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spa: fix potential overrun

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This commit is contained in:
Andy Green 2018-04-16 05:57:18 +08:00
parent 92277ad576
commit 654adaf82a
1 changed files with 7 additions and 6 deletions
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13
lib/roles/http/server/lws-spa.c
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@ -244,12 +244,13 @@ retry_as_first:
n = 0;
if (!s->boundary_real_crlf)
n = 2;
memcpy(s->out + s->pos, s->mime_boundary + n,
s->mp - n);
s->pos += s->mp;
s->mp = 0;
goto retry_as_first;
if (s->mp >= n) {
memcpy(s->out + s->pos,
s->mime_boundary + n, s->mp - n);
s->pos += s->mp;
s->mp = 0;
goto retry_as_first;
}
}
s->out[s->pos++] = *in;