[RFC PATCH 6/6] tomoyo: explicitly skip mediation of O_PATH file descriptors
From: Ryan Lee
Date: Wed Mar 12 2025 - 17:24:27 EST
Now that O_PATH fds are being passed to the file_open hook,
unconditionally skip mediation of them to preserve existing behavior.
Signed-off-by: Ryan Lee <ryan.lee@xxxxxxxxxxxxx>
---
security/tomoyo/file.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 8f3b90b6e03d..efecfa7d15b2 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -762,6 +762,10 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain,
};
int idx;
+ /* Preserve the behavior of O_PATH fd creation not being mediated */
+ if (flag & O_PATH)
+ return 0;
+
buf.name = NULL;
r.mode = TOMOYO_CONFIG_DISABLED;
idx = tomoyo_read_lock();
--
2.43.0
base-kernel: v6.14-rc6