CVE-2023-53454

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

HID: multitouch: Correct devm device reference for hidinput input_dev name

Reference the HID device rather than the input device for the devm allocation of the input_dev name. Referencing the input_dev would lead to a use-after-free when the input_dev was unregistered and subsequently fires a uevent that depends on the name. At the point of firing the uevent, the name would be freed by devres management.

Use devm_kasprintf to simplify the logic for allocating memory and formatting the input_dev name string.

Affected Software

References

• https://git.kernel.org/stable/c/15ec7cb55e7d88755aa01d44a7a1015a42bfce86
• https://git.kernel.org/stable/c/1d7833db9fd118415dace2ca157bfa603dec9c8c
• https://git.kernel.org/stable/c/2763732ec1e68910719c75b6b896e11b6d3d622b
• https://git.kernel.org/stable/c/39c70c19456e50dcb3abfe53539220dff0490f1d
• https://git.kernel.org/stable/c/4794394635293a3e74591351fff469cea7ad15a2
• https://git.kernel.org/stable/c/ac0d389402a6ff9ad92cea02c2d8c711483b91ab
• https://git.kernel.org/stable/c/b70ac7849248ec8128fa12f86e3655ba38838f29
• https://git.kernel.org/stable/c/dde88ab4e45beb60b217026207aa9c14c88d71ab
• https://git.kernel.org/stable/c/df7ca43fe090e1a56c216c8ebc106ef5fd49afc6