ip_tables: iptables: counters copy to user failed while replacing table ip6_tables: ip6tables: counters copy to user failed while replacing table ============================= netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. WARNING: suspicious RCU usage 4.14.280-syzkaller #0 Not tainted ----------------------------- net/netfilter/nf_queue.c:244 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by ksoftirqd/1/17: #0: (rcu_callback){....}, at: [] __rcu_reclaim kernel/rcu/rcu.h:185 [inline] #0: (rcu_callback){....}, at: [] rcu_do_batch kernel/rcu/tree.c:2699 [inline] #0: (rcu_callback){....}, at: [] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] #0: (rcu_callback){....}, at: [] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] #0: (rcu_callback){....}, at: [] rcu_process_callbacks+0x84e/0x1180 kernel/rcu/tree.c:2946 #1: (&(&inst->lock)->rlock){+.-.}, at: [] spin_lock_bh include/linux/spinlock.h:322 [inline] #1: (&(&inst->lock)->rlock){+.-.}, at: [] nfqnl_flush+0x2f/0x2a0 net/netfilter/nfnetlink_queue.c:232 ip_tables: iptables: counters copy to user failed while replacing table stack backtrace: CPU: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 4.14.280-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nf_reinject+0x56e/0x700 net/netfilter/nf_queue.c:244 nfqnl_flush+0x1ab/0x2a0 net/netfilter/nfnetlink_queue.c:237 ====================================================== WARNING: the mand mount option is being deprecated and will be removed in v5.15! ====================================================== instance_destroy_rcu+0x19/0x30 net/netfilter/nfnetlink_queue.c:171 __rcu_reclaim kernel/rcu/rcu.h:195 [inline] rcu_do_batch kernel/rcu/tree.c:2699 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] rcu_process_callbacks+0x780/0x1180 kernel/rcu/tree.c:2946 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670 smpboot_thread_fn+0x5c1/0x920 kernel/smpboot.c:164 xt_physdev: using --physdev-out and --physdev-is-out are only supported in the FORWARD and POSTROUTING chains with bridged traffic. kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 ip6_tables: ip6tables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. ip_tables: iptables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. xt_physdev: using --physdev-out and --physdev-is-out are only supported in the FORWARD and POSTROUTING chains with bridged traffic. ip6_tables: ip6tables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. ip_tables: iptables: counters copy to user failed while replacing table xt_physdev: using --physdev-out and --physdev-is-out are only supported in the FORWARD and POSTROUTING chains with bridged traffic. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. ip6_tables: ip6tables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue