https://bugzilla.kernel.org/show_bug.cgi?id=197085
Bug ID: 197085
Summary: Memory leak due to double free of _CID repair
Product: ACPI
Version: 2.5
Kernel Version: unknown
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
Assignee: [email protected]
Reporter: [email protected]
Regression: No
https://patchwork.kernel.org/patch/9555103/
When acpi_ns_repair_CID() is called for a _CID which returns a package
of strings, it calls acpi_ns_repair_HID() for each of the package
elements. acpi_ns_repair_HID() calls acpi_ut_remove_reference() on the
original object, but acpi_ns_repair_CID() calls it again on return,
leading to a double free.
This problem was seen on a Acer TravelMate P449-G2-MG.
Thanks to Daniel Drake for helping investigating this problem.
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