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unpackExtent detects corrupted compression method

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https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=66338&q=label%3AProj-upx
	modified:   p_unix.cpp
This commit is contained in:
John Reiser
2024-05-04 09:40:51 -07:00
parent 811f66de84
commit a831a20910
1 changed files with 1 additions and 1 deletions
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2
src/p_unix.cpp
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@ -481,7 +481,7 @@ unsigned PackUnix::unpackExtent(unsigned wanted, OutputFile *fo,
int const sz_cpr = ph.c_len = get_te32(&hdr.sz_cpr);
ph.filter_cto = hdr.b_cto8;
if (sz_unc == 0) { // must never happen while 0!=wanted
if (sz_unc == 0 || M_LZMA < hdr.b_method) {
throwCantUnpack("corrupt b_info");
break;
}