Pavel Skripkin 343406f9c1 net: caif: fix memory leak in ldisc_open ... [ Upstream commit 58af3d3d54 ] Syzbot reported memory leak in tty_init_dev(). The problem was in unputted tty in ldisc_open() static int ldisc_open(struct tty_struct *tty) { ... ser->tty = tty_kref_get(tty); ... result = register_netdevice(dev); if (result) { rtnl_unlock(); free_netdev(dev); return -ENODEV; } ... } Ser pointer is netdev private_data, so after free_netdev() this pointer goes away with unputted tty reference. So, fix it by adding tty_kref_put() before freeing netdev. Reported-and-tested-by: syzbot+f303e045423e617d2cad@syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-06-30 08:47:47 -04:00
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caif_hsi.c
caif_serial.c	net: caif: fix memory leak in ldisc_open	2021-06-30 08:47:47 -04:00
caif_spi.c
caif_spi_slave.c
caif_virtio.c
Kconfig
Makefile