Answer in brief
CVE-2022-49622 records a High severity (CVSS 7.8) vulnerability in netfilter: nf_tables: avoid skb access on nf_stolen. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), 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:5.19:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <0016d5d46d7440729a3132f61a8da3bf7f84e2ba || >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <e34b9ed96ce3b06c79bf884009b16961ca478f87 | 0016d5d46d7440729a3132f61a8da3bf7f84e2ba, e34b9ed96ce3b06c79bf884009b16961ca478f87 |
| Linux/Linuxgeneric | 4.10 | Not reported |
| Linux/Linuxgeneric | >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <348218a4601e93de4d1e9fab29837cf656e4bf99 || >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <453a67af8bd77463b33cb0336dd7f2341e332d29 || >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <0016d5d46d7440729a3132f61a8da3bf7f84e2ba || >=5efa0fc6d7f7930b18801f07cefae8eeacd6ac02 <e34b9ed96ce3b06c79bf884009b16961ca478f87 | 348218a4601e93de4d1e9fab29837cf656e4bf99, 453a67af8bd77463b33cb0336dd7f2341e332d29, 0016d5d46d7440729a3132f61a8da3bf7f84e2ba, e34b9ed96ce3b06c79bf884009b16961ca478f87 |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: avoid skb access on nf_stolen When verdict is NF_STOLEN, the skb might have been freed. When tracing is enabled, this can result in a use-after-free: 1. access to skb->nf_trace 2. access to skb->mark 3. computation of trace id 4. dump of packet payload To avoid 1, keep a cached copy of skb->nf_trace in the trace state struct. Refresh this copy whenever verdict is != STOLEN. Avoid 2 by skipping skb->mark access if verdict is STOLEN. 3 is avoided by precomputing the trace id. Only dump the packet when verdict is not "STOLEN".
Quoted source text, attributed separately from HOL analysis.