e09b81638b
f51665bee7psbt: validate pubkeys in MuSig2 pubnonce/partial sig deserialization (tboy1337) Pull request description: The previous fix for invalid MuSig2 pubkeys (bitcoin/bitcoin#34010) only addressed the PSBT_IN_MUSIG2_PARTICIPANT_PUBKEYS field. However, the PSBT_IN_MUSIG2_PUB_NONCE and PSBT_IN_MUSIG2_PARTIAL_SIG fields also deserialize pubkeys without validation, which could lead to crashes when invalid pubkeys are processed. This commit adds validation to the DeserializeMuSig2ParticipantDataIdentifier function to ensure all pubkeys in MuSig2 pubnonce and partial signature fields are fully valid elliptic curve points. The fix: - Validates both aggregate and participant pubkeys in MuSig2 pubnonce and partial signature deserialization - Throws std::ios_base::failure with descriptive error messages for invalid pubkeys - Prevents potential crashes from invalid elliptic curve points - Maintains backward compatibility for valid PSBTs This completes the fix for issues [#33999](https://github.com/bitcoin/bitcoin/issues/33999) and [#34201](https://github.com/bitcoin/bitcoin/issues/34201). ACKs for top commit: rkrux: lgtm ACKf51665bee7w0xlt: ACKf51665bee7darosior: utACKf51665bee7Tree-SHA512: 8454d77a05aa003a3121b0a5975e8a000125ee0d62343bfa625a75db113358ba7a210ae0376ca1666957b7de7005e06e5a54c95170430ee5e9e1416719b8af53
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
What is Bitcoin Core?
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.
Further information about Bitcoin Core is available in the doc folder.
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