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CVE-2026-99036: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: dm: fix reading free memory in do_resume When do_resume calls dm_table_get_mode(new_map), the call is done without holding any locks (it only holds a reference to the md). It may be possible that another concurrent ioctl on the same device will swap table after dm_swap_table and before dm_table_get_mode. In this case, dm_table_get_mode(new_map) reads freed memory. This race condition was triggered by syzbot. This commit fixes the race by reading mode of the new table before dm_swap_table. Note that new_map is also passed to dm_ima_need_measure, but this function doesn't attempt to dereference it, so this call should be safe. Note that this is not a security bug because only root can trigger it and the commonly used tools such as lvm or cryptsetup do not call the ioctls concurrently, so that they can't trigger it acceidentally.

    Засегнати продукти

    • Linux Linux: d58168763f74d1edbc296d7038c60efe6493fdd4 преди 2bc5df0cf906f36a8f59ac864139ee2b7b53d3c0; d58168763f74d1edbc296d7038c60efe6493fdd4 преди 48169328021dfd59121f9a66cca919b7defcd3fa; d58168763f74d1edbc296d7038c60efe6493fdd4 преди 7a272c2338f758e3b6e664ebf7488ac40f48a2a4; d58168763f74d1edbc296d7038c60efe6493fdd4 преди 281f68d6cf8acb2547ebf0a849b8beae8fb0ec3c; d58168763f74d1edbc296d7038c60efe6493fdd4 преди 2c96d1a8324e7736e0f8a5790ecf39d36c2c4a82; d58168763f74d1edbc296d7038c60efe6493fdd4 преди e3bf232c913b7e0103d323f15e6342d37cb1b357; d58168763f74d1edbc296d7038c60efe6493fdd4 преди 301691c32b8ad023e3316d5dbb6a8cf52d47b0dc; d58168763f74d1edbc296d7038c60efe6493fdd4 преди c9417c1c5269e2bd0570fbe53e4ec03a8d31f008
    • Linux Linux: 2.6.29; преди 2.6.29; 5.10.273 до 5.10.*; 5.15.224 до 5.15.*; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.113 до 6.12.*; 6.18.57 до 6.18.*; 7.2.11 до 7.2.*; от 7.3 нататък

    История

    • 23 октомври 2026 Публикувано

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    CVE-2026-99036: Linux | freedomonline.bg