PT-2025-40715 · Linux · Linux Kernel

Published 2023-03-21 · Updated 2025-10-07 · CVE-2023-53573

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 flaw exists in the Linux kernel related to clock functionality within the rs9 module. A previous commit disabled the cache without removing cache synchronization during the resume process, leading to a kernel panic when the map->cache ops is unset due to REGCACHE NONE. The fix re-enables the flat cache to support resuming and ensures the num reg defaults raw is used to read cache defaults from hardware, accommodating registers that are hardware-strapped and cannot be provided via software.

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

Exploit

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

BDU:2026-04434

CVE-2023-53573

Affected Products

Linux Kernel

References · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53573.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53573 · Security Note
• https://git.kernel.org/stable/c/a983967602675880d6160a17ace2c0f48717ff33 · Patch
• https://git.kernel.org/stable/c/632e04739c8f45c2d9ca4d4c5bd18d80c2ac9296 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53573 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53573 · Vendor Advisory
• https://git.kernel.org/stable/c/74f4471ad64214dd5046213ebdd6e0930da7bd2c · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53573 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53573 · Security Note
• https://bdu.fstec.ru/vul/2026-04434 · Security Note
• https://ubuntu.com/security/CVE-2023-53573 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53573 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53573 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.25 · Note
• https://git.kernel.org/linus/632e04739c8f45c2d9ca4d4c5bd18d80c2ac9296 · Note