CVE-2026-97901

genetlink: pin family module during policy dump

N/A
Published: September 25, 2026 at 10:22 AM UTC
Updated: October 21, 2026 at 01:21 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.8d07dcf9aadd6b2842b439e8668ff7ea2873f28d7
Vendor states this is fixed in 508387ad95ef9c13aa6431678c39763e882da2dc (fixed)
Vendor states this is fixed in 6a1094c34d176827b2b173e163dcc964a13af93f (fixed)
Vendor states this is fixed in 6d8e653fcf1c90310797eeba8e5fafe9ccc3de9e (fixed)
Vendor states this is fixed in 6e4d746e55c83c240cffce92356763d16b236af5 (fixed)
Vendor states this is fixed in 5.8 (unaffected)
Vendor states this is fixed in 6.12.112 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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