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kernel: use uid instead of package to compare allowlist, fix #580

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weishu
2023-06-04 09:18:27 +08:00
parent 2ce3976023
commit fc77ca989f
3 changed files with 6 additions and 8 deletions
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10
kernel/allowlist.c
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@@ -80,7 +80,7 @@ static void ksu_grant_root_to_shell()
}
#endif
bool ksu_get_app_profile(struct app_profile *profile, bool query_by_uid)
bool ksu_get_app_profile(struct app_profile *profile)
{
struct perm_data *p = NULL;
struct list_head *pos = NULL;
@@ -88,10 +88,8 @@ bool ksu_get_app_profile(struct app_profile *profile, bool query_by_uid)
list_for_each (pos, &allow_list) {
p = list_entry(pos, struct perm_data, list);
bool uid_match =
(query_by_uid &&
profile->current_uid == p->profile.current_uid);
if (uid_match || !strcmp(profile->key, p->profile.key)) {
bool uid_match = profile->current_uid == p->profile.current_uid;
if (uid_match) {
// found it, override it with ours
memcpy(profile, &p->profile, sizeof(*profile));
found = true;
@@ -183,7 +181,7 @@ bool ksu_is_allow_uid(uid_t uid)
bool ksu_is_uid_should_umount(uid_t uid)
{
struct app_profile profile = { .current_uid = uid };
bool found = ksu_get_app_profile(&profile, true);
bool found = ksu_get_app_profile(&profile);
if (!found) {
// no app profile found, it must be non root app
return default_non_root_profile.umount_modules;

2
kernel/allowlist.h
View File

@@ -18,7 +18,7 @@ bool ksu_get_allow_list(int *array, int *length, bool allow);
void ksu_prune_allowlist(bool (*is_uid_exist)(uid_t, void *), void *data);
bool ksu_get_app_profile(struct app_profile *, bool query_by_uid);
bool ksu_get_app_profile(struct app_profile *);
bool ksu_set_app_profile(struct app_profile *, bool persist);
bool ksu_is_uid_should_umount(uid_t uid);

2
kernel/core_hook.c
View File

@@ -361,7 +361,7 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
return 0;
}
bool success = ksu_get_app_profile(&profile, false);
bool success = ksu_get_app_profile(&profile);
if (success) {
if (copy_to_user(arg3, &profile, sizeof(profile))) {
pr_err("copy profile failed\n");