cbcvebase.
CVE-2025-38637
published 2025-04-18

CVE-2025-38637: In the Linux kernel, the following vulnerability has been resolved: net_sched: skbprio: Remove overly strict queue assertions In the current implementation…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.27%
19.7th percentile
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.

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
debianlinux-6.1< linux 6.1.135-1 (bookworm)linux 6.1.135-1 (bookworm)
linuxlinux
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 7abc8318ce0712182bf0783dcfdd9a6a8331160e7abc8318ce0712182bf0783dcfdd9a6a8331160e
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 1284733bab736e598341f1d3f3b94e2a322864a81284733bab736e598341f1d3f3b94e2a322864a8
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 32ee79682315e6d3c99947b3f38b078a09a6691932ee79682315e6d3c99947b3f38b078a09a66919
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 1dcc144c322a8d526b791135604c0663f1af9d851dcc144c322a8d526b791135604c0663f1af9d85
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 864ca690ff135078d374bd565b9872f161c614bc864ca690ff135078d374bd565b9872f161c614bc
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 2f35b7673a3aa3d09b3eb05811669622ebaa98ca2f35b7673a3aa3d09b3eb05811669622ebaa98ca
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 2286770b07cb5268c03d11274b8efd43dff0d3802286770b07cb5268c03d11274b8efd43dff0d380
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < 034b293bf17c124fec0f0e663f81203b00aa7a50034b293bf17c124fec0f0e663f81203b00aa7a50
linuxlinux>= aea5f654e6b78a0c976f7a25950155932c77a53f < ce8fe975fd99b49c29c42e50f2441ba53112b2e8ce8fe975fd99b49c29c42e50f2441ba53112b2e8
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.135-16.1.135-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 5.15.0-142.1525.15.0-142.152
linuxlinux_kernel>= 0 < 6.8.0-86.876.8.0-86.87
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 0 < 5.4.0-218.2385.4.0-218.238
linuxlinux_kernel>= 4.19 < 5.4.2925.4.292
linuxlinux_kernel>= 5.11 < 5.15.1805.15.180
linuxlinux_kernel>= 5.16 < 6.1.1346.1.134
linuxlinux_kernel>= 5.5 < 5.10.2365.10.236

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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