CVE-2025-38112None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: net: Fix TOCTOU issue in sk_is_readable() sk->sk_prot->sock_is_readable is a valid function pointer when sk resides in a sockmap. After the last sk_psock_put() (which …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
0.1% → 0.1%
In the Linux kernel, the following vulnerability has been resolved:
net: Fix TOCTOU issue in sk_is_readable()
sk->sk_prot->sock_is_readable is a valid function pointer when sk resides in a sockmap. After the last sk_psock_put() (which usually happens when socket is removed from sockmap), sk->sk_prot gets restored and sk->sk_prot->sock_is_readable becomes NULL.
This makes sk_is_readable() 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.
Linux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < c2b26638476baee154920bb587fc94ff1bf04336Linux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 6fa68d7eab34d448a61aa24ea31e68b3231ed20dLinux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 8926a7ef1977a832dd6bf702f1a99303dbf15b15Linux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < ff55c85a923e043d59d26b20a673a1b4a219c310Linux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 1e0de7582ceccbdbb227d4e0ddf65732f92526daLinux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 1b367ba2f94251822577daed031d6b9a9e11ba91Linux >= 8934ce2fd08171e8605f7fada91ee7619fe17ab8 < 2660a544fdc0940bba15f70508a46cf9a6491230Linux 4.17Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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