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| author |   Josh Elsasser <jelsasser@appneta.com> | 2019-01-26 14:38:33 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-01-29 11:29:55 -0800 |
| commit | 35edfdc77f683c8fd27d7732af06cf6489af60a5 (patch) | |
| tree | 5fbd727064cc731bb7ef1bccc2d4bb12de9863f1 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | net: b44: replace dev_kfree_skb_xxx by dev_consume_skb_xxx for drop profiles (diff) | |
| download | wireguard-linux-35edfdc77f683c8fd27d7732af06cf6489af60a5.tar.xz wireguard-linux-35edfdc77f683c8fd27d7732af06cf6489af60a5.zip | |
net: set default network namespace in init_dummy_netdev()
Assign a default net namespace to netdevs created by init_dummy_netdev().
Fixes a NULL pointer dereference caused by busy-polling a socket bound to
an iwlwifi wireless device, which bumps the per-net BUSYPOLLRXPACKETS stat
if napi_poll() received packets:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000190
IP: napi_busy_loop+0xd6/0x200
Call Trace:
sock_poll+0x5e/0x80
do_sys_poll+0x324/0x5a0
SyS_poll+0x6c/0xf0
do_syscall_64+0x6b/0x1f0
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Fixes: 7db6b048da3b ("net: Commonize busy polling code to focus on napi_id instead of socket")
Signed-off-by: Josh Elsasser <jelsasser@appneta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions