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List:       linux-keyrings
Subject:    Re: Null pointer dereference in public key verification (related to SM2 introduction)
From:       David Howells <dhowells () redhat ! com>
Date:       2020-11-30 9:09:47
Message-ID: 3092220.1606727387 () warthog ! procyon ! org ! uk
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Tobias Markus <tobias@markus-regensburg.de> wrote:

> kernel: RIP: 0010:public_key_verify_signature+0x189/0x3f0

Is it possible for you to provide a disassembly of this function from the
kernel you were using?  For this to occur on that line, it appears that sig
would need to be NULL - but that should trip an assertion at the top of the
function - or a very small number (which could be RCX, R09 or R11).

Thanks,
David

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