libvirt/SOURCES/libvirt-qemu-Fix-lookup-against-stateless-combined-pflash.patch

47 lines
1.8 KiB
Diff

From f57a07068f7cc7ccdbf9814f9c69cbef1d2c9d6c Mon Sep 17 00:00:00 2001
Message-ID: <f57a07068f7cc7ccdbf9814f9c69cbef1d2c9d6c.1692951632.git.jdenemar@redhat.com>
From: Andrea Bolognani <abologna@redhat.com>
Date: Fri, 26 May 2023 17:47:42 +0200
Subject: [PATCH] qemu: Fix lookup against stateless/combined pflash
Just like the more common split builds, these are of type
QEMU_FIRMWARE_DEVICE_FLASH; however, they have no associated
NVRAM template, so we can't access the corresponding structure
member unconditionally or we'll trigger a crash.
https://bugzilla.redhat.com/show_bug.cgi?id=2196178
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit ac76386edad3be2bbd6202a30063b9205011f5c5)
https://bugzilla.redhat.com/show_bug.cgi?id=2196178
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
---
src/qemu/qemu_firmware.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_firmware.c b/src/qemu/qemu_firmware.c
index 5f030ebce4..b1d342563b 100644
--- a/src/qemu/qemu_firmware.c
+++ b/src/qemu/qemu_firmware.c
@@ -971,9 +971,12 @@ qemuFirmwareMatchesPaths(const qemuFirmware *fw,
if (loader && loader->path &&
STRNEQ(loader->path, flash->executable.filename))
return false;
- if (loader && loader->nvramTemplate &&
- STRNEQ(loader->nvramTemplate, flash->nvram_template.filename))
- return false;
+ if (loader && loader->nvramTemplate) {
+ if (flash->mode != QEMU_FIRMWARE_FLASH_MODE_SPLIT)
+ return false;
+ if (STRNEQ(loader->nvramTemplate, flash->nvram_template.filename))
+ return false;
+ }
break;
case QEMU_FIRMWARE_DEVICE_MEMORY:
if (loader && loader->path &&
--
2.42.0