[gs-commits] ghostpdl branch, master, updated. jbig2dec-0.14-1713-g61c4891

The ghostpdl branch, master has been updated
       via  61c489110685f7cab8cbbbca7b15d9b5cb2463d0 (commit)
      from  2d990b065c228802b3913602b4309165e42c08e9 (commit)

----------------------------------------------------------------------
commit 61c489110685f7cab8cbbbca7b15d9b5cb2463d0
Author: Chris Liddell <[email protected]>
Date:   Mon Oct 7 18:41:10 2019 +0100

    Bug 701657: Allocate "memory" device in immovable gc memory
    
    Devices are supposed to be allocated in memory that cannot relocate (i.e.
    non-gc memory or an immovable allocation). The memory device accessible from
    Postscript (makeimagedevice/makewordimagedevice) was being created in regular,
    relocatable gc memory.
    
    This caused an invalid memory access when cleaning up subclassed devices, as the
    one device in the chain may have moved. So switch to using an immovable
    allocation.

diff --git a/base/gsdevmem.c b/base/gsdevmem.c
index 75dd568..07e5a6b 100644
--- a/base/gsdevmem.c
+++ b/base/gsdevmem.c
@@ -223,7 +223,7 @@ gs_makewordimagedevice(gx_device ** pnew_dev, const gs_matrix * pmat,
 {
     int code;
     gx_device_memory *pnew =
-    gs_alloc_struct(mem, gx_device_memory, &st_device_memory,
+    gs_alloc_struct_immovable(mem, gx_device_memory, &st_device_memory,
                     "gs_makeimagedevice(device)");
 
     if (pnew == 0)


Summary of changes:
 base/gsdevmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)