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fix: use checked positions when scanning ZCash notes

Open Bug Sync, scanning & storage

Lead item brave-browser#58283 · opened by iAnonymous3000 · last source update

This issue is open on GitHub. Fixes sometimes land through pull requests that do not link the issue (for example a later refactor); this tracker follows only explicit links (closing references, “Resolves” lines, brave_<issue> branch names, uplifts and the issue timeline).

Issue state

Open

Open.

Implementation

No pull request is linked by closing keywords, GitHub’s closing references, a brave_<issue> branch name or the issue timeline.

Release notes

No platform changelog lists this item.

Validation

QA required (QA/Yes).

No QA pass labels.

QA labels are Brave’s own validation records per OS. They are not independent verification by this tracker.

Target

No milestone set.

Platforms (OS labels): Desktop

Owner: unassigned

Build presence

Whether a merged pull request in this group is an ancestor of the brave-core tag of each platform’s current build (from versions.brave.com). Code presence is not the same as a feature being exposed on that platform.

PlatformReleaseBetaNightly
DesktopUnknown 1.97.59no merged PR is linked, so presence in this build is unknownUnknown 1.98.47no merged PR is linked, so presence in this build is unknownUnknown 1.100.5no merged PR is linked, so presence in this build is unknown
AndroidUnknown 1.97.57no merged PR is linked, so presence in this build is unknownUnknown 1.98.52no merged PR is linked, so presence in this build is unknownUnknown 1.100.5no merged PR is linked, so presence in this build is unknown
iOSUnknown 1.96.62no merged PR is linked, so presence in this build is unknownUnknown 1.99.44no merged PR is linked, so presence in this build is unknownUnknown 1.100.7no merged PR is linked, so presence in this build is unknown

Members and their history

Issue

brave-browser#58283 fix: use checked positions when scanning ZCash notes

State: open · created · updated · discovered via label:feature/web3/wallet/zcash, search:ironwood, search:zcash · matched label:feature/web3/wallet/zcash, title:zcash, body:ironwood

bug priority/P4 QA/Yes release-notes/exclude feature/web3/wallet OS/Desktop feature/web3/wallet/core feature/web3/wallet/zcash

Provider-supplied tree sizes are combined with action offsets without checked arithmetic. Reject ranges that cannot be represented and add boundary coverage before enabling Ironwood. Tracks #56872.

Timeline (5 of 12 events)
  1. 2026-08-19 19:57 Label added priority/P3 by iAnonymous3000
  2. 2026-08-19 19:57 Label added QA/Yes by iAnonymous3000
  3. 2026-08-19 19:57 Label added release-notes/exclude by iAnonymous3000
  4. 2026-08-19 19:57 Label added OS/Desktop by iAnonymous3000
  5. 2026-08-21 00:45 Label added priority/P4 by kdenhartog

Recorded changes

  1. New issue

    New bug report: fix: use checked positions when scanning ZCash notes

    Opened in brave-browser#58283. This is a report or request, not a confirmed change to Brave Wallet.

    brave-browser#58283
    Evidence
    • created 2026-08-19T19:57:39Z

    Source time: · Detected: · Backfilled from source history

    2026-08-19T19:57:39Z