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Informational 20 Bitcoin

fix(core): remove rsod screens from rtl error handling

Public commit record

What the developer wrote

Authored by cepetr

62/100 · Adequate
fix(core): remove rsod screens from rtl error handling

[no changelog]
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
The short version

What changed, and why it matters

This commit is a code cleanup in the Trezor firmware. It moves special error-screen functions (for wipe code, too many PIN attempts, install restricted, and device wiped) out of the runtime library (RTL) error-handling module and into a new dedicated 'rsod_special' module. It also removes the 'ensure' macro from a public header. The change is architectural refactoring; it does not appear to fix a security bug or introduce a new vulnerability. The commit message and diff give no indication this is a security patch.

Recommended action

No immediate security action required. Treat as normal refactoring. Reviewers may want to verify that all former callers of the moved functions still include the correct header and that the ensure() macro removal does not break any downstream code that relied on it from error_handling.h.

Security signals we found

01

No security-relevant functional change in moved code

02

Removal of ensure() macro from public header may reduce accidental misuse but is not a vulnerability fix

03

Refactoring touches wipe/PIN-restriction/firmware-installation screens, which are security-sensitive flows, but the logic is preserved verbatim

Risk score

Why this scored 20/100

Our methodology →
Potential impact 5/30
Exploitability 0/25
Stealth signal 0/15
Affected reach 5/15
Confidence 7/10
Evidence quality 3/5
Human-validated context

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