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CVE-2026-98201: Linux

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CVSS

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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: Input: zero ff_effect before compat copy in input_ff_effect_from_user In the compat path input_ff_effect_from_user() aliases the caller's native struct ff_effect with the smaller struct ff_effect_compat and copies only the compat sized prefix: compat_effect = (struct ff_effect_compat *)effect; if (copy_from_user(compat_effect, buffer, sizeof(struct ff_effect_compat))) The tail of the native structure is never written. Callers pass an uninitialized on-stack object, for example evdev_do_ioctl() for EVIOCSFF, so those bytes keep their previous stack contents. input_ff_upload() then stores the full native structure in ff->effects[id], from where a uinput based force feedback daemon can read it back via UI_BEGIN_FF_UPLOAD, disclosing kernel stack memory to userspace. Zero the effect before the compat copy.

    Засегнати продукти

    • Linux Linux: 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди ed0905fda39682d3da7937184397d3276abbffa8; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди ec174c2ab1abb76b20fa167c6db848c3d97aa838; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди 6c26681c5668c973bd0e951407d670ac60d9cd66; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди c5e573bb095d502be7cbbaa99c26a20984111c6d; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди b878720e8bcaa4cf7163a5081f904dd6baf11b2c; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди 0d05b43b55d4784a42ce8fb318175f8ad7d9af5a; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди ed0406e490f48ed180df140fe2a81be26bccb1a9; 2d56f3a32c0e62f99c043d2579840f9731fe5855 преди f84819ef8d66931ee3998fee3c4f03230f4cb6cc
    • Linux Linux: 2.6.29; преди 2.6.29; 5.10.271 до 5.10.*; 5.15.222 до 5.15.*; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; 7.3 до *

    История

    • 6 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98201: Linux | freedomonline.bg