On Mon, Apr 26, 2021 at 12:28:31PM -0500, Tom Seewald wrote: > From: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > > commit bd8b82042269a95db48074b8bb400678dbac1815 upstream. > > Fuzzing uncovered race condition between sysfs code paths in usbip > drivers. Device connect/disconnect code paths initiated through > sysfs interface are prone to races if disconnect happens during > connect and vice versa. > > Use sysfs_lock to protect sysfs paths in vudc. > > Cc: stable@xxxxxxxxxxxxxxx # 4.14.x > Reported-and-tested-by: syzbot+a93fba6d384346a761e3@xxxxxxxxxxxxxxxxxxxxxxxxx > Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Link: https://lore.kernel.org/r/caabcf3fc87bdae970509b5ff32d05bb7ce2fb15.1616807117.git.skhan@xxxxxxxxxxxxxxxxxxx > Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Tom Seewald <tseewald@xxxxxxxxx> > --- > drivers/usb/usbip/vudc_dev.c | 1 + > drivers/usb/usbip/vudc_sysfs.c | 5 +++++ > 2 files changed, 6 insertions(+) Now queued up, thanks. greg k-h
