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3.8 Low

CVE-2023-52584 In the Linux kernel, the following vulnerability has been resolved: spmi: mediatek: Fix UAF on device remove The pmif…

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.

Affected products and versions

Product Affected versions Fixed in
Linux 6.8 earliest → < 6.8 6.8
Linux 6.7 earliest → < 6.7.4 6.7.4
Linux 6.6 earliest → < 6.6.16 6.6.16
Linux 6.1 earliest → < 6.1.77 6.1.77
Linux 5.17 No fix stated
kernel 6.8 earliest → < 6.8 6.8
kernel 6.7 earliest → < 6.7.4 6.7.4
kernel 6.6 earliest → < 6.6.16 6.6.16
kernel 6.1 earliest → < 6.1.77 6.1.77
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Product Affected versions Fixed in
kernel 1 1da177e4c3f4 → latest 521f28eedd6b

References

Timeline

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