PT-2024-11198 · Linux+3 · Linux Kernel+3

Anirudh Rayabharam · Published 2021-05-13 · Updated 2025-11-10 · CVE-2021-47149

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 issue is related to a potential null pointer dereference in the fmvj18x get hwinfo() function. If ioremap fails, it will result in a NULL pointer dereference. To fix this, the return value of ioremap is checked, and -1 is returned to the caller in case of failure.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-07358

CVE-2021-47149

OESA-2024-1526

OESA-2024-1535

SUSE-SU-2024:1643-1

SUSE-SU-2024:1646-1

SUSE-SU-2024:1870-1

USN-7797-1

USN-7797-2

USN-7797-3

USN-7865-1

Affected Products

Astra Linux

Linux Kernel

Suse

Ubuntu

References · 518

• https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210f · Patch
• https://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50 · Patch
• https://ubuntu.com/security/CVE-2023-52574 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-26777 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47149 · Security Note
• https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7 · Patch
• https://osv.dev/vulnerability/USN-7797-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7797-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47319 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7865-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-26810 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1646-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47121 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47149 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38352 · Vendor Advisory