Answer in brief
CVE-2021-46948 records a High severity (CVSS 7.5) vulnerability in sfc: farch: fix TX queue lookup in TX event handling. 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 7.5. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=12804793b17c0e19115a90d98f2f3df0cb79e233 <bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253 || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <35c7a83ad1bb1d48ae249346e61b1132bcbf9052 || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <e531db1ea6f98c9612cb2de093a107c7eadfb96c || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <83b09a1807415608b387c7bc748d329fefc5617e | bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253, 35c7a83ad1bb1d48ae249346e61b1132bcbf9052, e531db1ea6f98c9612cb2de093a107c7eadfb96c, 83b09a1807415608b387c7bc748d329fefc5617e |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Feb 27, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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: sfc: farch: fix TX queue lookup in TX event handling We're starting from a TXQ label, not a TXQ type, so efx_channel_get_tx_queue() is inappropriate (and could return NULL, leading to panics).
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-46948 records a High severity (CVSS 7.5) vulnerability in sfc: farch: fix TX queue lookup in TX event handling. 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 7.5. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=12804793b17c0e19115a90d98f2f3df0cb79e233 <bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253 || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <35c7a83ad1bb1d48ae249346e61b1132bcbf9052 || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <e531db1ea6f98c9612cb2de093a107c7eadfb96c || >=12804793b17c0e19115a90d98f2f3df0cb79e233 <83b09a1807415608b387c7bc748d329fefc5617e | bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253, 35c7a83ad1bb1d48ae249346e61b1132bcbf9052, e531db1ea6f98c9612cb2de093a107c7eadfb96c, 83b09a1807415608b387c7bc748d329fefc5617e |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Feb 27, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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: sfc: farch: fix TX queue lookup in TX event handling We're starting from a TXQ label, not a TXQ type, so efx_channel_get_tx_queue() is inappropriate (and could return NULL, leading to panics).
Quoted source text, attributed separately from HOL analysis.