CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: char: tlclk: fix use-after-free in tlclk_cleanup() This patch improves the module cleanup process in the tlclk driver to prevent potential use-after-free and race conditions. Currently, the file_operations structure does not specify the .owner field, which could allow the module to be unloaded while user-space processes are still interacting with the device. Additionally, the tlclk_cleanup() function frees the alarm_events memory before ensuring that blocked processes in the waitqueue are fully awakened and that the switchover_timer has completed. To address these cases, this patch: - Sets '.owner = THIS_MODULE' in tlclk_fops to safely defer module unloading while the device is in use. - Updates tlclk_cleanup() to explicitly wake up all blocked readers (wake_up_all), properly release hardware I/O regions, and safely delete the timer (timer_delete_sync) prior to freeing memory.
Засегнати продукти
- Linux Linux: 1a80ba88273097933f93b1f40537337416798c70 преди 09d8d2a46a9ec9ff728f3159a174a2ab25dd0f0a; 1a80ba88273097933f93b1f40537337416798c70 преди 96902299a22d126ef5eb3f45cd5d8ceea9e6a735; 1a80ba88273097933f93b1f40537337416798c70 преди 166dd1d5265e067459e674c11688919901813ec2; 1a80ba88273097933f93b1f40537337416798c70 преди 764723bd67a6c8f53a8d8309211fb039e2ebcf49; 1a80ba88273097933f93b1f40537337416798c70 преди c3f0cd76561ae611c2d247ee96dfd559e4197cb7; 1a80ba88273097933f93b1f40537337416798c70 преди 3d5e4cc0d9dce79b0429da3134ac7b072ab9009f; 1a80ba88273097933f93b1f40537337416798c70 преди 42223445607a9a5df3cb1c4729abfe3a5085e7ce; 1a80ba88273097933f93b1f40537337416798c70 преди bbf003b7794d6ad6f939fdd29f1f1bde8ac554c1
- Linux Linux: 2.6.15; преди 2.6.15; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък
История
- 28 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-80622
- https://nvd.nist.gov/vuln/detail/CVE-2026-80622
- https://git.kernel.org/stable/c/09d8d2a46a9ec9ff728f3159a174a2ab25dd0f0a
- https://git.kernel.org/stable/c/96902299a22d126ef5eb3f45cd5d8ceea9e6a735
- https://git.kernel.org/stable/c/166dd1d5265e067459e674c11688919901813ec2
- https://git.kernel.org/stable/c/764723bd67a6c8f53a8d8309211fb039e2ebcf49
- https://git.kernel.org/stable/c/c3f0cd76561ae611c2d247ee96dfd559e4197cb7
- https://git.kernel.org/stable/c/3d5e4cc0d9dce79b0429da3134ac7b072ab9009f
- https://git.kernel.org/stable/c/42223445607a9a5df3cb1c4729abfe3a5085e7ce
- https://git.kernel.org/stable/c/bbf003b7794d6ad6f939fdd29f1f1bde8ac554c1