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linux/drivers/usb/class
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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>
History 2024-04-03 15:19:50 +02:00
..
cdc-acm.c usb: cdc-acm: return correct error code on unsupported break 2024-01-25 15:27:47 -08:00
cdc-acm.h USB: cdc-acm: use CDC serial-state defines 2022-07-25 10:57:41 +02:00
cdc-wdm.c usb: cdc-wdm: close race between read and workqueue 2024-04-03 15:19:50 +02:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile USB: add SPDX identifiers to all remaining Makefiles 2017-11-07 15:53:48 +01:00
usblp.c USB: usblp: fix a hang in poll() if disconnected 2021-03-10 09:36:13 +01:00
usbtmc.c USB: usbtmc: Fix direction for 0-length ioctl control messages 2023-05-24 17:32:48 +01:00