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Low 27 Bitcoin

Update FatFs to R0.16

BB9f2b493d View source ↗
Public commit record

What the developer wrote

Authored by Marko Bencun

69/100 · Adequate
Update FatFs to R0.16

Update the vendored FatFs copy from R0.14b to R0.16 plus upstream
patch 1.

- Base archive: https://elm-chan.org/fsw/ff/arc/ff16.zip
- https://elm-chan.org/fsw/ff/patch/ff16p1.diff

Keep the existing BitBox configuration choices for LFN, tiny mode, mkfs support,
code page 850, fixed timestamps, and disabled exFAT, labels, and LBA64.
✓ Subject identifies a change✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
The short version

What changed, and why it matters

This commit updates the third-party FatFs file-system library inside the BitBox02 firmware from version R0.14b to R0.16 plus an upstream patch. The change is a routine dependency refresh: it replaces the vendored source files with the newer upstream release while keeping BitBox's existing configuration (long-file-name support, tiny mode, code page 850, fixed timestamps, no exFAT, no labels, no 64-bit LBA). Most of the visible diff is documentation and metadata; the actual C source files (ff.c, ff.h, ffconf.h, diskio.c, etc.) are updated wholesale. The commit message does not claim to fix any security issue, and no independent security advisory or CVE is supplied.

Recommended action

Treat as a standard dependency maintenance update. Review the upstream FatFs R0.16 and patch 1 changelogs for any security-relevant fixes, run the project's existing firmware tests for SD card / filesystem operations, and verify that the preserved ffconf.h settings still compile and behave correctly with the new upstream sources. No immediate security response is indicated by the commit itself.

Security signals we found

01

Third-party dependency update (FatFs R0.14b -> R0.16+p1)

02

No explicit security claim in commit message

03

No CVE or advisory referenced in commit or supplied references

04

Configuration preserved: LFN enabled, tiny mode, mkfs support, code page 850, fixed timestamps, exFAT/labels/LBA64 disabled

05

Potential for upstream bug fixes (including possible filesystem correctness/security fixes) introduced by version bump, but not identifiable from the provided diff

Risk score

Why this scored 27/100

Our methodology →
Potential impact 5/30
Exploitability 5/25
Stealth signal 5/15
Affected reach 5/15
Confidence 5/10
Evidence quality 2/5
Human-validated context

Community notes

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The AI analysis stands alone for now. Submit a note if you can add evidence or important context.

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