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From: | Vladimir Sementsov-Ogievskiy |
Subject: | Re: [PATCH v2 2/5] nbd/server: Reject embedded NUL in NBD strings |
Date: | Wed, 7 Oct 2020 13:39:51 +0300 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 |
30.09.2020 15:11, Eric Blake wrote:
The NBD spec is clear that any string sent from the client must not contain embedded NUL characters. If the client passes "a\0", we should reject that option request rather than act on "a". Testing this is not possible with a compliant client, but I was able to use gdb to coerce libnbd into temporarily behaving as such a client. Signed-off-by: Eric Blake<eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> -- Best regards, Vladimir
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