Answer in brief
CVE-2026-74512 records a Unknown severity vulnerability in audit: fix potential use-after-free in audit_del_rule(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <45bf3df5b32e5a49953e7ceabc55f7dd85380e46 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <cae0dfed5d307b240bff71c3cf206652d1b6f215 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <5b8f46864f06d6dbacb7dcea52bc084dfd122638 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <246df90b5f1a8a6e6abbd2f058b029558720adec | 45bf3df5b32e5a49953e7ceabc55f7dd85380e46, 78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf, cae0dfed5d307b240bff71c3cf206652d1b6f215, 5b8f46864f06d6dbacb7dcea52bc084dfd122638, 246df90b5f1a8a6e6abbd2f058b029558720adec |
| Linux/Linuxgeneric | 4.3 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74512 records a Unknown severity vulnerability in audit: fix potential use-after-free in audit_del_rule(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <45bf3df5b32e5a49953e7ceabc55f7dd85380e46 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <cae0dfed5d307b240bff71c3cf206652d1b6f215 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <5b8f46864f06d6dbacb7dcea52bc084dfd122638 || >=34d99af52ad40bd498ba66970579a5bc1fb1a3bc <246df90b5f1a8a6e6abbd2f058b029558720adec | 45bf3df5b32e5a49953e7ceabc55f7dd85380e46, 78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf, cae0dfed5d307b240bff71c3cf206652d1b6f215, 5b8f46864f06d6dbacb7dcea52bc084dfd122638, 246df90b5f1a8a6e6abbd2f058b029558720adec |
| Linux/Linuxgeneric | 4.3 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.