CVE-2022-50190
In the Linux kernel, the following vulnerability has been resolved:
spi: Fix simplification of devm_spi_register_controller
This reverts commit 59ebbe40fb51 ("spi: simplify devm_spi_register_controller").
If devm_add_action() fails in devm_add_action_or_reset(), devm_spi_unregister() will be called, it decreases the refcount of 'ctlr->dev' to 0, then it will cause uaf in the drivers that calling spi_put_controller() in error path.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.13 | 5.15.61 |
| linux / linux_kernel | 5.16 | 5.18.18 |
| linux / linux_kernel | 5.19 | 5.19.2 |
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