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Merge pull request #4008 from aszlig/fix-ub-in-reading-ca-map

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Fix unspecified behaviour in readStorePathCAMap
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Eelco Dolstra 2020-09-14 13:18:52 +02:00 committed by GitHub
parent 7cb5f643a6 525b38eee8
commit 8ebd10664e
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1 changed files with 5 additions and 2 deletions
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7
src/libstore/remote-store.cc
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@ -43,8 +43,11 @@ StorePathCAMap readStorePathCAMap(const Store & store, Source & from)
{ {
StorePathCAMap paths; StorePathCAMap paths;
auto count = readNum<size_t>(from); auto count = readNum<size_t>(from);
while (count--) while (count--) {
paths.insert_or_assign(store.parseStorePath(readString(from)), parseContentAddressOpt(readString(from))); auto path = store.parseStorePath(readString(from));
auto ca = parseContentAddressOpt(readString(from));
paths.insert_or_assign(path, ca);
}
return paths; return paths;
} }