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Fixes only hook in LKM mode __NR_newfstatat ,__NR_faccessat ,__NR_execve system calls

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ShirkNeko
2025-11-09 12:16:23 +08:00
parent 6530d06710
commit 049956aaa9
2 changed files with 6 additions and 3 deletions
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8
kernel/syscall_hook_manager.c
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@@ -315,11 +315,12 @@ static inline void ksu_handle_task_alloc(struct pt_regs *regs)
#endif
}
#ifdef KSU_HAVE_SYSCALL_TRACEPOINTS_HOOK
#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
// Generic sys_enter handler that dispatches to specific handlers
static void ksu_sys_enter_handler(void *data, struct pt_regs *regs, long id)
{
if (unlikely(check_syscall_fastpath(id))) {
#ifdef KSU_LKM_MODE
if (ksu_su_compat_enabled) {
// Handle newfstatat
if (id == __NR_newfstatat) {
@@ -355,6 +356,7 @@ static void ksu_sys_enter_handler(void *data, struct pt_regs *regs, long id)
return;
}
}
#endif
// Handle setresuid
if (id == __NR_setresuid) {
@@ -394,7 +396,7 @@ void ksu_syscall_hook_manager_init(void)
syscall_unregfunc_rp = init_kretprobe("syscall_unregfunc", syscall_unregfunc_handler);
#endif
#ifdef KSU_HAVE_SYSCALL_TRACEPOINTS_HOOK
#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
ret = register_trace_sys_enter(ksu_sys_enter_handler, NULL);
#ifndef CONFIG_KRETPROBES
unmark_all_process();
@@ -414,7 +416,7 @@ void ksu_syscall_hook_manager_init(void)
void ksu_syscall_hook_manager_exit(void)
{
pr_info("hook_manager: ksu_hook_manager_exit called\n");
#ifdef KSU_HAVE_SYSCALL_TRACEPOINTS_HOOK
#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
unregister_trace_sys_enter(ksu_sys_enter_handler, NULL);
tracepoint_synchronize_unregister();
pr_info("hook_manager: sys_enter tracepoint unregistered\n");