Answer in brief
CVE-2026-72242 records a High severity (CVSS 7.5) vulnerability in selinux: avoid sk_socket dereference in selinux_sctp_bind_connect(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d452930fd3b9031e59abfeddb2fa383f1403d61a <5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <cc8bd47b35eca82393cbad08b1cc86f02e034439 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <d61a80b17254be7230bc5544f8e62ddf21ab38e2 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <56acfeb10019e200ab6787d01f8d7cbe0f01526f | 5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4, cc8bd47b35eca82393cbad08b1cc86f02e034439, d61a80b17254be7230bc5544f8e62ddf21ab38e2, 37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb, 56acfeb10019e200ab6787d01f8d7cbe0f01526f |
| Linux/Linuxgeneric | 4.17 | Not reported |
| Linux/Linuxgeneric | >=d452930fd3b9031e59abfeddb2fa383f1403d61a <e4f3b8db1b0c5e9f6374b8996d9e1888d1042b55 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <2fcaf133a8fd88b69f32ebaecad93fd302da828f || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <a4bc2fb8536488b37680c0b66c59434a4b7f8c2f || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <cc8bd47b35eca82393cbad08b1cc86f02e034439 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <d61a80b17254be7230bc5544f8e62ddf21ab38e2 || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb || >=d452930fd3b9031e59abfeddb2fa383f1403d61a <56acfeb10019e200ab6787d01f8d7cbe0f01526f | e4f3b8db1b0c5e9f6374b8996d9e1888d1042b55, 2fcaf133a8fd88b69f32ebaecad93fd302da828f, a4bc2fb8536488b37680c0b66c59434a4b7f8c2f, 5d4d93f9bfbc997ffbb03cd6107e8f6979dbb9b4, cc8bd47b35eca82393cbad08b1cc86f02e034439, d61a80b17254be7230bc5544f8e62ddf21ab38e2, 37d642b37ccdc31e1947c2ebc8dc38f03d4a0ceb, 56acfeb10019e200ab6787d01f8d7cbe0f01526f |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: selinux: avoid sk_socket dereference in selinux_sctp_bind_connect() selinux_sctp_bind_connect() dereferences sk->sk_socket to pass a struct socket * to selinux_socket_bind() and selinux_socket_connect_helper(). However, when the hook is invoked from the ASCONF softirq path (sctp_process_asconf), there is no file reference guaranteeing that sk->sk_socket is non-NULL. The setsockopt callers (bindx, connectx, set_primary, sendmsg connect) hold a file reference and are not affected. Both selinux_socket_bind() and selinux_socket_connect_helper() immediately resolve sock->sk, never using the struct socket * for anything else. Refactor the inner logic into helpers that take a struct sock * directly so that selinux_sctp_bind_connect() never needs to touch sk->sk_socket at all.
Quoted source text, attributed separately from HOL analysis.