Fix OOB gzseek() causing assertion failure #20785
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devnexen
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Dec 26, 2025
ext/zlib/zlib_fopen_wrapper.c
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| *newoffs = gzseek(self->gz_file, offset, whence); | ||
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| return (*newoffs < 0) ? -1 : 0; | ||
| off_t new_offset = gzseek(self->gz_file, offset, whence); |
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(tiny) nit: new_offset should be a z_off_t.
devnexen
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Dec 26, 2025
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makes sense. I m surprised no one reported it tough, seems pretty straightforward.
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