From 1167ec3f476e1886606ca76bd153708aead0d397 Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Wed, 21 Feb 2018 11:30:37 -0500
Subject: [PATCH] unix,win: ensure req->bufs is freed

This commit ensures that req->bufs (req->fs.info.bufs on Windows)
is initialized to NULL in INIT and freed, if necessary, in
uv_fs_req_cleanup().

Refs: https://github.com/libuv/libuv/pull/1751#discussion_r169645330
PR-URL: https://github.com/libuv/libuv/pull/1752
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 src/unix/fs.c | 5 +++++
 src/win/fs.c  | 1 +
 2 files changed, 6 insertions(+)

diff --git a/src/unix/fs.c b/src/unix/fs.c
index bd0d0bea..92e2d255 100644
--- a/src/unix/fs.c
+++ b/src/unix/fs.c
@@ -75,6 +75,7 @@
     req->loop = loop;                                                         \
     req->path = NULL;                                                         \
     req->new_path = NULL;                                                     \
+    req->bufs = NULL;                                                         \
     req->cb = cb;                                                             \
   }                                                                           \
   while (0)
@@ -1485,6 +1486,10 @@ void uv_fs_req_cleanup(uv_fs_t* req) {
   if (req->fs_type == UV_FS_SCANDIR && req->ptr != NULL)
     uv__fs_scandir_cleanup(req);
 
+  if (req->bufs != req->bufsml)
+    uv__free(req->bufs);
+  req->bufs = NULL;
+
   if (req->ptr != &req->statbuf)
     uv__free(req->ptr);
   req->ptr = NULL;
diff --git a/src/win/fs.c b/src/win/fs.c
index 097b00e0..6e0bdc7b 100644
--- a/src/win/fs.c
+++ b/src/win/fs.c
@@ -245,6 +245,7 @@ INLINE static void uv_fs_req_init(uv_loop_t* loop, uv_fs_t* req,
   req->ptr = NULL;
   req->path = NULL;
   req->cb = cb;
+  req->fs.info.bufs = NULL;
   memset(&req->fs, 0, sizeof(req->fs));
 }