Nadav Amit 8924779df8 x86/kprobes: Fix JNG/JNLE emulation ... When kprobes emulates JNG/JNLE instructions on x86 it uses the wrong condition. For JNG (opcode: 0F 8E), according to Intel SDM, the jump is performed if (ZF == 1 or SF != OF). However the kernel emulation currently uses 'and' instead of 'or'. As a result, setting a kprobe on JNG/JNLE might cause the kernel to behave incorrectly whenever the kprobe is hit. Fix by changing the 'and' to 'or'. Fixes: 6256e668b7 ("x86/kprobes: Use int3 instead of debug trap for single-step") Signed-off-by: Nadav Amit <namit@vmware.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220813225943.143767-1-namit@vmware.com		2022-08-14 11:27:17 +02:00
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common.h	x86,rethook,kprobes: Replace kretprobe with rethook on x86	2022-03-28 19:38:51 -07:00
core.c	x86/kprobes: Fix JNG/JNLE emulation	2022-08-14 11:27:17 +02:00
ftrace.c	ftrace: disable preemption when recursion locked	2021-10-27 11:21:49 -04:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
opt.c	x86,kprobes: Fix optprobe trampoline to generate complete pt_regs	2022-03-28 19:38:51 -07:00