In the Linux kernel, the following vulnerability has been resolved:
idpf: fix double free and use-after-free in aux device error paths
When auxiliary_device_add() fails in idpf_plug_vport_aux_dev() or
idpf_plug_core_aux_dev(), the err_aux_dev_add label calls
auxiliary_device_uninit() and falls through to err_aux_dev_init. The
uninit call will trigger put_device(), which invokes the release
callback (idpf_vport_adev_release / idpf_core_adev_release) that frees
iadev. The fall-through then reads adev->id from the freed iadev for
ida_free() and double-frees iadev with kfree().
Free the IDA slot and clear the back-pointer before uninit, while adev
is still valid, then return immediately.
Commit 65637c3a1811 ("idpf: fix UAF in RDMA core aux dev deinitialization")
fixed the same use-after-free in the matching unplug path in this file but
missed both probe error paths.
References
Configurations
Configuration 1 (hide)
|
History
08 Jul 2026, 03:56
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
|
| References | () https://git.kernel.org/stable/c/6c77b9510829a424d1b74409b7db9456e3522871 - Patch | |
| References | () https://git.kernel.org/stable/c/722b91d5086a249318c9d0e2b36aeac80ba8c808 - Patch | |
| References | () https://git.kernel.org/stable/c/f319de7074e1728a9f9ff7134257360c694ec2b2 - Patch | |
| CWE | CWE-415 | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
26 Jun 2026, 20:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-26 20:17
Updated : 2026-07-08 03:56
NVD link : CVE-2026-53286
Mitre link : CVE-2026-53286
CVE.ORG link : CVE-2026-53286
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-415
Double Free