In the Linux kernel, the following vulnerability has been resolved:
nvdimm/bus: Fix potential use after free in asynchronous initialization
Dingisoul with KASAN reports a use after free if device_add() fails in
nd_async_device_register().
Commit b6eae0f61db2 ("libnvdimm: Hold reference on parent while
scheduling async init") correctly added a reference on the parent device
to be held until asynchronous initialization was complete. However, if
device_add() results in an allocation failure the ref count of the
device drops to 0 prior to the parent pointer being accessed. Thus
resulting in use after free.
The bug bot AI correctly identified the fix. Save a reference to the
parent pointer to be used to drop the parent reference regardless of the
outcome of device_add().
References
Configurations
Configuration 1 (hide)
|
History
20 May 2026, 12:54
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-416 | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/2c638259ad750833fd46a0cf57672a618542d84c - Patch | |
| References | () https://git.kernel.org/stable/c/6fc36c2a925ceaba203eb13d75a8f0879a2c121b - Patch | |
| References | () https://git.kernel.org/stable/c/84af19855d1abdee3c9d57c0684e2868e391793c - Patch | |
| References | () https://git.kernel.org/stable/c/9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d - Patch | |
| References | () https://git.kernel.org/stable/c/a226e5b49e5fe8c98b14f8507de670189d191348 - Patch | |
| References | () https://git.kernel.org/stable/c/a36cf138500e56f50db9f9a33222df6969b38326 - Patch | |
| References | () https://git.kernel.org/stable/c/a8aec14230322ed8f1e8042b6d656c1631d41163 - Patch | |
| References | () https://git.kernel.org/stable/c/e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
18 Apr 2026, 09:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
03 Apr 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-03 16:16
Updated : 2026-05-20 12:54
NVD link : CVE-2026-31399
Mitre link : CVE-2026-31399
CVE.ORG link : CVE-2026-31399
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free
