Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: genetlink: pin family module during policy dump The generic netlink controller's policy dump keeps pointers to the target family's operation and policy tables in its callback state. A dump may be split across multiple skbs and remain pending after the initial request. Netlink pins the module which owns the dump callback, but in this case that is the controller's owner rather than the target family's owner. The target family can consequently be unregistered and its module unloaded while a policy dump is pending. Advancing the dump then dereferences policy memory from the unloaded module. Take a reference to the target family's module when the dump starts. Drop it from the error and done paths. This matches the lifetime for which the dump context retains the family and policy pointers.
References
- https://git.kernel.org/stable/c/508387ad95ef9c13aa6431678c39763e882da2dc
- https://git.kernel.org/stable/c/6a1094c34d176827b2b173e163dcc964a13af93f
- https://git.kernel.org/stable/c/6d8e653fcf1c90310797eeba8e5fafe9ccc3de9e
- https://git.kernel.org/stable/c/6e4d746e55c83c240cffce92356763d16b236af5
FAQ
What is CVE-2026-97901?
CVE-2026-97901 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: genetlink: pin family module during policy dump The generic netlink controller's policy dump keeps pointers to the target family's...
How severe is CVE-2026-97901?
CVSS scoring is not yet available for CVE-2026-97901. Check NVD for updates.
Is there a patch for CVE-2026-97901?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.