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Vulnerability record · CVE-2023-52584 · published 6 March 2024

CVE-2023-52584: Linux kernel use after free vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: spmi: mediatek: Fix UAF on device remove The pmif driver data that contains the clocks is allocated along with spmi_controller. On device remove, spmi_controller will be freed first, and then devres , including the clocks, will be cleanup. This leads to UAF because putting the clocks will access the clocks in the pmif driver data, which is already freed along with spmi_controller. This can be reproduced by enabling DEBUG_TEST_DRIVER_REMOVE and building the kernel with KASAN. Fix the UAF issue by using unmanaged clk_bulk_get() and putting the clocks before freeing spmi_controller.

3.8 CVSS 3.1 Low EPSS 0.56% · top 55.5% CWE-416 · Use after free
3.8CVSS 3.1 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: spmi: mediatek: Fix UAF on device remove The pmif driver data that contains the clocks is allocated along with spmi_controller. On device remove, spmi_controller will be freed first, and then devres , including the clocks, will be cleanup. This leads to UAF because putting the clocks will access the clocks in the pmif driver data, which is already freed along with spmi_controller. This can be reproduced by enabling DEBUG_TEST_DRIVER_REMOVE and building the kernel with KASAN. Fix the UAF issue by using unmanaged clk_bulk_get() and putting the clocks before freeing spmi_controller.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/521f28eedd6b14228c46e3b81e3bf9b90c2818d8 Patch
https://git.kernel.org/stable/c/9a3881b1f07db1bb55cb0108e6f05cfd027eaf2e Patch
https://git.kernel.org/stable/c/e821d50ab5b956ed0effa49faaf29912fd4106d9 Patch
https://git.kernel.org/stable/c/f8dcafcb54632536684336161da8bdd52120f95e Patch
https://git.kernel.org/stable/c/521f28eedd6b14228c46e3b81e3bf9b90c2818d8 Patch
https://git.kernel.org/stable/c/9a3881b1f07db1bb55cb0108e6f05cfd027eaf2e Patch
https://git.kernel.org/stable/c/e821d50ab5b956ed0effa49faaf29912fd4106d9 Patch
https://git.kernel.org/stable/c/f8dcafcb54632536684336161da8bdd52120f95e Patch

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Source: NIST National Vulnerability Database (record CVE-2023-52584), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.