Threats Tagged 'ubuntu-cve-2025-38579'
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Threats Tagged 'ubuntu-cve-2025-38579'
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In the Linux kernel, the following vulnerability has been resolved: f2fs: fix KMSAN uninit-value in extent_info usage KMSAN reported a use of uninitialized value in `__is_extent_mergeable()` and `__is_back_mergeable()` via the read extent tree path. The root cause is that `get_read_extent_info()` only initializes three fields (`fofs`, `blk`, `len`) of `struct extent_info`, leaving the remaining fields uninitialized. This leads to undefined behavior when those fields are accessed later, especially during extent merging. Fix it by zero-initializing the `extent_info` struct before population. Join the discussion | GCVE Database | 08/19/2025, 17:15:00 UTC Added: 07/31/2026, 15:45:09 UTC |
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