vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-26931): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:M/Au:N/C:N/I:N/A:P) | Feb 17, 2021 | Apr 14, 2021 | Mar 22, 2023 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Published
Feb 17, 2021
Added
Apr 14, 2021
Modified
Mar 22, 2023
Description
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.
Solution(s)
ubuntu-upgrade-linux-image-4-15-0-1018-dell300xubuntu-upgrade-linux-image-4-15-0-1071-oracleubuntu-upgrade-linux-image-4-15-0-1085-raspi2ubuntu-upgrade-linux-image-4-15-0-1091-kvmubuntu-upgrade-linux-image-4-15-0-1099-gcpubuntu-upgrade-linux-image-4-15-0-1102-awsubuntu-upgrade-linux-image-4-15-0-1102-snapdragonubuntu-upgrade-linux-image-4-15-0-1114-azureubuntu-upgrade-linux-image-4-15-0-143-genericubuntu-upgrade-linux-image-4-15-0-143-generic-lpaeubuntu-upgrade-linux-image-4-15-0-143-lowlatencyubuntu-upgrade-linux-image-4-4-0-1090-awsubuntu-upgrade-linux-image-4-4-0-1091-kvmubuntu-upgrade-linux-image-4-4-0-1126-awsubuntu-upgrade-linux-image-4-4-0-1150-raspi2ubuntu-upgrade-linux-image-4-4-0-1154-snapdragonubuntu-upgrade-linux-image-4-4-0-208-genericubuntu-upgrade-linux-image-4-4-0-208-generic-lpaeubuntu-upgrade-linux-image-4-4-0-208-lowlatencyubuntu-upgrade-linux-image-4-4-0-208-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-208-powerpc-smpubuntu-upgrade-linux-image-4-4-0-208-powerpc64-embubuntu-upgrade-linux-image-4-4-0-208-powerpc64-smpubuntu-upgrade-linux-image-5-4-0-1013-gkeopubuntu-upgrade-linux-image-5-4-0-1033-raspiubuntu-upgrade-linux-image-5-4-0-1037-kvmubuntu-upgrade-linux-image-5-4-0-1040-gkeubuntu-upgrade-linux-image-5-4-0-1041-gcpubuntu-upgrade-linux-image-5-4-0-1042-oracleubuntu-upgrade-linux-image-5-4-0-1043-awsubuntu-upgrade-linux-image-5-4-0-1044-azureubuntu-upgrade-linux-image-5-4-0-71-genericubuntu-upgrade-linux-image-5-4-0-71-generic-lpaeubuntu-upgrade-linux-image-5-4-0-71-lowlatencyubuntu-upgrade-linux-image-5-8-0-1024-raspiubuntu-upgrade-linux-image-5-8-0-1024-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1027-kvmubuntu-upgrade-linux-image-5-8-0-1029-oracleubuntu-upgrade-linux-image-5-8-0-1031-gcpubuntu-upgrade-linux-image-5-8-0-1032-azureubuntu-upgrade-linux-image-5-8-0-1033-awsubuntu-upgrade-linux-image-5-8-0-53-genericubuntu-upgrade-linux-image-5-8-0-53-generic-64kubuntu-upgrade-linux-image-5-8-0-53-generic-lpaeubuntu-upgrade-linux-image-5-8-0-53-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-dell300xubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04ubuntu-upgrade-linux-image-virtual-lts-xenial
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