[libvirt] [PATCH] Fix logging buffer overrun read

Jim Meyering jim at meyering.net
Fri Sep 4 09:37:09 UTC 2009


Daniel P. Berrange wrote:
> * src/logging.c: Fix buffer offset in logging read
> ---
>  src/logging.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/src/logging.c b/src/logging.c
> index e46e2be..07c2b0e 100644
> --- a/src/logging.c
> +++ b/src/logging.c
> @@ -240,7 +240,7 @@ static void virLogStr(const char *str, int len) {
>          tmp = LOG_BUFFER_SIZE - virLogEnd;
>          memcpy(&virLogBuffer[virLogEnd], str, tmp);
>          virLogBuffer[LOG_BUFFER_SIZE] = 0;
> -        memcpy(&virLogBuffer[0], &str[len], len - tmp);
> +        memcpy(&virLogBuffer[0], &str[tmp], len - tmp);

Ack.  Definitely.

valgrind?




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