From: Arnd Bergmann <arnd@kernel.org>
To: Paul Moore <paul@paul-moore.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
Amir Goldstein <amir73il@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Casey Schaufler <casey@schaufler-ca.com>,
John Johansen <john.johhansen@canonical.com>,
Christian Brauner <brauner@kernel.org>,
Mimi Zohar <zohar@linux.ibm.com>,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] lsm: export security_mmap_backing_file
Date: Wed, 18 Mar 2026 11:42:54 +0100 [thread overview]
Message-ID: <20260318104322.1643085-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
This symbol can now be used from a loadable erofs module, which causes
a build failure when it is not exported:
ERROR: modpost: "security_mmap_backing_file" [fs/erofs/erofs.ko] undefined!
Fixes: 0e2baaf8fed0 ("lsm: add the security_mmap_backing_file() hook")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
security/security.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/security/security.c b/security/security.c
index 8d10b184ce25..3e426a762864 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2529,6 +2529,7 @@ int security_mmap_backing_file(struct vm_area_struct *vma,
return call_int_hook(mmap_backing_file, vma, backing_file, user_file);
}
+EXPORT_SYMBOL_GPL(security_mmap_backing_file);
/**
* security_mmap_addr() - Check if mmap'ing an address is allowed
--
2.39.5
next reply other threads:[~2026-03-18 10:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-18 10:42 Arnd Bergmann [this message]
2026-03-18 16:29 ` [PATCH] lsm: export security_mmap_backing_file Paul Moore
2026-03-18 17:17 ` Arnd Bergmann
2026-03-18 18:50 ` Paul Moore
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