Skip to content

kernel: added new prctl CMD_GET_MANAGER_UID to get the uid of the crowned manager #2673

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
aviraxp merged 4 commits into from
Jul 11, 2025
Merged

kernel: added new prctl CMD_GET_MANAGER_UID to get the uid of the crowned manager #2673

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
06029ca
kernel: added new prctl CMD_GET_MANAGER_UID to get the uid of the cro…
rifsxd Jul 9, 2025
fa1cac0
kernel: add better error message if CMD_GET_MANAGWR_UID fails to fetc…
rifsxd Jul 10, 2025
d29a6dd
Merge branch 'main' into main
rifsxd Jul 11, 2025
1ffb81d
kernel: move the prctl CMD_GET_MANAGER_UID before the early return of…
rifsxd Jul 11, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions kernel/core_hook.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -413,6 +413,17 @@ int ksu_handle_prctl(int option, unsigned long arg2, unsigned long arg3,
return 0;
}

if (arg2 == CMD_GET_MANAGER_UID) {
uid_t manager_uid = ksu_get_manager_uid();
if (copy_to_user(arg3, &manager_uid, sizeof(manager_uid))) {
pr_err("get manager uid failed\n");
}
if (copy_to_user(result, &reply_ok, sizeof(reply_ok))) {
pr_err("prctl reply error, cmd: %lu\n", arg2);
}
return 0;
}

// all other cmds are for 'root manager'
if (!from_manager) {
return 0;
Expand Down
1 change: 1 addition & 0 deletions kernel/ksu.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
#define CMD_UID_SHOULD_UMOUNT 13
#define CMD_IS_SU_ENABLED 14
#define CMD_ENABLE_SU 15
#define CMD_GET_MANAGER_UID 16

#define EVENT_POST_FS_DATA 1
#define EVENT_BOOT_COMPLETED 2
Expand Down