PT-2025-53059 · Linux+1 · Linux Kernel+1

Published 2025-12-24 · Updated 2025-12-27 · CVE-2023-54061

Positive Technologies (AI Summary)

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

Description The Linux kernel contained an incorrect exception table annotation within the clear user rep good() function. This issue stemmed from the annotation pointing to a register move instead of the actual instruction performing user space access. Consequently, if a user access exception occurred, the exception handler would fail to locate the instruction, leading to a kernel oops report that could be misinterpreted as a filesystem issue. The code responsible for this issue was removed in a previous commit, but the incorrect annotation persisted. The root cause was related to memory clearing and copying routines using REP GOOD or ERMS. A more comprehensive fix involves applying a series of upstream commits to clean up these routines.

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

Exploit

Related Identifiers

CVE-2023-54061

Affected Products

Debian

Linux Kernel

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54061.json · Exploit
• https://ubuntu.com/security/CVE-2023-54061 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54061 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54061 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54061 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54061 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-54061 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54061 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54061 · Security Note
• https://git.kernel.org/stable/c/b805d212c394f291f116b12c53401e7ba0c4d408 · Note
• https://twitter.com/CVEnew/status/2004457782997835809 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://docs.bell-sw.com/security/cves/CVE-2023-54061 · Note