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Ubuntu: USN-5466-1 (CVE-2021-4149): Linux kernel vulnerabilities

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Ubuntu: USN-5466-1 (CVE-2021-4149): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
01/14/2022
Created
06/10/2022
Added
06/08/2022
Modified
06/14/2022

Description

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1098-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1114-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1119-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1127-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1132-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1133-aws
  • ubuntu-upgrade-linux-image-4-15-0-1133-aws-hwe
  • ubuntu-upgrade-linux-image-4-15-0-1142-azure
  • ubuntu-upgrade-linux-image-4-15-0-184-generic
  • ubuntu-upgrade-linux-image-4-15-0-184-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-184-lowlatency
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04

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