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Fix a bug when getting a gzip header extra field with inflate() (#2471)

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Phuc-Thanh Nguyen 2025-04-28 17:17:58 +08:00 committed by GitHub
parent c4852a7104
commit b15cf9dfa4
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1 changed files with 3 additions and 2 deletions
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5
extern/zlib/inflate.c vendored
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@ -758,9 +758,10 @@ int flush;
copy = state->length; copy = state->length;
if (copy > have) copy = have; if (copy > have) copy = have;
if (copy) { if (copy) {
len = state->head->extra_len - state->length;
if (state->head != Z_NULL && if (state->head != Z_NULL &&
state->head->extra != Z_NULL) { state->head->extra != Z_NULL &&
len = state->head->extra_len - state->length; len < state->head->extra_max) {
zmemcpy(state->head->extra + len, next, zmemcpy(state->head->extra + len, next,
len + copy > state->head->extra_max ? len + copy > state->head->extra_max ?
state->head->extra_max - len : copy); state->head->extra_max - len : copy);