Vulnerabilities
Vulnerable Software

Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 35.9%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 1.9
References
Products affected by CVE-2021-26931


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