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| author | Prasad J Pandit <pjp@fedoraproject.org> | 2020-05-15 01:36:08 +0530 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2020-06-22 12:15:05 -0500 |
| commit | c436692c6a229f35db1fe24ba60fe04013d92b25 (patch) | |
| tree | 0cadf248cf7f64d1b687a7a92325440b2be34b0d /qapi/qobject-output-visitor.c | |
| parent | 69a6048e1ef24a65da45a0c6802ace95066f0f37 (diff) | |
| download | qemu-c436692c6a229f35db1fe24ba60fe04013d92b25.zip qemu-c436692c6a229f35db1fe24ba60fe04013d92b25.tar.gz qemu-c436692c6a229f35db1fe24ba60fe04013d92b25.tar.bz2 | |
es1370: check total frame count against current frame
A guest user may set channel frame count via es1370_write()
such that, in es1370_transfer_audio(), total frame count
'size' is lesser than the number of frames that are processed
'cnt'.
int cnt = d->frame_cnt >> 16;
int size = d->frame_cnt & 0xffff;
if (size < cnt), it results in incorrect calculations leading
to OOB access issue(s). Add check to avoid it.
Reported-by: Ren Ding <rding@gatech.edu>
Reported-by: Hanqing Zhao <hanqing@gatech.edu>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 20200514200608.1744203-1-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 369ff955a8497988d079c4e3fa1e93c2570c1c69)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'qapi/qobject-output-visitor.c')
0 files changed, 0 insertions, 0 deletions