CVE-2026-90308

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Source
https://cve.org/CVERecord?id=CVE-2026-90308
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90308.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90308
Downstream
Published
2026-09-17T16:08:29Z
Modified
2026-09-19T03:47:25Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
RDMA/erdma: Hold QP references for AE and CM processing
Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/erdma: Hold QP references for AE and CM processing

AE QP fatal events and iWARP CM paths load QPs from dev->qp_xa and then use or reference them outside the xarray lock. erdma_destroy_qp() can drop the destroy-path reference and free QP resources while such a lookup is in flight.

Add erdma_qp_get_by_qpn() to acquire a kref under the xarray lock with kref_get_unless_zero(). Remove the QP from the xarray before dropping the destroy-path reference so no new lookup can acquire it while destruction waits for existing users.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90308.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
155055771704f8cbb5c176a4309b7dc30a50450c
Fixed
6e32f84b63c054e09392153125d7202abab2d14b
Fixed
ec987c0654651036dad6a42f7fa2a6d7c16a3687
Fixed
c92686867638cda954fdb2bdbac8a75e3aa6eaae
Fixed
a52eeff32024f190b3bdc99088c7becccd4fa60b

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90308.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.52
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90308.json"