CVE - CVE-2025-38112

CVE-ID
CVE-2025-38112	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1b367ba2f94251822577daed031d6b9a9e11ba91 URL:https://git.kernel.org/stable/c/1b367ba2f94251822577daed031d6b9a9e11ba91 MISC:https://git.kernel.org/stable/c/1e0de7582ceccbdbb227d4e0ddf65732f92526da URL:https://git.kernel.org/stable/c/1e0de7582ceccbdbb227d4e0ddf65732f92526da MISC:https://git.kernel.org/stable/c/2660a544fdc0940bba15f70508a46cf9a6491230 URL:https://git.kernel.org/stable/c/2660a544fdc0940bba15f70508a46cf9a6491230 MISC:https://git.kernel.org/stable/c/6fa68d7eab34d448a61aa24ea31e68b3231ed20d URL:https://git.kernel.org/stable/c/6fa68d7eab34d448a61aa24ea31e68b3231ed20d MISC:https://git.kernel.org/stable/c/8926a7ef1977a832dd6bf702f1a99303dbf15b15 URL:https://git.kernel.org/stable/c/8926a7ef1977a832dd6bf702f1a99303dbf15b15 MISC:https://git.kernel.org/stable/c/c2b26638476baee154920bb587fc94ff1bf04336 URL:https://git.kernel.org/stable/c/c2b26638476baee154920bb587fc94ff1bf04336 MISC:https://git.kernel.org/stable/c/ff55c85a923e043d59d26b20a673a1b4a219c310 URL:https://git.kernel.org/stable/c/ff55c85a923e043d59d26b20a673a1b4a219c310
Assigning CNA
kernel.org
Date Record Created
20250416	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250416)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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