CVE-2021-47143

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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

net/smc: remove device from smcd_dev_list after failed device_add()

If the device_add() for a smcd_dev fails, there's no cleanup step that rolls back the earlier list_add(). The device subsequently gets freed, and we end up with a corrupted list.

Add some error handling that removes the device from the list.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-459

Affected software

VendorProductVersions
LinuxLinux>= c6ba7c9ba43de1b57e9a53946e7ff988554c84ed, < 8b2cdc004d21a7255f219706dca64411108f7897; >= c6ba7c9ba43de1b57e9a53946e7ff988554c84ed, < 40588782f1016c655ae1d302892f61d35af96842; >= c6ba7c9ba43de1b57e9a53946e7ff988554c84ed, < 444d7be9532dcfda8e0385226c862fd7e986f607
LinuxLinux4.19

References

Timeline

Published
Mar 25, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2021

CVE-2021-471455.5In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUG_ON in link_to_fixup_dir While doing error injection CVE-2021-471465.5In the Linux kernel, the following vulnerability has been resolved: mld: fix panic in mld_newpack() mld_newpack() doesn't allow to allocatCVE-2021-471476.2In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix a resource leak in an error handling path If an error ocCVE-2021-471487.8In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix a buffer overflow in otx2_set_rxfh_context() This fuCVE-2021-471495.5In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), ifCVE-2021-471505.5In the Linux kernel, the following vulnerability has been resolved: net: fec: fix the potential memory leak in fec_enet_init() If the memoCVE-2021-471515.5In the Linux kernel, the following vulnerability has been resolved: interconnect: qcom: bcm-voter: add a missing of_node_put() Add a missiCVE-2021-471525.5In the Linux kernel, the following vulnerability has been resolved: mptcp: fix data stream corruption Maxim reported several issues when fCVE-2021-471537.1In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Don't generate an interrupt on bus reset Now that the i2c-iCVE-2021-471546.3The Net::CIDR::Lite module before 0.22 for Perl does not properly consider extraneous zero characters at the beginning of an IP address striCVE-2021-471559.1The Net::IPV4Addr module 0.10 for Perl does not properly consider extraneous zero characters in an IP address string, which (in some situatiCVE-2021-471566.5The Net::IPAddress::Util module before 5.000 for Perl does not properly consider extraneous zero characters in an IP address string, which (
CVE-2021-47143: Medium severity, CVSS 5.5 | Vulnix