PT-2025-8006 · Linux+4 · Linux Kernel+4

Syzbot · Published 2022-04-08 · Updated 2025-09-29 · CVE-2022-49078

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 read out of bounds issue has been identified in the Linux kernel's LZ4 decompression routine. This occurs when the compressed data is corrupted, leading to a use-after-free (UAF) condition. The issue arises during partial decoding when the output buffer is filled or an offset for a following match cannot be read. The problem has been reported by KASAN and fixed by the lz4 upstream.

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

BDU:2025-06553

CVE-2022-49078

OPENSUSE-SU-2025_1263-1

RHSA-2024:9315

RHSA-2024_9315

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

Affected Products

Astra Linux

Linux Kernel

Red Hat

Red Os

Suse

References · 1355

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49078.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:1263-1 · Vendor Advisory
• https://git.kernel.org/stable/c/6adc01a7aa37445dafe8846faa0610a86029b253 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49078 · Vendor Advisory
• https://git.kernel.org/stable/c/eafc0a02391b7b36617b36c97c4b5d6832cf5e24 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49078 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3 · Patch
• https://git.kernel.org/stable/c/467d5e200ab4486b744fe1776154a43d1aa22d4b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://git.kernel.org/stable/c/e64dbe97c05c769525cbca099ddbd22485630235 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49078 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49078 · Security Note