linux-stable/arch/x86/kernel/kprobes
Masami Hiramatsu 45c23bf4d1 x86,kprobes: Fix optprobe trampoline to generate complete pt_regs
Currently the optprobe trampoline template code ganerate an
almost complete pt_regs on-stack, everything except regs->ss.
The 'regs->ss' points to the top of stack, which is not a
valid segment decriptor.

As same as the rethook does, complete the job by also pushing ss.

Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/164826166027.2455864.14759128090648961900.stgit@devnote2
2022-03-28 19:38:51 -07:00
..
common.h x86,rethook,kprobes: Replace kretprobe with rethook on x86 2022-03-28 19:38:51 -07:00
core.c x86,rethook,kprobes: Replace kretprobe with rethook on x86 2022-03-28 19:38:51 -07:00
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