CVE-2025-38177

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2025-38177
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38177.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38177
Downstream
Related
Published
2025-07-04T12:47:09.127Z
Modified
2025-11-26T19:34:05.703239Z
Summary
sch_hfsc: make hfsc_qlen_notify() idempotent
Details

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

schhfsc: make hfscqlen_notify() idempotent

hfscqlennotify() is not idempotent either and not friendly to its callers, like fqcodeldequeue(). Let's make it idempotent to ease qdisctreereduce_backlog() callers' life:

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

  2. eltreeremove() always removes RB node cl->elnode, but we can use RBEMPTYNODE() + RBCLEARNODE() to make it safe.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/9c3874e559580d6c6ec8d449812ac11277724770/cves/2025/38xxx/CVE-2025-38177.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
9a5fd5c2f4d4afdd5e405083ee53e0789ce76956
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
72c61ffbeeb8c50f6d4d70c65d3283aa1bac57a7
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
a5efc95a33bd4fcb879250852828cc58c7862970
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
9030a91235ae4845ec71902c3e0cecfc9ed1f2df
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
d06476714d2819b550e0cc39222347e2c8941c9d
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
c1175c4ad01dbc9c979d099861fa90a754f72059
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed
51eb3b65544c9efd6a1026889ee5fb5aa62da3bb

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.4.297
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.241
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.190
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.138
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.90
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.28
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.14.6