A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.
https://www.openwall.com/lists/oss-security/2021/02/04/5
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13
http://www.openwall.com/lists/oss-security/2021/02/05/6
https://security.netapp.com/advisory/ntap-20210312-0008/
Source: MITRE
Published: 2021-02-05
Updated: 2022-02-25
Type: CWE-269
Base Score: 6.9
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 7
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1
Severity: HIGH