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CVE-2026-93189: Linux

8.8

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 от съседна мрежа, без особени условия, без вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: HID: core: quiesce input in hid_hw_stop() to prevent use-after-free A driver's probe calls hid_device_io_start() to enable input delivery, then fails at a later initialization step and unwinds via hid_hw_stop(). The unwind frees struct hidraw via hidraw_disconnect() while in-flight HID reports may still be running on another CPU, dereferencing the freed object through hidraw_report_event(). syzbot reports the resulting use-after-free for the corsair-psu HID driver. Edward Adam Davis posted a per-driver fix for corsair-psu that adds an explicit hid_device_io_stop() before hid_hw_stop() in the probe error path ("hwmon: prevent packets from going to driver for probe", 2026-04-28). Auditing the tree shows 15 drivers call hid_device_io_start(); 7 also call hid_device_io_stop() and 8 do not: drivers calling hid_device_io_start() without a matching hid_device_io_stop() before hid_hw_stop(): drivers/hwmon/corsair-psu.c (fix posted by Edward) drivers/hwmon/corsair-cpro.c drivers/hwmon/nzxt-kraken3.c drivers/hwmon/nzxt-smart2.c drivers/hwmon/gigabyte_waterforce.c drivers/hid/hid-logitech-dj.c drivers/hid/hid-nintendo.c drivers/hid/hid-mcp2221.c Roughly half of all callers of the API are exposed. Centralize the quiesce in hid_hw_stop() so callers do not have to remember the matching stop: if a driver has left hdev->io_started true on entry, call hid_device_io_stop() before hid_disconnect(). For the 7 drivers that already call hid_device_io_stop() correctly, hdev->io_started is false on entry, the guard short-circuits, and behavior is unchanged. No Fixes: tag because the affected drivers gained their hid_device_io_start() calls independently over years; the bug is a class-wide API misuse rather than a regression from one commit.

    Засегнати продукти

    • Linux Linux: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 0744cb9520aade37e78f69134f3111086158f1d2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди c876c437d188911685d8bed645416f2e86bd0354; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 6787f1828f5616f17250e108c0031fb96fd2cfe6; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 92cca302a4eaf65d1b38b3fb600b4ee5eb856a51; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 544ebb25bd58f67e821573412ab7a982b9e02211; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди 0fecd89f979a8653b9a5b0816570329b7a94a081; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 преди a4bc41504690b7d7064931909874f5b98cd148b6; преди 5.10.270; преди 5.15.221; преди 6.1.188; преди 6.6.157; преди 6.12.110; преди 6.18.52; преди 7.2.6
    • Linux Linux: 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-2026-93189: Linux | freedomonline.bg