Vulnerability Database

296,213

Total vulnerabilities in the database

CVE-2025-21856

In the Linux kernel, the following vulnerability has been resolved:

s390/ism: add release function for struct device

According to device_release() in /drivers/base/core.c, a device without a release function is a broken device and must be fixed.

The current code directly frees the device after calling device_add() without waiting for other kernel parts to release their references. Thus, a reference could still be held to a struct device, e.g., by sysfs, leading to potential use-after-free issues if a proper release function is not set.

  • Published: Mar 12, 2025
  • Updated: May 4, 2025
  • CVE: CVE-2025-21856
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
linux / linux_kernel 6.14-rc1 6.14-rc1.x
linux / linux_kernel 6.14-rc2 6.14-rc2.x
linux / linux_kernel 6.14-rc3 6.14-rc3.x
linux / linux_kernel 6.13 6.13.5
linux / linux_kernel 6.7 6.12.17
linux / linux_kernel 6.3 6.6.80