CVE-2025-38108

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Source
https://cve.org/CVERecord?id=CVE-2025-38108
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38108.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38108
Downstream
Related
Published
2025-07-03T08:35:18.523Z
Modified
2026-05-07T04:17:04.888594Z
Summary
net_sched: red: fix a race in __red_change()
Details

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

net_sched: red: fix a race in _redchange()

Gerrard Tai reported a race condition in RED, whenever SFQ perturb timer fires at the wrong time.

The race is as follows:

CPU 0 CPU 1 | | [5]: lock root | [6]: rehash | [7]: qdisctreereduce_backlog() | This can be abused to underflow a parent's qlen.

Calling qdiscpurgequeue() instead of qdisctreeflush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38108.json",
    "cna_assigner": "Linux"
}
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
0c8d13ac96070000da33f394f45e9c19638483c5
Fixed
2790c4ec481be45a80948d059cd7c9a06bc37493
Fixed
a1bf6a4e9264a685b0e642994031f9c5aad72414
Fixed
110a47efcf23438ff8d31dbd9c854fae2a48bf98
Fixed
f569984417a4e12c67366e69bdcb752970de921d
Fixed
2a71924ca4af59ffc00f0444732b6cd54b153d0e
Fixed
4b755305b2b0618e857fdadb499365b5f2e478d1
Fixed
444ad445df5496a785705019268a8a84b84484bb
Fixed
85a3e0ede38450ea3053b8c45d28cf55208409b8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38108.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.0.0
Fixed
5.4.295
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.239
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.186
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.142
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.94
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.34
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.15.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38108.json"