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CVE-2024-56615

7.8 · HIGH
Published Dec 27, 2024 linux CWE-787 EPSS 0.26% (17th pctl)

Overview

CVE-2024-56615 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: fix OOB devmap writes when deleting elements

Jordy reported issue against XSKMAP which also applies to DEVMAP - the

index used for accessing map entry, due to being a signed integer,

causes the OOB writes. Fix is simple as changing the type from int to

u32, however, when compared to XSKMAP case, one more thing needs to be

addressed.

When map is released from system via dev_map_free(), we iterate through

all of the entries and an iterator variable is also an int, which

implies OOB accesses. Again, change it to be u32.

Example splat below:

[ 160.724676] BUG: unable to handle page fault for address: ffffc8fc2c001000

[ 160.731662] #PF: supervisor read access in kernel mode

[ 160.736876] #PF: error_code(0x0000) - not-present page

[ 160.742095] PGD 0 P4D 0

[ 160.744678] Oops: Oops: 0000 [#1] PREEMPT SMP

[ 160.749106] CPU: 1 UID: 0 PID: 520 Comm: kworker/u145:12 Not tainted 6.12.0-rc1+ #487

[ 160.757050] Hard

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 4.14, < 5.4.287 Affected

Frequently Asked Questions

What is CVE-2024-56615?

CVE-2024-56615 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-56615?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56615?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-56615?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56615 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.