From bf0147da26b7d0a4350deeb1a4c4315c2ea23e65 Mon Sep 17 00:00:00 2001 From: Ilja van Sprundel Date: Thu, 3 Oct 2019 15:39:37 +0200 Subject: [PATCH] clear message structure before filling it in This change clears the message structure before filling it in. This prevents uninitialized stack data from vfs to leak to the other endpoint. --- minix/servers/vfs/request.c | 1 + 1 file changed, 1 insertion(+) diff --git a/minix/servers/vfs/request.c b/minix/servers/vfs/request.c index 19ae609b2..ea00690b1 100644 --- a/minix/servers/vfs/request.c +++ b/minix/servers/vfs/request.c @@ -187,6 +187,7 @@ int req_create( panic("req_create: cpf_grant_direct failed"); /* Fill in request message */ + memset(&m, 0, sizeof(m)); m.m_type = REQ_CREATE; m.m_vfs_fs_create.inode = inode_nr; m.m_vfs_fs_create.mode = omode;