-56662 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

6 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2024-56662?

    CVE-2024-56662 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.0 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 4.14.176 onward and has been patched in 5.10.232, 5.15.175, 6.1.121 and others. CVE-2024-56662 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-56662?

    CVE-2024-56662 has a CVSS score of 6.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H .

  • Is there a patch available for CVE-2024-56662?

    Yes — CVE-2024-56662 has been patched. Fixed versions include 5.10.232, 5.15.175, 6.1.121 and others. If you are running Linux kernel 4.14.176 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-56662 actively exploited?

    No — CVE-2024-56662 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Out-of-bounds Read (CWE-125)?

    The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →

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