ACPI: button: Fix ACPI GPE handler leak during removal
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.18.57, 7.0.12
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: ACPI: button: Fix ACPI GPE handler leak during removal Commit a7e23ec17fee ("ACPI: button: Install notifier for system events as well") changed the ACPI notify handler type for ACPI buttons to ACPI_ALL_NOTIFY, but it forgot to update acpi_button_remove() to reflect that change. This leads to leaking the notify handler past driver removal, which may cause a kernel crash to occur if ACPI notify on the given device is triggered after removing the driver, and causes a subsequent probe of the given device with the same driver to fail. Address this by updating the acpi_remove_notify_handler() call in acpi_button_remove() as appropriate.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From a7e23ec17feecc7bac0d500cea900cace7b50129 · fixed in c85f325d9ec3116b0d4ee9d5b76c26aea0ad5ce0; From a7e23ec17feecc7bac0d500cea900cace7b50129 · fixed in 614cb8c26c5aa53196ee9b211b76ee618b147d32; From a7e23ec17feecc7bac0d500cea900cace7b50129 · fixed in fe80251152fed5b185f795ef2cd9f7fe9c3162e0
- Linux Linux
6.15
- KernelLinux
From 6.15.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.0.12