Answer in brief
CVE-2021-47368 records a High severity (CVSS 7.1) vulnerability in enetc: Fix illegal access when reading affinity_hint. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. 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 7.1. 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_kernel (generic), linux/linux_kernel (generic) and additional mapped packages. 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:5.15:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d4fd0404c1c95b17880f254ebfee3485693fa8ba <4c4c3052911b577920353a7646e4883d5da40c28 || >=d4fd0404c1c95b17880f254ebfee3485693fa8ba <6c3f1b741c6c2914ea120e3a5790d3e900152f7b || >=d4fd0404c1c95b17880f254ebfee3485693fa8ba <6f329d9da2a5ae032fcde800a99b118124ed5270 || >=d4fd0404c1c95b17880f254ebfee3485693fa8ba <7237a494decfa17d0b9d0076e6cee3235719de90 | 4c4c3052911b577920353a7646e4883d5da40c28, 6c3f1b741c6c2914ea120e3a5790d3e900152f7b, 6f329d9da2a5ae032fcde800a99b118124ed5270, 7237a494decfa17d0b9d0076e6cee3235719de90 |
| Linux/Linuxgeneric | 5.1 | Not reported |
| linux/linux_kernelgeneric | >=d4fd0404c1c9 <6c3f1b741c6c | 6c3f1b741c6c |
| linux/linux_kernelgeneric | >=d4fd0404c1c9 <6f329d9da2a5 | 6f329d9da2a5 |
| linux/linux_kernelgeneric | >=d4fd0404c1c9 <7237a494decf | 7237a494decf |
| linux/linux_kernelgeneric | 5.1 | Not reported |
| linux/linux_kernelgeneric | >=d4fd0404c1c9 <4c4c3052911b | 4c4c3052911b |
Published upstream
May 21, 2024
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: enetc: Fix illegal access when reading affinity_hint irq_set_affinity_hit() stores a reference to the cpumask_t parameter in the irq descriptor, and that reference can be accessed later from irq_affinity_hint_proc_show(). Since the cpu_mask parameter passed to irq_set_affinity_hit() has only temporary storage (it's on the stack memory), later accesses to it are illegal. Thus reads from the corresponding procfs affinity_hint file can result in paging request oops. The issue is fixed by the get_cpu_mask() helper, which provides a permanent storage for the cpumask_t parameter.
Quoted source text, attributed separately from HOL analysis.