CVE-2021-47565

HIGH
Published May 24, 2024 Modified Sep 18, 2025 CWE-416 CWE-476

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.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free
CWE-476 CWE-476

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/0d4b29eaadc1f59cec0c7e85eae77d08fcca9824 https://git.kernel.org/stable/c/0ee4ba13e09c9d9c1cb6abb59da8295d9952328b https://git.kernel.org/stable/c/2bf9c5a5039c8f4b037236aed505e6a25c1d5f7b https://git.kernel.org/stable/c/58ef2c7a6de13721865d84b80eecf56d6cba0937 https://git.kernel.org/stable/c/5d4d50b1f159a5ebab7617f47121b4370aa58afe https://git.kernel.org/stable/c/7e324f734a914957b8cc3ff4b4c9f0409558adb5 https://git.kernel.org/stable/c/8485649a7655e791a6e4e9f15b4d30fdae937184 https://git.kernel.org/stable/c/dd035ca0e7a142870a970d46b1d19276cfe2bc8c https://git.kernel.org/stable/c/0d4b29eaadc1f59cec0c7e85eae77d08fcca9824 https://git.kernel.org/stable/c/0ee4ba13e09c9d9c1cb6abb59da8295d9952328b https://git.kernel.org/stable/c/2bf9c5a5039c8f4b037236aed505e6a25c1d5f7b https://git.kernel.org/stable/c/58ef2c7a6de13721865d84b80eecf56d6cba0937 https://git.kernel.org/stable/c/5d4d50b1f159a5ebab7617f47121b4370aa58afe https://git.kernel.org/stable/c/7e324f734a914957b8cc3ff4b4c9f0409558adb5 https://git.kernel.org/stable/c/8485649a7655e791a6e4e9f15b4d30fdae937184 https://git.kernel.org/stable/c/dd035ca0e7a142870a970d46b1d19276cfe2bc8c

Frequently Asked Questions

What is CVE-2021-47565? +
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. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2021-47565? +
CVE-2021-47565 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2021-47565? +
CVE-2021-47565 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-47565? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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