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Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
authorQiujun Huang <hqjagain@gmail.com>
Sun, 8 Mar 2020 09:45:27 +0000 (17:45 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 13 Apr 2020 08:48:13 +0000 (10:48 +0200)
commitb40f1ae359f20cb10ff262f2deda59bec3457eaf
treec59671285737e0f9096e434a5ef909df7e2fafe8tree | snapshot
parent7f5432c2f446454d1b9376327227aed7c97287f0commit | diff
Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl

commit 71811cac8532b2387b3414f7cd8fe9e497482864 upstream.

Needn't call 'rfcomm_dlc_put' here, because 'rfcomm_dlc_exists' didn't
increase dlc->refcnt.

Reported-by: syzbot+4496e82090657320efc6@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Suggested-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/bluetooth/rfcomm/tty.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git