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CVE-2026-93054: Linux

7.0

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, при специфични условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: uio: Fix stale info pointer in failed registration path After device_add(), the UIO device is visible to userspace and /dev/uioX can be opened. If a later setup step fails, __uio_register_device() unwinds the device but leaves idev->info pointing at the caller-owned struct uio_info. That is unsafe when an opener races with the failed registration path. The open file keeps a reference to the uio_device, while the caller sees registration failure and may free its struct uio_info. Later file operations can then follow idev->info and dereference freed memory. Handle post-device_add() failures like unregister: remove UIO attributes while the info pointer is still valid, then clear idev->info under info_lock and wake existing waiters/async users before removing the device and minor. This makes already-open file descriptors observe the same "device gone" state as normal uio_unregister_device().

    Засегнати продукти

    • Linux Linux: a93e7b331568227500186a465fee3c2cb5dffd1f преди 63eaa7663335d482a8825c231213e312cacea567; a93e7b331568227500186a465fee3c2cb5dffd1f преди df4faf65194ec6c315a59be4c6749eaeb3009243; a93e7b331568227500186a465fee3c2cb5dffd1f преди 506b43dde5f9ac0068b1360e6b5dbee07fda59fb; a93e7b331568227500186a465fee3c2cb5dffd1f преди 15340b00e665af805523b08515294a1aa1778151; a93e7b331568227500186a465fee3c2cb5dffd1f преди 234156f6c6d9ec35dc47abbcc3adc3c79fc6a5ac; a93e7b331568227500186a465fee3c2cb5dffd1f преди 16695e9059d80ea6661e8399064b0c01f641dd8c; a93e7b331568227500186a465fee3c2cb5dffd1f преди ec5bd6731183eb6f619140c9bef2ee11ed818c20; a93e7b331568227500186a465fee3c2cb5dffd1f преди 67b6fc084b034a91c3ec7907a3fed89a2450f30b; 085d735c858934e5d5bfaedb1fc98bd9135e6ff1; 4.14.100 преди 4.15
    • Linux Linux: 4.18; преди 4.18; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

    История

    • 17 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-93054: Linux | freedomonline.bg