Messages in this thread Patch in this message | | | Date | Sat, 10 Mar 2012 11:59:23 +0300 | From | Dan Carpenter <> | Subject | [patch] vt: NULL dereference in vt_do_kdsk_ioctl() |
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We forgot to set the "key_map" variable here, so it's still NULL. This was introduced recently in 079c9534a9 "vt:tackle kbd_table".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 70d0593..86dd1e3 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -1863,6 +1863,7 @@ int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, return -EPERM; } key_maps[s] = new_map; + key_map = new_map; key_map[0] = U(K_ALLOCATED); for (j = 1; j < NR_KEYS; j++) key_map[j] = U(K_HOLE);
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