====================================== | [ 37.380538][ T288] 1 lock held by nft/288: | [ 37.380668][ T288] #0: ffff88800630eec8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid (./include/linux/jiffies.h:101 net/netfilter/nf_tables_api.c:10954) nf_tables | [ 37.381102][ T288] | [ 37.381102][ T288] stack backtrace: [ 37.381612][ T288] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 37.381977][ T288] Call Trace: [ 37.382120][ T288] [ 37.382217][ T288] dump_stack_lvl (lib/dump_stack.c:123) [ 37.382400][ T288] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) [ 37.382582][ T288] nft_set_lookup.part.0 (net/netfilter/nf_tables_api.c:4467) nf_tables [ 37.382814][ T288] nf_tables_newset (net/netfilter/nf_tables_api.c:5230) nf_tables [ 37.383051][ T288] ? __pfx_nf_tables_newset (net/netfilter/nf_tables_api.c:5072) nf_tables [ 37.383291][ T288] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 37.383471][ T288] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) [ 37.383650][ T288] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 37.383831][ T288] ? __nla_validate_parse (lib/nlattr.c:638) [ 37.384007][ T288] nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:524) [ 37.384200][ T288] ? __pfx_nfnetlink_rcv_batch (net/netfilter/nfnetlink.c:373) [ 37.384382][ T288] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) [ 37.384558][ T288] ? find_stack (lib/stackdepot.c:552 (discriminator 1)) [ 37.384744][ T288] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.385020][ T288] ? validate_chain (kernel/locking/lockdep.c:3797 kernel/locking/lockdep.c:3817 kernel/locking/lockdep.c:3872) [ 37.385198][ T288] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) [ 37.385383][ T288] ? find_held_lock (kernel/locking/lockdep.c:5315) [ 37.385548][ T288] ? __lock_release (kernel/locking/lockdep.c:5501) [ 37.385708][ T288] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) [ 37.385879][ T288] nfnetlink_rcv (net/netfilter/nfnetlink.c:647 net/netfilter/nfnetlink.c:665) [ 37.386047][ T288] ? __pfx_nfnetlink_rcv (net/netfilter/nfnetlink.c:651) [ 37.386214][ T288] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 37.386388][ T288] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) [ 37.386563][ T288] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) [ 37.386734][ T288] netlink_sendmsg (net/netlink/af_netlink.c:1901) [ 37.386899][ T288] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) [ 37.387061][ T288] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) [ 37.387237][ T288] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) [ 37.387403][ T288] ? __pfx_____sys_sendmsg (net/socket.c:2553) [ 37.387569][ T288] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) [ 37.387790][ T288] ___sys_sendmsg (net/socket.c:2663) [ 37.387950][ T288] ? __lock_release (kernel/locking/lockdep.c:5501) [ 37.388114][ T288] ? __pfx____sys_sendmsg (net/socket.c:2650) [ 37.388284][ T288] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 37.388451][ T288] ? lock_acquire (kernel/locking/lockdep.c:5798) [ 37.388610][ T288] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 37.388774][ T288] ? __might_fault (mm/memory.c:6705 mm/memory.c:6698) [ 37.388941][ T288] ? do_sock_getsockopt (net/socket.c:2388) [ 37.389102][ T288] ? do_sock_setsockopt (net/socket.c:2303) [ 37.389268][ T288] ? __pfx_do_sock_getsockopt (net/socket.c:2374) [ 37.389435][ T288] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) [ 37.389567][ T288] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) [ 37.389729][ T288] ? __pfx___sys_sendmsg (net/socket.c:2678) [ 37.389893][ T288] ? __pfx___sys_getsockopt (net/socket.c:2415) [ 37.390069][ T288] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 37.390233][ T288] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 37.390443][ T288] RIP: 0033:0x7f89599a87b7 [ 37.390623][ T288] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 37.391177][ T288] RSP: 002b:00007ffee2bb02d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.391430][ T288] RAX: ffffffffffffffda RBX: 00007ffee2bc14d0 RCX: 00007f89599a87b7 [ 37.391679][ T288] RDX: 0000000000000000 RSI: 00007ffee2bc1390 RDI: 0000000000000005 [ 37.391921][ T288] RBP: 00007ffee2bc1480 R08: 00007ffee2bb02bc R09: 00007ffee2bb02e0 [ 37.392160][ T288] R10: 00007f8959861708 R11: 0000000000000246 R12: 00007ffee2bc13d0 Finger prints: lockdep_rcu_suspicious:nf_tables_newset:nfnetlink_rcv_batch:nfnetlink_rcv:netlink_unicast