CVE-2026-72494
RDMA/irdma: Replace waitqueue and flag with completion
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Replace waitqueue and flag with completion The driver previously used a waitqueue along with an explicit request_done flag, but without proper barriers around request_done. An earlier patch by Gui-Dong Han <[email protected]> attempted to fix this by adding the missing memory barriers. Rather than adding the barriers, this patch replaces the waitqueue+flag with a completion, which is designed for this exact purpose.
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Update the Linux kernel to the latest stable version.
- Apply the specific patch for RDMA/irdma completion handling.
- Verify the driver uses completion instead of waitqueue and flag.
- Test for race conditions post-update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72494.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/bde37aed0724c0139dea177f3aae8d989b6babb1 | |
| https://git.kernel.org/stable/c/d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72494 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72494
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72494 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72494 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'bde37aed0724c0139dea177f3aae8d989b6babb1', 'versionType': 'git'}, {'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'd9c8c45e6d2f438a3c8e643ae78b59454fa0fadd', 'versionType': 'git'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'bde37aed0724c0139dea177f3aae8d989b6babb1', 'versionType': 'git'}, {'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'd9c8c45e6d2f438a3c8e643ae78b59454fa0fadd', 'versionType': 'git'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'bde37aed0724c0139dea177f3aae8d989b6babb1', 'versionType': 'git'}, {'status': 'affected', 'version': '44d9e52977a1b90b0db1c7f8b197c218e9226520', 'lessThan': 'd9c8c45e6d2f438a3c8e643ae78b59454fa0fadd', 'versionType': 'git'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/infiniband/hw/irdma/hw.c', 'drivers/infiniband/hw/irdma/main.h', 'drivers/infiniband/hw/irdma/utils.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Replace waitqueue and flag with completion The driver previously used a waitqueue along with an explicit request_done flag, but without proper barriers around request_done. An earlier patch by Gui-Dong Han <[email protected]> attempted to fix this by adding the missing memory barriers. Rather than adding the barriers, this patch replaces the waitqueue+flag with a completion, which is designed for this exact purpose. Added Reference https://git.kernel.org/stable/c/bde37aed0724c0139dea177f3aae8d989b6babb1 Added Reference https://git.kernel.org/stable/c/d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd