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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2021-06-09 16:17:14 -0400 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-01-27 15:49:37 -0800 |
| commit | a2be2c0f5d4d8cd2c6a227d60f13cc1c8eb61171 (patch) | |
| tree | d2571d3cdd7dc643cec63be3bf6bfa571fb95954 /misc/lutimes.c | |
| parent | 489006c3c50ba19ff0b8b2dcfb5f48d0327eae9c (diff) | |
| download | glibc-a2be2c0f5d4d8cd2c6a227d60f13cc1c8eb61171.tar.gz glibc-a2be2c0f5d4d8cd2c6a227d60f13cc1c8eb61171.tar.xz glibc-a2be2c0f5d4d8cd2c6a227d60f13cc1c8eb61171.zip | |
String: Add overflow tests for strnlen, memchr, and strncat [BZ #27974]
This commit adds tests for a bug in the wide char variant of the functions where the implementation may assume that maxlen for wcsnlen or n for wmemchr/strncat will not overflow when multiplied by sizeof(wchar_t). These tests show the following implementations failing on x86_64: wcsnlen-sse4_1 wcsnlen-avx2 wmemchr-sse2 wmemchr-avx2 strncat would fail as well if it where on a system that prefered either of the wcsnlen implementations that failed as it relies on wcsnlen. Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com> Reviewed-by: H.J. Lu <hjl.tools@gmail.com> (cherry picked from commit da5a6fba0febbfc90896ce1b2eb75c6d8a88a72d)
Diffstat (limited to 'misc/lutimes.c')
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