PT-2025-8481 · Linux+3 · Linux Kernel+3

Yuntao Wang · Published 2022-04-30 · Updated 2025-09-29 · CVE-2022-49548

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A potential array overflow issue has been identified in the Linux kernel, specifically in the bpf trampoline get progs() function. The issue arises when the number of attached BPF TRAMP MODIFY RETURN bpf programs in a trampoline exceeds BPF MAX TRAMP PROGS, causing an array overflow due to the assignment '*progs++ = aux->prog'. This occurs because the 'cnt >= BPF MAX TRAMP PROGS' check does not account for BPF TRAMP MODIFY RETURN bpf programs.

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

Exploit

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

ALSA-2025_16880

BDU:2025-10249

CVE-2022-49548

RHSA-2023:2458

RHSA-2023_2458

SUSE-SU-2025:1176-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Suse

References · 1309

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49548.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-49548 · Security Note
• https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49548 · Vendor Advisory
• https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737 · Patch
• https://bdu.fstec.ru/vul/2025-10249 · Security Note
• https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d · Patch
• https://cve.org/CVERecord?id=CVE-2022-49548 · Security Note
• https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-49548 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49548 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49548 · Vendor Advisory