CVE-2023-53515

HIGH EPSS 3.6%
Published Oct 1, 20259mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 1, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 20

VendorProductVersionRange
linuxlinux_kernel*≥4.15.1  –  <4.19.293
linuxlinux_kernel*≥4.20  –  <5.4.255
linuxlinux_kernel*≥5.5  –  <5.10.192
linuxlinux_kernel*≥5.11  –  <5.15.128
linuxlinux_kernel*≥5.16  –  <6.1.47
linuxlinux_kernel*≥6.2  –  <6.4.12
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel4.15any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any
linuxlinux_kernel6.5any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674
    Patch