vcan0: j1939_xtp_rx_abort_one: 0x0000000080cc5f74: 0x00000: (3) A timeout occurred and this is the connection abort to close the session.
vcan0: j1939_xtp_rx_abort_one: 0x000000004ffccaac: 0x00000: (3) A timeout occurred and this is the connection abort to close the session.
==================================================================
BUG: KASAN: slab-out-of-bounds in j1939_session_tx_dat net/can/j1939/transport.c:790 [inline]
BUG: KASAN: slab-out-of-bounds in j1939_xtp_txnext_transmiter net/can/j1939/transport.c:847 [inline]
BUG: KASAN: slab-out-of-bounds in j1939_tp_txtimer+0x1e64/0x3780 net/can/j1939/transport.c:1095
Read of size 7 at addr ffff88807e0a4afe by task ksoftirqd/1/16

CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.6.0-rc6-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+0x1e9/0x30e lib/dump_stack.c:118
 print_address_description+0x74/0x5c0 mm/kasan/report.c:374
 __kasan_report+0x14b/0x1c0 mm/kasan/report.c:506
 kasan_report+0x25/0x50 mm/kasan/common.c:641
 check_memory_region_inline mm/kasan/generic.c:182 [inline]
 check_memory_region+0x2a5/0x2e0 mm/kasan/generic.c:192
 memcpy+0x25/0x50 mm/kasan/common.c:127
 j1939_session_tx_dat net/can/j1939/transport.c:790 [inline]
 j1939_xtp_txnext_transmiter net/can/j1939/transport.c:847 [inline]
 j1939_tp_txtimer+0x1e64/0x3780 net/can/j1939/transport.c:1095
 __run_hrtimer kernel/time/hrtimer.c:1517 [inline]
 __hrtimer_run_queues+0x3cf/0x7d0 kernel/time/hrtimer.c:1579
 hrtimer_run_softirq+0x15a/0x1b0 kernel/time/hrtimer.c:1596
 __do_softirq+0x268/0x7c5 kernel/softirq.c:292
 run_ksoftirqd+0x60/0xf0 kernel/softirq.c:603
 smpboot_thread_fn+0x572/0x970 kernel/smpboot.c:165
 kthread+0x317/0x340 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352

Allocated by task 8657:
 save_stack mm/kasan/common.c:72 [inline]
 set_track mm/kasan/common.c:80 [inline]
 __kasan_kmalloc+0x118/0x1c0 mm/kasan/common.c:515
 __do_kmalloc mm/slab.c:3656 [inline]
 __kmalloc+0x24b/0x330 mm/slab.c:3665
 kmalloc include/linux/slab.h:560 [inline]
 kzalloc+0x1d/0x40 include/linux/slab.h:669
 fib6_info_alloc+0x26/0xd0 net/ipv6/ip6_fib.c:154
 ip6_route_info_create+0x40b/0x19a0 net/ipv6/route.c:3615
 addrconf_f6i_alloc+0x3dd/0x5d0 net/ipv6/route.c:4439
 ipv6_add_addr+0x3ec/0x16e0 net/ipv6/addrconf.c:1087
 addrconf_add_linklocal+0x253/0x960 net/ipv6/addrconf.c:3192
 addrconf_addr_gen+0x32f/0xbf0 net/ipv6/addrconf.c:3319
 addrconf_notify+0xb92/0x3ad0 net/ipv6/addrconf.c:3601
 notifier_call_chain kernel/notifier.c:83 [inline]
 __raw_notifier_call_chain kernel/notifier.c:361 [inline]
 raw_notifier_call_chain+0xd4/0x170 kernel/notifier.c:368
 __dev_notify_flags+0x253/0x4d0 net/core/dev.c:1948
 dev_change_flags+0xe3/0x190 net/core/dev.c:8219
 do_setlink+0xb17/0x3880 net/core/rtnetlink.c:2596
 __rtnl_newlink net/core/rtnetlink.c:3252 [inline]
 rtnl_newlink+0x1509/0x1c00 net/core/rtnetlink.c:3377
 rtnetlink_rcv_msg+0x889/0xd40 net/core/rtnetlink.c:5436
 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2478
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 __sys_sendto+0x3f3/0x590 net/socket.c:1998
 __do_sys_sendto net/socket.c:2010 [inline]
 __se_sys_sendto net/socket.c:2006 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2006
 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff88807e0a4a00
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 254 bytes inside of
 256-byte region [ffff88807e0a4a00, ffff88807e0a4b00)
The buggy address belongs to the page:
page:ffffea0001f82900 refcount:1 mapcount:0 mapping:ffff8880aa4008c0 index:0x0
flags: 0xfffe0000000200(slab)
raw: 00fffe0000000200 ffffea0002545d48 ffffea0001f829c8 ffff8880aa4008c0
raw: 0000000000000000 ffff88807e0a4000 0000000100000008 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88807e0a4a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88807e0a4a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88807e0a4b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff88807e0a4b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807e0a4c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================