CVE-2025-21702 pfifo_tail_enqueue: Drop new packet when sch->limit == 0

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the pfifotailenqueue function not properly validating input when processing queues. An attacker exploiting...

PT-2025-6938

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the pfifo tail enqueue function in the Linux kernel. When sch-limit == 0 and pfifo tail enqueue is triggered on a scheduler with no packets, the function will n...

SUSE CVE-2021-47418

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...