============================= WARNING: suspicious RCU usage 5.16.0-syzkaller #0 Not tainted ----------------------------- include/net/bonding.h:349 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-executor.0/4097: #0: ffff8880761b2830 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff8880761b2830 (sk_lock-AF_INET){+.+.}-{0:0}, at: sock_setsockopt+0x192/0x2330 net/core/sock.c:1043 stack backtrace: CPU: 0 PID: 4097 Comm: syz-executor.0 Not tainted 5.16.0-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+0x57/0x7d lib/dump_stack.c:106 bond_option_active_slave_get_rcu include/net/bonding.h:349 [inline] bond_ethtool_get_ts_info+0x25a/0x2d0 drivers/net/bonding/bond_main.c:5383 ethtool_get_phc_vclocks+0x8b/0xf0 net/ethtool/common.c:565 sock_timestamping_bind_phc net/core/sock.c:846 [inline] sock_set_timestamping+0x23f/0x5d0 net/core/sock.c:893 sock_setsockopt+0x429/0x2330 net/core/sock.c:1198 __sys_setsockopt+0x336/0x470 net/socket.c:2176 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xb5/0x150 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9bbd8020e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9bbcf77168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f9bbd914f60 RCX: 00007f9bbd8020e9 RDX: 0000000000000041 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f9bbd85c08d R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc9cda672f R14: 00007f9bbcf77300 R15: 0000000000022000