CVE-2023-52584
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.
Does this matter?
Lower severity and a low EPSS score (0.56%). Track it; it rarely justifies an emergency change on its own.
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
- 3.8 LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 0.56% probability · 45th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/521f28eedd6b14228c46e3b81e3bf9b90c2818d8Patch
- https://git.kernel.org/stable/c/9a3881b1f07db1bb55cb0108e6f05cfd027eaf2ePatch
- https://git.kernel.org/stable/c/e821d50ab5b956ed0effa49faaf29912fd4106d9Patch
- https://git.kernel.org/stable/c/f8dcafcb54632536684336161da8bdd52120f95ePatch
- https://git.kernel.org/stable/c/521f28eedd6b14228c46e3b81e3bf9b90c2818d8Patch
- https://git.kernel.org/stable/c/9a3881b1f07db1bb55cb0108e6f05cfd027eaf2ePatch
- https://git.kernel.org/stable/c/e821d50ab5b956ed0effa49faaf29912fd4106d9Patch
- https://git.kernel.org/stable/c/f8dcafcb54632536684336161da8bdd52120f95ePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.