CVE-2026-74746
CVE CVE-2026-74746EUVD EUVD-2026-66576Published 2026-08-26T14:36:55.000ZLast changed 2026-08-27T05:01:07.000ZCVSS 9.8
What the advisory describes
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.).
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux ac2a66665e231847cab11b8c8e844ce43207dd2e <211ee5d998d92a7d548811939c65942d06c146e4; patch: 6.12.105; ac2a66665e231847cab11b8c8e844ce43207dd2e <0a00254585827f1695aa2700114af622ea754cfa; patch: 5.15.217; 4.16; ac2a66665e231847cab11b8c8e844ce43207dd2e <be345dcbddb4643a54252b954af974b16eda8f91; patch: 7.1.10; patch: 0; patch: 6.6.153; ac2a66665e231847cab11b8c8e844ce43207dd2e <d9d3050a70efe217e73a0751e55fdae6a7092620; patch: 6.18.46; ac2a66665e231847cab11b8c8e844ce43207dd2e <972fdf7c4f5c282a239c88fea614b056c33dc025; ac2a66665e231847cab11b8c8e844ce43207dd2e <d37917e7bebe078f3c17e47fd6fc1c9f6e8497b2; patch: 7.2; patch: 6.1.184; patch: 5.10.266; ac2a66665e231847cab11b8c8e844ce43207dd2e <d16b71231e65cb05daea2b45701fcf09cef041e7; ac2a66665e231847cab11b8c8e844ce43207dd2e <2014ac62df9d45bb9a004a043e85df7be09ed780
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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