From 2fc2111c2729462b99b6e37f39a48917054776f5 Mon Sep 17 00:00:00 2001 From: Michael Buesch <mb@bu3sch.de> Date: Sun, 19 Jul 2009 09:15:19 +0000 Subject: [PATCH] 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> --- drivers/ide/ide-tape.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 013dc595fab6..bc5fb12b913c 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1064,6 +1064,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, 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))) -- GitLab