============================= WARNING: suspicious RCU usage 5.19.0-rc2-syzkaller #0 Not tainted ----------------------------- net/ipv6/addrconf.c:5175 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor595/3613: #0: ffffffff8dbbe928 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xd0/0xc40 net/netlink/af_netlink.c:2223 stack backtrace: CPU: 0 PID: 3613 Comm: syz-executor595 Not tainted 5.19.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 in6_dump_addrs+0x18af/0x1bd0 net/ipv6/addrconf.c:5175 inet6_dump_addr+0x1428/0x1540 net/ipv6/addrconf.c:5300 netlink_dump+0x608/0xc40 net/netlink/af_netlink.c:2275 __netlink_dump_start+0x542/0x710 net/netlink/af_netlink.c:2380 netlink_dump_start include/linux/netlink.h:245 [inline] rtnetlink_rcv_msg+0xc07/0xea0 net/core/rtnetlink.c:6046