CVE-2021-26931

An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen

published February 17, 2021

CVSS
—
EPSS
1%
Percentile
45.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00556 · 45.6th percentile
Published
2021-02-17T00:00Z
EPSS history
Timeline
  • 17 FEB 00:00Z
    An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen
    cvelistv5