CVE-2023-54085

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-54085
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54085.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-54085
Downstream
Published
2025-12-24T13:06:16.161Z
Modified
2025-12-24T20:51:28.766160Z
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

Affected versions

v6.*

v6.1
v6.1-rc8
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.2.1
v6.2.10
v6.2.11
v6.2.2
v6.2.3
v6.2.4
v6.2.5
v6.2.6
v6.2.7
v6.2.8
v6.2.9
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5

Database specific

source

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