PT-2021-8261 · Linux+1 · Linux Kernel+1

Himanshu Madhani + 2 · Published 2021-05-12 · Updated 2024-12-10 · CVE-2021-47077

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 NULL pointer dereference in the qedf update link speed() function when shost data is not initialized. This occurs when the qedf link update() API is called from QED. The problem results in a NULL pointer dereference when trying to update supported speeds. To fix this, a NULL pointer check should be added before dereferencing shost data.

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:2025-00799

CVE-2021-47077

OESA-2024-1483

OESA-2024-1484

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:0925-1

SUSE-SU-2024:0975-1

SUSE-SU-2024:0976-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Linux Kernel

Suse

References · 486

• https://nvd.nist.gov/vuln/detail/CVE-2023-52622 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47160 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52510 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47159 · Security Note
• https://bdu.fstec.ru/vul/2025-00799 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47061 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52522 · Security Note
• https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-52515 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47180 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52595 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47077 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-47145 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52530 · Security Note