[PATCH] setkeys needs root

Because people can play games reprogramming keys and leaving traps for the next user of the console. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] setkeys needs root
Because people can play games reprogramming keys and leaving traps for the next user of the console. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton · Linus Torvalds
1 parent eb8e317998
Showing 1 changed file with 3 additions and 0 deletions Side-by-side Diff
drivers/char/vt_ioctl.c
@@ -192,6 +192,9 @@
 	int i, j, k;
 	int ret;
  
+	if (!capable(CAP_SYS_TTY_CONFIG))
+		return -EPERM;
+
 	kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
 	if (!kbs) {
 		ret = -ENOMEM;
...	...	@@ -192,6 +192,9 @@
192	192	int i, j, k;
193	193	int ret;
194	194
	195	+ if (!capable(CAP_SYS_TTY_CONFIG))
	196	+ return -EPERM;
	197	+
195	198	kbs = kmalloc(sizeof(*kbs), GFP_KERNEL);
196	199	if (!kbs) {
197	200	ret = -ENOMEM;