What is CVE-2024-26977?

CVE-2024-26977 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.15 onward and patched in 5.15.154, 6.1.84, 6.6.24 and others. CVE-2024-26977 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26977?

CVE-2024-26977 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-2024-26977?

Yes, CVE-2024-26977 has been patched. Fixed versions include 5.15.154, 6.1.84, 6.6.24 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26977 actively exploited?

CVE-2024-26977 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26977

Medium

In the Linux kernel, the following vulnerability has been resolved: pci_iounmap(): Fix MMIO mapping leak The #ifdef ARCH_HAS_GENERIC_IOPORT_MAP accidentally also guards iounmap(), which means MMIO mappings are leaked. Move the guard so we call iounmap() for MMIO mappings.

Package Linux Kernel

Published 2024-05-01

Last modified 2025-09-18

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 and later are affected. Fixed in 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 5.15.154 5.15.x ✓ 6.1.84 6.1.x ✓ 6.6.24 6.6.x ✓ 6.7.12 6.7.x ✓ 6.8.3 6.8.x ✓ 6.9

References

6 total

Kernel Git
https://git.kernel.org/stable/c/5e4b23e7a7b33a1e56bfa3e5598138a2234d55b6

Patch
Kernel Git
https://git.kernel.org/stable/c/6d21d0356aa44157a62e39c0d1a13d4c69a8d0c8

Patch
Kernel Git
https://git.kernel.org/stable/c/7626913652cc786c238e2dd7d8740b17d41b2637

Patch
Kernel Git
https://git.kernel.org/stable/c/af280e137e273935f2e09f4d73169998298792ed

Patch
Kernel Git
https://git.kernel.org/stable/c/b5d40f02e7222da032c2042aebcf2a07de9b342f

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2024-26977

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-01

Modified 2025-09-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26977?

CVE-2024-26977 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 onward and has been patched in 5.15.154, 6.1.84, 6.6.24 and others. CVE-2024-26977 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26977?

CVE-2024-26977 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-2024-26977?

Yes. CVE-2024-26977 has been patched. Fixed versions include 5.15.154, 6.1.84, 6.6.24 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26977 actively exploited?

No. CVE-2024-26977 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.