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| author | Prasad J Pandit | 2016-05-19 12:39:31 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2016-05-23 16:53:46 +0200 |
| commit | 6c1fef6b59563cc415f21e03f81539ed4b33ad90 (patch) | |
| tree | 087a2fd35b82e4c7157742af6cda74f083c445be /scripts | |
| parent | esp: check command buffer length before write(CVE-2016-4439) (diff) | |
| download | qemu-6c1fef6b59563cc415f21e03f81539ed4b33ad90.tar.gz qemu-6c1fef6b59563cc415f21e03f81539ed4b33ad90.tar.xz qemu-6c1fef6b59563cc415f21e03f81539ed4b33ad90.zip | |
esp: check dma length before reading scsi command(CVE-2016-4441)
The 53C9X Fast SCSI Controller(FSC) comes with an internal 16-byte
FIFO buffer. It is used to handle command and data transfer.
Routine get_cmd() uses DMA to read scsi commands into this buffer.
Add check to validate DMA length against buffer size to avoid any
overrun.
Fixes CVE-2016-4441.
Reported-by: Li Qiang <liqiang6-s@360.cn>
Cc: qemu-stable@nongnu.org
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <1463654371-11169-3-git-send-email-ppandit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions