WSL2-Linux-Kernel/arch/x86/hyperv
Kangjie Lu 534c89c22e x86/hyperv: Prevent potential NULL pointer dereference
The page allocation in hv_cpu_init() can fail, but the code does not
have a check for that.

Add a check and return -ENOMEM when the allocation fails.

[ tglx: Massaged changelog ]

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Acked-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: pakki001@umn.edu
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-hyperv@vger.kernel.org
Link: https://lkml.kernel.org/r/20190314054651.1315-1-kjlu@umn.edu
2019-03-21 12:24:39 +01:00
..
Makefile x86/hyperv: Enable PV qspinlock for Hyper-V 2018-10-09 14:21:39 +02:00
hv_apic.c x86/hyperv: Remove unused include 2018-09-27 21:21:00 +02:00
hv_init.c x86/hyperv: Prevent potential NULL pointer dereference 2019-03-21 12:24:39 +01:00
hv_spinlock.c x86/hyperv: Enable PV qspinlock for Hyper-V 2018-10-09 14:21:39 +02:00
mmu.c x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
nested.c x86/hyper-v: Add HvFlushGuestAddressList hypercall support 2018-12-21 11:28:39 +01:00