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kernel: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change

🗓️ 09 Jul 2026 03:46:32Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

Kernel fix for race between ets_qdisc_dequeue and ets_qdisc_change to prevent Qdisc use-after-free.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2025-71066
13 Jan 202615:31
–attackerkb
AstraLinux		Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1
20 May 202605:53
–astralinux
BDU FSTEC		The vulnerability of the ets_qdisc_change() function in the net/sched/sch_ets.c module of the network/sched/sch_ets.c subsystem of the Linux operating system’s networking subsystem allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.
8 Jul 202600:00
–bdu_fstec
Circl		CVE-2025-71066
13 Jan 202618:01
–circl
CNNVD		Linux kernel 安全漏洞
13 Jan 202600:00
–cnnvd
CVE		CVE-2025-71066
13 Jan 202615:31
–cve
Cvelist		CVE-2025-71066 net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change
13 Jan 202615:31
–cvelist
Debian		[SECURITY] [DLA 4475-1] linux security update
11 Feb 202612:47
–debian
Debian		[SECURITY] [DLA 4476-1] linux-6.1 security update
11 Feb 202612:48
–debian
Debian		[SECURITY] [DSA 6126-1] linux security update
9 Feb 202618:21
–debian
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64kernel0:5.14.0-687.24.1.el9_8kernel-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9ppc64lekernel0:5.14.0-687.24.1.el9_8kernel-0:5.14.0-687.24.1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9s390xkernel0:5.14.0-687.24.1.el9_8kernel-0:5.14.0-687.24.1.el9_8.s390x.rpm
Red Hat Enterprise Linux9x86_64kernel0:5.14.0-687.24.1.el9_8kernel-0:5.14.0-687.24.1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k0:5.14.0-687.24.1.el9_8kernel-64k-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k-core0:5.14.0-687.24.1.el9_8kernel-64k-core-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k-debug0:5.14.0-687.24.1.el9_8kernel-64k-debug-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k-debug-core0:5.14.0-687.24.1.el9_8kernel-64k-debug-core-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k-debug-debuginfo0:5.14.0-687.24.1.el9_8kernel-64k-debug-debuginfo-0:5.14.0-687.24.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9aarch64kernel-64k-debug-devel0:5.14.0-687.24.1.el9_8kernel-64k-debug-devel-0:5.14.0-687.24.1.el9_8.aarch64.rpm
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09 Jul 2026 18:01Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.17.5
EPSS0.00151
SSVC
CWE-416
kernel raceuse after freequeue disciplinenetwork namespace
5