PT-2025-18874 · Linux+4 · Linux Kernel+4

Published 2023-11-07 · Updated 2026-02-02 · CVE-2023-53110

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 A vulnerability in the Linux kernel has been identified, related to a race condition between smc smcr terminate all() and smc buf create(). This issue can lead to a panic when terminating all link groups during a stress test on SMC-R. The problem occurs due to a NULL sndbuf desc in smc cdc tx handler(), which is accessed during CQE processing. The patch aims to fix this issue by checking sndbuf desc before sending any CDC message, ensuring no null pointer is encountered.

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

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

CESA-2023_7077

CVE-2023-53110

RHSA-2023:6583

RHSA-2023:7077

RHSA-2023_6583

RHSA-2023_7077

Affected Products

Astra Linux

Centos

Linux Kernel

Red Hat

Red Os

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53110.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2023-53110 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53110 · Vendor Advisory
• https://git.kernel.org/stable/c/22a825c541d775c1dbe7b2402786025acad6727b · Patch
• https://cve.org/CVERecord?id=CVE-2023-53110 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53110 · Vendor Advisory
• https://git.kernel.org/stable/c/3ebac7cf0a184a8102821a7a00203f02bebda83c · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53110 · Vendor Advisory
• https://git.kernel.org/stable/c/b108bd9e6be000492ebebe867daa699285978a10 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53110 · Security Note
• https://ubuntu.com/security/CVE-2023-53110 · Vendor Advisory
• https://git.kernel.org/stable/c/3c270435db8aa34929263dddae8fd050f5216ecb · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53110 · Vendor Advisory
• https://git.kernel.org/stable/c/31817c530768b0199771ec6019571b4f0ddbf230 · Patch
• https://twitter.com/transilienceai/status/1919367428733341948 · Twitter Post