CVE-2026-31399

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().
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*

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 - () https://git.kernel.org/stable/c/2c638259ad750833fd46a0cf57672a618542d84c - Patch
References () https://git.kernel.org/stable/c/6fc36c2a925ceaba203eb13d75a8f0879a2c121b - () https://git.kernel.org/stable/c/6fc36c2a925ceaba203eb13d75a8f0879a2c121b - Patch
References () https://git.kernel.org/stable/c/84af19855d1abdee3c9d57c0684e2868e391793c - () https://git.kernel.org/stable/c/84af19855d1abdee3c9d57c0684e2868e391793c - Patch
References () https://git.kernel.org/stable/c/9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d - () https://git.kernel.org/stable/c/9a0fb16ba5b372465a3a1ecd761c6fa911a4ab4d - Patch
References () https://git.kernel.org/stable/c/a226e5b49e5fe8c98b14f8507de670189d191348 - () https://git.kernel.org/stable/c/a226e5b49e5fe8c98b14f8507de670189d191348 - Patch
References () https://git.kernel.org/stable/c/a36cf138500e56f50db9f9a33222df6969b38326 - () https://git.kernel.org/stable/c/a36cf138500e56f50db9f9a33222df6969b38326 - Patch
References () https://git.kernel.org/stable/c/a8aec14230322ed8f1e8042b6d656c1631d41163 - () https://git.kernel.org/stable/c/a8aec14230322ed8f1e8042b6d656c1631d41163 - Patch
References () https://git.kernel.org/stable/c/e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e - () https://git.kernel.org/stable/c/e48bf8f1d2b12c1c5ba1f609edbd4cde5dadc20e - Patch
CVSS v2 : unknown
v3 : unknown
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
  • () https://git.kernel.org/stable/c/6fc36c2a925ceaba203eb13d75a8f0879a2c121b -
  • () https://git.kernel.org/stable/c/a36cf138500e56f50db9f9a33222df6969b38326 -

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