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CVSS
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Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix off-by-one in port I/O handling handle_in() and handle_out() in arch/x86/coco/tdx/tdx.c use: u64 mask = GENMASK(BITS_PER_BYTE * size, 0); GENMASK(h, l) includes bit h. For size=1 (INB), this produces GENMASK(8, 0) = 0x1FF (9 bits) instead of GENMASK(7, 0) = 0xFF (8 bits). The mask is one bit too wide for all I/O sizes. Fix the mask calculation.
Засегнати продукти
- Linux Linux: 03149948832a078f759022ed5b92e722d8d23c26 преди c6875423ad849ac234ab9812eb72f37ff8a490b4; 03149948832a078f759022ed5b92e722d8d23c26 преди 220011fe95fc78b2bc2d7d43893bc73957a5c811; 03149948832a078f759022ed5b92e722d8d23c26 преди 222b7005e4519f633b4cd666226256abbab46a1a; 03149948832a078f759022ed5b92e722d8d23c26 преди c4a22154870813d10aa0b4c734a574c726f9d4b0; 03149948832a078f759022ed5b92e722d8d23c26 преди bb45f705c4440dd3c689328319b88dd28770bbb8; 03149948832a078f759022ed5b92e722d8d23c26 преди 0f63e656b1c679d32ac595de29d10c03efca6a25
- Linux Linux: 5.19; преди 5.19; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък
История
- 11 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-89751
- https://nvd.nist.gov/vuln/detail/CVE-2026-89751
- https://git.kernel.org/stable/c/c6875423ad849ac234ab9812eb72f37ff8a490b4
- https://git.kernel.org/stable/c/220011fe95fc78b2bc2d7d43893bc73957a5c811
- https://git.kernel.org/stable/c/222b7005e4519f633b4cd666226256abbab46a1a
- https://git.kernel.org/stable/c/c4a22154870813d10aa0b4c734a574c726f9d4b0
- https://git.kernel.org/stable/c/bb45f705c4440dd3c689328319b88dd28770bbb8
- https://git.kernel.org/stable/c/0f63e656b1c679d32ac595de29d10c03efca6a25