pve-qemu/debian/patches/extra/CVE-2016-9106-9pfs-fix-memo...

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Diff

From 2c5bcb2d5f32ffcf5064d3557e44836fa70700be Mon Sep 17 00:00:00 2001
From: Li Qiang <liqiang6-s@360.cn>
Date: Mon, 17 Oct 2016 14:13:58 +0200
Subject: [PATCH 7/8] 9pfs: fix memory leak in v9fs_write
If an error occurs when marshalling the transfer length to the guest, the
v9fs_write() function doesn't free an IO vector, thus leading to a memory
leak. This patch fixes the issue.
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Greg Kurz <groug@kaod.org>
[groug, rephrased the changelog]
Signed-off-by: Greg Kurz <groug@kaod.org>
---
hw/9pfs/9p.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index aa2b8c0..af07846 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -2080,7 +2080,7 @@ static void v9fs_write(void *opaque)
offset = 7;
err = pdu_marshal(pdu, offset, "d", total);
if (err < 0) {
- goto out;
+ goto out_qiov;
}
err += offset;
trace_v9fs_write_return(pdu->tag, pdu->id, total, err);
--
2.1.4