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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
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Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Avoid integer underflow with ffs in EOP ring size calc The low 6 bits of cp_hqd_eop_control store the base-2 logarithm of the EOP ring size. This was calculated as ffs(q->eop_ring_buffer_size / sizeof(unsigned int)) - 1 - 1 But ffs can in theory return 1 or 0, so this could underflow (although in practice the ring buffer size cannot be less than 4096). Change this to ffs(q->eop_ring_buffer_size / sizeof(unsigned int) / 4) using properties of logarithms. (cherry picked from commit 4f18c56630383c14bfc6b2d65f88f2f895d2121a)
Засегнати продукти
- Linux Linux: 14328aa58ce523a59996c5a82681c43ec048cc33 преди 82e1b8299c6da02ce02185c208d2fdf7572b5ea1; 14328aa58ce523a59996c5a82681c43ec048cc33 преди c883d0a132d430ef7ebb23fd94323be94d0fbdb8
- Linux Linux: 5.3; преди 5.3; 7.2.8 до 7.2.*; от 7.3 нататък
История
- 6 октомври 2026 Публикувано