CVE-2026-98862
What it is
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.
At a glance
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: not scored yet.
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-98862.md and follow it. Check whether this project is affected by CVE-2026-98862. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://git.kernel.org/stable/c/0afb9202c1fb88387d0577524bf9785664bdd802
- https://git.kernel.org/stable/c/11715656540360906235d724fde5349631425073
- https://git.kernel.org/stable/c/304960900991157e6883bdf0b39782b690545ee8
- https://git.kernel.org/stable/c/88633025f20ba9c32ccdb3efc86eafdf98cb825c
- https://git.kernel.org/stable/c/8d9c97fb262067933ff4452db19e692d26622352
- https://git.kernel.org/stable/c/9aee3caeff4dd4126d84f67607b95cec8719b867
- https://git.kernel.org/stable/c/aa650d87a498844060eecb1d336f4d46f4d1b0b3
- https://git.kernel.org/stable/c/f2cc5462b78559c7628a9f8ac9a9592e7783183a