vulnerability

Ubuntu: (Multiple Advisories) (CVE-2021-28964): Linux kernel (OEM) vulnerabilities

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Severity
2
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Published
Mar 22, 2021
Added
May 12, 2021
Modified
Mar 22, 2023

Description

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

Solution(s)

ubuntu-upgrade-linux-image-4-15-0-1072-oracleubuntu-upgrade-linux-image-4-15-0-1086-raspi2ubuntu-upgrade-linux-image-4-15-0-1092-kvmubuntu-upgrade-linux-image-4-15-0-1100-gcpubuntu-upgrade-linux-image-4-15-0-1103-awsubuntu-upgrade-linux-image-4-15-0-1103-snapdragonubuntu-upgrade-linux-image-4-15-0-1115-azureubuntu-upgrade-linux-image-4-15-0-144-genericubuntu-upgrade-linux-image-4-15-0-144-generic-lpaeubuntu-upgrade-linux-image-4-15-0-144-lowlatencyubuntu-upgrade-linux-image-4-4-0-1103-awsubuntu-upgrade-linux-image-4-4-0-1104-kvmubuntu-upgrade-linux-image-4-4-0-1139-awsubuntu-upgrade-linux-image-4-4-0-223-genericubuntu-upgrade-linux-image-4-4-0-223-lowlatencyubuntu-upgrade-linux-image-5-10-0-1026-oemubuntu-upgrade-linux-image-5-4-0-1016-gkeopubuntu-upgrade-linux-image-5-4-0-1036-raspiubuntu-upgrade-linux-image-5-4-0-1040-kvmubuntu-upgrade-linux-image-5-4-0-1044-gcpubuntu-upgrade-linux-image-5-4-0-1044-gkeubuntu-upgrade-linux-image-5-4-0-1046-oracleubuntu-upgrade-linux-image-5-4-0-1048-azureubuntu-upgrade-linux-image-5-4-0-1049-awsubuntu-upgrade-linux-image-5-4-0-74-genericubuntu-upgrade-linux-image-5-4-0-74-generic-lpaeubuntu-upgrade-linux-image-5-4-0-74-lowlatencyubuntu-upgrade-linux-image-5-8-0-1026-raspiubuntu-upgrade-linux-image-5-8-0-1026-raspi-nolpaeubuntu-upgrade-linux-image-5-8-0-1028-kvmubuntu-upgrade-linux-image-5-8-0-1031-oracleubuntu-upgrade-linux-image-5-8-0-1032-gcpubuntu-upgrade-linux-image-5-8-0-1033-azureubuntu-upgrade-linux-image-5-8-0-1035-awsubuntu-upgrade-linux-image-5-8-0-55-genericubuntu-upgrade-linux-image-5-8-0-55-generic-64kubuntu-upgrade-linux-image-5-8-0-55-generic-lpaeubuntu-upgrade-linux-image-5-8-0-55-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-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-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-20-04bubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-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

References

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