| commit | b55a06df4f03f21e8a32e9d067a8a5782ac3ce0d | |
| author | liujunjie <liujunjie23@huawei.com> | |
| Thu, 7 Jun 2018 08:02:37 +0000 (7 16:02 +0800) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Mon, 18 Jun 2018 10:06:45 +0000 (18 12:06 +0200) | ||
| tree | 0edfc57a17f025f6bccd098214e00c0cdd561481 | treesnapshot (tar.gz zip) |
| parent | 2ef2f16781af9dee6ba6517755e9073ba5799fa2 | commitdiff |
ps2: check PS2Queue wptr pointer in post_load routine
In commit 802cbcb7300, most issues have been fixed when qemu guest
migration. But the queue size still need to check whether is equal to
PS2_QUEUE_SIZE. If yes, the wptr should set as 0. Or, wptr would larger
than PS2_QUEUE_SIZE and never come back when ps2_queue_noirq is called.
This could lead to OOB access, add check to avoid it.
Signed-off-by: liujunjie <liujunjie23@huawei.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 20180607080237.12360-1-liujunjie23@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In commit 802cbcb7300, most issues have been fixed when qemu guest
migration. But the queue size still need to check whether is equal to
PS2_QUEUE_SIZE. If yes, the wptr should set as 0. Or, wptr would larger
than PS2_QUEUE_SIZE and never come back when ps2_queue_noirq is called.
This could lead to OOB access, add check to avoid it.
Signed-off-by: liujunjie <liujunjie23@huawei.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 20180607080237.12360-1-liujunjie23@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| hw/input/ps2.c | diffblobblamehistory |