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Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/linux-security-module/20260616201615.275032-1-hexlabsecurity@proton.me/ Link: https://lore.kernel.org/linux-security-module/20260617180526.15627-2-matthieu@buffet.re/ Reported-by: Bryam Vargas <hexlabsecurity@proton.me> Reported-by: Matthieu Buffet <matthieu@buffet.re> Reported-by: Mikhail Ivanov <ivanov.mikhail1@huawei-partners.com> Signed-off-by: Stephen Smalley <stephen.smalley.work@gmail.com> Tested-by: Bryam Vargas <hexlabsecurity@proton.me> Signed-off-by: Paul Moore <paul@paul-moore.com>