CVE-2021-37159

NameCVE-2021-37159
Descriptionhso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2785-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1vulnerable
stretch (security)4.9.272-2vulnerable
buster4.19.208-1fixed
buster (security)4.19.194-3vulnerable
bullseye5.10.70-1fixed
bullseye (security)5.10.46-5vulnerable
bookworm5.14.9-2fixed
sid5.14.12-1fixed
linux-4.19 (PTS)stretch (security)4.19.208-1~deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.208-1
linuxsourcebullseye5.10.70-1
linuxsource(unstable)5.14.6-1
linux-4.19sourcestretch4.19.208-1~deb9u1DLA-2785-1

Notes

https://www.spinics.net/lists/linux-usb/msg202228.html

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