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CVE-2024-47716

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ARM: 9410/1: vfp: Use asm volatile in fmrx/fmxr macros Floating point instructions in userspace can crash some arm kernels buil…

Published Oct 21, 2024EPSS 0.22%

Overview

CVE-2024-47716 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

ARM: 9410/1: vfp: Use asm volatile in fmrx/fmxr macros

Floating point instructions in userspace can crash some arm kernels

built with clang/LLD 17.0.6:

BUG: unsupported FP instruction in kernel mode

FPEXC == 0xc0000780

Internal error: Oops - undefined instruction: 0 [#1] ARM

CPU: 0 PID: 196 Comm: vfp-reproducer Not tainted 6.10.0 #1

Hardware name: BCM2835

PC is at vfp_support_entry+0xc8/0x2cc

LR is at do_undefinstr+0xa8/0x250

pc : [<c0101d50>] lr : [<c010a80c>] psr: a0000013

sp : dc8d1f68 ip : 60000013 fp : bedea19c

r10: ec532b17 r9 : 00000010 r8 : 0044766c

r7 : c0000780 r6 : ec532b17 r5 : c1c13800 r4 : dc8d1fb0

r3 : c10072c4 r2 : c0101c88 r1 : ec532b17 r0 : 0044766c

Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none

Control: 00c5387d Table: 0251c008 DAC: 00000051

Register r0 information: non-paged memory

Register r1 inf

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/39caf610a63786b3b0ef3348ac015edc19827d6aRefgit.kernel.org/stable/c/89a906dfa8c3b21b3e5360f73c49234ac1eb885bRefgit.kernel.org/stable/c/9fc60f2bdd43e758bdf0305c0fc83221419ddb3fRefgit.kernel.org/stable/c/cd595d87e5fdd2fc09ea69359aa85e7f12f4b97b

How CyberStrike helps

Frequently asked questions

What is CVE-2024-47716?

CVE-2024-47716 is a medium-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-47716?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-47716?

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-2024-47716?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-47716 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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