CVE-2025-38177 | Teknoloji dünyasından en güncel haberleri ve güvenlikle ilgili gelişmeleri takip edin.

In the Linux kernel, the following vulnerability has been resolved: sch_hfsc: make hfsc_qlen_notify() idempotent hfsc_qlen_notify() is not idempotent either a…
Medium CVSS: 5.5

CVE-2025-38177

In the Linux kernel, the following vulnerability has been resolved:

sch_hfsc: make hfsc_qlen_notify() idempotent

hfsc_qlen_notify() is not idempotent either and not friendly
to its callers, like fq_codel_dequeue(). Let's make it idempotent
to ease qdisc_tree_reduce_backlog() callers' life:

1. update_vf() decreases cl->cl_nactive, so we can check whether it is
non-zero before calling it.

2. eltree_remove() always removes RB node cl->el_node, but we can use
RB_EMPTY_NODE() + RB_CLEAR_NODE() to make it safe.
Vendor
Linux
Product
Linux Kernel
CWE
CWE-459
Yayın Tarihi
2025-07-04 13:15:24
Güncelleme
2025-12-18 16:48:54
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-

Kategoriler

CWE-459 Linux Kernel MEDIUM Linux 2025

Referanslar

https://git.kernel.org/stable/c/0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87 https://git.kernel.org/stable/c/51eb3b65544c9efd6a1026889ee5fb5aa62da3bb https://git.kernel.org/stable/c/72c61ffbeeb8c50f6d4d70c65d3283aa1bac57a7 https://git.kernel.org/stable/c/9030a91235ae4845ec71902c3e0cecfc9ed1f2df https://git.kernel.org/stable/c/9a5fd5c2f4d4afdd5e405083ee53e0789ce76956 https://git.kernel.org/stable/c/a5efc95a33bd4fcb879250852828cc58c7862970 https://git.kernel.org/stable/c/c1175c4ad01dbc9c979d099861fa90a754f72059 https://git.kernel.org/stable/c/d06476714d2819b550e0cc39222347e2c8941c9d https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html