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fs: validate remaining fd calls from cpp #52051

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fs: validate remaining fd calls from cpp #52051

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a30a15d
fs: validate fd from cpp on `close`
anonrig Mar 12, 2024
71508f7
fs: validate fd from cpp on `fchown`
anonrig Mar 12, 2024
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8 changes: 4 additions & 4 deletions lib/fs.js
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Expand Up @@ -522,7 +522,7 @@ function close(fd, callback = defaultCloseCallback) {

const req = new FSReqCallback();
req.oncomplete = callback;
binding.close(getValidatedFd(fd), req);
binding.close(fd, req);
}

/**
Expand All @@ -531,7 +531,7 @@ function close(fd, callback = defaultCloseCallback) {
* @returns {void}
*/
function closeSync(fd) {
binding.close(getValidatedFd(fd));
binding.close(fd);
}

/**
Expand Down Expand Up @@ -2034,7 +2034,7 @@ function fchown(fd, uid, gid, callback) {

const req = new FSReqCallback();
req.oncomplete = callback;
binding.fchown(getValidatedFd(fd), uid, gid, req);
binding.fchown(fd, uid, gid, req);
}

/**
Expand All @@ -2048,7 +2048,7 @@ function fchownSync(fd, uid, gid) {
validateInteger(uid, 'uid', -1, kMaxUserId);
validateInteger(gid, 'gid', -1, kMaxUserId);

binding.fchown(getValidatedFd(fd), uid, gid);
binding.fchown(fd, uid, gid);
}

/**
Expand Down
12 changes: 8 additions & 4 deletions src/node_file.cc
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Expand Up @@ -981,8 +981,10 @@ void Close(const FunctionCallbackInfo<Value>& args) {
const int argc = args.Length();
CHECK_GE(argc, 1);

CHECK(args[0]->IsInt32());
int fd = args[0].As<Int32>()->Value();
int fd;
if (!GetValidatedFd(env, args[0]).To(&fd)) {
return;
}
env->RemoveUnmanagedFd(fd);

if (argc > 1) { // close(fd, req)
Expand Down Expand Up @@ -2591,8 +2593,10 @@ static void FChown(const FunctionCallbackInfo<Value>& args) {
const int argc = args.Length();
CHECK_GE(argc, 3);

CHECK(args[0]->IsInt32());
const int fd = args[0].As<Int32>()->Value();
int fd;
if (!GetValidatedFd(env, args[0]).To(&fd)) {
return;
}

CHECK(IsSafeJsInt(args[1]));
const uv_uid_t uid = static_cast<uv_uid_t>(args[1].As<Integer>()->Value());
Expand Down