Description

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

References

http://xenbits.xen.org/xsa/advisory-367.html

http://www.openwall.com/lists/oss-security/2021/03/05/1

https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html

https://security.netapp.com/advisory/ntap-20210409-0001/

Details

Risk Information

CVSS v2

CVSS v3