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kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit

🗓️ 03 Jun 2026 15:25:47Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 9 Views

The cake enqueue now returns NET_XMIT_CN when past the buffer limit to signal congestion.

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Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:19569)
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Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2026:8921)
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Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2026:9264)
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Red Hat Enterprise Linux9.2x86_64kernel-rt5.14.0-284.174.1.rt14.459.el9_2kernel-rt-5.14.0-284.174.1.rt14.459.el9_2.x86_64.rpm
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Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-devel5.14.0-284.174.1.rt14.459.el9_2kernel-rt-debug-devel-5.14.0-284.174.1.rt14.459.el9_2.x86_64.rpm
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Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules5.14.0-284.174.1.rt14.459.el9_2kernel-rt-debug-modules-5.14.0-284.174.1.rt14.459.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules-core5.14.0-284.174.1.rt14.459.el9_2kernel-rt-debug-modules-core-5.14.0-284.174.1.rt14.459.el9_2.x86_64.rpm
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17 Jul 2026 16:41Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.8
EPSS0.00168
SSVC
CWE-390
cake enqueuebuffer limitcongestion signalinghtb activation warninglinux kernelnetwork scheduling
9