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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-97901

genetlink: pin family module during policy dump

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d07dcf9aadd6b2842b439e8668ff7ea2873f28d7 to < 1a345d95e59a99e25404138b5a1ec2edcb03269faffected
  • d07dcf9aadd6b2842b439e8668ff7ea2873f28d7 to < 6e4d746e55c83c240cffce92356763d16b236af5affected
  • d07dcf9aadd6b2842b439e8668ff7ea2873f28d7 to < 508387ad95ef9c13aa6431678c39763e882da2dcaffected
  • d07dcf9aadd6b2842b439e8668ff7ea2873f28d7 to < 6d8e653fcf1c90310797eeba8e5fafe9ccc3de9eaffected
  • d07dcf9aadd6b2842b439e8668ff7ea2873f28d7 to < 6a1094c34d176827b2b173e163dcc964a13af93faffected

Linux Linux

Default version status: affected

  • 5.8affected
  • 0 to < 5.8unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.112 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References