HID: asus: use spinlock to safely schedule workers

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commit 4ab3a086d1 upstream.

Use spinlocks to deal with workers introducing a wrapper
asus_schedule_work(), and several spinlock checks.
Otherwise, asus_kbd_backlight_set() may schedule led->work after the
structure has been freed, causing a use-after-free.

Fixes: af22a610bc ("HID: asus: support backlight on USB keyboards")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Link: https://lore.kernel.org/r/20230125-hid-unregister-leds-v4-5-7860c5763c38@diag.uniroma1.it
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Stefan Ghinea <stefan.ghinea@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pietro Borrello 2023-02-12 19:00:03 +00:00 • committed by Greg Kroah-Hartman

parent 7fd279b821

commit ee907829b3

1 changed files with 11 additions and 4 deletions

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drivers/hid/hid-asus.c

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