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Commit 82896210 authored by Dan Carpenter's avatar Dan Carpenter Committed by Greg Kroah-Hartman
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vt: NULL dereference in vt_do_kdsk_ioctl() 



We forgot to set the "key_map" variable here, so it's still NULL.  This
was introduced recently in 079c9534 "vt:tackle kbd_table".

Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Acked-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9abac853

drivers/tty/vt/keyboard.c

+1 −0
Original line number Diff line number Diff line
@@ -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);