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Subject: [Qemu-devel] [PATCH] 9pfs: fix potential host memory leak in v9fs_read
From: Li Qiang <liq3ea@gmail.com>
In 9pfs read dispatch function, it doesn't free two QEMUIOVector
object thus causing potential memory leak. This patch avoid this.
Signed-off-by: Li Qiang <liq3ea@gmail.com>
---
hw/9pfs/9p.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 119ee58..543a791 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -1826,14 +1826,15 @@ static void v9fs_read(void *opaque)
if (len < 0) {
/* IO error return the error */
err = len;
- goto out;
+ goto out_free_iovec;
}
} while (count < max_count && len > 0);
err = pdu_marshal(pdu, offset, "d", count);
if (err < 0) {
- goto out;
+ goto out_free_iovec;
}
err += offset + count;
+out_free_iovec:
qemu_iovec_destroy(&qiov);
qemu_iovec_destroy(&qiov_full);
} else if (fidp->fid_type == P9_FID_XATTR) {
--
1.8.3.1
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