PT-2024-11119 · Linux+1 · Linux Kernel+1

Lv Yunlong · Published 2021-04-22 · Updated 2024-12-09 · CVE-2021-47017

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Description A use after free issue has been resolved in the Linux kernel, specifically in the ath10k htc send bundle function. The bundle skb could be freed by dev kfree skb any(bundle skb), but it is used later by bundle skb->len. To fix this, the patch replaces bundle skb->len with skb len after bundle skb has been freed.

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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-05311

CVE-2021-47017

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Linux Kernel

Suse

References · 348

• https://osv.dev/vulnerability/CVE-2021-47017 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-05311 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47017 · Vendor Advisory
• https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47017 · Vendor Advisory
• https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676 · Patch
• https://cve.org/CVERecord?id=CVE-2021-47017 · Security Note
• https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47017 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47017 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1465-1 · Vendor Advisory
• https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65 · Patch
• https://ubuntu.com/security/CVE-2021-47017 · Vendor Advisory
• https://bugzilla.suse.com/1221990 · Note