CVE-2022-49030

Katalog CVE

CVSS 7.8 · High EPSS 0,28%

Kerentanan Integer Overflow or Wraparound pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries will overflow u32 when mapping producer page and data pages. Only casting max_entries to size_t is not enough, because for 32-bits application on 64-bits kernel the size of read-only mmap region also could overflow size_t. So fixing it by casting the size of read-only mmap region into a __u64 and checking whether or not there will be overflow during mmap.

Rincian

Terbit di NVD

21 Oktober 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,28% peluang dieksploitasi; lebih tinggi dari 18,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0140e079a42064680394fff1199a7b5483688dec patch
• https://git.kernel.org/stable/c/535a25ab4f9a45f74ba38ab71de95e97474922ed patch
• https://git.kernel.org/stable/c/8a549ab6724520aa3c07f47e0eba820293551490 patch
• https://git.kernel.org/stable/c/927cbb478adf917e0a142b94baa37f06279cc466 patch