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| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2018-11-29 14:45:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-17 21:55:09 +0100 |
| commit | 2da7c7b22b33ea0e240b1627e10b76212cba94aa (patch) | |
| tree | 6d8a0d513980855c97b7d57e8d238835f2041a2f /tools/perf/scripts/python/netdev-times.py | |
| parent | ed7748bcf290ad8f80020217d832f458ac9bae7f (diff) | |
tun: forbid iface creation with rtnl ops
[ Upstream commit 35b827b6d06199841a83839e8bb69c0cd13a28be ]
It's not supported right now (the goal of the initial patch was to support
'ip link del' only).
Before the patch:
$ ip link add foo type tun
[ 239.632660] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[snip]
[ 239.636410] RIP: 0010:register_netdevice+0x8e/0x3a0
This panic occurs because dev->netdev_ops is not set by tun_setup(). But to
have something usable, it will require more than just setting
netdev_ops.
Fixes: f019a7a594d9 ("tun: Implement ip link del tunXXX")
CC: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions