IPVS: set_ctl: invalid protocol: 135 172.20.20.170:20000 ================================================================== BUG: KASAN: slab-out-of-bounds in atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] BUG: KASAN: slab-out-of-bounds in refcount_read include/linux/refcount.h:42 [inline] BUG: KASAN: slab-out-of-bounds in check_net include/net/net_namespace.h:236 [inline] BUG: KASAN: slab-out-of-bounds in rds_destroy_pending net/rds/rds.h:897 [inline] BUG: KASAN: slab-out-of-bounds in rds_cong_queue_updates+0x255/0x590 net/rds/cong.c:226 Read of size 4 at addr ffff8801d8f24244 by task kworker/u4:5/6652 CPU: 0 PID: 6652 Comm: kworker/u4:5 Not tainted 4.17.0+ #84 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_send_worker Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267 kasan_check_read+0x11/0x20 mm/kasan/kasan.c:272 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] refcount_read include/linux/refcount.h:42 [inline] check_net include/net/net_namespace.h:236 [inline] rds_destroy_pending net/rds/rds.h:897 [inline] rds_cong_queue_updates+0x255/0x590 net/rds/cong.c:226 rds_recv_rcvbuf_delta.part.3+0x2b9/0x350 net/rds/recv.c:118 rds_recv_rcvbuf_delta net/rds/recv.c:377 [inline] rds_recv_incoming+0x83f/0x1300 net/rds/recv.c:377 rds_loop_xmit+0x16a/0x340 net/rds/loop.c:82 rds_send_xmit+0x131b/0x2990 net/rds/send.c:355 rds_send_worker+0x142/0x2e0 net/rds/threads.c:199 process_one_work+0xc64/0x1b70 kernel/workqueue.c:2153 worker_thread+0x181/0x13a0 kernel/workqueue.c:2296 kthread+0x345/0x410 kernel/kthread.c:240 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 Allocated by task 8901: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc_node mm/slab.c:3682 [inline] __kmalloc_node_track_caller+0x47/0x70 mm/slab.c:3696 __kmalloc_reserve.isra.40+0x3a/0xe0 net/core/skbuff.c:137 __alloc_skb+0x14d/0x780 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:987 [inline] nlmsg_new include/net/netlink.h:511 [inline] rtmsg_ifinfo_build_skb+0x73/0x190 net/core/rtnetlink.c:3261 rtmsg_ifinfo_event.part.30+0x45/0xe0 net/core/rtnetlink.c:3297 rtmsg_ifinfo_event net/core/rtnetlink.c:3308 [inline] rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3306 __dev_notify_flags+0x2d5/0x460 net/core/dev.c:7025 dev_change_flags+0xfd/0x150 net/core/dev.c:7065 devinet_ioctl+0xe4a/0x1d90 net/ipv4/devinet.c:1092 inet_ioctl+0x18b/0x360 net/ipv4/af_inet.c:954 sock_do_ioctl+0xe4/0x3e0 net/socket.c:973 sock_ioctl+0x30d/0x680 net/socket.c:1097 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1cf/0x16f0 fs/ioctl.c:684 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 8901: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 skb_free_head+0x99/0xc0 net/core/skbuff.c:550 pskb_expand_head+0x3b1/0x10c0 net/core/skbuff.c:1494 netlink_trim+0x2db/0x370 net/netlink/af_netlink.c:1292 netlink_broadcast_filtered+0xef/0x1580 net/netlink/af_netlink.c:1489 netlink_broadcast net/netlink/af_netlink.c:1534 [inline] nlmsg_multicast include/net/netlink.h:591 [inline] nlmsg_notify+0xa0/0x1a0 net/netlink/af_netlink.c:2491 rtnl_notify net/core/rtnetlink.c:732 [inline] rtmsg_ifinfo_send net/core/rtnetlink.c:3285 [inline] rtmsg_ifinfo_event.part.30+0xb2/0xe0 net/core/rtnetlink.c:3300 rtmsg_ifinfo_event net/core/rtnetlink.c:3308 [inline] rtmsg_ifinfo+0x8c/0xa0 net/core/rtnetlink.c:3306 __dev_notify_flags+0x2d5/0x460 net/core/dev.c:7025 dev_change_flags+0xfd/0x150 net/core/dev.c:7065 devinet_ioctl+0xe4a/0x1d90 net/ipv4/devinet.c:1092 inet_ioctl+0x18b/0x360 net/ipv4/af_inet.c:954 sock_do_ioctl+0xe4/0x3e0 net/socket.c:973 sock_ioctl+0x30d/0x680 net/socket.c:1097 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1cf/0x16f0 fs/ioctl.c:684 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801d8f24300 which belongs to the cache kmalloc-4096 of size 4096 The buggy address is located 188 bytes to the left of 4096-byte region [ffff8801d8f24300, ffff8801d8f25300) The buggy address belongs to the page: page:ffffea000763c900 count:1 mapcount:0 mapping:ffff8801da800dc0 index:0x0 compound_mapcount: 0 flags: 0x2fffc0000008100(slab|head) raw: 02fffc0000008100 ffffea0007280788 ffffea00064baf88 ffff8801da800dc0 raw: 0000000000000000 ffff8801d8f24300 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d8f24100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801d8f24180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801d8f24200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801d8f24280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801d8f24300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================