diff options
| author |   Kees Cook <keescook@chromium.org> | 2018-01-10 14:22:38 -0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-01-15 12:07:44 -0800 |
| commit | b394d468e7d75637e682a9be4a1181b27186c593 (patch) | |
| tree | 1c0894b3aafc06a4ee6bfc6facc81d192781de66 /include/linux/uaccess.h | |
| parent | usercopy: Remove pointer from overflow report (diff) | |
| download | wireguard-linux-b394d468e7d75637e682a9be4a1181b27186c593.tar.xz wireguard-linux-b394d468e7d75637e682a9be4a1181b27186c593.zip | |
usercopy: Enhance and rename report_usercopy()
In preparation for refactoring the usercopy checks to pass offset to
the hardened usercopy report, this renames report_usercopy() to the
more accurate usercopy_abort(), marks it as noreturn because it is,
adds a hopefully helpful comment for anyone investigating such reports,
makes the function available to the slab allocators, and adds new "detail"
and "offset" arguments.
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/linux/uaccess.h')
| -rw-r--r-- | include/linux/uaccess.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 251e655d407f..38b6442dc569 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -273,4 +273,10 @@ extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count); #define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0) #endif +#ifdef CONFIG_HARDENED_USERCOPY +void __noreturn usercopy_abort(const char *name, const char *detail, + bool to_user, unsigned long offset, + unsigned long len); +#endif + #endif /* __LINUX_UACCESS_H__ */ |