path: root/security/tomoyo
diff options
authorLinus Torvalds <>2020-06-04 14:07:08 -0700
committerLinus Torvalds <>2020-06-04 14:07:08 -0700
commit15a2bc4dbb9cfed1c661a657fcb10798150b7598 (patch)
treef9ca834dbdd2e6cf1d5a2cef5008f82c72b00261 /security/tomoyo
parent9ff7258575d5fee011649d20cc56de720a395191 (diff)
parent3977e285ee89a94699255dbbf6eeea13889a1083 (diff)
Merge branch 'exec-linus' of git://
Pull execve updates from Eric Biederman: "Last cycle for the Nth time I ran into bugs and quality of implementation issues related to exec that could not be easily be fixed because of the way exec is implemented. So I have been digging into exec and cleanup up what I can. I don't think I have exec sorted out enough to fix the issues I started with but I have made some headway this cycle with 4 sets of changes. - promised cleanups after introducing exec_update_mutex - trivial cleanups for exec - control flow simplifications - remove the recomputation of bprm->cred The net result is code that is a bit easier to understand and work with and a decrease in the number of lines of code (if you don't count the added tests)" * 'exec-linus' of git:// (24 commits) exec: Compute file based creds only once exec: Add a per bprm->file version of per_clear binfmt_elf_fdpic: fix execfd build regression selftests/exec: Add binfmt_script regression test exec: Remove recursion from search_binary_handler exec: Generic execfd support exec/binfmt_script: Don't modify bprm->buf and then return -ENOEXEC exec: Move the call of prepare_binprm into search_binary_handler exec: Allow load_misc_binary to call prepare_binprm unconditionally exec: Convert security_bprm_set_creds into security_bprm_repopulate_creds exec: Factor security_bprm_creds_for_exec out of security_bprm_set_creds exec: Teach prepare_exec_creds how exec treats uids & gids exec: Set the point of no return sooner exec: Move handling of the point of no return to the top level exec: Run sync_mm_rss before taking exec_update_mutex exec: Fix spelling of search_binary_handler in a comment exec: Move the comment from above de_thread to above unshare_sighand exec: Rename flush_old_exec begin_new_exec exec: Move most of setup_new_exec into flush_old_exec exec: In setup_new_exec cache current in the local variable me ...
Diffstat (limited to 'security/tomoyo')
1 files changed, 3 insertions, 9 deletions
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 716c92ec941a..f9adddc42ac8 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -63,21 +63,15 @@ static void tomoyo_bprm_committed_creds(struct linux_binprm *bprm)
- * tomoyo_bprm_set_creds - Target for security_bprm_set_creds().
+ * tomoyo_bprm_for_exec - Target for security_bprm_creds_for_exec().
* @bprm: Pointer to "struct linux_binprm".
* Returns 0.
-static int tomoyo_bprm_set_creds(struct linux_binprm *bprm)
+static int tomoyo_bprm_creds_for_exec(struct linux_binprm *bprm)
- * Do only if this function is called for the first time of an execve
- * operation.
- */
- if (bprm->called_set_creds)
- return 0;
- /*
* Load policy if /sbin/tomoyo-init exists and /sbin/init is requested
* for the first time.
@@ -539,7 +533,7 @@ static struct security_hook_list tomoyo_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(task_alloc, tomoyo_task_alloc),
LSM_HOOK_INIT(task_free, tomoyo_task_free),
- LSM_HOOK_INIT(bprm_set_creds, tomoyo_bprm_set_creds),
+ LSM_HOOK_INIT(bprm_creds_for_exec, tomoyo_bprm_creds_for_exec),
LSM_HOOK_INIT(bprm_check_security, tomoyo_bprm_check_security),
LSM_HOOK_INIT(file_fcntl, tomoyo_file_fcntl),