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CVE-2026-31701: 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: ALSA: caiaq: take a reference on the USB device in create_card() The caiaq driver stores a pointer to the parent USB device in cdev->chip.dev but never takes a reference on it. The card's private_free callback, snd_usb_caiaq_card_free(), can run asynchronously via snd_card_free_when_closed() after the USB device has already been disconnected and freed, so any access to cdev->chip.dev in that path dereferences a freed usb_device. On top of the refcounting issue, the current card_free implementation calls usb_reset_device(cdev->chip.dev). A reset in a free callback is inappropriate: the device is going away, the call takes the device lock in a teardown context, and the reset races with the disconnect path that the callback is already cleaning up after. Take a reference on the USB device in create_card() with usb_get_dev(), drop it with usb_put_dev() in the free callback, and remove the usb_reset_device() call.

    Засегнати продукти

    • Linux Linux: 4dd821dcbfcecf7af6a08370b0b217cde2818acf преди 493b3a682ededc804555755f5d2193201339612d; cadf1d8e9ddcd74584ec961aeac14ac549b261d8 преди dbcf7588e8dea017ddb3f18ec2766f7d2e5f2a0e; 237f3faf0177bdde728fa3106d730d806436aa4d преди ac7345f68cda6989016d85d63f7b244c064aa8f6; 4507a8b9b30344c5ddd8219945f446d47e966a6d преди f6634af5de728a46792f674a66d7843570cb68f7; a3f9314752dbb6f6aa1f0f2b4c58243bda800738 преди 1d9be95aee6c6246a21752e60c9519902649f482; b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c преди 6473ed16df1fe88051140611b3eb9a49be7f429e; b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c преди 59b622a043cffc58b7638cd85ae6c30a0904f8e6; b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c преди 80bb50e2d459213cccff3111d5ef98ed4238c0d5; 3993edf44d3df7b6e8c753eac6ac8783473fcbab; ebad462eec93b0f701dfe4de98990e7355283801; dd0de8cb708951cebf727aa045e8242ba651bb52; 5.10.231 преди 5.10.258; 5.15.174 преди 5.15.209; 6.1.120 преди 6.1.175; 6.6.64 преди 6.6.136; 6.12.2 преди 6.12.84; 4.19.325 преди 4.20; 5.4.287 преди 5.5; 6.11.11 преди 6.12
    • Linux Linux: 6.13; преди 6.13; 5.10.258 до 5.10.*; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.136 до 6.6.*; 6.12.84 до 6.12.*; 6.18.25 до 6.18.*; 7.0.2 до 7.0.*; от 7.1 нататък

    История

    • 1 май 2026 Публикувано

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