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coverity 472861: http2: deal with zero length data without overflow

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This commit is contained in:
Andy Green 2025-01-16 11:40:26 +00:00
parent ff0e0f3c35
commit 7333fcc9cd
1 changed files with 7 additions and 5 deletions
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12
lib/roles/h2/http2.c
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@ -2322,12 +2322,14 @@ lws_h2_parser(struct lws *wsi, unsigned char *in, lws_filepos_t _inlen,
(unsigned int)h2n->count,
(unsigned int)h2n->length);
in += (unsigned int)n - 1;
h2n->inside += (unsigned int)n;
h2n->count += (unsigned int)n - 1;
if (n) {
in += (unsigned int)n - 1;
h2n->inside += (unsigned int)n;
h2n->count += (unsigned int)n - 1;
h2n->swsi->txc.peer_tx_cr_est -= n;
wsi->txc.peer_tx_cr_est -= n;
h2n->swsi->txc.peer_tx_cr_est -= n;
wsi->txc.peer_tx_cr_est -= n;
}
do_windows: