Daniel Starke 73defa00a7 tty: n_gsm: fix missing explicit ldisc flush ...

commit 17eac65202 upstream.

In gsm_cleanup_mux() the muxer is closed down and all queues are removed.
However, removing the queues is done without explicit control of the
underlying buffers. Flush those before freeing up our queues to ensure
that all outgoing queues are cleared consistently. Otherwise, a new mux
connection establishment attempt may time out while the underlying tty is
still busy sending out the remaining data from the previous connection.

Fixes: e1eaea46bb ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220414094225.4527-10-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-05-09 09:14:43 +02:00

..

hvc

tty: hvc: fix return value of __setup handler

2022-04-08 14:23:50 +02:00

ipwireless

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

serdev

Merge tag 'tty-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2021-09-01 09:51:16 -07:00

serial

serial: 8250: Correct the clock for EndRun PTP/1588 PCIe device

2022-05-09 09:14:30 +02:00

vt

vt_ioctl: add array_index_nospec to VT_ACTIVATE

2022-02-16 12:56:33 +01:00

amiserial.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

ehv_bytechan.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

goldfish.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

Kconfig

Merge tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2021-07-09 10:19:13 -07:00

Makefile

tty: remove broken r3964 line discipline

2021-05-13 16:57:15 +02:00

mips_ejtag_fdc.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

moxa.c

tty: moxa: use semi-colons instead of commas

2021-08-26 14:48:07 +02:00

moxa.h

tty: fix spelling mistake

2020-06-27 16:21:20 +02:00

mxser.c

mxser: fix xmit_buf leak in activate when LSR == 0xff

2022-04-08 14:23:43 +02:00

n_gsm.c

tty: n_gsm: fix missing explicit ldisc flush

2022-05-09 09:14:43 +02:00

n_hdlc.c

tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous

2021-12-22 09:32:45 +01:00

n_null.c

tty: make tty_ldisc_ops a param in tty_unregister_ldisc

2021-05-13 16:57:16 +02:00

n_tty.c

tty: n_tty: do not look ahead for EOL character past the end of the buffer

2022-02-23 12:03:15 +01:00

nozomi.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

pty.c

tty: pty: correct function name pty_resize()

2021-05-20 16:33:06 +02:00

synclink_gt.c

tty: synclink_gt: rename a conflicting function name

2021-09-14 10:51:37 +02:00

sysrq.c

tty: replace in_irq() with in_hardirq()

2021-08-16 19:01:52 +02:00

tty_audit.c

tty: audit: move some local functions out of tty.h

2021-04-15 10:24:58 +02:00

tty_baudrate.c

tty: tty_baudrate: Fix coding style issues of block comments

2021-05-13 18:29:12 +02:00

tty_buffer.c

tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc

2021-11-25 09:48:28 +01:00

tty_io.c

tty: Fix data race between tiocsti() and flush_to_ldisc()

2021-08-26 14:51:38 +02:00

tty_ioctl.c

tty: make tty_get_{char,frame}_size available

2021-06-15 14:03:26 +02:00

tty_jobctrl.c

tty: tty_jobctrl: Fix 2 incorrectly documented functions

2021-05-20 17:06:15 +02:00

tty_ldisc.c

tty: unexport tty_ldisc_release

2021-09-14 11:18:47 +02:00

tty_ldsem.c

locking/lockdep: Remove unused @nested argument from lock_release()

2019-10-09 12:46:10 +02:00

tty_mutex.c

tty: move some internal tty lock enums and functions out of tty.h

2021-04-15 10:26:58 +02:00

tty_port.c

tty: tty_port: Fix coding style issues of block comments

2021-05-13 18:29:13 +02:00

tty.h

tty: clean include/linux/tty.h up

2021-04-15 10:32:17 +02:00

ttynull.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00

vcc.c

tty: drop put_tty_driver

2021-07-27 12:17:21 +02:00