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Trezor firmware

Firmware monorepo for Trezor One, Model T, and Safe devices.

BitcoinHardware walletsNormal
Repository coverage

2661 commits in the local evidence base

Every captured commit receives deterministic security triage and a separate communication-quality score. Security candidates and broader second-pass signals receive full-patch Ollama analysis.

916security candidates311second-pass queue2654AI analyses
336commits · 30 days
588commits · 60 days
1363commits · 180 days
2648commits · 365 days
Backfill bands
Aug 5 → Feb 61298 seen115 candidatesComplete
Feb 6 → Jun 6775 seen58 candidatesComplete
Jun 6 → Jul 6217 seen13 candidatesComplete
Jul 6 → Aug 5360 seen54 candidatesComplete
Commit communication

Does the history explain itself?

Message quality measures whether a commit identifies its scope, purpose, rationale, testing, and supporting references. It does not change the security-severity score.

66/100 average clarity
473Strong · 80–100
1321Adequate · 60–79
862Thin · 40–59
5Opaque · 0–39
Read the scoring rubric →
Developer activity

Who is changing the project?

Public Git author strings; identities are not independently verified.

DeveloperCommitsCandidatesAnalyzedHigh riskMessage avg.
tychovrahe292104292461
Roman Zeyde572177570271
PrisionMike945994273
Andrew Kozlik712470265
obrusvit21376213164
Jakub Janků22919182
Martin Pastyřík23823173
cepetr19682196059
Ioan Bizău23076230059
M1nd3r20671206071
Lukas Bielesch846784067
Martin Milata17446174063
Analysis record

Published AI watches

Last scanned 34 minutes ago

Informational 18 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(core): remove sha1 from regular FW

This commit removes the SHA-1 hashing function from the regular Trezor firmware. SHA-1 is an old, weak hash algorithm that is no longer considered secure for sensitive uses. The change deletes the code that exposes SHA-1 to apps running on…

Removal of a deprecated cryptographic primitive (SHA-1) from the firmware API surfaceReduction of attack surface and prevention of future misuse of a collision-vulnerable hashNo direct vulnerability patch or memory-safety bug is present in the diff
16d15774by M1nd3r+0−2006 files
No security note in commit
Low 27 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): pass static public key to `noise_xxpsk3_*_init()`

This commit changes how a cryptographic library sets up secure connections. Previously, the code automatically calculated the public key from the private key. Now, the caller must provide the public key directly. This is a code-quality ref…

Cryptographic key handling changed: public key is now supplied rather than derivedPotential reduction of key-mismatch risk if caller provides correct public keyNew null-pointer check added for static_public_key
1b3128a4by Ondřej Vejpustek+20−92 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): change order of parameters

This commit simply reorders the arguments of an internal function called dh() and updates every place that calls it. The actual math and security behavior are unchanged; it is a code cleanup with no security effect.

33a119eeby Ondřej Vejpustek+15−151 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): prefix enums

This commit simply renames two groups of internal status labels (called enums) in the Trezor firmware's cryptographic code. The old names like WAITING_FOR_REQUEST1 were shared between two different parts of the code, so the developer gave …

f1c74046by Ondřej Vejpustek+26−222 files
No security note in commit
Low 37 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(crypto): prevent calling `memzero(NULL, ...)`

This commit fixes three places in the Trezor firmware's cryptographic code where a memory-clearing function could be called with a NULL pointer. In practice, passing NULL to memzero is harmless on Trezor's platform (it does nothing), but i…

NULL pointer passed to memory-zeroing helper in cryptographic codeUndefined behavior in C standard library contractDefensive hardening in Noise protocol implementation
0394e934by Ondřej Vejpustek+11−51 file
No security note in commit
Informational 18 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(crypto): return remote static key from `noise_xxpsk3_*_handle_*()`

This commit is a code cleanup (refactor) for the cryptographic handshake code used in Trezor devices. It changes how the other party's long-term public key is returned to the caller: instead of storing it inside an internal state structure…

Removal of long-term public key storage from internal handshake stateCaller-supplied output buffer for remote static public key reduces internal secret retentionError-path memzero of returned key material on failure
3ead1aa6by Ondřej Vejpustek+79−423 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ProjectProfile to ProjectConfig

This commit is a simple rename from 'ProjectProfile' to 'ProjectConfig' in two Rust source files. It only changes variable names, struct names, and error messages. There is no change to program logic, security behavior, or how data is hand…

581b37bcby cepetr+18−182 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce ResolvedBuildArgs

This commit is a straightforward internal code refactor in Trezor's build tooling. It introduces a new ResolvedBuildArgs structure that centralizes default values for command-line build options before they are used. There is no change to u…

c24d1be8by cepetr+99−295 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): make build args tristate

This commit is a straightforward internal refactor of the Trezor firmware build tool's command-line argument handling. It changes many on/off flags from plain booleans to optional booleans so they can explicitly be set to true, false, or l…

271e249aby cepetr+57−561 file
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): introduce build options

This commit is a straightforward internal code reorganization in Trezor's build tooling. It moves build-option definitions from one Rust source file to a new module and adds the ability to load those options from a configuration file. Ther…

75085e2aby cepetr+275−2007 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce build presets

This commit is a developer tooling change for the Trezor firmware build system. It introduces 'build presets'—named configuration bundles stored in TOML files—so developers can select common build settings with a single command-line flag i…

eefe8f7fby cepetr+397−419 files
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): upgrade manifest.yaml for tf-tools 0.3.0

This commit is a routine update to a build-system manifest file used by Trezor's internal tooling. It reorganizes and re-labels feature flags (for example, moving options between 'Features', 'Debugging', and 'Signing' groups and simplifyin…

57b28b89by cepetr+86−1351 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(core): add tf-tools 0.3.1+ configuration file

This commit adds a single configuration file for a Trezor developer tool (a VS Code extension). It only points the tool to existing folders in the repository and contains no executable code, no secrets, and no changes to firmware behavior.…

e554f618by cepetr+8−01 file
No security note in commit
Informational 15 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): rename ResolvedBuild to ResolvedBuildFeatures

This commit is a simple internal code cleanup: it renames a Rust data structure called ResolvedBuild to ResolvedBuildFeatures and updates the places that use it. There are no functional changes, no security fixes, and no changes to how the…

aaa2780bby cepetr+5−52 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

fix(core): fix up clippy warnings in storage.rs

This is a tiny code cleanup commit that replaces two calls to `ptr::null()` with Rust's `unwrap_or_default()` to silence automated Clippy lint warnings. It does not change what value is produced (still a null pointer when no salt is provid…

62354461by cepetr+2−21 file
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

refactor(xtask): simplify dependencies

This commit is a straightforward internal code cleanup in Trezor's build tooling. It moves a data structure and two helper methods from one Rust source file to another and updates callers accordingly. There is no change to user-facing beha…

6268349fby cepetr+9−193 files
No security note in commit
Informational 15 AI analysisMessage 47 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

docs: add xtask documentation

This commit only adds documentation. It updates the table of contents and adds a new markdown page plus a diagram explaining the project's 'xtask' build helper. No code, build scripts, or firmware logic was changed, so it cannot introduce …

4879dababy cepetr+296−03 files
No security note in commit
Informational 17 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

feat(xtask): introduce project-toml build-options

This commit is a build-system refactoring for Trezor firmware. It moves the mapping of command-line build options to Rust/cargo features out of hard-coded Rust logic and into per-project TOML files. It also adds a small change so debug bui…

Build-option mapping now lives in project.toml files, increasing the attack surface for supply-chain/build-configuration tamperingMakefile change automatically enables debug-link for PYOPT=0 debug buildsValidation added to reject storage_insecure_testing_mode in production builds
d44de007by cepetr+681−40817 files
No security note in commit
Informational 15 AI analysisMessage 57 · Thin
TZ TrezorTrezor firmware BitcoinHardware wallets

ci(core): fix nightly ARM emulator filename

This commit fixes a filename-renaming step in the project's automated nightly build pipeline. It ensures ARM64 emulator files get the correct name expected by another testing tool. There is no change to the actual Trezor firmware code, dev…

ab95f08fby Martin Milata+3−01 file
No security note in commit
Informational 12 AI analysisMessage 62 · Adequate
TZ TrezorTrezor firmware BitcoinHardware wallets

chore(vendor): avoid micropython submodule noise in git status

This is a routine housekeeping change to reduce clutter in Git's status output for a third-party component (the MicroPython submodule). There is no indication it changes any code that runs on the Trezor device or affects security.

06cab32bby Martin Milata+1−11 file
No security note in commit
Repository ledger

Explore captured commits

Expand any commit for its author, full message, clarity score, changed files, triage signals, analysis, and source link.

AI review queuedchore(ethereum): update erc-4626 stringsby PrisionMike · 290b0b0f · Apr 22, 2026 · 6 filesMessage 57 · ThinInformational 15Details
Commit message · PrisionMike

chore(ethereum): update erc-4626 strings

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
signing or wallet pathsecond-pass: security-sensitive path
AI analysis · Informational 15/100

This commit only changes user-facing text strings and their translation metadata for Ethereum vault (ERC-4626) screens. It adds labels like 'Redeem', 'Claim to', 'Withdraw amount', and removes unused strings like 'Your address'. There is no code logic change, no security fix, and no vulnerability introduced.

Lower-prioritychore(vendor): update libtropic to v3.2.1by M1nd3r · e8358c33 · Apr 22, 2026 · 1 fileMessage 57 · ThinInformational 2Details
Commit message · M1nd3r

chore(vendor): update libtropic to v3.2.1

- Updated from v3.1.0.

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 2/100

This commit updates a bundled third-party library called libtropic from version 3.1.0 to version 3.2.1 inside the Trezor firmware repository. The actual code changes are not visible because only a submodule pointer was changed (one line modified in the vendor/libtropic path). There is no information in the commit itself saying this fixes a security problem, and no independent references were provided. On its own, this looks like a routine maintenance update.

Lower-priorityrefactor(core): scope menu details' layoutby Roman Zeyde · 5c7b29df · Apr 22, 2026 · 1 fileMessage 72 · AdequateInformational 12Details
Commit message · Roman Zeyde

refactor(core): scope menu details' layout

Also rename `Details.factory` to `_interact`.

[no changelog]

72/100 · AdequateMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
AI analysis · Informational 12/100

This is a small internal code cleanup in the Trezor firmware's user interface code. It renames a variable and ensures a temporary layout object is properly cleaned up after use. There is no indication this fixes a security vulnerability or introduces one.

Lower-priorityrefactor(core): scope `select_menu` layoutsby Roman Zeyde · 58c8a131 · Apr 22, 2026 · 1 fileMessage 88 · StrongInformational 11Details
Commit message · Roman Zeyde

refactor(core): scope `select_menu` layouts

May be related to the following OOM:
https://github.com/trezor/trezor-firmware/actions/runs/24751684853/job/72416000050

[no changelog]

88/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
AI analysis · Informational 11/100

This is a tiny code cleanup that wraps a UI menu layout call in a Python `with` statement so the object is automatically cleaned up after use. The commit message suggests it may help prevent an out-of-memory (OOM) crash during automated tests, but it does not describe a security vulnerability and no exploit path is visible.

Security candidaterefactor(core): scope payment request text confirmation layoutsby Roman Zeyde · da4becf3 · Apr 22, 2026 · 4 filesMessage 93 · StrongInformational 18Details
Commit message · Roman Zeyde

refactor(core): scope payment request text confirmation layouts

May be related to the following OOM:
https://github.com/trezor/trezor-firmware/actions/runs/24751684853/job/72416000050

[no changelog]

93/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
Why it was queued
cryptography-sensitive path
AI analysis · Informational 18/100

This commit is a small code cleanup in the Trezor hardware wallet's user-interface code. It changes how on-screen payment-request confirmation dialogs are created and destroyed, wrapping them in a 'with' block so they are cleaned up promptly. The developer notes this may be related to an out-of-memory (OOM) issue seen in automated tests, but the commit does not claim to fix a security vulnerability and no independent security references are provided.

Lower-priorityrefactor(core): rust logging connectorby Martin Milata · 2c4b2b56 · Apr 22, 2026 · 7 filesMessage 57 · ThinInformational 15Details
Commit message · Martin Milata

refactor(core): rust logging connector

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit is a straightforward internal refactoring that adds a new Rust logging bridge. It does not change any security-critical behavior: logging is already disabled in release builds, and the new code is only compiled into debug builds. There is no indication this fixes or introduces a security vulnerability.

Lower-priorityfix(core): log sources without null terminationby Martin Milata · e8007760 · Apr 22, 2026 · 2 filesMessage 57 · ThinInformational 16Details
Commit message · Martin Milata

fix(core): log sources without null termination

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 16/100

This commit fixes a logging bug in Trezor firmware's debug console output. Previously, the code used a width specifier to print a log source name, which could read past the end of a string that isn't null-terminated. The fix switches to a precision specifier that respects the known length. This is a defensive correctness fix in debug-only logging code; there is no direct evidence it is exploitable as a security vulnerability.

Lower-prioritybuild: bump protobuf versionby Martin Milata · 498124d7 · Apr 21, 2026 · 3 filesMessage 47 · ThinInformational 15Details
Commit message · Martin Milata

build: bump protobuf version

47/100 · ThinMessage clarity
✓ Descriptive subject✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit simply updates the project's protobuf dependency from an old version (3.19) to a newer one (6.32) and pins the Python package version to match. There are no code changes, no bug fixes, and no security patches visible in the diff. It is a routine build/dependency maintenance change.

Security candidatechore(rust/trezor-client): update generated filesby Martin Milata · 9687d464 · Apr 21, 2026 · 27 filesMessage 57 · ThinInformational 15Details
Commit message · Martin Milata

chore(rust/trezor-client): update generated files

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
cryptography-sensitive pathboot or update pathauthentication path
AI analysis · Informational 15/100

This commit only regenerates Rust source files from protobuf definitions using a newer version of the protoc compiler (31.1 instead of 3.19.6). The only visible changes are updated version comments and a few reordered bytes inside generated metadata. There is no change to message logic, security behavior, or how the Trezor device handles data.

Lower-prioritychore(ci): automate "Needs QA" statusby M1nd3r · 59d56418 · Apr 21, 2026 · 1 fileMessage 80 · StrongInformational 15Details
Commit message · M1nd3r

chore(ci): automate "Needs QA" status

- Closed PRs (without merge) moved directly to "Done (no QA)" state.
- Merged PRs with "no-QA" label moved to "Done (no QA)" state.
- Merged PRs without "no-QA" label moved to "Needs QA" state.

80/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context
Why it was queued
documentation-only discount
AI analysis · Informational 15/100

This commit adds a GitHub Actions bot that automatically moves closed pull requests to the correct column on a project board. It is purely a workflow automation change for project management and has nothing to do with the Trezor firmware code, device security, or user funds.

Lower-priorityfix(core): fix NFC IRQ - mpu reconfigby tychovrahe · 94009d38 · Apr 21, 2026 · 1 fileMessage 57 · ThinLow 41Details
Commit message · tychovrahe

fix(core): fix NFC IRQ - mpu reconfig

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Low 41/100

This commit adds memory-protection reconfiguration around the NFC interrupt handler in Trezor hardware wallets. The change ensures the interrupt handler runs with default memory permissions, then restores the previous protection state afterward. It is a hardening fix rather than a clear-cut patch for an actively exploitable vulnerability, but missing MPU setup in an interrupt handler could theoretically allow memory-access bugs or privilege issues during NFC operations.

Lower-priorityrefactor(core): improve NFC driver for better compatibility across various ST chipsby tychovrahe · c46fa9b9 · Apr 21, 2026 · 1 fileMessage 62 · AdequateInformational 16Details
Commit message · tychovrahe

refactor(core): improve NFC driver for better compatibility across various ST chips

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 16/100

This commit renames an NFC driver to be chip-agnostic and reorders its startup steps so the interrupt line is configured before the NFC controller is initialized, then cleared again after. It also swaps a flag-clearing macro for a more correct interrupt-clearing macro. These are defensive housekeeping changes that reduce the chance of a stale interrupt firing at the wrong moment during startup. There is no direct evidence this fixes an exploitable security bug.

Lower-priorityfix(core/prodtest): handle return values in NFC testby tychovrahe · 51fa7248 · Apr 21, 2026 · 1 fileMessage 72 · AdequateInformational 19Details
Commit message · tychovrahe

fix(core/prodtest): handle return values in NFC test

[no changelog]

72/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Mentions testing or verification! No meaningful explanatory body
AI analysis · Informational 19/100

This commit fixes a small coding issue in Trezor's factory production-test tool for NFC hardware. Previously, two NFC setup functions were called without checking whether they succeeded. Now the code checks their return values and reports a fatal error if they fail, then jumps to cleanup. This is a defensive quality improvement in a diagnostic/testing utility, not a fix for an exploitable security vulnerability in the wallet firmware itself.

AI review queuedrefactor(core): refactor NFC driver to allow easier support for different ST chipsby tychovrahe · e0132169 · Apr 21, 2026 · 76 filesMessage 62 · AdequateInformational 15Details
Commit message · tychovrahe

refactor(core): refactor NFC driver to allow easier support for different ST chips

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
second-pass: unusually broad change
AI analysis · Informational 15/100

This commit is a large code reorganization of the NFC (Near Field Communication) driver inside Trezor firmware. It moves the ST25R3916 RFAL library from one directory to another and updates build paths and board configuration files accordingly. There is no indication in the commit message or diff that this fixes a security vulnerability; it is described as a refactoring to make it easier to support different STMicroelectronics chips in the future. The change is mostly a directory rename plus path updates, with no functional security fix visible in the diff.

Security candidatefeat(core): allow disabling button on Eckhart `show_info()` layoutby Roman Zeyde · 3a5a51bc · Apr 21, 2026 · 10 filesMessage 77 · AdequateInformational 19Details
Commit message · Roman Zeyde

feat(core): allow disabling button on Eckhart `show_info()` layout

It will be used for N4W1 I/O layouts.

[no changelog]

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
cryptography-sensitive pathboot or update path
AI analysis · Informational 19/100

This commit is a routine user-interface feature change for Trezor hardware wallets. It lets the new 'Eckhart' screen layout optionally show an information screen with a disabled button (for example, a grayed-out 'Continue' that becomes active only after a timer or condition). Older layouts keep their previous behavior. There is no direct evidence in the commit that this fixes a security vulnerability; it reads as a product/usability feature.

Security candidatefeat(core): allow external menu on Eckhart `show_info()` layoutby Roman Zeyde · bdf29e95 · Apr 21, 2026 · 7 filesMessage 77 · AdequateInformational 15Details
Commit message · Roman Zeyde

feat(core): allow external menu on Eckhart `show_info()` layout

It will be used for N4W1 I/O layouts.

[no changelog]

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
cryptography-sensitive pathboot or update path
AI analysis · Informational 15/100

This commit is a routine user-interface feature addition for the Trezor hardware wallet firmware. It adds an optional 'external menu' flag to the 'show_info' screen layout, primarily for a new device design (Eckhart/N4W1). On older layouts, the flag is rejected with a 'not implemented' error. There is no security-relevant change visible in the code.

Security candidaterefactor(core): scope `LayoutObj` lifetime at `request_word()`by Roman Zeyde · 8bed6e1e · Apr 20, 2026 · 4 filesMessage 77 · AdequateInformational 12Details
Commit message · Roman Zeyde

refactor(core): scope `LayoutObj` lifetime at `request_word()`

Previously it was done using an explicit call to `LayoutObj.__del__()`.

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
Why it was queued
cryptography-sensitive path
AI analysis · Informational 12/100

This commit is a small code cleanup in the Trezor hardware wallet firmware. It changes how on-screen keyboards are managed during wallet recovery (when users type in their backup seed words). Previously, the code explicitly called a destructor-like method `keyboard.__del__()` inside a try/finally block to ensure cleanup. Now it uses Python's `with keyboard:` context manager, which is a more standard and safer way to guarantee cleanup happens. There is no direct evidence this fixes a security vulnerability.

Security candidatefix(core): scope `trezorui_api.confirm_with_info()` layoutsby Roman Zeyde · cd778a4a · Apr 20, 2026 · 5 filesMessage 100 · StrongModerate 60Details
Commit message · Roman Zeyde

fix(core): scope `trezorui_api.confirm_with_info()` layouts

Fixes #6780 (OOM on T3T1 during large input data confirmation).

Explicitly drop internal Rust layout object, in order to avoid
https://github.com/trezor/trezor-firmware/issues/5472#issuecomment-3262594686

100/100 · StrongMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Explains rationale or failure mode✓ Links an issue, advisory, or supporting reference
Why it was queued
cryptography-sensitive path
AI analysis · Moderate 60/100

This update fixes a memory issue in Trezor hardware wallets that could crash the device (out-of-memory) when confirming very large pieces of on-screen data. The fix ensures a temporary screen-layout object is explicitly released after use, rather than lingering in memory. It is a reliability/availability fix rather than a direct theft-of-funds vulnerability.

Lower-priorityrefactor(core): use `HomescreenBase` as a context managerby Roman Zeyde · f72da9e8 · Apr 20, 2026 · 4 filesMessage 77 · AdequateInformational 18Details
Commit message · Roman Zeyde

refactor(core): use `HomescreenBase` as a context manager

Instead of explicitly invoking `__del__()` to drop its `LayoutObj`.

[no changelog]

77/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides an explanatory body
AI analysis · Informational 18/100

This commit is a code cleanup: it replaces explicit calls to a destructor-like method with Python's standard 'with' context-manager pattern for homescreen objects. It does not add or remove security behavior; it only makes the cleanup more reliable and idiomatic. There is no indication this fixes an exploitable vulnerability.

AI review queuedfeat(core): touch wake-up feature introductionby bleska · 2d2a3529 · Apr 20, 2026 · 22 filesMessage 92 · StrongInformational 13Details
Commit message · bleska

feat(core): touch wake-up feature introduction

It enables waking the T3W1 device up by display touch from suspend mode:
- Adding display suspend/resume functionality because, until now, the display driver has controlled the PWREN MOSFET and RESET signals, which are shared with the touch driver logic.
- Since it's not possible to switch the display off, it's put into deep standby mode, from which only an external HW reset can wake it up.
- The touch controller is being used in "monitor" mode, which can detect a touch event and generate an INT signal to wake the MCU. Once touched, the controller switches to active mode.
- Adding the "TOUCH_WAKEUP_ENABLED" macro and preprocessor-based conditional compilation for controlling whether this feature is enabled/disabled in the build (it's preparation for "checkbox"-based enabling/disabling control).

[no changelog]

92/100 · StrongMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope✓ Provides detailed explanatory context✓ Explains rationale or failure mode
Why it was queued
second-pass: unusually broad change
AI analysis · Informational 13/100

This commit adds a new hardware feature for the Trezor T3W1 device that lets the user wake the device from suspend mode by touching the screen. It changes how the display and touch drivers are turned off and back on, and adds a new wake-up flag for touch events. The feature is currently disabled by default in the build configuration (TOUCH_WAKEUP_ENABLED is set to 0). There is no direct evidence in the commit that this fixes a security vulnerability; it appears to be a normal feature addition.

AI review queuedrefactor(core): remove cyclic dependency - display_rsod_rustby cepetr · b4427bf6 · Apr 20, 2026 · 2 filesMessage 62 · AdequateInformational 15Details
Commit message · cepetr

refactor(core): remove cyclic dependency - display_rsod_rust

[no changelog]

62/100 · AdequateMessage clarity
✓ Specific, descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
Why it was queued
second-pass: broader security terminology
AI analysis · Informational 15/100

This commit is a straightforward code cleanup. It removes a header file include in a C file and replaces it with a direct declaration of a Rust-implemented function, while removing that same declaration from a shared header. The change breaks a circular dependency between the low-level graphics code and the Rust UI layer. There is no functional change to how errors are displayed, no bug fix, and no security-relevant behavior change.

Lower-priorityfix(core): fix trustzone configurationby cepetr · 24c4a3ff · Apr 20, 2026 · 1 fileMessage 57 · ThinModerate 59Details
Commit message · cepetr

fix(core): fix trustzone configuration

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Moderate 59/100

This commit fixes the TrustZone security configuration on the STM32U5 chip used in Trezor hardware wallets. TrustZone splits the processor into a secure world (for secrets like the seed and PIN) and a non-secure world (for the main user interface). The patch makes three changes: it temporarily disables the Security Attribution Unit (SAU) while reprogramming it, adds memory barriers so the new rules take effect correctly, and marks one DMA channel's interrupt as secure. Without these fixes, secure memory regions could potentially be reachable from non-secure code, or security settings might not be applied reliably during boot.

Lower-priorityrefactor(core): use correct SDL includesby cepetr · a4ddb497 · Apr 20, 2026 · 3 filesMessage 57 · ThinInformational 15Details
Commit message · cepetr

refactor(core): use correct SDL includes

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 15/100

This commit only changes how the software development library SDL is included in source files for the Unix emulator build. It replaces generic include paths like <SDL.h> with versioned paths like <SDL2/SDL.h> and moves some includes outside a conditional block. There is no security-relevant change to the actual code logic, and no indication this fixes a vulnerability.

Lower-priorityfix(core): minor fixesby cepetr · ce1252a7 · Apr 20, 2026 · 13 filesMessage 40 · ThinInformational 16Details
Commit message · cepetr

fix(core): minor fixes

[no changelog]

40/100 · ThinMessage clarity
✓ Subject identifies a change✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 16/100

This is a routine cleanup commit in Trezor's embedded firmware. It mostly adds or tightens conditional compilation guards (so certain security-related code only compiles in secure/kernel builds), removes unused header includes, fixes a minor function declaration, and replaces a traditional header include guard with a simpler pragma. There is no direct evidence of an exploitable vulnerability being patched, and the commit message explicitly calls these 'minor fixes' with no changelog entry.

Lower-priorityfix(core): improve prodtest linker scriptsby cepetr · acb0f3fc · Apr 20, 2026 · 3 filesMessage 57 · ThinInformational 21Details
Commit message · cepetr

fix(core): improve prodtest linker scripts

[no changelog]

57/100 · ThinMessage clarity
✓ Descriptive subject✓ Names a concrete action or component✓ Uses a recognizable type or scope! No meaningful explanatory body
AI analysis · Informational 21/100

This commit adjusts how the production-test firmware for three Trezor hardware models calculates the length of the code image stored in flash memory. The old calculation added up the sizes of individual sections, which could become inaccurate if the linker layout changed. The new calculation uses a single marker placed at the actual end of the code/data in flash. This is a hardening improvement rather than a fix for an active attack, but an incorrect code-length value could theoretically cause a mis-sized firmware image to be written or verified during manufacturing tests.