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.
| Reporter | Title | Published | Views | Family All 311 |
|---|---|---|---|---|
 | CVE-2021-26931 | 17 Feb 202102:15 | – | attackerkb |
 | Amazon Linux 2 : kernel (ALAS-2021-1616) | 19 Mar 202100:00 | – | nessus |
| Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-001) | 2 May 202200:00 | – | nessus |
| Amazon Linux AMI : kernel (ALAS-2021-1487) | 20 Mar 202100:00 | – | nessus |
| Debian DLA-2586-1 : linux security update | 10 Mar 202100:00 | – | nessus |
| Debian DLA-2610-1 : linux-4.19 security update | 31 Mar 202100:00 | – | nessus |
| EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1844) | 15 Jun 202200:00 | – | nessus |
| EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2022-2181) | 29 Jul 202200:00 | – | nessus |
| Fedora 33 : kernel (2021-7143aca8cb) | 1 Mar 202100:00 | – | nessus |
| Fedora 32 : kernel (2021-8d45d297c6) | 1 Mar 202100:00 | – | nessus |
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25 Feb 2021 08:00Current
7.7High risk
Vulners AI Score7.7
CVSS 21.9
CVSS 3.15.5
EPSS0.00544