PT-2024-11464 · Linux+2 · Linux Kernel+2

Miaohe Lin · Published 2021-10-18 · Updated 2025-01-14 · CVE-2021-47470

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 potential use-after-free issue has been identified in the Linux kernel, specifically in the slab debugfs fops function. This occurs when sysfs slab add fails, and subsequently, debugfs slab add() is called for 's', which will be freed soon, leading to a use-after-free situation when slab debugfs fops uses 's' later.

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:2025-07468

CVE-2021-47470

OPENSUSE-SU-2024_2189-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1244

• https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2019-1 · Vendor Advisory
• https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47470 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-47470 · Security Note
• https://bdu.fstec.ru/vul/2025-07468 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47470 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2190-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47470 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2008-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47470 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47470 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2189-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2011-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47470 · Vendor Advisory