What is CVE-2024-35880?

CVE-2024-35880 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6.5 onward and patched in 6.6.26, 6.8.5 and 6.9. CVE-2024-35880 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-35880?

CVE-2024-35880 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-2024-35880?

Yes, CVE-2024-35880 has been patched. Fixed versions include 6.6.26, 6.8.5 and 6.9. If you are running Linux kernel 6.6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-35880 actively exploited?

CVE-2024-35880 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-35880

Medium

In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: hold io_buffer_list reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the io_uring lock. Rely on the fact that we can lookup the buffer list under RCU now and grab a reference to it, preventing it from being unregistered until we're done with it. The lookup returns the io_buffer_list directly with it referenced.

Package Linux Kernel

Published 2024-05-19

Last modified 2025-09-24

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 6.6.5, 6.7 and later are affected. Fixed in 6.6.26, 6.8.5, 6.9 and their respective stable series.

Affected from

≥ 6.6.5 ≥ 6.7

Fixed in

✓ 6.6.26 6.6.x ✓ 6.8.5 6.8.x ✓ 6.9

References

3 total

Kernel Git
https://git.kernel.org/stable/c/561e4f9451d65fc2f7eef564e0064373e3019793

Patch
Kernel Git
https://git.kernel.org/stable/c/5fd8e2359498043e0b5329a05f02d10a9eb91eb9

Patch
Kernel Git
https://git.kernel.org/stable/c/65938e81df2197203bda4b9a0c477e7987218d66

Patch

Details

CVE ID CVE-2024-35880

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-19

Modified 2025-09-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-35880?

CVE-2024-35880 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6.5 onward and has been patched in 6.6.26, 6.8.5 and 6.9. CVE-2024-35880 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-35880?

CVE-2024-35880 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-2024-35880?

Yes. CVE-2024-35880 has been patched. Fixed versions include 6.6.26, 6.8.5 and 6.9. If you are running Linux kernel 6.6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-35880 actively exploited?

No. CVE-2024-35880 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.