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| author | Bruno Haible <bruno@clisp.org> | 2023-11-02 16:19:44 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-12-19 15:12:38 -0300 |
| commit | d0829302728954e0abacfc01551c17daf4d61c87 (patch) | |
| tree | 931ddfa8eee1f5bf55078f807d287773bdb9febe /sysdeps/hurd/htl | |
| parent | 80a40a9e14d9a01e3f70c5b37ecd1da83033b6de (diff) | |
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hppa: Fix undefined behaviour in feclearexcept (BZ 30983)
The expression
(excepts & FE_ALL_EXCEPT) << 27
produces a signed integer overflow when 'excepts' is specified as
FE_INVALID (= 0x10), because
- excepts is of type 'int',
- FE_ALL_EXCEPT is of type 'int',
- thus (excepts & FE_ALL_EXCEPT) is (int) 0x10,
- 'int' is 32 bits wide.
The patched code produces the same instruction sequence as
previosuly.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/hurd/htl')
0 files changed, 0 insertions, 0 deletions