PT-2022-7704 · Linux+2 · Linux Kernel+2

Syzbot · Published 2022-02-03 · Updated 2025-10-07 · CVE-2022-48819

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The issue is related to the Linux kernel's handling of mixed splice()/sendmsg(MSG ZEROCOPY) cases over the same TCP socket, which could trigger a warning in inet sock destruct(). The problem arises from the sendpage() path being forgotten, and the need for downgrading pure zerocopy status to keep sk forward alloc synced. This could potentially lead to a denial of service.

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

Exploit

Weakness Enumeration

CWE-99

Related Identifiers

BDU:2025-00869

CVE-2022-48819

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48819.json · Exploit
• https://bdu.fstec.ru/vul/2025-00869 · Security Note
• https://ubuntu.com/security/CVE-2022-48819 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-48819 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48819 · Vendor Advisory
• https://git.kernel.org/stable/c/f8d9d938514f46c4892aff6bfe32f425e84d81cc · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-48819 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-48819 · Vendor Advisory
• https://git.kernel.org/stable/c/47f3860c4931175f112f28dcac66eacca9b1040f · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-48819 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-48819 · Security Note
• https://t.me/cveNotify/137721 · Telegram Post
• https://lore.kernel.org/linux-cve-announce/2024071649-CVE-2022-48819-16f6@gregkh · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-cve-2022-48816-cve-2022-48819 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note