PT-2024-11835 · Linux+4 · Linux Kernel+4

Paolo Abeni + 1 · Published 2022-12-01 · Updated 2025-09-29 · CVE-2022-48970

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 a NULL pointer dereference in the sk user ns() function, which is caused by the newly allocated skb not having sk in the unix diag get exact() function. This can lead to a denial of service. The unix diag get exact() function is used to get the exact socket information. The sk diag fill() function is also involved, which fills the socket information. The NETLINK CB(in skb).sk is used to get the user namespace.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-399

CWE-476

Related Identifiers

ALSA-2025_16880

ALT-PU-2023-1066

BDU:2025-01711

CVE-2022-48970

OPENSUSE-SU-2024_3983-1

OPENSUSE-SU-2024_3985-1

OPENSUSE-SU-2024_4131-1

OPENSUSE-SU-2024_4140-1

SUSE-SU-2024:3983-1

SUSE-SU-2024:3985-1

SUSE-SU-2024:4081-1

SUSE-SU-2024:4082-1

SUSE-SU-2024:4103-1

SUSE-SU-2024:4131-1

SUSE-SU-2024:4140-1

SUSE-SU-2024:4364-1

Affected Products

Alt Linux

Astra Linux

Linux Kernel

Red Os

Suse

References · 1009

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48970.json · Exploit
• https://git.kernel.org/stable/c/5c014eb0ed6c8c57f483e94cc6e90f34ce426d91 · Patch
• https://git.kernel.org/stable/c/c66d78aee55dab72c92020ebfbebc464d4f5dd2a · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:3985-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-48970 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-48970 · Security Note
• https://git.kernel.org/stable/c/575a6266f63dbb3b8eb1da03671451f0d81b8034 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:4364-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9c1d6f79a2c7b8221dcec27defc6dc461052ead4 · Patch
• https://git.kernel.org/stable/c/b3abe42e94900bdd045c472f9c9be620ba5ce553 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:4081-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-48970 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-01711 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:4103-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:4131-1 · Vendor Advisory