CVE-2026-74512
CVE CVE-2026-74512EUVD EUVD-2026-59705Published 2026-08-15T12:27:33.000ZLast changed 2026-08-19T16:38:09.000ZCVSS 7.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 5.15.216; 4.3; patch: 7.2; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <3f82927b399d7a276c0c12b6ff4424b747a0c9a7; patch: 7.1.8; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <8ae135a8962be9d4e8a131eb18eb06cdf02a47ce; patch: 6.18.44; patch: 5.10.265; patch: 0; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <5b8f46864f06d6dbacb7dcea52bc084dfd122638; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <45bf3df5b32e5a49953e7ceabc55f7dd85380e46; patch: 6.6.151; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf; patch: 6.1.183; patch: 6.12.103; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <cae0dfed5d307b240bff71c3cf206652d1b6f215; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <246df90b5f1a8a6e6abbd2f058b029558720adec; 34d99af52ad40bd498ba66970579a5bc1fb1a3bc <93616c567469510b7bba55b2674e0c4523fd7e64
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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