CVE-2021-47565

HIGH

Linux Kernel 3.8-4.4.294 - NULL Pointer Dereference in SCSI mpt3sas Drive Powercycle Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix kernel panic during drive powercycle test While looping over shost's sdev list it is possible that one of the drives is getting removed and its sas_target object is freed but its sdev object remains intact. Consequently, a kernel panic can occur while the driver is trying to access the sas_address field of sas_target object without also checking the sas_target object for NULL.

Scores

CVSS v3 7.8
EPSS 0.0023
EPSS Percentile 13.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416 CWE-476
Status published
Products (20)
Linux/Linux < 3.8
Linux/Linux 3.8
Linux/Linux 4.14.257 - 4.14.*
Linux/Linux 4.19.219 - 4.19.*
Linux/Linux 4.4.294 - 4.4.*
Linux/Linux 4.9.292 - 4.9.*
Linux/Linux 5.10.83 - 5.10.*
Linux/Linux 5.15.6 - 5.15.*
Linux/Linux 5.16
Linux/Linux 5.4.163 - 5.4.*
... and 10 more
Published May 24, 2024
Tracked Since Feb 18, 2026