On Mon, 28 Jan 2008, Aurelien Jarno wrote:
This patch from Tavis Ormandy <[EMAIL PROTECTED]> fixes an infinite
loop in the emulated SB16 device.
See http://taviso.decsystem.org/virtsec.pdf for more details.
---
hw/sb16.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/hw/sb16.c b/hw/sb16.c
index c22de7a..b2a3a70 100644
--- a/hw/sb16.c
+++ b/hw/sb16.c
@@ -1246,8 +1246,10 @@ static int SB_read_DMA (void *opaque, int nchan, int
dma_pos, int dma_len)
s->block_size);
#endif
- while (s->left_till_irq <= 0) {
- s->left_till_irq = s->block_size + s->left_till_irq;
+ if (s->block_size) {
+ while (s->left_till_irq <= 0) {
+ s->left_till_irq = s->block_size + s->left_till_irq;
+ }
}
return dma_pos;
This was fixed by commit 'Mon Jan 14 04:24:29 2008 UTC (2 weeks, 1 day
ago) by balrog', and the fix is elaborated on in:
http://lists.gnu.org/archive/html/qemu-devel/2007-05/msg00038.html
http://lists.gnu.org/archive/html/qemu-devel/2007-05/msg00019.html
--
mailto:[EMAIL PROTECTED]
