PT-2024-29729 · Linux+2 · Linux Kernel+2

Pengfei Xu · Published 2024-06-17 · Updated 2025-10-03 · CVE-2024-42075

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the bpf arena logic in the Linux kernel, which did not account for the mremap operation. This led to a potential use-after-free scenario in the arena vm close function. To prevent this, a reference count was added for multiple mmap events.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

ALT-PU-2024-10855

ALT-PU-2025-12647

AZL-47065

AZL-47186

BDU:2025-02996

CVE-2024-42075

Affected Products

Alt Linux

Astra Linux

Linux Kernel

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42075.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-42075 · Vendor Advisory
• https://git.kernel.org/stable/c/87496a1b01e8e2e399428c0db25e106f7961d01e · Patch
• https://git.kernel.org/stable/c/b90d77e5fd784ada62ddd714d15ee2400c28e1cf · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-42075 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2024-42075 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-47065 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-42075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-42075 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-02996 · Security Note
• https://cve.org/CVERecord?id=CVE-2024-42075 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2024-42075 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-47186 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-42075 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2024-42075 · Note