Answer in brief
CVE-2022-49920 records a High severity (CVSS 7.8) vulnerability in netfilter: nf_tables: netlink notifier might race to release objects. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6001a930ce0378b62210d4f83583fc88a903d89d <1ffe7100411a8b9015115ce124cd6c9c9da6f8e3 || >=6001a930ce0378b62210d4f83583fc88a903d89d <e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0 || >=6001a930ce0378b62210d4f83583fc88a903d89d <d4bc8271db21ea9f1c86a1ca4d64999f184d4aae | 1ffe7100411a8b9015115ce124cd6c9c9da6f8e3, e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0, d4bc8271db21ea9f1c86a1ca4d64999f184d4aae |
| Linux/Linuxgeneric | 5.12 | Not reported |
Published upstream
May 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-49920 records a High severity (CVSS 7.8) vulnerability in netfilter: nf_tables: netlink notifier might race to release objects. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6001a930ce0378b62210d4f83583fc88a903d89d <1ffe7100411a8b9015115ce124cd6c9c9da6f8e3 || >=6001a930ce0378b62210d4f83583fc88a903d89d <e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0 || >=6001a930ce0378b62210d4f83583fc88a903d89d <d4bc8271db21ea9f1c86a1ca4d64999f184d4aae | 1ffe7100411a8b9015115ce124cd6c9c9da6f8e3, e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0, d4bc8271db21ea9f1c86a1ca4d64999f184d4aae |
| Linux/Linuxgeneric | 5.12 | Not reported |
Published upstream
May 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.
Quoted source text, attributed separately from HOL analysis.