CVE-2023-53758

Summary

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

spi: atmel-quadspi: Free resources even if runtime resume failed in .remove()

An early error exit in atmel_qspi_remove() doesn't prevent the device unbind. So this results in an spi controller with an unbound parent and unmapped register space (because devm_ioremap_resource() is undone). So using the remaining spi controller probably results in an oops.

Instead unregister the controller unconditionally and only skip hardware access and clk disable.

Also add a warning about resume failing and return zero unconditionally. The latter has the only effect to suppress a less helpful error message by the spi core.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 < f6974fb20499e3b6522daa7aec822aac11dfcf42affected
LinuxLinux4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 < 618770d4d8e40b7f8ed9eb5f210cd9164dfac47daffected
LinuxLinux4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 < 77806d7c9bebe40a8cdce2b8d30fbe6511745df8affected
LinuxLinux4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 < 9448bc1dee65f86c0fe64d9dea8b410af0586886affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.28 <= 6.1.*unaffected
LinuxLinux6.2.15 <= 6.2.*unaffected
LinuxLinux6.3.2 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References