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| author | Jeff Cody <jcody@redhat.com> | 2014-08-06 15:54:57 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-08-15 15:07:14 +0200 |
| commit | 349592e0b9112171500e940dd921bb96cfc496d2 (patch) | |
| tree | fc521a4cc799741538614d28e11972f12f030d2e /block/vhdx-log.c | |
| parent | 3c80ca158c96ff902a30883a8933e755988948b1 (diff) | |
| download | qemu-349592e0b9112171500e940dd921bb96cfc496d2.zip qemu-349592e0b9112171500e940dd921bb96cfc496d2.tar.gz qemu-349592e0b9112171500e940dd921bb96cfc496d2.tar.bz2 | |
block: vhdx - add error check
This add an error check for an invalid descriptor entry signature,
when flushing the log descriptor entries.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/vhdx-log.c')
| -rw-r--r-- | block/vhdx-log.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; |