PT-2024-11207 · Linux+2 · Linux Kernel+2

Dan Carpenter · Published 2021-05-10 · Updated 2024-05-30 · CVE-2021-47159

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 A vulnerability has been resolved in the Linux kernel. The issue occurs when ds->ops->get sset count() fails, resulting in a negative error code, such as -EOPNOTSUPP. Because i is an unsigned int, the negative error code is type promoted to a very high value, causing the loop to corrupt memory until the system crashes. The fix involves checking for error codes and changing the type of i to just int.

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

Infinite Loop

Incorrect Type Conversion or Cast

Weakness Enumeration

CWE-835

CWE-704

Related Identifiers

BDU:2025-13703

CVE-2021-47159

OESA-2024-1483

OESA-2024-1484

SUSE-SU-2024:1643-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1870-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 506

• https://nvd.nist.gov/vuln/detail/CVE-2021-47143 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47142 · Security Note
• https://osv.dev/vulnerability/CVE-2021-47159 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13703 · Security Note
• https://ubuntu.com/security/CVE-2021-47159 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1646-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52578 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-36783 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52475 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47145 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47167 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47161 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47163 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52510 · Security Note
• https://git.kernel.org/stable/c/a269333fa5c0c8e53c92b5a28a6076a28cde3e83 · Patch