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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-08 14:48:14 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-08 14:48:14 -0700 |
commit | 1eccfa090eaea22558570054bbdc147817e1df5e (patch) | |
tree | a0adfdb87319abef88f575ee34314649193b7e92 /include/linux/slab.h | |
parent | 1bd4403d86a1c06cb6cc9ac87664a0c9d3413d51 (diff) | |
parent | ed18adc1cdd00a5c55a20fbdaed4804660772281 (diff) | |
download | linux-stable-1eccfa090eaea22558570054bbdc147817e1df5e.tar.gz linux-stable-1eccfa090eaea22558570054bbdc147817e1df5e.tar.bz2 linux-stable-1eccfa090eaea22558570054bbdc147817e1df5e.zip |
Merge tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull usercopy protection from Kees Cook:
"Tbhis implements HARDENED_USERCOPY verification of copy_to_user and
copy_from_user bounds checking for most architectures on SLAB and
SLUB"
* tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
mm: SLUB hardened usercopy support
mm: SLAB hardened usercopy support
s390/uaccess: Enable hardened usercopy
sparc/uaccess: Enable hardened usercopy
powerpc/uaccess: Enable hardened usercopy
ia64/uaccess: Enable hardened usercopy
arm64/uaccess: Enable hardened usercopy
ARM: uaccess: Enable hardened usercopy
x86/uaccess: Enable hardened usercopy
mm: Hardened usercopy
mm: Implement stack frame object validation
mm: Add is_migrate_cma_page
Diffstat (limited to 'include/linux/slab.h')
-rw-r--r-- | include/linux/slab.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index 1a4ea551aae5..4293808d8cfb 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -155,6 +155,18 @@ void kfree(const void *); void kzfree(const void *); size_t ksize(const void *); +#ifdef CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR +const char *__check_heap_object(const void *ptr, unsigned long n, + struct page *page); +#else +static inline const char *__check_heap_object(const void *ptr, + unsigned long n, + struct page *page) +{ + return NULL; +} +#endif + /* * Some archs want to perform DMA into kmalloc caches and need a guaranteed * alignment larger than the alignment of a 64-bit integer. |