libvfio-user-alloca.patch

   1 --- qemu-7.2.10/subprojects/libvfio-user/samples/client.c.orig  2024-04-04 06:27:19.254657097 +0200
   2 +++ qemu-7.2.10/subprojects/libvfio-user/samples/client.c       2024-04-04 16:55:35.883734463 +0200
   3 @@ -310,7 +310,10 @@ get_device_region_info(int sock, uint32_
   4      size_t nr_fds = ARRAY_SIZE(fds);
   5
   6
   7 -    region_info = alloca(size);
   8 +    region_info = malloc(size);
   9 +    if (region_info == NULL) {
  10 +        err(EXIT_FAILURE, "%m\n");
  11 +    }
  12      memset(region_info, 0, size);
  13      region_info->argsz = size;
  14      region_info->index = index;
  15 @@ -318,7 +321,11 @@ get_device_region_info(int sock, uint32_
  16      do_get_device_region_info(sock, region_info, NULL, 0);
  17      if (region_info->argsz > size) {
  18          size = region_info->argsz;
  19 -        region_info = alloca(size);
  20 +        free(region_info);
  21 +        region_info = malloc(size);
  22 +        if (region_info == NULL) {
  23 +            err(EXIT_FAILURE, "%m\n");
  24 +        }
  25          memset(region_info, 0, size);
  26          region_info->argsz = size;
  27          region_info->index = index;
  28 @@ -344,6 +351,7 @@ get_device_region_info(int sock, uint32_
  29              }
  30          }
  31      }
  32 +    free(region_info);
  33  }
  34
  35  static void