CVE-2022-0646: Use After Free
A flaw use after free in the Linux kernel Management Component Transport Protocol (MCTP) subsystem was found in the way user triggers cancelworksync after the unregisternetdev during removing device. A local user could use this flaw to crash the system or escalate their privileges on the system. It is actual from Linux Kernel 5.17-rc1 (when mctp-serial.c introduced) till 5.17-rc5.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2022-0646?
CVE-2022-0646 is a vulnerability in the Linux kernel Management Component Transport Protocol (MCTP) subsystem that allows a local user to crash the system or escalate their privileges.
What is the severity of CVE-2022-0646?
The severity of CVE-2022-0646 is high with a CVSS score of 7.8.
Which systems are affected by CVE-2022-0646?
Linux kernel versions 5.17-rc1, 5.17-rc2, 5.17-rc3, 5.17-rc4, and 5.17-rc5, as well as Netapp Baseboard Management Controller firmware versions H410c, H300s, H500s, H700s, H300e, H500e, H700e, and H410s are affected by CVE-2022-0646.
How can CVE-2022-0646 be exploited?
CVE-2022-0646 can be exploited by a local user who triggers cancel_work_sync after the unregister_netdev during removing a device.
Where can I find more information about CVE-2022-0646?
You can find more information about CVE-2022-0646 at the following references: [Linux Kernel Mailing List](https://lore.kernel.org/all/20220211011552.1861886-1-jk%40codeconstruct.com.au) and [Netapp Security Advisory](https://security.netapp.com/advisory/ntap-20220318-0006/).