Answer in brief
CVE-2026-74389 records a Unknown severity vulnerability in RDMA/hns: Fix log flood after cmd_mbox failure. 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9a4435375cd151e07c0c38fa601b00115986091b <7d9fbee252f84de3e6947a40eec01481c9d8afbb || >=9a4435375cd151e07c0c38fa601b00115986091b <66f44ec974ab372e4e1ee9eac4245237c94e8f68 || >=9a4435375cd151e07c0c38fa601b00115986091b <f3c9e84268e9fa613d40d6c138fb6969c35879b5 || >=9a4435375cd151e07c0c38fa601b00115986091b <bbd97d71e53e551890e4115ad9de46b5f2ac0858 | 7d9fbee252f84de3e6947a40eec01481c9d8afbb, 66f44ec974ab372e4e1ee9eac4245237c94e8f68, f3c9e84268e9fa613d40d6c138fb6969c35879b5, bbd97d71e53e551890e4115ad9de46b5f2ac0858 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix log flood after cmd_mbox failure hns_roce_cmd_mbox() is the command interface between driver and hardware. When hardware is abnormal, the unlimited error printings after hns_roce_cmd_mbox() failure will cause log flood and even system crash. Replace ibdev_err() and ibdev_warn() with their ratelimited versions in the error handling path after hns_roce_cmd_mbox() (and its wrappers hns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74389 records a Unknown severity vulnerability in RDMA/hns: Fix log flood after cmd_mbox failure. 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9a4435375cd151e07c0c38fa601b00115986091b <7d9fbee252f84de3e6947a40eec01481c9d8afbb || >=9a4435375cd151e07c0c38fa601b00115986091b <66f44ec974ab372e4e1ee9eac4245237c94e8f68 || >=9a4435375cd151e07c0c38fa601b00115986091b <f3c9e84268e9fa613d40d6c138fb6969c35879b5 || >=9a4435375cd151e07c0c38fa601b00115986091b <bbd97d71e53e551890e4115ad9de46b5f2ac0858 | 7d9fbee252f84de3e6947a40eec01481c9d8afbb, 66f44ec974ab372e4e1ee9eac4245237c94e8f68, f3c9e84268e9fa613d40d6c138fb6969c35879b5, bbd97d71e53e551890e4115ad9de46b5f2ac0858 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix log flood after cmd_mbox failure hns_roce_cmd_mbox() is the command interface between driver and hardware. When hardware is abnormal, the unlimited error printings after hns_roce_cmd_mbox() failure will cause log flood and even system crash. Replace ibdev_err() and ibdev_warn() with their ratelimited versions in the error handling path after hns_roce_cmd_mbox() (and its wrappers hns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.
Quoted source text, attributed separately from HOL analysis.