UNKNOWN NVD
CVE-2026-74746
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: publish GC-visible tuple last nf_flow_table_iterate() only treats or
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: publish GC-visible tuple last
nf_flow_table_iterate() only treats original-direction tuple nodes as
owning entries. Publishing the original node first lets GC observe and
free a flow while flow_offload_add() is still inserting the reply node.
Publish the reply node first and the original node last so GC never
sees a partially installed flow.
KASAN can trigger slab-use-after-free read and write reports in the
flowtable/rhashtable path (rht_deferred_worker, jhash, flow_offload_del,
flow_offload_lookup, etc.).
References
- https://git.kernel.org/stable/c/0a00254585827f1695aa2700114af622ea754cfa
- https://git.kernel.org/stable/c/2014ac62df9d45bb9a004a043e85df7be09ed780
- https://git.kernel.org/stable/c/211ee5d998d92a7d548811939c65942d06c146e4
- https://git.kernel.org/stable/c/972fdf7c4f5c282a239c88fea614b056c33dc025
- https://git.kernel.org/stable/c/be345dcbddb4643a54252b954af974b16eda8f91
This unknown severity vulnerability was published on 2026-08-26 via NVD.
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