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) | 2021-02-17 | 2021-04-14 | 2023-03-22 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Published
2021-02-17
Added
2021-04-14
Modified
2023-03-22
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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