Commit 2fc2111c authored by Michael Buesch's avatar Michael Buesch Committed by David S. Miller

ide-tape: Don't leak kernel stack information

Don't leak kernel stack information through uninitialized structure members.
Signed-off-by: default avatarMichael Buesch <mb@bu3sch.de>
Acked-by: Borislav Petkov <petkovbb@gmail.com>.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bc146d23
...@@ -1064,6 +1064,7 @@ static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, ...@@ -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; tape->best_dsc_rw_freq = config.dsc_rw_frequency;
break; break;
case 0x0350: case 0x0350:
memset(&config, 0, sizeof(config));
config.dsc_rw_frequency = (int) tape->best_dsc_rw_freq; config.dsc_rw_frequency = (int) tape->best_dsc_rw_freq;
config.nr_stages = 1; config.nr_stages = 1;
if (copy_to_user(argp, &config, sizeof(config))) if (copy_to_user(argp, &config, sizeof(config)))
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment