device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state ================================================================== BUG: KASAN: slab-out-of-bounds in atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] BUG: KASAN: slab-out-of-bounds in atomic_fetch_add_unless include/linux/atomic.h:575 [inline] BUG: KASAN: slab-out-of-bounds in atomic_add_unless include/linux/atomic.h:597 [inline] BUG: KASAN: slab-out-of-bounds in dst_hold_safe include/net/dst.h:308 [inline] BUG: KASAN: slab-out-of-bounds in ip6_hold_safe+0xa7/0x3a0 net/ipv6/route.c:1023 Read of size 4 at addr ffff8880a442e6aa by task ksoftirqd/1/16 CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.0.0-rc7+ #86 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+0x172/0x1f0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 check_memory_region_inline mm/kasan/generic.c:185 [inline] check_memory_region+0x123/0x190 mm/kasan/generic.c:191 kasan_check_read+0x11/0x20 mm/kasan/common.c:100 atomic_read include/asm-generic/atomic-instrumented.h:21 [inline] atomic_fetch_add_unless include/linux/atomic.h:575 [inline] atomic_add_unless include/linux/atomic.h:597 [inline] dst_hold_safe include/net/dst.h:308 [inline] ip6_hold_safe+0xa7/0x3a0 net/ipv6/route.c:1023 rt6_get_pcpu_route net/ipv6/route.c:1243 [inline] ip6_pol_route+0x33d/0xf00 net/ipv6/route.c:1904 ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:1923 fib6_rule_lookup+0x128/0x560 net/ipv6/fib6_rules.c:118 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:1935 ip6_route_input+0x5e6/0x9e0 net/ipv6/route.c:2070 ip6_rcv_finish_core.isra.0+0x174/0x590 net/ipv6/ip6_input.c:63 ip6_rcv_finish+0x17d/0x320 net/ipv6/ip6_input.c:74 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 run_ksoftirqd kernel/softirq.c:654 [inline] run_ksoftirqd+0x8e/0x110 kernel/softirq.c:646 smpboot_thread_fn+0x6ab/0xa10 kernel/smpboot.c:164 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Allocated by task 7611: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_kmalloc mm/kasan/common.c:495 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:468 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:503 slab_post_alloc_hook mm/slab.h:440 [inline] slab_alloc mm/slab.c:3388 [inline] kmem_cache_alloc+0x11a/0x6f0 mm/slab.c:3548 dst_alloc+0x10e/0x1d0 net/core/dst.c:105 ip6_dst_alloc+0x34/0xa0 net/ipv6/route.c:355 ip6_rt_pcpu_alloc net/ipv6/route.c:1223 [inline] rt6_make_pcpu_route net/ipv6/route.c:1253 [inline] ip6_pol_route+0x672/0xf00 net/ipv6/route.c:1907 ip6_pol_route_input+0x65/0x80 net/ipv6/route.c:1923 fib6_rule_lookup+0x128/0x560 net/ipv6/fib6_rules.c:118 ip6_route_input_lookup+0xb7/0xd0 net/ipv6/route.c:1935 ip6_route_input+0x5e6/0x9e0 net/ipv6/route.c:2070 ip6_rcv_finish_core.isra.0+0x174/0x590 net/ipv6/ip6_input.c:63 ip6_rcv_finish+0x17d/0x320 net/ipv6/ip6_input.c:74 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ipv6_rcv+0x10e/0x420 net/ipv6/ip6_input.c:272 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:292 Freed by task 24420: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:457 kasan_slab_free+0xe/0x10 mm/kasan/common.c:465 __cache_free mm/slab.c:3494 [inline] kmem_cache_free+0x86/0x260 mm/slab.c:3754 dst_destroy+0x2a0/0x3c0 net/core/dst.c:141 dst_destroy_rcu+0x16/0x19 net/core/dst.c:154 __rcu_reclaim kernel/rcu/rcu.h:240 [inline] rcu_do_batch kernel/rcu/tree.c:2452 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2773 [inline] rcu_process_callbacks+0x928/0x1390 kernel/rcu/tree.c:2754 __do_softirq+0x266/0x95a kernel/softirq.c:292 The buggy address belongs to the object at ffff8880a442e5c0 which belongs to the cache ip6_dst_cache of size 224 The buggy address is located 10 bytes to the right of 224-byte region [ffff8880a442e5c0, ffff8880a442e6a0) The buggy address belongs to the page: page:ffffea0002910b80 count:1 mapcount:0 mapping:ffff88809aca4e40 index:0xffff8880a442ed40 flags: 0x1fffc0000000200(slab) raw: 01fffc0000000200 ffffea00022b3d08 ffffea00025e0f48 ffff88809aca4e40 raw: ffff8880a442ed40 ffff8880a442e0c0 000000010000000b 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a442e580: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ffff8880a442e600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880a442e680: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880a442e700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a442e780: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ==================================================================