Medium severity6.4NVD Advisory· Published Jul 21, 2021· Updated Jun 17, 2026

CVE-2021-37159

Description

hso_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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

243

Linux/Linux kerneldescription
osv-coords236 versions
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pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.3 pkg:rpm/suse/kernel-ppc64&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS pkg:rpm/suse/kernel-pae&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3 pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.2 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP3 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.3 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.2 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-preempt&distro=openSUSE%20Leap%2015.3 pkg:rpm/opensuse/kernel-vanilla&distro=openSUSE%20Leap%2015.3
< 5.3.18-lp152.106.1+ 235 more
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1.18.21.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 1-7.3.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1.18.21.1
- (no CPE)range: < 4.12.14-10.65.1
- (no CPE)range: < 4.12.14-10.65.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 1-8.7.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 5.3.18-18.75.1
- (no CPE)range: < 5.3.18-18.75.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1.9.44.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-4.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 1-6.3.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-62.2
- (no CPE)range: < 5.3.18-62.3
- (no CPE)range: < 5.3.18-62.2
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.18.0-372.9.1.el8
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 1-5.3.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-62.3
- (no CPE)range: < 5.3.18-62.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 1-8.3.1
- (no CPE)range: < 4.12.14-122.250.1
- (no CPE)range: < 4.12.14-10.65.1
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.121-92.161.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-24.96.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 5.3.18-24.96.1.9.44.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-10.65.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 5.3.18-18.75.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.2
- (no CPE)range: < 1-3.3.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 4.12.14-16.80.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.4.180-94.150.1
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 4.12.14-95.83.2
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 3.0.101-108.132.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1.18.21.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 4.12.14-122.98.1
- (no CPE)range: < 5.3.18-lp152.106.1.lp152.8.52.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 5.3.18-38.31.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-197.102.2
- (no CPE)range: < 4.12.14-197.102.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 4.12.14-150.78.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-lp152.106.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 5.3.18-59.34.1
- (no CPE)range: < 4.12.14-197.102.2
Linux/Kernel2 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <=5.13.4
- (no CPE)range: <=5.13.4
Debian/linux
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Oracle Corporation/Communications Cloud Native Core Binding Support Function
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
Oracle Corporation/Communications Cloud Native Core Network Exposure Function
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
Oracle Corporation/Communications Cloud Native Core Policy
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

www.oracle.com/security-alerts/cpujul2022.htmlnvdPatchThird Party Advisory
www.spinics.net/lists/linux-usb/msg202228.htmlnvdMailing ListPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlnvdMailing ListThird Party Advisory
security.netapp.com/advisory/ntap-20210819-0003/nvdThird Party Advisory
bugzilla.suse.com/show_bug.cginvd
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvd
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvd

News mentions

No linked articles in our index yet.

cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000