Beschreibung
The kernel handler for IPV6_MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock. During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to freed memory. An unprivileged local user can exploit this use-after-free to escalate privileges.
CVSS 7.8EPSS 0.104%Risiko 0.79
Quelle öffnen- Veröffentlicht
- 2026-06-27 09:16:23
- Betroffene Versionen
- unknown
- Typ
- Kernel
- Vektor
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H