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[Qemu-devel] [PATCH] audio/hda: fix guest triggerable assert
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH] audio/hda: fix guest triggerable assert |
Date: |
Thu, 22 Nov 2018 14:32:07 +0100 |
Guest writes to a readonly register trigger the assert in
intel_hda_reg_write(). Add a check and just ignore them.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1628433
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/audio/intel-hda.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/audio/intel-hda.c b/hw/audio/intel-hda.c
index 23a2cf6484..066532713c 100644
--- a/hw/audio/intel-hda.c
+++ b/hw/audio/intel-hda.c
@@ -929,6 +929,10 @@ static void intel_hda_reg_write(IntelHDAState *d, const
IntelHDAReg *reg, uint32
if (!reg) {
return;
}
+ if (!reg->wmask) {
+ /* read-only register */
+ return;
+ }
if (d->debug) {
time_t now = time(NULL);
--
2.9.3
- [Qemu-devel] [PATCH] audio/hda: fix guest triggerable assert,
Gerd Hoffmann <=