brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

cdrom: fix improper type cast, which can leat to information leak. 

There is another cast from unsigned long to int which causes
a bounds check to fail with specially crafted input. The value is
then used as an index in the slot array in cdrom_slot_status().

This issue is similar to CVE-2018-16658 and CVE-2018-10940.

Signed-off-by: Young_X <YangX92@hotmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Young_X 2018-10-03 12:54:29 +00:00 committed by Jens Axboe
parent fb6360b1ef
commit e4f3aa2e1e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/cdrom/cdrom.c
View File

@ -2445,7 +2445,7 @@ static int cdrom_ioctl_select_disc(struct cdrom_device_info *cdi,
return -ENOSYS;
if (arg != CDSL_CURRENT && arg != CDSL_NONE) {
if ((int)arg >= cdi->capacity)
if (arg >= cdi->capacity)
return -EINVAL;
}