Catalin Marinas f7e35c5ba4 arm64: kprobes: Add KASAN instrumentation around stack accesses ... This patch disables KASAN around the memcpy from/to the kernel or IRQ stacks to avoid warnings like below: BUG: KASAN: stack-out-of-bounds in setjmp_pre_handler+0xe4/0x170 at addr ffff800935cbbbc0 Read of size 128 by task swapper/0/1 page:ffff7e0024d72ec0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x1000000000000000() page dumped because: kasan: bad access detected CPU: 4 PID: 1 Comm: swapper/0 Not tainted 4.7.0-rc4+ #1 Hardware name: ARM Juno development board (r0) (DT) Call trace: [<ffff20000808ad88>] dump_backtrace+0x0/0x280 [<ffff20000808b01c>] show_stack+0x14/0x20 [<ffff200008563a64>] dump_stack+0xa4/0xc8 [<ffff20000824a1fc>] kasan_report_error+0x4fc/0x528 [<ffff20000824a5e8>] kasan_report+0x40/0x48 [<ffff20000824948c>] check_memory_region+0x144/0x1a0 [<ffff200008249814>] memcpy+0x34/0x68 [<ffff200008c3ee2c>] setjmp_pre_handler+0xe4/0x170 [<ffff200008c3ec5c>] kprobe_breakpoint_handler+0xec/0x1d8 [<ffff2000080853a4>] brk_handler+0x5c/0xa0 [<ffff2000080813f0>] do_debug_exception+0xa0/0x138 Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2016-07-21 11:47:53 +01:00
..
Makefile	arm64: Add trampoline code for kretprobes	2016-07-19 15:03:22 +01:00
decode-insn.c	arm64: kprobes instruction simulation support	2016-07-19 15:03:21 +01:00
decode-insn.h	arm64: kprobes instruction simulation support	2016-07-19 15:03:21 +01:00
kprobes.c	arm64: kprobes: Add KASAN instrumentation around stack accesses	2016-07-21 11:47:53 +01:00
kprobes_trampoline.S	arm64: Add trampoline code for kretprobes	2016-07-19 15:03:22 +01:00
simulate-insn.c	arm64: kprobes instruction simulation support	2016-07-19 15:03:21 +01:00
simulate-insn.h	arm64: kprobes instruction simulation support	2016-07-19 15:03:21 +01:00