PT-2024-11196 · Linux+1 · Linux Kernel+1

Published 2021-05-12 · Updated 2025-12-10 · CVE-2021-47147

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Medium

Base vector

AV:L/AC:L/PR:N/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 resource leak in the Linux kernel has been resolved. The issue occurred in the ptp: ocp module, where an error handling path failed to properly undo a successful 'pci ioremap bar()' call with a corresponding 'pci iounmap()' call. This fix ensures that such calls are properly undone, as is already done in the remove function.

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

Memory Leak

Weakness Enumeration

CWE-402

CWE-401

Related Identifiers

BDU:2025-07347

CVE-2021-47147

Affected Products

Astra Linux

Linux Kernel

References · 16

• https://git.kernel.org/stable/c/9c1bb37f8cad5e2ee1933fa1da9a6baa7876a8e4 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47147 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47147 · Vendor Advisory
• https://git.kernel.org/stable/c/0e38e702f1152479e6afac34f151dbfd99417f99 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47147 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47147 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-47147 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47147 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47147 · Security Note
• https://bdu.fstec.ru/vul/2025-07347 · Security Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9 · Note
• https://t.me/cveNotify/145274 · Telegram Post
• https://lore.kernel.org/linux-cve-announce/2024032559-CVE-2021-47147-e4bc@gregkh · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-47147 · Note
• https://twitter.com/CVEnew/status/1772190601359802530 · Twitter Post