PT-2025-40670 · Linux · Linux Kernel

Published 2025-10-04 · Updated 2025-11-25 · CVE-2022-50483

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 The Linux kernel contains a flaw within the enetc network driver related to buffer management during XDP redirect operations. Specifically, the issue arises from improper handling of reference counts on pages within the RX ring when xdp do redirect() fails. This can lead to memory leaks, particularly when dealing with multi-buffer packets. The root cause is zeroing the rx swbd->page pointer before it is fully utilized, hindering proper error handling. The fix involves moving the page flipping procedure to execute only upon successful redirection, avoiding the leak scenario.

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

Exploit

Related Identifiers

CVE-2022-50483

Affected Products

Linux Kernel

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50483.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-50483 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50483 · Vendor Advisory
• https://git.kernel.org/stable/c/306526331e7a37e714e11ab7c6d73eb004745224 · Patch
• https://git.kernel.org/stable/c/7fba523b51ccce5f7981f8a43ad84d664da68131 · Patch
• https://ubuntu.com/security/CVE-2022-50483 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50483 · Vendor Advisory
• https://git.kernel.org/stable/c/bcf2c1dc5358dcf7e34a68cdb6b0bbf967801efa · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50483 · Vendor Advisory
• https://git.kernel.org/stable/c/628050ec952d2e2e46ec9fb6aa07e41139e030c8 · Patch
• https://osv.dev/vulnerability/CVE-2022-50483 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50483 · Security Note
• https://git.kernel.org/linus/628050ec952d2e2e46ec9fb6aa07e41139e030c8 · Note
• https://twitter.com/CVEnew/status/1974496726883909633 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note