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kernel: tls: fix missing memory barrier in tls_init

🗓️ 03 Sep 2024 15:48:42Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 10 Views

TLS fix: add barrier using rcu assign pointer after ctx sk proto init to prevent NULL dereference

Related
Packages
Refs
ReporterTitlePublishedViews
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IBM Security Bulletins		Security Bulletin: Vulnerability in linux (Kernel) affects IBM Integrated Analytics System.
2 Jul 202512:19
–ibm
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2024-683)
6 Aug 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-065)
17 Aug 202400:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.15-2024-047)
17 Aug 202400:00
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Tenable Nessus		Alibaba Cloud Linux 3 : 0075: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2025:0075)
27 May 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2024:5101)
9 Aug 202400:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2024:5102)
9 Aug 202400:00
–nessus
Tenable Nessus		Debian dsa-5730 : affs-modules-5.10.0-29-4kc-malta-di - security update
16 Jul 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-2519)
9 Oct 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-2544)
9 Oct 202400:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.8aarch64bpftool4.18.0-477.70.1.el8_8bpftool-4.18.0-477.70.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lebpftool4.18.0-477.70.1.el8_8bpftool-4.18.0-477.70.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8s390xbpftool4.18.0-477.70.1.el8_8bpftool-4.18.0-477.70.1.el8_8.s390x.rpm
Red Hat Enterprise Linux8.8x86_64bpftool4.18.0-477.70.1.el8_8bpftool-4.18.0-477.70.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8aarch64bpftool-debuginfo4.18.0-477.70.1.el8_8bpftool-debuginfo-4.18.0-477.70.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lebpftool-debuginfo4.18.0-477.70.1.el8_8bpftool-debuginfo-4.18.0-477.70.1.el8_8.ppc64le.rpm
Red Hat Enterprise Linux8.8s390xbpftool-debuginfo4.18.0-477.70.1.el8_8bpftool-debuginfo-4.18.0-477.70.1.el8_8.s390x.rpm
Red Hat Enterprise Linux8.8x86_64bpftool-debuginfo4.18.0-477.70.1.el8_8bpftool-debuginfo-4.18.0-477.70.1.el8_8.x86_64.rpm
Red Hat Enterprise Linux8.8aarch64kernel4.18.0-477.70.1.el8_8kernel-4.18.0-477.70.1.el8_8.aarch64.rpm
Red Hat Enterprise Linux8.8ppc64lekernel4.18.0-477.70.1.el8_8kernel-4.18.0-477.70.1.el8_8.ppc64le.rpm
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6.5Medium risk
Vulners AI Score6.5
CVSS 3.15.5
EPSS0.00253
SSVC
CWE-402
kernel tlstls memory barrierrcu assign pointerctx sk protostore store reordernull dereference
10