[PATCH] apparmor: domain: clean up duplicated parts of handle_onexec()

From: Leesoo Ahn
Date: Mon Jul 08 2024 - 23:08:17 EST


Regression test of AppArmor finished without any failures.

PASSED: aa_exec access attach_disconnected at_secure introspect capabilities
changeprofile onexec changehat changehat_fork changehat_misc chdir clone
coredump deleted e2e environ exec exec_qual fchdir fd_inheritance fork i18n
link link_subset mkdir mmap mount mult_mount named_pipe namespaces net_raw
open openat pipe pivot_root posix_ipc ptrace pwrite query_label regex rename
readdir rw socketpair swap sd_flags setattr symlink syscall sysv_ipc tcp
unix_fd_server unix_socket_pathname unix_socket_abstract unix_socket_unnamed
unix_socket_autobind unlink userns xattrs xattrs_profile longpath nfs
exec_stack aa_policy_cache nnp stackonexec stackprofile
FAILED:
make: Leaving directory '/apparmor/tests/regression/apparmor'

Signed-off-by: Leesoo Ahn <lsahn@xxxxxxxxxx>
---
security/apparmor/domain.c | 37 +++++++++++--------------------------
1 file changed, 11 insertions(+), 26 deletions(-)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 571158ec6188..b73e01b512c2 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -822,33 +822,18 @@ static struct aa_label *handle_onexec(const struct cred *subj_cred,
AA_BUG(!bprm);
AA_BUG(!buffer);

- if (!stack) {
- error = fn_for_each_in_ns(label, profile,
- profile_onexec(subj_cred, profile, onexec, stack,
- bprm, buffer, cond, unsafe));
- if (error)
- return ERR_PTR(error);
- new = fn_label_build_in_ns(label, profile, GFP_KERNEL,
- aa_get_newest_label(onexec),
- profile_transition(subj_cred, profile, bprm,
- buffer,
- cond, unsafe));
-
- } else {
- /* TODO: determine how much we want to loosen this */
- error = fn_for_each_in_ns(label, profile,
- profile_onexec(subj_cred, profile, onexec, stack, bprm,
- buffer, cond, unsafe));
- if (error)
- return ERR_PTR(error);
- new = fn_label_build_in_ns(label, profile, GFP_KERNEL,
- aa_label_merge(&profile->label, onexec,
- GFP_KERNEL),
- profile_transition(subj_cred, profile, bprm,
- buffer,
- cond, unsafe));
- }
+ /* TODO: determine how much we want to loosen this */
+ error = fn_for_each_in_ns(label, profile,
+ profile_onexec(subj_cred, profile, onexec, stack,
+ bprm, buffer, cond, unsafe));
+ if (error)
+ return ERR_PTR(error);

+ new = fn_label_build_in_ns(label, profile, GFP_KERNEL,
+ stack ? aa_label_merge(&profile->label, onexec, GFP_KERNEL)
+ : aa_get_newest_label(onexec),
+ profile_transition(subj_cred, profile, bprm,
+ buffer, cond, unsafe));
if (new)
return new;

--
2.34.1