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CVE-2026-98862: Linux

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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: audit: fix exe mark UAF in kill_rules() kill_rules() removes mixed AUDIT_DIR and AUDIT_EXE rules when an audit tree is pruned. It drops entry->rule.exe before removing the rule from the RCU-visible filter lists. After a rule has been installed with AUDIT_ADD_RULE, which requires CAP_AUDIT_CONTROL, removing the watched directory can race with another task that is still evaluating the rule. In that case, fsnotify can free the executable mark before the reader reaches audit_mark_compare(), causing a use-after-free. KASAN reports: BUG: KASAN: slab-use-after-free in audit_mark_compare+0x8d/0xa0 Unlink the published rules from the RCU-visible lists and retain them on tree->rules for cleanup. If any rule has an executable mark, wait for a single RCU grace period before removing the marks and scheduling the entries for freeing. Otherwise, call_rcu() already provides the required deferred freeing without a synchronous wait.

    Засегнати продукти

    • Linux Linux: 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 8d9c97fb262067933ff4452db19e692d26622352; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 11715656540360906235d724fde5349631425073; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 0afb9202c1fb88387d0577524bf9785664bdd802; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 9aee3caeff4dd4126d84f67607b95cec8719b867; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 304960900991157e6883bdf0b39782b690545ee8; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди 88633025f20ba9c32ccdb3efc86eafdf98cb825c; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди f2cc5462b78559c7628a9f8ac9a9592e7783183a; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc преди aa650d87a498844060eecb1d336f4d46f4d1b0b3
    • Linux Linux: 4.3; преди 4.3; 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.*; 6.18.56 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

    История

    • 18 октомври 2026 Публикувано

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    CVE-2026-98862: Linux | freedomonline.bg