On Fri, May 05, 2023 at 01:04:14PM +0100, Jiaxun Yang wrote:
2023年5月4日 20:40，Sasha Levin <sashal@xxxxxxxxxx> 写道：
From: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
[ Upstream commit bbefef2f07080cd502a93cb1c529e1c8a6c4ac8e ]
For DADDI errata we just workaround by disable immediate operation
for BPF_ADD / BPF_SUB to avoid generation of DADDIU.
All other use cases in JIT won't cause overflow thus they are all safe.
Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
Acked-by: Johan Almbladh <johan.almbladh@xxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/bpf/20230228113305.83751-2-jiaxun.yang@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
Hi Sasha,
I think this patch should count as a functional improvement instead of regression fix.
Please drop it from stable queue.
Dropped, thanks!
--
Thanks,
Sasha
