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Re: [PATCH 1/2] backends/dbus-vmstate: Fix short read error handling
From: |
Laurent Vivier |
Subject: |
Re: [PATCH 1/2] backends/dbus-vmstate: Fix short read error handling |
Date: |
Tue, 9 Mar 2021 21:41:28 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 |
Le 26/01/2021 à 13:42, Markus Armbruster a écrit :
> When dbus_vmstate_post_load() fails, it complains to stderr. Except
> on short read, where it checks with g_return_val_if_fail(). This
> fails silently if G_DISABLE_CHECKS is undefined (it should be), or
> else pads the short read with uninitialized bytes.
>
> Replace g_return_val_if_fail() by a proper error check.
>
> Fixes: 5010cec2bc87dafab39b3913c8ca91f88df9c540
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
> backends/dbus-vmstate.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/backends/dbus-vmstate.c b/backends/dbus-vmstate.c
> index bd050e8e9c..2a0d2e4a31 100644
> --- a/backends/dbus-vmstate.c
> +++ b/backends/dbus-vmstate.c
> @@ -229,7 +229,10 @@ static int dbus_vmstate_post_load(void *opaque, int
> version_id)
> &bytes_read, NULL, &err)) {
> goto error;
> }
> - g_return_val_if_fail(bytes_read == len, -1);
> + if (bytes_read != len) {
> + error_report("%s: Short read", __func__);
> + return -1;
> + }
> id[len] = 0;
>
> trace_dbus_vmstate_loading(id);
>
Applied to my trivial-patches branch.
Thanks,
Laurent
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