Eric Dumazet 857f390dfd net: rose: fix netdev reference changes ...

[ Upstream commit 931027820e ]

Bernard reported that trying to unload rose module would lead
to infamous messages:

unregistered_netdevice: waiting for rose0 to become free. Usage count = xx

This patch solves the issue, by making sure each socket referring to
a netdevice holds a reference count on it, and properly releases it
in rose_release().

rose_dev_first() is also fixed to take a device reference
before leaving the rcu_read_locked section.

Following patch will add ref_tracker annotations to ease
future bug hunting.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Bernard Pidoux <f6bvp@free.fr>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-08-17 14:23:37 +02:00

..

af_rose.c

net: rose: fix netdev reference changes

2022-08-17 14:23:37 +02:00

Makefile

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rose_dev.c

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rose_in.c

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rose_link.c

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rose_loopback.c

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rose_out.c

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rose_route.c

net: rose: fix netdev reference changes

2022-08-17 14:23:37 +02:00

rose_subr.c

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rose_timer.c

net: rose: fix UAF bugs caused by timer handler

2022-07-07 17:53:25 +02:00

sysctl_net_rose.c

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