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Fix use after free in content-address.cc

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Inspired by https://github.com/NixOS/nix/pull/5599
This commit is contained in:
Alex Shabalin 2021-11-23 16:15:34 +01:00
parent ee5f291709
commit b26cb0c9ac
1 changed files with 4 additions and 2 deletions
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6
src/libstore/content-address.cc
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@ -120,8 +120,10 @@ ContentAddress parseContentAddress(std::string_view rawCa) {
ContentAddressMethod parseContentAddressMethod(std::string_view caMethod) ContentAddressMethod parseContentAddressMethod(std::string_view caMethod)
{ {
std::string_view asPrefix {std::string{caMethod} + ":"}; std::string asPrefix = std::string{caMethod} + ":";
return parseContentAddressMethodPrefix(asPrefix); // parseContentAddressMethodPrefix takes its argument by reference
std::string_view asPrefixView = asPrefix;
return parseContentAddressMethodPrefix(asPrefixView);
} }
std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt) std::optional<ContentAddress> parseContentAddressOpt(std::string_view rawCaOpt)