2983660f65
CVE-2013-4377: Fix crash when unplugging virtio devices (bz #1012633, bz #1012641) Fix 'new snapshot' slowness after the first snap (bz #988436) Fix 9pfs xattrs on kernel 3.11 (bz #1013676) CVE-2013-4344: buffer overflow in scsi_target_emulate_report_luns (bz #1015274, bz #1007330)
35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 2a93d3dd32386c3522cfa2ee60c9e06a298d1f52 Mon Sep 17 00:00:00 2001
|
|
From: Jan Kiszka <jan.kiszka@siemens.com>
|
|
Date: Mon, 2 Sep 2013 18:43:31 +0200
|
|
Subject: [PATCH] Revert "memory: Return -1 again on reads from unsigned
|
|
regions"
|
|
|
|
This reverts commit 9b8c69243585a32d14b9bb9fcd52c37b0b5a1b71.
|
|
|
|
The commit was wrong: We only return -1 on invalid accesses, not on
|
|
valid but unbacked ones. This broke various corner cases.
|
|
|
|
Cc: qemu-stable@nongnu.org
|
|
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
(cherry picked from commit 68a7439a150d6b4da99082ab454b9328b151bc25)
|
|
|
|
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
|
|
---
|
|
memory.c | 2 +-
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
diff --git a/memory.c b/memory.c
|
|
index 886f838..5a10fd0 100644
|
|
--- a/memory.c
|
|
+++ b/memory.c
|
|
@@ -872,7 +872,7 @@ static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
|
|
if (current_cpu != NULL) {
|
|
cpu_unassigned_access(current_cpu, addr, false, false, 0, size);
|
|
}
|
|
- return -1ULL;
|
|
+ return 0;
|
|
}
|
|
|
|
static void unassigned_mem_write(void *opaque, hwaddr addr,
|