CVE-2024-40931

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Source
https://cve.org/CVERecord?id=CVE-2024-40931
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40931.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-40931
Downstream
Related
Published
2024-07-12T12:25:09.778Z
Modified
2026-03-14T12:35:02.886143Z
Summary
mptcp: ensure snd_una is properly initialized on connect
Details

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

mptcp: ensure snd_una is properly initialized on connect

This is strictly related to commit fb7a0d334894 ("mptcp: ensure sndnxt is properly initialized on connect"). It turns out that syzkaller can trigger the retransmit after fallback and before processing any other incoming packet - so that snduna is still left uninitialized.

Address the issue explicitly initializing snduna together with sndnxt and write_seq.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40931.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
8fd738049ac3d67a937d36577763b47180aae1ad
Fixed
208cd22ef5e57f82d38ec11c1a1703f9401d6dde
Fixed
7b9c7fc8600b64a86e4b47b2d190bba380267726
Fixed
f03c46eabb3a67bd2993e237ab5517f00a5f1813
Fixed
f1f0a46f8bb8890b90ab7194f0a0c8fe2a3fb57f
Fixed
ef473bf1dd7e8dd08bcc04b9e2d1bfed69a0a7ce
Fixed
8031b58c3a9b1db3ef68b3bd749fbee2e1e1aaa3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-40931.json"