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[Qemu-devel] [PATCH 1/2] block: vhdx - add error check
From: |
Jeff Cody |
Subject: |
[Qemu-devel] [PATCH 1/2] block: vhdx - add error check |
Date: |
Wed, 6 Aug 2014 15:54:57 -0400 |
This add an error check for an invalid descriptor entry signature,
when flushing the log descriptor entries.
Signed-off-by: Jeff Cody <address@hidden>
---
block/vhdx-log.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index a77c040..7c2630d 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -435,6 +435,11 @@ static int vhdx_log_flush_desc(BlockDriverState *bs,
VHDXLogDescriptor *desc,
/* write 'count' sectors of sector */
memset(buffer, 0, VHDX_LOG_SECTOR_SIZE);
count = desc->zero_length / VHDX_LOG_SECTOR_SIZE;
+ } else {
+ error_report("Invalid VHDX log descriptor entry signature 0x%" PRIx32,
+ desc->signature);
+ ret = -EINVAL;
+ goto exit;
}
file_offset = desc->file_offset;
--
1.9.3