ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2025-02-22 18:22:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

noux: prevent accessing invalid leaf path in open

Browse Source 
Fixes #3542.
This commit is contained in:
Josef Söntgen 2019-10-24 16:50:50 +02:00 committed by Christian Helmuth
parent c79ebc93a2
commit 60f390ddf8
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
repos/ports/src/noux/syscall.cc
View File

@ -230,6 +230,9 @@ bool Noux::Child::syscall(Noux::Session::Syscall sc)
if (&vfs_handle->ds() == &_root_dir) if (&vfs_handle->ds() == &_root_dir)
leaf_path = _sysio.open_in.path; leaf_path = _sysio.open_in.path;
if (!leaf_path)
break;
Shared_pointer<Io_channel> Shared_pointer<Io_channel>
channel(new (_heap) Vfs_io_channel(_sysio.open_in.path, channel(new (_heap) Vfs_io_channel(_sysio.open_in.path,
leaf_path, leaf_path,