Oliver Neukum 916cd2fcbc usb: cdc-wdm: close race between read and workqueue ...

commit 339f83612f upstream.

wdm_read() cannot race with itself. However, in
service_outstanding_interrupt() it can race with the
workqueue, which can be triggered by error handling.

Hence we need to make sure that the WDM_RESPONDING
flag is not just only set but tested.

Fixes: afba937e54 ("USB: CDC WDM driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20240314115132.3907-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-04-03 15:19:50 +02:00

..

cdc-acm.c

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cdc-acm.h

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cdc-wdm.c

usb: cdc-wdm: close race between read and workqueue

2024-04-03 15:19:50 +02:00

Kconfig

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Makefile

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usblp.c

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usbtmc.c

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