PT-2025-53049 · Linux · Linux Kernel

Published 2023-08-17 · Updated 2026-03-24 · CVE-2023-54051

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.5.0-rc5-next-20230809-syzkaller

Description A missing check in virtio net hdr to skb() allowed a kernel crash. Specifically, the issue arises when gso size is set to GSO BY FRAGS (0xffff), a magic value used internally by the kernel. This can lead to a general protection fault and potential kernel crashes, as demonstrated by syzbot. The vulnerable code is located in the skb segment function within net/core/skbuff.c.

Recommendations Update to a version newer than 6.5.0-rc5-next-20230809-syzkaller.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-01250

CVE-2023-54051

SUSE-SU-2026:0263-1

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:0316-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Linux Kernel

References · 2256

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54051.json · Exploit
• https://osv.dev/vulnerability/BELL-CVE-2023-54051 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54051 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54051 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01250 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54051 · Security Note
• https://ubuntu.com/security/CVE-2023-54051 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory