kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher ================================================================== BUG: KMSAN: uninit-value in bond_xmit_roundrobin drivers/net/bonding/bond_main.c:3858 [inline] BUG: KMSAN: uninit-value in __bond_start_xmit drivers/net/bonding/bond_main.c:4136 [inline] BUG: KMSAN: uninit-value in bond_start_xmit+0x1ab8/0x2b90 drivers/net/bonding/bond_main.c:4170 CPU: 0 PID: 13484 Comm: syz-executor6 Not tainted 4.19.0-rc1+ #40 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x14b/0x190 lib/dump_stack.c:113 kmsan_report+0x183/0x2b0 mm/kmsan/kmsan.c:956 __msan_warning+0x70/0xc0 mm/kmsan/kmsan_instr.c:645 bond_xmit_roundrobin drivers/net/bonding/bond_main.c:3858 [inline] __bond_start_xmit drivers/net/bonding/bond_main.c:4136 [inline] bond_start_xmit+0x1ab8/0x2b90 drivers/net/bonding/bond_main.c:4170 __netdev_start_xmit include/linux/netdevice.h:4287 [inline] netdev_start_xmit include/linux/netdevice.h:4296 [inline] xmit_one net/core/dev.c:3217 [inline] dev_hard_start_xmit+0x5df/0xc20 net/core/dev.c:3233 __dev_queue_xmit+0x2f35/0x3ab0 net/core/dev.c:3803 dev_queue_xmit+0x4b/0x60 net/core/dev.c:3836 packet_snd net/packet/af_packet.c:2925 [inline] packet_sendmsg+0x80ff/0x8c60 net/packet/af_packet.c:2950 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg net/socket.c:631 [inline] __sys_sendto+0x868/0xa30 net/socket.c:1786 __do_sys_sendto net/socket.c:1798 [inline] __se_sys_sendto+0x107/0x130 net/socket.c:1794 __x64_sys_sendto+0x6e/0x90 net/socket.c:1794 do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291 kernel msg: ebtables bug: please report to author: EBT_ENTRY_OR_ENTRIES shouldn't be set in distinguisher entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd161a28c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fd161a296d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00000000009300a0 R08: 0000000020000080 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d4968 R14: 00000000004c8f61 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:256 [inline] kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:181 kmsan_kmalloc+0x98/0x100 mm/kmsan/kmsan_hooks.c:91 kmsan_slab_alloc+0x10/0x20 mm/kmsan/kmsan_hooks.c:100 slab_post_alloc_hook mm/slab.h:446 [inline] slab_alloc_node mm/slub.c:2719 [inline] __kmalloc_node_track_caller+0x9e7/0x1160 mm/slub.c:4352 __kmalloc_reserve net/core/skbuff.c:138 [inline] __alloc_skb+0x2f5/0x9e0 net/core/skbuff.c:206 alloc_skb include/linux/skbuff.h:996 [inline] alloc_skb_with_frags+0x1d0/0xac0 net/core/skbuff.c:5276 sock_alloc_send_pskb+0xb47/0x1170 net/core/sock.c:2082 packet_alloc_skb net/packet/af_packet.c:2779 [inline] packet_snd net/packet/af_packet.c:2870 [inline] packet_sendmsg+0x6599/0x8c60 net/packet/af_packet.c:2950 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg net/socket.c:631 [inline] __sys_sendto+0x868/0xa30 net/socket.c:1786 __do_sys_sendto net/socket.c:1798 [inline] __se_sys_sendto+0x107/0x130 net/socket.c:1794 __x64_sys_sendto+0x6e/0x90 net/socket.c:1794 do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 ==================================================================