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.
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
2c8897953f3b2ff5498f3f275708a742bfcdbc24 to < f7e292f3c8c853f27a1af7eaf3428a0e76fe5fccaffected2c8897953f3b2ff5498f3f275708a742bfcdbc24 to < 4d52b72f3aa68ad0536444e36530bda75070194caffected2c8897953f3b2ff5498f3f275708a742bfcdbc24 to < 4033e1a9262c57dfbfc594a591a50fcba63c531aaffected2c8897953f3b2ff5498f3f275708a742bfcdbc24 to < a2cac45848d1cf31ed190db30f90ba8211e9a8caaffected2c8897953f3b2ff5498f3f275708a742bfcdbc24 to < 7c549fb7eecd01fdba7c0d12c01da876ef8a3214affected
Linux Linux
Default version status: affected
5.7affected0 to < 5.7unaffected6.6.160 to ≤ 6.6.*unaffected6.12.113 to ≤ 6.12.*unaffected6.18.56 to ≤ 6.18.*unaffected7.2.10 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc ↗
- https://git.kernel.org/stable/c/4d52b72f3aa68ad0536444e36530bda75070194c ↗
- https://git.kernel.org/stable/c/4033e1a9262c57dfbfc594a591a50fcba63c531a ↗
- https://git.kernel.org/stable/c/a2cac45848d1cf31ed190db30f90ba8211e9a8ca ↗
- https://git.kernel.org/stable/c/7c549fb7eecd01fdba7c0d12c01da876ef8a3214 ↗