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Catalin Marinas 676b72e20d arm64: compat Fix siginfo_t -> compat_siginfo_t conversion on big endian ... commit 9d42d48a34 upstream. The native (64-bit) sigval_t union contains sival_int (32-bit) and sival_ptr (64-bit). When a compat application invokes a syscall that takes a sigval_t value (as part of a larger structure, e.g. compat_sys_mq_notify, compat_sys_timer_create), the compat_sigval_t union is converted to the native sigval_t with sival_int overlapping with either the least or the most significant half of sival_ptr, depending on endianness. When the corresponding signal is delivered to a compat application, on big endian the current (compat_uptr_t)sival_ptr cast always returns 0 since sival_int corresponds to the top part of sival_ptr. This patch fixes copy_siginfo_to_user32() so that sival_int is copied to the compat_siginfo_t structure. Reported-by: Bamvor Jian Zhang <bamvor.zhangjian@huawei.com> Tested-by: Bamvor Jian Zhang <bamvor.zhangjian@huawei.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2015-03-06 14:43:31 -08:00
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boot	arm64: dts: Reduce size of virtio block device for foundation model	2013-12-20 16:20:21 +00:00
configs	arm64: defconfig: Expand default enabled features	2014-02-07 17:17:28 +00:00
include	arm64: Fix up /proc/cpuinfo	2015-02-11 14:54:48 +08:00
kernel	arm64: compat Fix siginfo_t -> compat_siginfo_t conversion on big endian	2015-03-06 14:43:31 -08:00
kvm	ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU	2014-10-05 14:52:10 -07:00
lib	arm64: __clear_user: handle exceptions on strb	2014-11-21 09:23:02 -08:00
mm	arm64: mm: Make icache synchronisation logic huge page aware	2014-07-09 11:18:26 -07:00
xen	xen/arm,arm64: enable SWIOTLB_XEN	2013-10-10 13:40:44 +00:00
Kconfig	locking/mutex: Disable optimistic spinning on some architectures	2014-07-28 08:06:03 -07:00
Kconfig.debug	arm64: Remove duplicate DEBUG_STACK_USAGE config	2013-10-02 18:03:26 +01:00
Makefile	arm64: big-endian: add big-endian support to top-level arch Makefile	2013-10-25 15:59:31 +01:00