Subword division operations may produce incorrect results
Arithmetic operations may produce incorrect results when compiled with optimizations. For the most part, this bug only causes availability and data integrity issues. However, in some circumstances, it may result in other, more complicated security related flaws, such as buffer overflow conditions.
Info
- Published
- November 14, 2025
- Modified
- November 14, 2025
- CAPECs
- < none >
- CWEs
- 682
- Keywords
- integrity, dos
- Aliases
- < none >
- Related
- < none >
- References
- [REPORT] https://gitlab.haskell.org/ghc/ghc/-/issues/25653
- [REPORT] https://discourse.haskell.org/t/psa-correctness-issue-in-ghc-9-12/11204
- [FIX] https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13820
Affected
ghc
- CVSS
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
- Versions
>=9.12.1 && <9.12.2- Declarations
- < none >