CVE-2024-56768
MEDIUMLinux Kernel 6.10-6.12.8 - Denial of Service via bpf_get_smp_processor_id() on !CONFIG_SMP
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2024-56768. PoCs published by fabrizioperna.
AI-analyzed exploit summary This repository contains a detailed technical analysis and breakdown of the CVE-2018-18445 vulnerability in the eBPF verifier, including explanations of BPF instruction macros and utility functions. It provides a comprehensive guide to understanding the exploit but does not include functional exploit code for CVE-2024-56768.
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case.
Exploits (1)
This repository contains a detailed technical analysis and breakdown of the CVE-2018-18445 vulnerability in the eBPF verifier, including explanations of BPF instruction macros and utility functions. It provides a comprehensive guide to understanding the exploit but does not include functional exploit code for CVE-2024-56768.
References (2)
Scores
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H