PT-2025-53159 · Linux+1 · Linux Kernel+1

Published 2025-12-24 · Updated 2025-12-25 · CVE-2023-54082

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5

Description The Linux kernel contained a flaw in the unix stream sendpage() function where a null pointer dereference could occur. This issue arose from attempting to add data to the last socket buffer (skb) in the peer's receive queue without proper locking. A race condition existed where unix stream sendpage() could access an skb that was being released by garbage collection, leading to a use-after-free condition. The issue was resolved with a patch that enforces locking of the peer's receive queue within the unix stream sendpage() function.

Recommendations Update to version 6.5 or later.

Exploit

Related Identifiers

CVE-2023-54082

ECHO-1DA9-3D77-9266

Affected Products

Debian

Linux Kernel

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54082.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-54082 · Security Note
• https://ubuntu.com/security/CVE-2023-54082 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54082 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-54082 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54082 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54082 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54082 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54082 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2023-54082 · Note
• https://twitter.com/CVEnew/status/2004294871171940381 · Twitter Post
• https://git.kernel.org/stable/c/c080cee930303124624fe64fc504f66c815ee6b9 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note