CVE-2023-54244

Summary

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

ACPI: EC: Fix oops when removing custom query handlers

When removing custom query handlers, the handler might still be used inside the EC query workqueue, causing a kernel oops if the module holding the callback function was already unloaded.

Fix this by flushing the EC query workqueue when removing custom query handlers.

Tested on a Acer Travelmate 4002WLMi

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < 130e3eac51912f2c866e7d035992ede25f8feac0affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < 0d528a7c421b1f1772fc1d29370b3b5fc0f42b19affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < ccae2233e9935a038a35fe8cfd703df905f700e7affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < 066b90bca755f0b876e7b027b75d1796861d6db0affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < f4a573eed6377d356f835a4b00099d5dacee0da0affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < 86a159fd5bdb01ec34b160cfda1a313b616d9302affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < fd2c99e81ae0dbdd62a154ef9c77fc01715cc020affected
LinuxLinuxa62e8f1978f49e52f87a711ff6711b323d4b12ff < e5b492c6bb900fcf9722e05f4a10924410e170c1affected
LinuxLinux1ff7b99e4983d9e93d25e98ba1ce303ad4e4909eaffected
LinuxLinux2.6.32.6 < 2.6.33affected
LinuxLinux2.6.33affected
LinuxLinux0 < 2.6.33unaffected
LinuxLinux4.14.316 <= 4.14.*unaffected
LinuxLinux4.19.284 <= 4.19.*unaffected
LinuxLinux5.4.244 <= 5.4.*unaffected
LinuxLinux5.10.181 <= 5.10.*unaffected
LinuxLinux5.15.113 <= 5.15.*unaffected
LinuxLinux6.1.30 <= 6.1.*unaffected
LinuxLinux6.3.4 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References