CVE-2024-42075

MEDIUM

Linux Kernel < 6.9 - Use-After-Free in BPF Arena Remap

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/87496a1b01e8e2e399428c0db25e106f7961d01e

Patch

https://git.kernel.org/stable/c/b90d77e5fd784ada62ddd714d15ee2400c28e1cf

Scores

CVSS v3 5.5

EPSS 0.0021

EPSS Percentile 11.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-416

Status published

Products (7)

Linux/Linux < 6.9

Linux/Linux 317460317a02a1af512697e6e964298dedd8a163 - 87496a1b01e8e2e399428c0db25e106f7961d01e

Linux/Linux 317460317a02a1af512697e6e964298dedd8a163 - b90d77e5fd784ada62ddd714d15ee2400c28e1cf

Linux/Linux 6.10

Linux/Linux 6.9

Linux/Linux 6.9.8 - 6.9.*

linux/linux_kernel < 6.9

Published Jul 29, 2024

Tracked Since Feb 18, 2026