On Wed, 17 May 2023 at 15:38, Tomas Vondra <[email protected]> wrote:
>
> Null-terminate the output buffer of LZ4Stream_gets
>
> LZ4Stream_gets did not null-terminate its output buffer. The callers expected
> the buffer to be null-terminated and passed it around to functions such as
> sscanf with unintended consequences.
>
> Author: Georgios Kokolatos <[email protected]>
> Reported-by: Alexander Lakhin <[email protected]>
> Discussion: https://postgr.es/m/[email protected]
>
> Branch
> ------
> master
>
> Details
> -------
> https://git.postgresql.org/pg/commitdiff/3c18d90f8907e53c3021fca13ad046133c480e4d
>
> Modified Files
> --------------
> src/bin/pg_dump/compress_lz4.c | 12 +++++++++++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
Forgive the noise, but how is ptr[ret - 1] = '\0' not overwriting the
last character?

Thom


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