| commit | 6c1fef6b59563cc415f21e03f81539ed4b33ad90 | |
| author | Prasad J Pandit <pjp@fedoraproject.org> | |
| Thu, 19 May 2016 10:39:31 +0000 (19 16:09 +0530) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Mon, 23 May 2016 14:53:46 +0000 (23 16:53 +0200) | ||
| tree | 087a2fd35b82e4c7157742af6cda74f083c445be | treesnapshot (tar.gz zip) |
| parent | c98c6c105f66f05aa0b7c1d2a4a3f716450907ef | commitdiff |
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>
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>
| hw/scsi/esp.c | diffblobblamehistory |