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From: Nick Alcock <nix@esperi.org.uk>
To: Kris Van Hees <kris.van.hees@oracle.com>
Cc: dtrace@lists.linux.dev, dtrace-devel@oss.oracle.com
Subject: Re: [PATCH 14/20] test: detect strlen corruption of strtab rodata
 and zeros
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Date: Fri, 06 Nov 2026 13:14:04 +0000
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On 6 Nov 2026, Nick Alcock told this:

> On 30 Oct 2026, Kris Van Hees verbalised:
>
>> + * ASSERTION: strlen() must not overwrite the IPv6 lookup table in the
>> + *            rodata block of the strtab map.
>
> ... I'm not surprised you didn't spot this. Who would expect a strlen to
> overwrite anything? But now it works via dt_bpf_probe_read_str, it's
> writing into (a temporary entry in) the strtab as a side-effect, with a
> STRSZ max...

Oh yeah, and

Reviewed-by: Nick Alcock <nix@esperi.org.uk>

-- 
NULL && (void)