Medium severity5.5NVD Advisory· Published Mar 25, 2024· Updated Jun 17, 2026

CVE-2021-47171

Description

In the Linux kernel, the following vulnerability has been resolved:

net: usb: fix memory leak in smsc75xx_bind

Syzbot reported memory leak in smsc75xx_bind(). The problem was is non-freed memory in case of errors after memory allocation.

backtrace: [] kmalloc include/linux/slab.h:556 [inline] [] kzalloc include/linux/slab.h:686 [inline] [] smsc75xx_bind+0x7a/0x334 drivers/net/usb/smsc75xx.c:1460 [] usbnet_probe+0x3b6/0xc30 drivers/net/usb/usbnet.c:1728

AI Insight

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

Affected products

118

Linux/Kernel3 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.34,<4.4.271
- (no CPE)
- (no CPE)range: 2.6.34
osv-coords115 versions
pkg:rpm/almalinux/bpftool pkg:rpm/almalinux/kernel pkg:rpm/almalinux/kernel-abi-stablelists pkg:rpm/almalinux/kernel-core pkg:rpm/almalinux/kernel-cross-headers pkg:rpm/almalinux/kernel-debug pkg:rpm/almalinux/kernel-debug-core pkg:rpm/almalinux/kernel-debug-devel pkg:rpm/almalinux/kernel-debug-modules pkg:rpm/almalinux/kernel-debug-modules-extra pkg:rpm/almalinux/kernel-devel pkg:rpm/almalinux/kernel-doc pkg:rpm/almalinux/kernel-headers pkg:rpm/almalinux/kernel-modules pkg:rpm/almalinux/kernel-modules-extra pkg:rpm/almalinux/kernel-tools pkg:rpm/almalinux/kernel-tools-libs pkg:rpm/almalinux/kernel-tools-libs-devel pkg:rpm/almalinux/kernel-zfcpdump pkg:rpm/almalinux/kernel-zfcpdump-core pkg:rpm/almalinux/kernel-zfcpdump-devel pkg:rpm/almalinux/kernel-zfcpdump-modules pkg:rpm/almalinux/kernel-zfcpdump-modules-extra pkg:rpm/almalinux/perf pkg:rpm/almalinux/python3-perf pkg:rpm/suse/kernel-64kb&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-docs&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP2_Update_47&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP2 pkg:rpm/suse/kernel-livepatch-SLE15-SP3_Update_43&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP3 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5 pkg:rpm/suse/kernel-preempt&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-preempt&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Enterprise%20Storage%207.1 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_56&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5 pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_57&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.18.0-553.5.1.el8_10+ 114 more
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 4.18.0-553.5.1.el8_10
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150200.24.188.1.150200.9.95.3
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150200.24.188.1.150200.9.95.3
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150200.24.188.1.150200.9.95.3
- (no CPE)range: < 5.3.18-150300.59.158.1.150300.18.92.5
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 1-150200.5.3.3
- (no CPE)range: < 1-150300.7.3.5
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150300.166.1
- (no CPE)range: < 5.3.18-150300.166.1
- (no CPE)range: < 4.12.14-10.182.1
- (no CPE)range: < 4.12.14-10.182.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 5.3.18-150300.166.1
- (no CPE)range: < 5.3.18-150300.166.1
- (no CPE)range: < 4.12.14-10.182.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-122.216.1
- (no CPE)range: < 5.3.18-150200.24.188.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 4.12.14-16.182.1
- (no CPE)range: < 4.12.14-10.182.1
- (no CPE)range: < 5.3.18-150300.59.158.1
- (no CPE)range: < 1-8.3.1
- (no CPE)range: < 1-8.3.1

cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2021-47171

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions