01 Record

CVE-2025-38468

net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.16% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 5.9% of scored records. A rank, not a probability.
NVD base score: 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-07-28 11:12Z1 YR AGO

Last updated

2026-07-14 12:42Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase
CWE-754Improper Check for Unusual or Exceptional ConditionsClass

Data version

5.2

Document digest

ab707b71475d6ce0a49b2cc30f35f45fd545fa9b63afe3418f5e06a677d5d442

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < fed3570e548a6c9f95c5f4c9e1a7afc1679fd90d, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 5c0506cd1b1a3b145bda2612bbf7fe78d186c355, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 850226aef8d28a00cf966ef26d2f8f2bff344535, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 890a5d423ef0a7bd13447ceaffad21189f557301, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 7ff2d83ecf2619060f30ecf9fad4f2a700fca344, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < e5c480dc62a3025b8428d4818e722da30ad6804f, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 3691f84269a23f7edd263e9b6edbc27b7ae332f4, 512bb43eb5422ee69a1be05ea0d89dc074fac9a2 to < 0e1d5d9b5c5966e2e42e298670808590db5ed628, 2.6.29—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/fed3570e548a6c9f95c5f4c9e1a7afc1679fd90d
git.kernel.orghttps://git.kernel.org/stable/c/5c0506cd1b1a3b145bda2612bbf7fe78d186c355
git.kernel.orghttps://git.kernel.org/stable/c/850226aef8d28a00cf966ef26d2f8f2bff344535
git.kernel.orghttps://git.kernel.org/stable/c/890a5d423ef0a7bd13447ceaffad21189f557301
git.kernel.orghttps://git.kernel.org/stable/c/7ff2d83ecf2619060f30ecf9fad4f2a700fca344
git.kernel.orghttps://git.kernel.org/stable/c/e5c480dc62a3025b8428d4818e722da30ad6804f
git.kernel.orghttps://git.kernel.org/stable/c/3691f84269a23f7edd263e9b6edbc27b7ae332f4
git.kernel.orghttps://git.kernel.org/stable/c/0e1d5d9b5c5966e2e42e298670808590db5ed628
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html

01 Record index

CVE-2025-38468

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-38468

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References