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ide-tape: Don't leak kernel stack information

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Don't leak kernel stack information through uninitialized structure members.

Signed-off-by: Michael Buesch <[email protected]>
Acked-by: Borislav Petkov <[email protected]>.
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Michael Buesch 2009-07-19 09:15:19 +00:00 • committed by David S. Miller
commit 2fc2111c27
1 changed files with 1 additions and 0 deletions
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1
drivers/ide/ide-tape.c
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@ -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)))