CVE - CVE-2025-38177

CVE-ID
CVE-2025-38177	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87 URL:https://git.kernel.org/stable/c/0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87 MISC:https://git.kernel.org/stable/c/51eb3b65544c9efd6a1026889ee5fb5aa62da3bb URL:https://git.kernel.org/stable/c/51eb3b65544c9efd6a1026889ee5fb5aa62da3bb MISC:https://git.kernel.org/stable/c/9030a91235ae4845ec71902c3e0cecfc9ed1f2df URL:https://git.kernel.org/stable/c/9030a91235ae4845ec71902c3e0cecfc9ed1f2df MISC:https://git.kernel.org/stable/c/c1175c4ad01dbc9c979d099861fa90a754f72059 URL:https://git.kernel.org/stable/c/c1175c4ad01dbc9c979d099861fa90a754f72059 MISC:https://git.kernel.org/stable/c/d06476714d2819b550e0cc39222347e2c8941c9d URL:https://git.kernel.org/stable/c/d06476714d2819b550e0cc39222347e2c8941c9d
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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