CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: dma-fence: Make dma_fence_dedup_array() robust against 0-count input dma_fence_dedup_array() returns 1 when called with num_fences == 0: the for-loop body never executes, j stays at 0, and the final `return ++j` yields 1. This contradicts both the kernel-doc ("Return: Number of unique fences remaining in the array") and the natural expectation that 0 input gives 0 output. The caller __dma_fence_unwrap_merge() bails out via the `if (count == 0 || count == 1)` fast path and so is save. But amdgpu_userq_wait_*() could reach the dedup call with a zero local count and dereference an uninitialized fence slot in the array. Make the contract match the documentation by returning 0 early. This also skips an unnecessary sort() call on an empty array.
Засегнати продукти
- Linux Linux: 575ec9b0c2f11f40535ea737ed5a64792780d1ef преди 7aa8f3dba53422465dbe1be8dbb7240304462bb2; 575ec9b0c2f11f40535ea737ed5a64792780d1ef преди e2d9a2ea178a5da0b4a6693e8ebca5c7fc4d7051; 575ec9b0c2f11f40535ea737ed5a64792780d1ef преди 77a9298741f8f9e8b963c977f5582ab21c6d3427
- Linux Linux: 6.16; преди 6.16; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *
Вид слабост
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-72095
- https://nvd.nist.gov/vuln/detail/CVE-2026-72095
- https://git.kernel.org/stable/c/7aa8f3dba53422465dbe1be8dbb7240304462bb2
- https://git.kernel.org/stable/c/e2d9a2ea178a5da0b4a6693e8ebca5c7fc4d7051
- https://git.kernel.org/stable/c/77a9298741f8f9e8b963c977f5582ab21c6d3427