Answer in brief
CVE-2021-47616 records a High severity (CVSS 7.8) vulnerability in RDMA: Fix use-after-free in rxe_queue_cleanup. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=514aee660df493cd673154a6ba6bab745ec47b8c <acb53e47db1fbc7cd37ab10b46388f045a76e383 || >=514aee660df493cd673154a6ba6bab745ec47b8c <84b01721e8042cdd1e8ffeb648844a09cd4213e0 | acb53e47db1fbc7cd37ab10b46388f045a76e383, 84b01721e8042cdd1e8ffeb648844a09cd4213e0 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Jun 19, 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: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-47616 records a High severity (CVSS 7.8) vulnerability in RDMA: Fix use-after-free in rxe_queue_cleanup. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=514aee660df493cd673154a6ba6bab745ec47b8c <acb53e47db1fbc7cd37ab10b46388f045a76e383 || >=514aee660df493cd673154a6ba6bab745ec47b8c <84b01721e8042cdd1e8ffeb648844a09cd4213e0 | acb53e47db1fbc7cd37ab10b46388f045a76e383, 84b01721e8042cdd1e8ffeb648844a09cd4213e0 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Jun 19, 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: RDMA: Fix use-after-free in rxe_queue_cleanup On error handling path in rxe_qp_from_init() qp->sq.queue is freed and then rxe_create_qp() will drop last reference to this object. qp clean up function will try to free this queue one time and it causes UAF bug. Fix it by zeroing queue pointer after freeing queue in rxe_qp_from_init().
Quoted source text, attributed separately from HOL analysis.