Thomas Weißschuh ae3419fbac vc_screen: don't clobber return value in vcs_read ... Commit 226fae124b ("vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF") moved the call to vcs_vc() into the loop. While doing this it also moved the unconditional assignment of ret = -ENXIO; This unconditional assignment was valid outside the loop but within it it clobbers the actual value of ret. To avoid this only assign "ret = -ENXIO" when actually needed. [ Also, the 'goto unlock_out" needs to be just a "break", so that it does the right thing when it exits on later iterations when partial success has happened - Linus ] Reported-by: Storm Dragon <stormdragon2976@gmail.com> Link: https://lore.kernel.org/lkml/Y%2FKS6vdql2pIsCiI@hotmail.com/ Fixes: 226fae124b ("vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF") Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/lkml/64981d94-d00c-4b31-9063-43ad0a384bde@t-8ch.de/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2023-02-27 18:35:28 -08:00
..
hvc	hvcs: Synchronize hotplug remove with port free	2023-02-08 13:09:15 +01:00
ipwireless
serdev	driver core: make struct device_type.uevent() take a const *	2023-01-27 13:45:36 +01:00
serial	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
vt	vc_screen: don't clobber return value in vcs_read	2023-02-27 18:35:28 -08:00
amiserial.c	tty: Call ->dtr_rts() parameter active consistently	2023-01-19 16:04:35 +01:00
ehv_bytechan.c
goldfish.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c	tty: moxa: Rename dtr/rts parameters/variables to active	2023-01-19 16:04:35 +01:00
mxser.c	tty: Call ->dtr_rts() parameter active consistently	2023-01-19 16:04:35 +01:00
n_gsm.c	tty: n_gsm: add keep alive support	2023-02-16 13:50:50 +01:00
n_hdlc.c
n_null.c
n_tty.c	n_tty: Rename tail to old_tail in n_tty_read()	2022-11-22 17:51:34 +01:00
nozomi.c
pty.c
rpmsg_tty.c
synclink_gt.c	tty: Call ->dtr_rts() parameter active consistently	2023-01-19 16:04:35 +01:00
sysrq.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
tty_audit.c
tty_baudrate.c
tty_buffer.c	tty: Convert tty_buffer flags to bool	2022-11-09 13:02:16 +01:00
tty_io.c	tty: fix out-of-bounds access in tty_driver_lookup_tty()	2023-01-19 15:04:56 +01:00
tty_ioctl.c	tty: Return bool from tty_termios_hw_change()	2023-01-19 16:04:35 +01:00
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c	tty: Convert ->dtr_rts() to take bool argument	2023-01-19 16:04:35 +01:00
tty.h
ttynull.c
vcc.c