An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be discarded by later processing, resulting in the caller assuming successful mapping, and hence subsequent operations trying to access space that wasn't mapped. In another case, internal state would be insufficiently updated, preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.
References
Configurations
History
25 Mar 2024, 01:15
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04 Jan 2022, 16:38
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References | (MLIST) https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html - Mailing List, Third Party Advisory |
Information
Published : 2021-02-17 01:15
Updated : 2024-03-25 01:15
NVD link : CVE-2021-26930
Mitre link : CVE-2021-26930
CVE.ORG link : CVE-2021-26930
JSON object : View
Products Affected
debian
- debian_linux
fedoraproject
- fedora
linux
- linux_kernel
CWE