CVE-2026-98415 soc: samsung: exynos-pmu: fix use-after-free of interrupt generator node
A use-after-free vulnerability in the Samsung Exynos PMU driver allows local attackers to potentially execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98415?
CVE-2026-98415 is an use after free vulnerability in Linux, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
soc: samsung: exynos-pmu: fix use-after-free of interrupt generator node
The setup_cpuhp_and_cpuidle() parses the device tree node for the interrupt generation block via of_parse_phandle() and decrements its reference count using of_node_put() immediately after fetching the resource address. However, later the intr_gen_node pointer is passed into of_syscon_register_regmap().
Fix this by declaring intr_gen_node with __free() and removing of_node_put().
Which versions are affected by CVE-2026-98415?
How do I fix CVE-2026-98415?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-98415 being exploited?
There is no known exploitation of CVE-2026-98415 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-98415, DEBIAN-CVE-2026-98415, GHSA-x8m9-w5rv-ggmr, UBUNTU-CVE-2026-98415.