CVE-2026-32848: NetBSD cryptodev Race Condition Double-Free via cryptodev_op()
NetBSD prior to commit ec8451e contains a race condition vulnerability in cryptodev_op() within the opencrypto subsystem that allows local attackers to trigger a double-free condition by concurrently issuing CIOCCRYPT operations on the same session identifier on SMP systems. Attackers can exploit mutable per-operation state embedded in the csession struct to corrupt kernel heap memory.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32848?
CVE-2026-32848 has a medium severity score of 5.7.
How do I fix CVE-2026-32848?
To fix CVE-2026-32848, update to the latest version of NetBSD that includes the commit ec8451e.
What types of attacks can exploit CVE-2026-32848?
CVE-2026-32848 can be exploited by local attackers to trigger a double-free condition on SMP systems.
Which software is affected by CVE-2026-32848?
CVE-2026-32848 affects the NetBSD operating system prior to commit ec8451e.
What are the vulnerabilities associated with CVE-2026-32848?
CVE-2026-32848 is associated with race condition and double free vulnerabilities.