CVE-2022-50190

spi: Fix simplification of devm_spi_register_controller

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Jun 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/34bab623ebfc08398499e463396b81abb4abe01e https://git.kernel.org/stable/c/3c6bd448442b6c3f6843ac70d57201a13478dd47 https://git.kernel.org/stable/c/43cc5a0afe4184a7fafe1eba32b5a11bb69c9ce0 https://git.kernel.org/stable/c/445fb9c19cf45bd9472fd9babaa31c5e6c7d2720