linux/net/netlink
Jiri Pirko 8f1948bdcf genetlink: hold read cb_lock during iteration of genl_fam_idr in genl_bind()
In genl_bind(), currently genl_lock and write cb_lock are taken
for iteration of genl_fam_idr and processing of static values
stored in struct genl_family. Take just read cb_lock for this task
as it is sufficient to guard the idr and the struct against
concurrent genl_register/unregister_family() calls.

This will allow to run genl command processing in genl_rcv() and
mnl_socket_setsockopt(.., NETLINK_ADD_MEMBERSHIP, ..) in parallel.

Reported-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20220825081940.1283335-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-26 18:47:21 -07:00
..
af_netlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-05-12 16:15:30 -07:00
af_netlink.h netlink: Add new socket option to enable strict checking on dumps 2018-10-08 10:39:04 -07:00
diag.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
genetlink.c genetlink: hold read cb_lock during iteration of genl_fam_idr in genl_bind() 2022-08-26 18:47:21 -07:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile netlink: add infrastructure to expose policies to userspace 2020-04-30 17:51:42 -07:00
policy.c net: genl: fix error path memory leak in policy dumping 2022-08-18 10:20:48 -07:00