CVE-2026-74512
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
audit: fix potential use-after-free in audit_del_rule()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 93616c567469510b7bba55b2674e0c4523fd7e64 | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 3f82927b399d7a276c0c12b6ff4424b747a0c9a7 | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 8ae135a8962be9d4e8a131eb18eb06cdf02a47ce | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 45bf3df5b32e5a49953e7ceabc55f7dd85380e46 | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 78bde7e9bd36eaae1b8e8cfcd47f12a34f301dbf | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | cae0dfed5d307b240bff71c3cf206652d1b6f215 | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 5b8f46864f06d6dbacb7dcea52bc084dfd122638 | Unavailable | None listed |
| 34d99af52ad40bd498ba66970579a5bc1fb1a3bc | affected | git | 246df90b5f1a8a6e6abbd2f058b029558720adec | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.3 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.151 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |