In the Linux kernel, the following vulnerability has been resolved:
virtio-mmio: don't break lifecycle of vm_dev
vm_dev has a separate lifecycle because it has a 'struct device'
embedded. Thus, having a release callback for it is correct.
Allocating the vm_dev struct with devres totally breaks this protection,
though. Instead of waiting for the vm_dev release callback, the memory
is freed when the platform_device is removed. Resulting in a
use-after-free when finally the callback is to be called.
To easily see the problem, compile the kernel with
CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs.
The fix is easy, don't use devres in this case.
Found during my research about object lifetime problems.
References
Configurations
Configuration 1 (hide)
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History
26 Jan 2026, 20:11
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc9:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc8:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:4.15:rc7:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| First Time |
Linux
Linux linux Kernel |
|
| CWE | CWE-416 | |
| References | () https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e - Patch | |
| References | () https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123 - Patch | |
| References | () https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a - Patch | |
| References | () https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e - Patch | |
| References | () https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a - Patch | |
| References | () https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41 - Patch | |
| References | () https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674 - Patch |
01 Oct 2025, 12:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-10-01 12:15
Updated : 2026-01-26 20:11
NVD link : CVE-2023-53515
Mitre link : CVE-2023-53515
CVE.ORG link : CVE-2023-53515
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free