This is a note to let you know that I've just added the patch titled
alpha: osf_sys.c: fix put_tv32 regression
to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: alpha-osf_sys.c-fix-put_tv32-regression.patch and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 47669fb6b5951d0e09fc99719653e0ac92b50b99 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann arnd@arndb.de Date: Wed, 8 Nov 2017 16:02:13 +0100 Subject: alpha: osf_sys.c: fix put_tv32 regression
From: Arnd Bergmann arnd@arndb.de
commit 47669fb6b5951d0e09fc99719653e0ac92b50b99 upstream.
There was a typo in the new version of put_tv32() that caused an unguarded access of a user space pointer, and failed to return the correct result in gettimeofday(), wait4(), usleep_thread() and old_adjtimex().
This fixes it to give the correct behavior again.
Fixes: 1cc6c4635e9f ("osf_sys.c: switch handling of timeval32/itimerval32 to copy_{to,from}_user()") Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/alpha/kernel/osf_sys.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -964,8 +964,8 @@ static inline long put_tv32(struct timeval32 __user *o, struct timeval *i) { return copy_to_user(o, &(struct timeval32){ - .tv_sec = o->tv_sec, - .tv_usec = o->tv_usec}, + .tv_sec = i->tv_sec, + .tv_usec = i->tv_usec}, sizeof(struct timeval32)); }
Patches currently in stable-queue which might be from arnd@arndb.de are
queue-4.15/kasan-rework-kconfig-settings.patch queue-4.15/mtd-cfi-convert-inline-functions-to-macros.patch queue-4.15/signal-openrisc-fix-do_unaligned_access-to-send-the-proper-signal.patch queue-4.15/media-dvb-frontends-fix-i2c-access-helpers-for-kasan.patch queue-4.15/alpha-osf_sys.c-fix-put_tv32-regression.patch