What is CVE-2024-26844?

CVE-2024-26844 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.0 onward and patched in 6.1.80, 6.6.19, 6.7.7 and others. CVE-2024-26844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26844?

CVE-2024-26844 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-2024-26844?

Yes, CVE-2024-26844 has been patched. Fixed versions include 6.1.80, 6.6.19, 6.7.7 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26844 actively exploited?

CVE-2024-26844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26844

Medium

In the Linux kernel, the following vulnerability has been resolved: block: Fix WARNING in _copy_from_iter Syzkaller reports a warning in _copy_from_iter because an iov_iter is supposedly used in the wrong direction. The reason is that syzcaller managed to generate a request with a transfer direction of SG_DXFER_TO_FROM_DEV. This instructs the kernel to copy user buffers into the kernel, read into the copied buffers and then copy the data back to user space. Thus the iovec is used in both directions. Detect this situation in the block layer and construct a new iterator with the correct direction for the copy-in.

Package Linux Kernel

Published 2024-04-17

Last modified 2025-04-02

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 4.0 and later are affected. Fixed in 6.1.80, 6.6.19, 6.7.7, 6.8 and their respective stable series.

Affected from

≥ 4.0

Fixed in

✓ 6.1.80 6.1.x ✓ 6.6.19 6.6.x ✓ 6.7.7 6.7.x ✓ 6.8

References

4 total

Kernel Git
https://git.kernel.org/stable/c/0f1bae071de9967602807472921829a54b2e5956

Patch
Kernel Git
https://git.kernel.org/stable/c/13f3956eb5681a4045a8dfdef48df5dc4d9f58a6

Patch
Kernel Git
https://git.kernel.org/stable/c/8fc80874103a5c20aebdc2401361aa01c817f75b

Patch
Kernel Git
https://git.kernel.org/stable/c/cbaf9be337f7da25742acfce325119e3395b1f1b

Patch

Details

CVE ID CVE-2024-26844

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-17

Modified 2025-04-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26844?

CVE-2024-26844 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.0 onward and has been patched in 6.1.80, 6.6.19, 6.7.7 and others. CVE-2024-26844 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26844?

CVE-2024-26844 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-2024-26844?

Yes. CVE-2024-26844 has been patched. Fixed versions include 6.1.80, 6.6.19, 6.7.7 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26844 actively exploited?

No. CVE-2024-26844 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.