What is CVE-2024-26590?

CVE-2024-26590 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 5.16 onward and patched in 6.1.80, 6.6.14, 6.7.2 and others. CVE-2024-26590 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26590?

CVE-2024-26590 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-2024-26590?

Yes, CVE-2024-26590 has been patched. Fixed versions include 6.1.80, 6.6.14, 6.7.2 and others. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26590 actively exploited?

CVE-2024-26590 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2024-26590

Medium

In the Linux kernel, the following vulnerability has been resolved: erofs: fix inconsistent per-file compression format EROFS can select compression algorithms on a per-file basis, and each per-file compression algorithm needs to be marked in the on-disk superblock for initialization. However, syzkaller can generate inconsistent crafted images that use an unsupported algorithmtype for specific inodes, e.g. use MicroLZMA algorithmtype even it's not set in `sbi->available_compr_algs`. This can lead to an unexpected "BUG: kernel NULL pointer dereference" if the corresponding decompressor isn't built-in. Fix this by checking against `sbi->available_compr_algs` for each m_algorithmformat request. Incorrect !erofs_sb_has_compr_cfgs preset bitmap is now fixed together since it was harmless previously.

Package Linux Kernel

Published 2024-02-22

Last modified 2025-04-22

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

Weakness type

CWE-476

CVE-2024-26590 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.16 and later are affected. Fixed in 6.1.80, 6.6.14, 6.7.2, 6.8 and their respective stable series.

Affected from

≥ 5.16

Fixed in

✓ 6.1.80 6.1.x ✓ 6.6.14 6.6.x ✓ 6.7.2 6.7.x ✓ 6.8

References

4 total

Kernel Git
https://git.kernel.org/stable/c/118a8cf504d7dfa519562d000f423ee3ca75d2c4

Patch
Kernel Git
https://git.kernel.org/stable/c/47467e04816cb297905c0f09bc2d11ef865942d9

Patch
Kernel Git
https://git.kernel.org/stable/c/823ba1d2106019ddf195287ba53057aee33cf724

Patch
Kernel Git
https://git.kernel.org/stable/c/eed24b816e50c6cd18cbee0ff0d7218c8fced199

Patch

Details

CVE ID CVE-2024-26590

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-22

Modified 2025-04-22

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26590?

CVE-2024-26590 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 5.16 onward and has been patched in 6.1.80, 6.6.14, 6.7.2 and others. CVE-2024-26590 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26590?

CVE-2024-26590 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-2024-26590?

Yes. CVE-2024-26590 has been patched. Fixed versions include 6.1.80, 6.6.14, 6.7.2 and others. If you are running Linux kernel 5.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26590 actively exploited?

No. CVE-2024-26590 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.