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kernel: ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()

🗓️ 10 May 2022 13:43:14Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Kernel fix for null pointer dereference in ethtool_set_coalesce during ioctl when coalesce callbacks are unchecked.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Vulnerability in linux (Kernel) affects IBM Integrated Analytics System.
2 Jul 202512:19
–ibm
AstraLinux		Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
–astralinux
BDU FSTEC		The vulnerability of the ethtool_set_coalesce() function in the net/ethtool/ioctl.c module of the Linux kernel’s networking functions allows a hacker to cause a service failure.
14 Apr 202500:00
–bdu_fstec
CNNVD		Linux kernel 安全漏洞
24 May 202400:00
–cnnvd
CVE		CVE-2021-47556
24 May 202415:09
–cve
Cvelist		CVE-2021-47556 ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()
24 May 202415:09
–cvelist
Debian CVE		CVE-2021-47556
24 May 202415:09
–debiancve
NVD		CVE-2021-47556
24 May 202415:15
–nvd
OSV		DEBIAN-CVE-2021-47556
24 May 202415:15
–osv
OSV		OESA-2024-2080 kernel security update
30 Aug 202411:09
–osv
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64kernel-rt4.18.0-372.9.1.rt7.166.el8kernel-rt-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-core4.18.0-372.9.1.rt7.166.el8kernel-rt-core-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-core4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-core-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-debuginfo4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-debuginfo-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-devel4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-devel-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-kvm4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-kvm-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-modules-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules-extra4.18.0-372.9.1.rt7.166.el8kernel-rt-debug-modules-extra-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debuginfo4.18.0-372.9.1.rt7.166.el8kernel-rt-debuginfo-4.18.0-372.9.1.rt7.166.el8.x86_64.rpm
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28 Jun 2026 12:36Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.15.5
EPSS0.00183
SSVC
CWE-476
kernel ethtoolioctl handlingcoalesce settingsnull pointercallbacks unchecked
6