CVE - CVE-2025-38637

CVE-ID
CVE-2025-38637	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: net_sched: skbprio: Remove overly strict queue assertions In the current implementation, skbprio enqueue/dequeue contains an assertion that fails under certain conditions when SKBPRIO is used as a child qdisc under TBF with specific parameters. The failure occurs because TBF sometimes peeks at packets in the child qdisc without actually dequeuing them when tokens are unavailable. This peek operation creates a discrepancy between the parent and child qdisc queue length counters. When TBF later receives a high-priority packet, SKBPRIO's queue length may show a different value than what's reflected in its internal priority queue tracking, triggering the assertion. The fix removes this overly strict assertions in SKBPRIO, they are not necessary at all.
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/034b293bf17c124fec0f0e663f81203b00aa7a50 URL:https://git.kernel.org/stable/c/034b293bf17c124fec0f0e663f81203b00aa7a50 MISC:https://git.kernel.org/stable/c/1284733bab736e598341f1d3f3b94e2a322864a8 URL:https://git.kernel.org/stable/c/1284733bab736e598341f1d3f3b94e2a322864a8 MISC:https://git.kernel.org/stable/c/1dcc144c322a8d526b791135604c0663f1af9d85 URL:https://git.kernel.org/stable/c/1dcc144c322a8d526b791135604c0663f1af9d85 MISC:https://git.kernel.org/stable/c/2286770b07cb5268c03d11274b8efd43dff0d380 URL:https://git.kernel.org/stable/c/2286770b07cb5268c03d11274b8efd43dff0d380 MISC:https://git.kernel.org/stable/c/2f35b7673a3aa3d09b3eb05811669622ebaa98ca URL:https://git.kernel.org/stable/c/2f35b7673a3aa3d09b3eb05811669622ebaa98ca MISC:https://git.kernel.org/stable/c/32ee79682315e6d3c99947b3f38b078a09a66919 URL:https://git.kernel.org/stable/c/32ee79682315e6d3c99947b3f38b078a09a66919 MISC:https://git.kernel.org/stable/c/7abc8318ce0712182bf0783dcfdd9a6a8331160e URL:https://git.kernel.org/stable/c/7abc8318ce0712182bf0783dcfdd9a6a8331160e MISC:https://git.kernel.org/stable/c/864ca690ff135078d374bd565b9872f161c614bc URL:https://git.kernel.org/stable/c/864ca690ff135078d374bd565b9872f161c614bc MISC:https://git.kernel.org/stable/c/ce8fe975fd99b49c29c42e50f2441ba53112b2e8 URL:https://git.kernel.org/stable/c/ce8fe975fd99b49c29c42e50f2441ba53112b2e8
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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