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CVE-2024-46741

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix double free of 'buf' in error path smatch warning: drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: dou…

Published Sep 18, 2024CWE-415EPSS 0.24%

Overview

CVE-2024-46741 is a high-severity vulnerability. It was published on September 18, 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:

misc: fastrpc: Fix double free of 'buf' in error path

smatch warning:

drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf'

In fastrpc_req_mmap() error path, the fastrpc buffer is freed in

fastrpc_req_munmap_impl() if unmap is successful.

But in the end, there is an unconditional call to fastrpc_buf_free().

So the above case triggers the double free of fastrpc buf.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/4753cc37b6606ef9a7ec22861d380d45e2707f9aRefgit.kernel.org/stable/c/bfc1704d909dc9911a558b1a5833d3d61a43a1f2Refgit.kernel.org/stable/c/e8c276d4dc0e19ee48385f74426aebc855b49aafRefgit.kernel.org/stable/c/f77dc8a75859e559f3238a6d906206259227985e

How CyberStrike helps

Frequently asked questions

What is CVE-2024-46741?

CVE-2024-46741 is a high-severity vulnerability. It was published on September 18, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-46741?

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-2024-46741?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-46741?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-46741 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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