Re: [PATCH] bpf: explicitly memset some bpf info structures declared on the stack
From: Yonghong Song <hidden>
Date: 2020-03-20 18:34:50
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On 3/20/20 9:22 AM, Greg Kroah-Hartman wrote:
Trying to initialize a structure with "= {};" will not always clean out
all padding locations in a structure. So be explicit and call memset to
initialize everything for a number of bpf information structures that
are then copied from userspace, sometimes from smaller memory locations
than the size of the structure.
Reported-by: Daniel Borkmann <daniel@iogearbox.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>Acked-by: Yonghong Song <redacted>