tests/qtest: Replace g_memdup() by g_memdup2()

Per https://discourse.gnome.org/t/port-your-module-from-g-memdup-to-g-memdup2-now/5538

  The old API took the size of the memory to duplicate as a guint,
  whereas most memory functions take memory sizes as a gsize. This
  made it easy to accidentally pass a gsize to g_memdup(). For large
  values, that would lead to a silent truncation of the size from 64
  to 32 bits, and result in a heap area being returned which is
  significantly smaller than what the caller expects. This can likely
  be exploited in various modules to cause a heap buffer overflow.

Replace g_memdup() by the safer g_memdup2() wrapper.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210903174510.751630-25-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

1 files changed, 3 insertions, 3 deletions

diff --git a/tests/qtest/libqos/ahci.c b/tests/qtest/libqos/ahci.c
index fba3e7a954..eaa2096512 100644
--- a/tests/qtest/libqos/ahci.c
+++ b/tests/qtest/libqos/ahci.c
@@ -639,8 +639,8 @@ void ahci_exec(AHCIQState *ahci, uint8_t port,
     AHCIOpts *opts;
     uint64_t buffer_in;
 
-    opts = g_memdup((opts_in == NULL ? &default_opts : opts_in),
-                    sizeof(AHCIOpts));
+    opts = g_memdup2((opts_in == NULL ? &default_opts : opts_in),
+                     sizeof(AHCIOpts));
 
     buffer_in = opts->buffer;
 
@@ -860,7 +860,7 @@ AHCICommand *ahci_command_create(uint8_t command_name)
     g_assert(!props->ncq || props->lba48);
 
     /* Defaults and book-keeping */
-    cmd->props = g_memdup(props, sizeof(AHCICommandProp));
+    cmd->props = g_memdup2(props, sizeof(AHCICommandProp));
     cmd->name = command_name;
     cmd->xbytes = props->size;
     cmd->prd_size = 4096;