Patch "sparc32: fix copy_from_user()" has been added to the 4.4-stable tree
From: <gregkh@linuxfoundation.org>
Date: 2016-09-22 16:45:19
This is a note to let you know that I've just added the patch titled
sparc32: fix copy_from_user()
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc32-fix-copy_from_user.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let [off-list ref] know about it.
From 917400cecb4b52b5cde5417348322bb9c8272fa6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk> Date: Mon, 22 Aug 2016 00:23:07 -0400 Subject: sparc32: fix copy_from_user() From: Al Viro <viro@zeniv.linux.org.uk> commit 917400cecb4b52b5cde5417348322bb9c8272fa6 upstream. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/sparc/include/asm/uaccess_32.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h@@ -328,8 +328,10 @@ static inline unsigned long copy_from_us { if (n && __access_ok((unsigned long) from, n)) return __copy_user((__force void __user *) to, from, n); - else + else { + memset(to, 0, n); return n; + } } static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)
Patches currently in stable-queue which might be from viro@zeniv.linux.org.uk are queue-4.4/nios2-copy_from_user-should-zero-the-tail-of-destination.patch queue-4.4/ppc32-fix-copy_from_user.patch queue-4.4/m32r-fix-__get_user.patch queue-4.4/microblaze-fix-copy_from_user.patch queue-4.4/cris-buggered-copy_from_user-copy_to_user-clear_user.patch queue-4.4/asm-generic-make-copy_from_user-zero-the-destination-properly.patch queue-4.4/metag-copy_from_user-should-zero-the-destination-on-access_ok-failure.patch queue-4.4/score-fix-__get_user-get_user.patch queue-4.4/parisc-fix-copy_from_user.patch queue-4.4/mips-copy_from_user-must-zero-the-destination-on-access_ok-failure.patch queue-4.4/alpha-fix-copy_from_user.patch queue-4.4/mn10300-failing-__get_user-and-get_user-should-zero.patch queue-4.4/openrisc-fix-copy_from_user.patch queue-4.4/avr32-fix-copy_from_user.patch queue-4.4/ia64-copy_from_user-should-zero-the-destination-on-access_ok-failure.patch queue-4.4/score-fix-copy_from_user-and-friends.patch queue-4.4/sh64-failing-__get_user-should-zero.patch queue-4.4/arc-uaccess-get_user-to-zero-out-dest-in-cause-of-fault.patch queue-4.4/hexagon-fix-strncpy_from_user-error-return.patch queue-4.4/frv-fix-clear_user.patch queue-4.4/fix-minor-infoleak-in-get_user_ex.patch queue-4.4/asm-generic-make-get_user-clear-the-destination-on-errors.patch queue-4.4/sparc32-fix-copy_from_user.patch queue-4.4/mn10300-copy_from_user-should-zero-on-access_ok-failure.patch queue-4.4/s390-get_user-should-zero-on-failure.patch queue-4.4/microblaze-fix-__get_user.patch queue-4.4/blackfin-fix-copy_from_user.patch queue-4.4/fix-iov_iter_fault_in_readable.patch queue-4.4/nios2-fix-__get_user.patch queue-4.4/sh-fix-copy_from_user.patch