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: audit: fix potential use-after-free in audit_del_rule() `audit_del_rule()` destroys `e->rule.exe` via `audit_remove_mark_rule()` before unlinking the rule from RCU-visible filter lists and waiting for a grace period. Concurrent readers in `audit_filter()` and `audit_filter_rules()` still dereference `e->rule.exe`, while the fsnotify mark can be freed on an independent lifetime path. This creates a use-after-free window during rule deletion. Fix this by unlinking the rule from the RCU-visible lists and invoking `synchronize_rcu()` before calling `audit_remove_mark_rule()` (and other rule removal helpers). This ensures that all existing RCU readers have exited the critical section before any underlying resources are destroyed.
Засегнати продукти
- Linux Linux: 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 93616c567469510b7bba55b2674e0c4523fd7e64; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 3f82927b399d7a276c0c12b6ff4424b747a0c9a7; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 8ae135a8962be9d4e8a131eb18eb06cdf02a47ce; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 45bf3df5b32e5a49953e7ceabc55f7dd85380e46; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди cae0dfed5d307b240bff71c3cf206652d1b6f215; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 5b8f46864f06d6dbacb7dcea52bc084dfd122638; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 246df90b5f1a8a6e6abbd2f058b029558720adec
- Linux Linux: 4.3; преди 4.3; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.151 до 6.6.*; 6.12.103 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74512
- https://nvd.nist.gov/vuln/detail/CVE-2026-74512
- https://git.kernel.org/stable/c/93616c567469510b7bba55b2674e0c4523fd7e64
- https://git.kernel.org/stable/c/3f82927b399d7a276c0c12b6ff4424b747a0c9a7
- https://git.kernel.org/stable/c/8ae135a8962be9d4e8a131eb18eb06cdf02a47ce
- https://git.kernel.org/stable/c/45bf3df5b32e5a49953e7ceabc55f7dd85380e46
- https://git.kernel.org/stable/c/78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf
- https://git.kernel.org/stable/c/cae0dfed5d307b240bff71c3cf206652d1b6f215
- https://git.kernel.org/stable/c/5b8f46864f06d6dbacb7dcea52bc084dfd122638
- https://git.kernel.org/stable/c/246df90b5f1a8a6e6abbd2f058b029558720adec