device veth0_vlan entered promiscuous mode device veth1_vlan entered promiscuous mode ================================================================== BUG: KASAN: slab-out-of-bounds in __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline] BUG: KASAN: slab-out-of-bounds in mc_hash drivers/net/macvlan.c:251 [inline] BUG: KASAN: slab-out-of-bounds in macvlan_broadcast+0x547/0x620 drivers/net/macvlan.c:277 Read of size 4 at addr ffff888097dfd001 by task syz-executor791/9764 CPU: 0 PID: 9764 Comm: syz-executor791 Not tainted 5.5.0-rc5-syzkaller #0 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+0x197/0x210 lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd4/0x30b mm/kasan/report.c:374 __kasan_report.cold+0x1b/0x41 mm/kasan/report.c:506 kasan_report+0x12/0x20 mm/kasan/common.c:639 __asan_report_load_n_noabort+0xf/0x20 mm/kasan/generic_report.c:145 __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline] mc_hash drivers/net/macvlan.c:251 [inline] macvlan_broadcast+0x547/0x620 drivers/net/macvlan.c:277 macvlan_queue_xmit drivers/net/macvlan.c:520 [inline] macvlan_start_xmit+0x402/0x77f drivers/net/macvlan.c:559 __netdev_start_xmit include/linux/netdevice.h:4447 [inline] netdev_start_xmit include/linux/netdevice.h:4461 [inline] dev_direct_xmit+0x419/0x630 net/core/dev.c:4079 packet_direct_xmit+0x1a9/0x250 net/packet/af_packet.c:240 packet_snd net/packet/af_packet.c:2966 [inline] packet_sendmsg+0x260d/0x6220 net/packet/af_packet.c:2991 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 __sys_sendto+0x262/0x380 net/socket.c:1985 __do_sys_sendto net/socket.c:1997 [inline] __se_sys_sendto net/socket.c:1993 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1993 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x442599 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 5b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff542591b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442599 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000003 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000403b10 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 9764: save_stack+0x23/0x90 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] __kasan_kmalloc mm/kasan/common.c:513 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:486 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:527 kmem_cache_alloc_trace+0x158/0x790 mm/slab.c:3551 kmalloc include/linux/slab.h:556 [inline] kzalloc include/linux/slab.h:670 [inline] kobject_uevent_env+0x387/0x10a6 lib/kobject_uevent.c:523 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:641 rx_queue_add_kobject net/core/net-sysfs.c:939 [inline] net_rx_queue_update_kobjects+0xe5/0x440 net/core/net-sysfs.c:961 register_queue_kobjects net/core/net-sysfs.c:1536 [inline] netdev_register_kobject+0x278/0x3b0 net/core/net-sysfs.c:1759 register_netdevice+0x4f4/0x1020 net/core/dev.c:9316 bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] bond_newlink+0x4b/0x90 drivers/net/bonding/bond_netlink.c:448 __rtnl_newlink+0x109e/0x1790 net/core/rtnetlink.c:3305 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3363 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5424 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 __sys_sendto+0x262/0x380 net/socket.c:1985 __do_sys_sendto net/socket.c:1997 [inline] __se_sys_sendto net/socket.c:1993 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1993 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 9764: save_stack+0x23/0x90 mm/kasan/common.c:72 set_track mm/kasan/common.c:80 [inline] kasan_set_free_info mm/kasan/common.c:335 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:474 kasan_slab_free+0xe/0x10 mm/kasan/common.c:483 __cache_free mm/slab.c:3426 [inline] kfree+0x10a/0x2c0 mm/slab.c:3757 kobject_uevent_env+0x1045/0x10a6 lib/kobject_uevent.c:625 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:641 rx_queue_add_kobject net/core/net-sysfs.c:939 [inline] net_rx_queue_update_kobjects+0xe5/0x440 net/core/net-sysfs.c:961 register_queue_kobjects net/core/net-sysfs.c:1536 [inline] netdev_register_kobject+0x278/0x3b0 net/core/net-sysfs.c:1759 register_netdevice+0x4f4/0x1020 net/core/dev.c:9316 bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] bond_newlink+0x4b/0x90 drivers/net/bonding/bond_netlink.c:448 __rtnl_newlink+0x109e/0x1790 net/core/rtnetlink.c:3305 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3363 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5424 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 __sys_sendto+0x262/0x380 net/socket.c:1985 __do_sys_sendto net/socket.c:1997 [inline] __se_sys_sendto net/socket.c:1993 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1993 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff888097dfc000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 1 bytes to the right of 4096-byte region [ffff888097dfc000, ffff888097dfd000) The buggy address belongs to the page: page:ffffea00025f7f00 refcount:1 mapcount:0 mapping:ffff8880aa402000 index:0x0 compound_mapcount: 0 raw: 00fffe0000010200 ffffea00025ea888 ffffea00026e9188 ffff8880aa402000 raw: 0000000000000000 ffff888097dfc000 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888097dfcf00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888097dfcf80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888097dfd000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888097dfd080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888097dfd100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 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