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: crypto: qat - validate RSA CRT component lengths The generic RSA key parser (rsa_helper.c) bounds each CRT component (p, q, dp, dq, qinv) by the modulus size n_sz, but qat_rsa_setkey_crt() allocates half-size DMA buffers (key_sz / 2) and right-aligns each component with: memcpy(dst + half_key_sz - len, src, len) When a CRT component is larger than half_key_sz the subtraction underflows and memcpy writes past the DMA buffer, causing memory corruption. Add a len > half_key_sz check next to the existing !len check for each of the five CRT components so the driver falls back to the non-CRT path instead of writing out of bounds.
Засегнати продукти
- Linux Linux: 879f77e9071f029e1c9bd5a75814ecf51370f846 преди 6d99c5fadd2df488103f64d6475b63ba6852202b; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди c34369473bfe92a0b46ec78d6358e30341c7f481; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди 1002719d13072a5e4be1e993aa61dffb4a604e82; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди 500319830d76911c120dc0b9605f8c16d7702844; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди 3d61a214fdcda41f1ebfabbb483404032a7b4d91; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди 6fb62b767f3e27661e8f8d2f7b85f4e098fcdb1a; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди ce42224487c504aee4b7ff3a7342e7b4d7e28cc9; 879f77e9071f029e1c9bd5a75814ecf51370f846 преди b3ac78756588059729b9195fcc9f4b37d54057a5
- Linux Linux: 4.8; преди 4.8; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; 7.2 до *
Вид слабост
История
- 25 юли 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-64304
- https://nvd.nist.gov/vuln/detail/CVE-2026-64304
- https://git.kernel.org/stable/c/6d99c5fadd2df488103f64d6475b63ba6852202b
- https://git.kernel.org/stable/c/c34369473bfe92a0b46ec78d6358e30341c7f481
- https://git.kernel.org/stable/c/1002719d13072a5e4be1e993aa61dffb4a604e82
- https://git.kernel.org/stable/c/500319830d76911c120dc0b9605f8c16d7702844
- https://git.kernel.org/stable/c/3d61a214fdcda41f1ebfabbb483404032a7b4d91
- https://git.kernel.org/stable/c/6fb62b767f3e27661e8f8d2f7b85f4e098fcdb1a
- https://git.kernel.org/stable/c/ce42224487c504aee4b7ff3a7342e7b4d7e28cc9
- https://git.kernel.org/stable/c/b3ac78756588059729b9195fcc9f4b37d54057a5