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CVE-2026-89887: Linux

7.8

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 локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: media: i2c: ov7740: fix use-after-destroy in remove The ov7740_remove() function had a severe teardown order bug where it destroyed the driver's mutex before freeing the V4L2 control handler which relies on that mutex, leading to a use-after-destroy kernel panic. Furthermore, the driver explicitly called v4l2_ctrl_handler_free() and mutex_destroy() sequentially, but then called ov7740_free_controls() which invokes both of them a second time, resulting in a double-free. This patch fixes the issue by unregistering the subdevice first, and relying exclusively on ov7740_free_controls() to safely tear down the mutex and control handler in the correct order.

    Засегнати продукти

    • Linux Linux: 39c5c4471b8d793daf868bd004e56ed420e89707 преди 9e4693436c7dcf8584002500ce4b434b79bbf9ed; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 81e9765878d3ac8ad18e3a683332b5d6bc3a0e33; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 8a02ee6c1c4e88f3a0442bd60d3c77db9a30db5e; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 7512838a19af0a284a58435292243fad21e57ff1; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 25e2505866c577db2661e4d431f0907c6ec9a3b4; 39c5c4471b8d793daf868bd004e56ed420e89707 преди af81f35e4f429e769b784754e1aa4d7a922470ac; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 09453b467990e8ef8fe09f45a685f9a625248d33; 39c5c4471b8d793daf868bd004e56ed420e89707 преди 5d1b3dea5a44124bab6c14a2d71b977dabed54e7
    • Linux Linux: 4.16; преди 4.16; 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.*; 6.18.51 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

    История

    • 16 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89887: Linux | freedomonline.bg