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kernel: net: hsr: avoid possible NULL deref in skb_clone()

🗓️ 07 Nov 2023 09:03:12Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Linux kernel HSR flaw: NULL from create_stripped_skb_hsr() can cause a NULL dereference in skb_clone(), risking crash.

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Tenable Nessus		Linux Distros Unpatched Vulnerability : CVE-2022-50817
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Amazon		Important: kernel
8 Dec 202200:00
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Amazon		Important: kernel
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AstraLinux		Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
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BDU FSTEC		The vulnerability of the hsr_get_untagged_frame() function in the net/hsr/hsr_forward.c module, a Linux kernel networking function implementation, allows a hacker to cause a service failure.
2 Mar 202600:00
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.3aarch64bpftool7.2.0-362.8.1.el9_3bpftool-7.2.0-362.8.1.el9_3.aarch64.rpm
Red Hat Enterprise Linux9.3ppc64lebpftool7.2.0-362.8.1.el9_3bpftool-7.2.0-362.8.1.el9_3.ppc64le.rpm
Red Hat Enterprise Linux9.3s390xbpftool7.2.0-362.8.1.el9_3bpftool-7.2.0-362.8.1.el9_3.s390x.rpm
Red Hat Enterprise Linux9.3x86_64bpftool7.2.0-362.8.1.el9_3bpftool-7.2.0-362.8.1.el9_3.x86_64.rpm
Red Hat Enterprise Linux9.3aarch64bpftool-debuginfo7.2.0-362.8.1.el9_3bpftool-debuginfo-7.2.0-362.8.1.el9_3.aarch64.rpm
Red Hat Enterprise Linux9.3ppc64lebpftool-debuginfo7.2.0-362.8.1.el9_3bpftool-debuginfo-7.2.0-362.8.1.el9_3.ppc64le.rpm
Red Hat Enterprise Linux9.3s390xbpftool-debuginfo7.2.0-362.8.1.el9_3bpftool-debuginfo-7.2.0-362.8.1.el9_3.s390x.rpm
Red Hat Enterprise Linux9.3x86_64bpftool-debuginfo7.2.0-362.8.1.el9_3bpftool-debuginfo-7.2.0-362.8.1.el9_3.x86_64.rpm
Red Hat Enterprise Linux9.3aarch64kernel5.14.0-362.8.1.el9_3kernel-5.14.0-362.8.1.el9_3.aarch64.rpm
Red Hat Enterprise Linux9.3ppc64lekernel5.14.0-362.8.1.el9_3kernel-5.14.0-362.8.1.el9_3.ppc64le.rpm
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21 Jul 2026 20:58Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.002
CWE-476
linux kernelhigh availabilityredundancynull pointerkernel crash
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