PT-2024-11887 · Linux+3 · Linux Kernel+3

Hou Tao · Published 2023-01-17 · Updated 2025-09-29 · CVE-2022-49030

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 size overflow issue has been identified in the Linux kernel, specifically in the libbpf component when handling ringbuf mmap. The maximum size of ringbuf is 2GB on x86-64 hosts, which can cause an overflow of u32 when mapping producer pages and data pages. This issue affects 32-bit applications running on 64-bit kernels, where the size of the read-only mmap region can also overflow size t. The fix involves casting the size of the read-only mmap region to u64 and checking for potential overflows during mmap.

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

Exploit

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALSA-2025_16880

ALT-PU-2023-1066

BDU:2025-01982

CVE-2022-49030

OESA-2024-2324

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Red Os

References · 93

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49030.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-47757 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-42301 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-49030 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-50036 · Security Note
• https://git.kernel.org/stable/c/927cbb478adf917e0a142b94baa37f06279cc466 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-43894 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49030 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-43871 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-49911 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-35990 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-47709 · Security Note
• https://git.kernel.org/stable/c/535a25ab4f9a45f74ba38ab71de95e97474922ed · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49029 · Security Note
• https://osv.dev/vulnerability/OESA-2024-2324 · Vendor Advisory