CVEvulnerability
CVE-2026-98792
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: generalize pending status bit
Rename NF_FLOW_HW_PENDING to NF_FLOW_PENDING and use it to inhibit the
flowtable GC worker until pending hw offload work has been completed.
Apparently, nf_flow_offload_stats() can schedule work to retrieve stats
while the flow is being removed by GC.
And this bit can also be used in a follow up patch to disable GC until
the flow has been fully added in both directions.
Revert the reordering done in commit d644b23afe1e ("netfilter:
flowtable: publish HW_DEAD after worker is done") to prevent a race
between GC and hw offload handler.
References
- https://git.kernel.org/stable/c/4033e1a9262c57dfbfc594a591a50fcba63c531a git.kernel.org
- https://git.kernel.org/stable/c/4d52b72f3aa68ad0536444e36530bda75070194c git.kernel.org
- https://git.kernel.org/stable/c/7c549fb7eecd01fdba7c0d12c01da876ef8a3214 git.kernel.org
- https://git.kernel.org/stable/c/a2cac45848d1cf31ed190db30f90ba8211e9a8ca git.kernel.org
- https://git.kernel.org/stable/c/f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc git.kernel.org