CVE-2023-54085

Source
https://cve.org/CVERecord?id=CVE-2023-54085
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54085.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2023-54085
Downstream
Published
2025-12-24T13:06:16.161Z
Modified
2026-03-20T12:33:26.228614Z
Summary
mptcp: fix NULL pointer dereference on fastopen early fallback
Details

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

mptcp: fix NULL pointer dereference on fastopen early fallback

In case of early fallback to TCP, subflowsynrecv_sock() deletes the subflow context before returning the newly allocated sock to the caller.

The fastopen path does not cope with the above unconditionally dereferencing the subflow context.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54085.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
36b122baf6a8bd46b4a591f12f4ed17b22257408
Fixed
95135835519b0ab931c39908b2c99e9fb3c9068b
Fixed
c0ff6f6da66a7791a32c0234388b1bdc00244917

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54085.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.2.12

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54085.json"