Alok Tiwari 98c9d88404 genetlink: fix genl_bind() invoking bind() after -EPERM ... [ Upstream commit 1dbfb03632 ] Per family bind/unbind callbacks were introduced to allow families to track multicast group consumer presence, e.g. to start or stop producing events depending on listeners. However, in genl_bind() the bind() callback was invoked even if capability checks failed and ret was set to -EPERM. This means that callbacks could run on behalf of unauthorized callers while the syscall still returned failure to user space. Fix this by only invoking bind() after "if (ret) break;" check i.e. after permission checks have succeeded. Fixes: 3de21a8990 ("genetlink: Add per family bind/unbind callbacks") Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Link: https://patch.msgid.link/20250905135731.3026965-1-alok.a.tiwari@oracle.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-09-19 16:35:48 +02:00
..
af_netlink.c	net: better track kernel sockets lifetime	2025-08-20 18:30:56 +02:00
af_netlink.h	netlink: terminate outstanding dump on socket close	2024-11-07 13:45:34 -08:00
diag.c	netlink: fix netlink_diag_dump() return value	2024-02-26 11:46:12 +00:00
genetlink.c	genetlink: fix genl_bind() invoking bind() after -EPERM	2025-09-19 16:35:48 +02:00
genetlink.h	netlink: create a new header for internal genetlink symbols	2024-04-01 21:44:34 -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	netlink: add variable-length / auto integers	2023-10-20 11:43:35 +01:00