ide-tape: Don't leak kernel stack information
Don't leak kernel stack information through uninitialized structure members.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 013dc59..bc5fb12 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1064,6 +1064,7 @@
tape->best_dsc_rw_freq = config.dsc_rw_frequency;
break;
case 0x0350:
+ memset(&config, 0, sizeof(config));
config.dsc_rw_frequency = (int) tape->best_dsc_rw_freq;
config.nr_stages = 1;
if (copy_to_user(argp, &config, sizeof(config)))