27 lines
896 B
Diff
27 lines
896 B
Diff
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From: Li Qiang <address@hidden>
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While processing isochronous transfer descriptors(iTD), if the page
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select(PG) field value is out of bands it will return. In this
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situation the ehci's sg list doesn't be freed thus leading a memory
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leak issue. This patch avoid this.
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Signed-off-by: Li Qiang <address@hidden>
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---
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hw/usb/hcd-ehci.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
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index b093db7..f4ece9a 100644
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--- a/hw/usb/hcd-ehci.c
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+++ b/hw/usb/hcd-ehci.c
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@@ -1426,6 +1426,7 @@ static int ehci_process_itd(EHCIState *ehci,
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if (off + len > 4096) {
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/* transfer crosses page border */
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if (pg == 6) {
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+ qemu_sglist_destroy(&ehci->isgl);
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return -1; /* avoid page pg + 1 */
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}
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ptr2 = (itd->bufptr[pg + 1] & ITD_BUFPTR_MASK);
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--
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1.8.3.1
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