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/* Shared header for the various taint-CVE-2020-13143.h tests.
"gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c in the
Linux kernel 3.16 through 5.6.13 relies on kstrdup without considering
the possibility of an internal '\0' value, which allows attackers to
trigger an out-of-bounds read, aka CID-15753588bcd4."
Fixed by 15753588bcd4bbffae1cca33c8ced5722477fe1f on linux-5.7.y
in linux-stable. */
// TODO: remove need for this option
/* { dg-additional-options "-fanalyzer-checker=taint" } */
#include <stddef.h>
/* Adapted from include/uapi/asm-generic/posix_types.h */
typedef unsigned int __kernel_size_t;
typedef int __kernel_ssize_t;
/* Adapted from include/linux/types.h */
//typedef __kernel_size_t size_t;
typedef __kernel_ssize_t ssize_t;
/* Adapted from include/linux/kernel.h */
#define container_of(ptr, type, member) ({ \
void *__mptr = (void *)(ptr); \
/* [...snip...] */ \
((type *)(__mptr - offsetof(type, member))); })
/* Adapted from include/linux/configfs.h */
struct config_item {
/* [...snip...] */
};
struct config_group {
struct config_item cg_item;
/* [...snip...] */
};
static inline struct config_group *to_config_group(struct config_item *item)
{
return item ? container_of(item,struct config_group,cg_item) : NULL;
}
#define CONFIGFS_ATTR(_pfx, _name) \
static struct configfs_attribute _pfx##attr_##_name = { \
/* [...snip...] */ \
.store = _pfx##_name##_store, \
}
/* Adapted from include/linux/compiler.h */
#define __force
/* Adapted from include/asm-generic/errno-base.h */
#define ENOMEM 12 /* Out of memory */
/* Adapted from include/linux/types.h */
#define __bitwise__
typedef unsigned __bitwise__ gfp_t;
/* Adapted from include/linux/gfp.h */
#define ___GFP_WAIT 0x10u
#define ___GFP_IO 0x40u
#define ___GFP_FS 0x80u
#define __GFP_WAIT ((__force gfp_t)___GFP_WAIT)
#define __GFP_IO ((__force gfp_t)___GFP_IO)
#define __GFP_FS ((__force gfp_t)___GFP_FS)
#define GFP_KERNEL (__GFP_WAIT | __GFP_IO | __GFP_FS)
/* Adapted from include/linux/compiler_attributes.h */
#define __malloc __attribute__((__malloc__))
/* Adapted from include/linux/string.h */
extern char *kstrdup(const char *s, gfp_t gfp) __malloc;
/* Adapted from drivers/usb/gadget/configfs.c */
struct gadget_info {
struct config_group group;
/* [...snip...] */ \
};
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