CVE-2025-40133

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Source
https://cve.org/CVERecord?id=CVE-2025-40133
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40133.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-40133
Downstream
Related
Published
2025-11-12T10:23:22.498Z
Modified
2026-03-20T12:43:11.280410Z
Summary
mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
Details

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

mptcp: Use __skdstget() and dstdevrcu() in mptcpactiveenable().

mptcpactiveenable() is called from subflowfinishconnect(), which is icsk->icskafops->skrxdst_set() and it's not always under RCU.

Using skdstget(sk)->dev could trigger UAF.

Let's use __skdstget() and dstdevrcu().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40133.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
27069e7cb3d1cea9377069266acf19b9cc5ad0ae
Fixed
ad16235c9d3ef7ec17c109ff39b7504f49d17072
Fixed
cc976ec9e38bb79409de3261ba1dbb6868e2a53e
Fixed
893c49a78d9f85e4b8081b908fb7c407d018106a

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40133.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.12.0
Fixed
6.12.55
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.17.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40133.json"