From c77b8cdf745d91eca138e7bfa430dc6640b604a0 Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Fri, 13 Jul 2018 14:06:02 -0400 Subject: module: replace the existing LSM hook in init_module Both the init_module and finit_module syscalls call either directly or indirectly the security_kernel_read_file LSM hook. This patch replaces the direct call in init_module with a call to the new security_kernel_load_data hook and makes the corresponding changes in SELinux, LoadPin, and IMA. Signed-off-by: Mimi Zohar Cc: Jeff Vander Stoep Cc: Casey Schaufler Cc: Kees Cook Acked-by: Jessica Yu Acked-by: Paul Moore Acked-by: Kees Cook Signed-off-by: James Morris --- security/loadpin/loadpin.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'security/loadpin') diff --git a/security/loadpin/loadpin.c b/security/loadpin/loadpin.c index 5fa191252c8f..0716af28808a 100644 --- a/security/loadpin/loadpin.c +++ b/security/loadpin/loadpin.c @@ -173,9 +173,15 @@ static int loadpin_read_file(struct file *file, enum kernel_read_file_id id) return 0; } +static int loadpin_load_data(enum kernel_load_data_id id) +{ + return loadpin_read_file(NULL, (enum kernel_read_file_id) id); +} + static struct security_hook_list loadpin_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(sb_free_security, loadpin_sb_free_security), LSM_HOOK_INIT(kernel_read_file, loadpin_read_file), + LSM_HOOK_INIT(kernel_load_data, loadpin_load_data), }; void __init loadpin_add_hooks(void) -- cgit v1.2.3