CVE-2026-98397 is a vulnerability in Linux Kernel
Published on October 14, 2026
platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
In gpio_secondary_fwnode_init(), acpi_bus_find_device_by_name() returns a
device reference, but the local dev variable is declared with
__free(put_device), dropping the reference at the end of each iteration.
Meanwhile, devm_add_action_or_reset() saves the dev pointer for
gpio_secondary_unset() without incrementing its reference count, which
could lead to a use-after-free during driver teardown if the device is
released in the interim.
Acquire an explicit device reference with get_device() when registering
the devres action, and drop it with put_device() inside
gpio_secondary_unset().
Products Associated with CVE-2026-98397
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Affected Versions
Linux:- Version 1448c2d2ca5cc7f4ea6694e6bc809946de0a751c and below c62b6e081119f2ab03cfcafde1f83c0f50e8e726 is affected.
- Version 1448c2d2ca5cc7f4ea6694e6bc809946de0a751c and below 144113b0a70fa18033a747ee5db6803308f7688c is affected.
- Version 7.2 is affected.
- Before 7.2 is unaffected.
- Version 7.2.7, <= 7.2.* is unaffected.
- Version 7.3-rc3, <= * is unaffected.