CVE-2021-4149

NameCVE-2021-4149
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3065-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.226-1vulnerable
bookworm6.1.106-3fixed
bookworm (security)6.1.112-1fixed
trixie6.11.4-1fixed
sid6.11.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcestretch4.9.320-2DLA-3065-1
linuxsourcebuster4.19.235-1
linuxsource(unstable)5.14.16-1

Notes

https://git.kernel.org/linus/19ea40dddf1833db868533958ca066f368862211 (5.15-rc6)

Search for package or bug name: Reporting problems