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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-14 09:35:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-09-14 09:35:05 -0700 |
| commit | 77e5bdf9f7b2d20939c8d807f3e68778d6e1557a (patch) | |
| tree | 377970d3aeae627a6a5ff9b78eaa5e8a1feca3cc /arch/mips/include/asm | |
| parent | Merge tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip (diff) | |
| parent | avr32: fix copy_from_user() (diff) | |
| download | linux-dev-77e5bdf9f7b2d20939c8d807f3e68778d6e1557a.tar.xz linux-dev-77e5bdf9f7b2d20939c8d807f3e68778d6e1557a.zip | |
Merge branch 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess fixes from Al Viro:
"Fixes for broken uaccess primitives - mostly lack of proper zeroing
in copy_from_user()/get_user()/__get_user(), but for several
architectures there's more (broken clear_user() on frv and
strncpy_from_user() on hexagon)"
* 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
avr32: fix copy_from_user()
microblaze: fix __get_user()
microblaze: fix copy_from_user()
m32r: fix __get_user()
blackfin: fix copy_from_user()
sparc32: fix copy_from_user()
sh: fix copy_from_user()
sh64: failing __get_user() should zero
score: fix copy_from_user() and friends
score: fix __get_user/get_user
s390: get_user() should zero on failure
ppc32: fix copy_from_user()
parisc: fix copy_from_user()
openrisc: fix copy_from_user()
nios2: fix __get_user()
nios2: copy_from_user() should zero the tail of destination
mn10300: copy_from_user() should zero on access_ok() failure...
mn10300: failing __get_user() and get_user() should zero
mips: copy_from_user() must zero the destination on access_ok() failure
ARC: uaccess: get_user to zero out dest in cause of fault
...
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/uaccess.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h index 11b965f98d95..21a2aaba20d5 100644 --- a/arch/mips/include/asm/uaccess.h +++ b/arch/mips/include/asm/uaccess.h @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/thread_info.h> +#include <linux/string.h> #include <asm/asm-eva.h> /* @@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n); __cu_len = __invoke_copy_from_user(__cu_to, \ __cu_from, \ __cu_len); \ + } else { \ + memset(__cu_to, 0, __cu_len); \ } \ } \ __cu_len; \ |