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kernel: Set the tracepoint flag in a tracepoint manner

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weishu
2025-11-06 03:57:37 +00:00
committed by ShirkNeko
parent dece57cacf
commit 9cdf98782d
4 changed files with 41 additions and 13 deletions
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21
kernel/core_hook.c
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@@ -1,5 +1,5 @@
#include "linux/compiler.h"
#include "linux/sched/signal.h"
#include <linux/compiler.h>
#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/task_work.h>
#include <linux/thread_info.h>
@@ -42,6 +42,7 @@
#include "selinux/selinux.h"
#include "kernel_compat.h"
#include "supercalls.h"
#include "sucompat.h"
#include "sulog.h"
#ifdef CONFIG_KSU_MANUAL_SU
@@ -261,8 +262,8 @@ void escape_to_root(void)
ksu_sulog_report_su_grant(current_euid().val, NULL, "escape_to_root");
#endif
for_each_thread(p, t){
set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
for_each_thread (p, t) {
ksu_set_task_tracepoint_flag(t);
}
}
@@ -380,8 +381,8 @@ void escape_to_root_for_cmd_su(uid_t target_uid, pid_t target_pid)
#if __SULOG_GATE
ksu_sulog_report_su_grant(target_uid, "cmd_su", "manual_escalation");
#endif
for_each_thread(p, t){
set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT);
for_each_thread (p, t) {
ksu_set_task_tracepoint_flag(t);
}
pr_info("cmd_su: privilege escalation completed for UID: %d, PID: %d\n", target_uid, target_pid);
}
@@ -558,7 +559,7 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
if (new_uid.val == 2000) {
if (ksu_su_compat_enabled) {
set_tsk_thread_flag(current, TIF_SYSCALL_TRACEPOINT);
ksu_set_task_tracepoint_flag(current);
}
}
@@ -579,7 +580,7 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
spin_lock_irq(&current->sighand->siglock);
ksu_seccomp_allow_cache(current->seccomp.filter, __NR_reboot);
if (ksu_su_compat_enabled) {
set_tsk_thread_flag(current, TIF_SYSCALL_TRACEPOINT);
ksu_set_task_tracepoint_flag(current);
}
spin_unlock_irq(&current->sighand->siglock);
return 0;
@@ -593,12 +594,12 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
spin_unlock_irq(&current->sighand->siglock);
}
if (ksu_su_compat_enabled) {
set_tsk_thread_flag(current, TIF_SYSCALL_TRACEPOINT);
ksu_set_task_tracepoint_flag(current);
}
} else {
// Disable syscall tracepoint sucompat for non-allowed processes
if (ksu_su_compat_enabled) {
clear_tsk_thread_flag(current, TIF_SYSCALL_TRACEPOINT);
ksu_clear_task_tracepoint_flag(current);
}
}