kernel/linux.git/drivers/net/netdevsim/udp_tunnels.c, branch v6.6.133Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.1332025-02-08T08:52:30+00:00net: netdevsim: try to close UDP port harness races2025-02-08T08:52:30+00:00Jakub Kicinskikuba@kernel.org2025-01-22T22:45:03+00:00urn:sha1:b91034314ad24a5dcdd4739035e9f787a9030a9e
[ Upstream commit 50bf398e1ceacb9a7f85bd3bdca065ebe5cb6159 ]
syzbot discovered that we remove the debugfs files after we free
the netdev. Try to clean up the relevant dir while the device
is still around.
Reported-by: syzbot+2e5de9e3ab986b71d2bf@syzkaller.appspotmail.com
Fixes: 424be63ad831 ("netdevsim: add UDP tunnel port offload support")
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/20250122224503.762705-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
netdevsim: set .owner to THIS_MODULE2020-11-17T22:08:59+00:00Taehee Yooap420073@gmail.com2020-11-15T10:30:41+00:00urn:sha1:a5bbcbf29089a1252c201b1a7fd38151de355db9
If THIS_MODULE is not set, the module would be removed while debugfs is
being used.
It eventually makes kernel panic.
Fixes: 82c93a87bf8b ("netdevsim: implement couple of testing devlink health reporters")
Fixes: 424be63ad831 ("netdevsim: add UDP tunnel port offload support")
Fixes: 4418f862d675 ("netdevsim: implement support for devlink region and snapshots")
Fixes: d3cbb907ae57 ("netdevsim: add ACL trap reporting cookie as a metadata")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Link: https://lore.kernel.org/r/20201115103041.30701-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netdevsim: support the static IANA VXLAN port flag2020-09-28T19:50:12+00:00Jakub Kicinskikuba@kernel.org2020-09-26T00:56:47+00:00urn:sha1:dda751731ec9f273eb650e2cb42ecf92a7ae4bb0
Allow setting UDP_TUNNEL_NIC_INFO_STATIC_IANA_VXLAN.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
netdevsim: shared UDP tunnel port table support2020-09-28T19:50:12+00:00Jakub Kicinskikuba@kernel.org2020-09-26T00:56:42+00:00urn:sha1:dc9c07537cf200279c357b444a49df8c11f006fd
Add the ability to simulate a device with a shared UDP tunnel port
table.
Try to reject the configurations and actions which are not supported
by the core, so we don't get syzcaller etc. warning reports.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
netdevsim: add warnings on unexpected UDP tunnel port errors2020-09-28T19:50:12+00:00Jakub Kicinskikuba@kernel.org2020-09-26T00:56:41+00:00urn:sha1:860e9d328fa585aafda2ef09aa1b13986279cbe7
We should never see a removal of a port which is not in the table
or adding a port to an occupied entry in the table. To make sure
such errors don't escape the checks in the test script add a
warning/kernel spat.
Error injection will not trigger those, nor should it ever put
us in a bad state.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
netdevsim: add UDP tunnel port offload support2020-07-10T20:54:00+00:00Jakub Kicinskikuba@kernel.org2020-07-10T00:42:48+00:00urn:sha1:424be63ad831fbd5fb04eb6576de44f4aa7661e2
Add UDP tunnel port handlers to our fake driver so we can test
the core infra.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>