CVE-2026-72494: linux
Vulnerability summary
CVE-2026-72494 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 18 · Related 18Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
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 <hanguidong02@gmail.com> 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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.24 pp
From 0.41% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 7.0.0-34.34
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 7.0.0-1013.13
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linuxAll versions (No fix recorded) | < 7.1.5-1
Linux1 product
- linux≥ 44d9e52977a1b90b0db1c7f8b197c218e9226520, < 706591cccdd3ac2c0ddc8c2ed6c89a6be9865826 | ≥ 44d9e52977a1b90b0db1c7f8b197c218e9226520, < bde37aed0724c0139dea177f3aae8d989b6babb1 | ≥ 44d9e52977a1b90b0db1c7f8b197c218e9226520, < d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd | 5.14
3 vendors · 159 products