CVE-2025-38112

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Source
https://cve.org/CVERecord?id=CVE-2025-38112
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38112.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38112
Downstream
Related
Published
2025-07-03T08:35:21.276Z
Modified
2026-03-20T12:42:40.915811Z
Summary
net: Fix TOCTOU issue in sk_is_readable()
Details

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

net: Fix TOCTOU issue in skisreadable()

sk->skprot->sockisreadable is a valid function pointer when sk resides in a sockmap. After the last skpsockput() (which usually happens when socket is removed from sockmap), sk->skprot gets restored and sk->skprot->sockis_readable becomes NULL.

This makes skisreadable() racy, if the value of sk->sk_prot is reloaded after the initial check. Which in turn may lead to a null pointer dereference.

Ensure the function pointer does not turn NULL after the check.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38112.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
8934ce2fd08171e8605f7fada91ee7619fe17ab8
Fixed
c2b26638476baee154920bb587fc94ff1bf04336
Fixed
6fa68d7eab34d448a61aa24ea31e68b3231ed20d
Fixed
8926a7ef1977a832dd6bf702f1a99303dbf15b15
Fixed
ff55c85a923e043d59d26b20a673a1b4a219c310
Fixed
1e0de7582ceccbdbb227d4e0ddf65732f92526da
Fixed
1b367ba2f94251822577daed031d6b9a9e11ba91
Fixed
2660a544fdc0940bba15f70508a46cf9a6491230

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38112.json"