CVE-2026-98971
Received Received - Intake

GPIO ID Leak in Linux Kernel GPIO Exar Driver

Publication date: 2026-10-23

Last updated on: 2026-10-23

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: gpio: exar: initialize the ID before registering its cleanup devm_add_action_or_reset() invokes the cleanup action immediately when registering the action fails. gpio_exar_probe() currently stores the allocated ID in exar_gpio only after registering the action, so that failure makes exar_devm_ida_free() release ID 0. If the allocated ID is nonzero, this leaks that ID and can free ID 0 belonging to another device. Store the ID before registering the cleanup action so both the immediate failure path and normal device teardown release the correct allocation.

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Meta Information

Published
2026-10-23
Last Modified
2026-10-23
Generated
2026-10-23
EPSS Evaluated
N/A
NVD
CVE-2026-98971
EUVD
EUVD-2026-108765

Affected Vendors & Products

Showing 6 associated CPEs
Vendor Product Version / Range
Linux Linux 5300ebb695fa0672589ab191062392f686fca75d
Linux Linux 5300ebb695fa0672589ab191062392f686fca75d
Linux Linux 5300ebb695fa0672589ab191062392f686fca75d
Linux Linux 5300ebb695fa0672589ab191062392f686fca75d
Linux Linux 5300ebb695fa0672589ab191062392f686fca75d
Linux Linux 5.11

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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