CVE-2026-64220
In the Linux kernel, the following vulnerability has been resolved: device property: set fwnode->secondary to NULL in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: device property: set fwnode->secondary to NULL in fwnode_init() If a firmware node is allocated on the stack (for instance: temporary software node whose life-time we control) or on the heap - but using a non-zeroing allocation function - and initialized using fwnode_init(), its secondary pointer will contain uninitalized memory which likely will be neither NULL nor IS_ERR() and so may end up being dereferenced (for example: in dev_to_swnode()). Set fwnode->secondary to NULL on initialization.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/215c90ee656114f5e8c32408228d97082f8e0eefPatch
- https://git.kernel.org/stable/c/34bf74b1fd2e4a44e27821a329204caf09df2976Patch
- https://git.kernel.org/stable/c/371f53925a6714d0aa35f1aefdffc3e8cd62f480Patch
- https://git.kernel.org/stable/c/3f1024deeab3b5443c29b3de4fe475e87309b8faPatch
- https://git.kernel.org/stable/c/508fd8ab158abd04b7f7d0f707cd6d6c405df4eaPatch
- https://git.kernel.org/stable/c/f0e211d6539fae800217c10797993b7592d6ab01Patch
- https://git.kernel.org/stable/c/f59e686c778cb41b8f7aa8fab2afd6a01afb3d47Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.