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kernel: Fixed disable_seccomp compatibility issues

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ShirkNeko
2025-10-01 00:15:05 +08:00
parent ca67913f05
commit 8650a9ad57
1 changed files with 24 additions and 1 deletions
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25
kernel/core_hook.c
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@@ -298,6 +298,29 @@ void escape_to_root(void)
}
#ifdef CONFIG_KSU_MANUAL_SU
static void disable_seccomp_for_task(struct task_struct *tsk)
{
if (!tsk->seccomp.filter && tsk->seccomp.mode == SECCOMP_MODE_DISABLED)
return;
if (WARN_ON(!spin_is_locked(&tsk->sighand->siglock)))
return;
#ifdef CONFIG_SECCOMP
tsk->seccomp.mode = 0;
if (tsk->seccomp.filter) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
seccomp_filter_release(tsk);
atomic_set(&tsk->seccomp.filter_count, 0);
#else
put_seccomp_filter(tsk);
tsk->seccomp.filter = NULL;
#endif
}
#endif
}
void escape_to_root_for_cmd_su(uid_t target_uid, pid_t target_pid)
{
struct cred *newcreds;
@@ -358,7 +381,7 @@ void escape_to_root_for_cmd_su(uid_t target_uid, pid_t target_pid)
if (target_task->sighand) {
spin_lock_irq(&target_task->sighand->siglock);
disable_seccomp(target_task);
disable_seccomp_for_task(target_task);
spin_unlock_irq(&target_task->sighand->siglock);
}