CVE-2022-50192
Description
In the Linux kernel, the following vulnerability has been resolved: spi: tegra20-slink: fix UAF in tegra_slink_remove() After calling spi_unregister_master(), the refcount of master will be decrease to 0, and it will be freed in spi_controller_release(), the device data also will be freed, so it will lead a UAF when using 'tspi'. To fix this, get the master before unregister and put it when finish using it.
How to fix
- linux linux_kernel5.15.61, 5.18.18, 5.19.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.15 ≤ v < 5.15.61, 5.16 ≤ v < 5.18.18, 5.19 ≤ v < 5.19.2 | 5.15.61, 5.18.18, 5.19.2 |
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