[PATCH qemu] hw/net/vmxnet3: Remove g_assert_not_reached() when VMXNET3_REG_ICR is written

[Qiang Liu]

From: cyruscyliu <cyruscyliu@gmail.com>

A malicious guest user can write VMXNET3_REG_ICR to crash QEMU. This
patch remove the g_aasert_not_reached() there and make the access pass.

Fixes: 786fd2b0f87 ("VMXNET3 device implementation")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/309
Buglink: https://bugs.launchpad.net/qemu/+bug/1913923

Signed-off-by: Qiang Liu <cyruscyliu@gmail.com>
---
 hw/net/vmxnet3.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index eff299f629..a388918479 100644
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -1786,13 +1786,6 @@ vmxnet3_io_bar1_write(void *opaque,
         vmxnet3_set_variable_mac(s, val, s->temp_mac);
         break;

-    /* Interrupt Cause Register */
-    case VMXNET3_REG_ICR:
-        VMW_CBPRN("Write BAR1 [VMXNET3_REG_ICR] = %" PRIx64 ", size %d",
-                  val, size);
-        g_assert_not_reached();
-        break;
-
     /* Event Cause Register */
     case VMXNET3_REG_ECR:
         VMW_CBPRN("Write BAR1 [VMXNET3_REG_ECR] = %" PRIx64 ", size %d",
--
2.30.2