Junio C Hamano <gitster@xxxxxxxxx> writes:
> Bence Ferdinandy <bence@xxxxxxxxxxxxxx> writes:
>
>> +static void report_auto(const char *remote, const char *head_name,
>> + struct strbuf *buf_prev) {
>> + struct strbuf buf_prefix = STRBUF_INIT;
>> + const char *prev_head;
>
> I think we need to initialize prev_head to NULL.
>
>> + strbuf_addf(&buf_prefix, "refs/remotes/%s/", remote);
>> + skip_prefix(buf_prev->buf, buf_prefix.buf, &prev_head);
>
> If the symref was not pointing into the "refs/remotes/<remote>/"
> hierarchy previously, skip_prefix() comes back without touching
> prev_head (i.e. not starting with the prefix does not clear it).
The two uninitialized prev_head were also noticed by compilers in
multiple jobs at GitHub CI.
https://github.com/git/git/actions/runs/11265515664
