Answer in brief
CVE-2026-74565 records a Unknown severity vulnerability in netfilter: nf_tables: make nft_object rhltable per table. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4d44175aa5bb5f68772b1eb0306554812294ca52 <1948e4f85b855618b5b9a27265f98d816f4cb7cb || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <63ba12b664a2cd3220ed43e22c717715f4cc2ae8 || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <f4f699790590bd0896c48a71e9232a65198f92f0 | 1948e4f85b855618b5b9a27265f98d816f4cb7cb, 63ba12b664a2cd3220ed43e22c717715f4cc2ae8, 7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af, f4f699790590bd0896c48a71e9232a65198f92f0 |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: make nft_object rhltable per table The nft_object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft_obj_destroy() releases the object inmediately, this might lead to use-after-free of these objects that are being released. Make the existing rhltable per table to address this issue to deal with with the nft_rcv_nl_event() path too. Update nft_obj_lookup() to take the table as non-const, otherwise, compiler complains when passing the objname_ht to rhltable_lookup().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74565 records a Unknown severity vulnerability in netfilter: nf_tables: make nft_object rhltable per table. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4d44175aa5bb5f68772b1eb0306554812294ca52 <1948e4f85b855618b5b9a27265f98d816f4cb7cb || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <63ba12b664a2cd3220ed43e22c717715f4cc2ae8 || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af || >=4d44175aa5bb5f68772b1eb0306554812294ca52 <f4f699790590bd0896c48a71e9232a65198f92f0 | 1948e4f85b855618b5b9a27265f98d816f4cb7cb, 63ba12b664a2cd3220ed43e22c717715f4cc2ae8, 7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af, f4f699790590bd0896c48a71e9232a65198f92f0 |
| Linux/Linuxgeneric | 5.1 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: make nft_object rhltable per table The nft_object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft_obj_destroy() releases the object inmediately, this might lead to use-after-free of these objects that are being released. Make the existing rhltable per table to address this issue to deal with with the nft_rcv_nl_event() path too. Update nft_obj_lookup() to take the table as non-const, otherwise, compiler complains when passing the objname_ht to rhltable_lookup().
Quoted source text, attributed separately from HOL analysis.