ide-tape: Don't leak kernel stack information

[mv-sheeva.git] / drivers / ide / ide-ioctls.c

diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 82f252c3ee6e500eb85fc466f1fc26e5c71b6d5a..e246d3d3fbcc5c280ff520b090c297eb42c05a1e 100644 (file)
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -64,7 +64,8 @@ static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd,
                goto out;
        }
 
-       id = kmalloc(size, GFP_KERNEL);
+       /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */
+       id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL);
        if (id == NULL) {
                rc = -ENOMEM;
                goto out;