CVE-2021-26931

An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isn't correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.

Link	Resource
http://xenbits.xen.org/xsa/advisory-362.html	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2XQR52ICKRK3GC4HDWLMWF2U55YGAR63/	Mailing List Patch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GWQWPWYZRXVFJI5M3VCM72X27IB7CKOB/	Mailing List Patch
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210326-0001/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

---

Published : 2021-02-17 02:15

Updated : 2022-06-04 02:02

---

NVD link : CVE-2021-26931

Mitre link : CVE-2021-26931

No products.

CWE-770