Update wire to fix a potential use-after-free#2614
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jrick merged 1 commit intodecred:masterfrom Feb 26, 2026
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MsgTx decoding could result in caller-provided scripts being incorrectly added to the script freelist when decoding errors. These scripts will be reused during later deserializations, overwriting the existing scripts caller previously provided. This is, in other words, the same as a use-after-free violation in languages with manual memory management. wire v1.7.4 provides a mitigation for this issue, as well as other performance improvements and addrv2 message support that dcrwallet will eventually benefit from.
davecgh
approved these changes
Feb 26, 2026
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MsgTx decoding could result in caller-provided scripts being incorrectly added to the script freelist when decoding errors. These scripts will be reused during later deserializations, overwriting the existing scripts caller previously provided. This is, in other words, the same as a use-after-free violation in languages with manual memory management.
wire v1.7.4 provides a mitigation for this issue, as well as other performance improvements and addrv2 message support that dcrwallet will eventually benefit from.