Node 1 Normal free:309788kB min:53696kB low:67120kB high:80544kB active_anon:912kB inactive_anon:16556kB active_file:836kB inactive_file:3468kB unevictable:0kB writepending:0kB present:4194304kB managed:4128256kB mlocked:0kB kernel_stack:320kB pagetables:388kB bounce:0kB free_pcp:344kB local_pcp:212kB free_cma:0kB ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 17921 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 lowmem_reserve[]: Kernel panic - not syncing: panic_on_warn set ... 0 0 CPU: 1 PID: 17921 Comm: syz-executor.1 Not tainted 4.14.232-syzkaller #0 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 0 panic+0x1f9/0x42d kernel/panic.c:183 Node 0 DMA: __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 3*4kB invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 (UME) RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 RSP: 0018:ffff8881dbde7248 EFLAGS: 00010086 RAX: 0000000000000061 RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878bbbc0 RDI: ffffed103b7bce3f RBP: ffffffff878b6e80 R08: 0000000000000061 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88808d898400 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888059916ef0 R15: 1ffff1103b7bce52 4*8kB debug_object_assert_init lib/debugobjects.c:656 [inline] debug_object_assert_init+0x1d3/0x2d0 lib/debugobjects.c:627 (UM) debug_timer_assert_init kernel/time/timer.c:708 [inline] debug_assert_init kernel/time/timer.c:756 [inline] del_timer+0x5d/0xe0 kernel/time/timer.c:1151 5*16kB (ME) try_to_grab_pending+0x243/0x610 kernel/workqueue.c:1225 __cancel_work_timer+0x90/0x460 kernel/workqueue.c:2923 batadv_nc_mesh_free+0x41/0x120 net/batman-adv/network-coding.c:1880 5*32kB batadv_mesh_free+0x70/0x150 net/batman-adv/main.c:231 (UME) batadv_mesh_init+0x561/0x630 net/batman-adv/main.c:216 batadv_softif_init_late+0xa26/0xc90 net/batman-adv/soft-interface.c:856 register_netdevice+0x291/0xe40 net/core/dev.c:7590 7*64kB (UME) 3*128kB rtnl_newlink+0x14ff/0x1860 net/core/rtnetlink.c:2742 (UME) 5*256kB (UE) 3*512kB (UME) 3*1024kB (UME) rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4316 2*2048kB netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 (UE) 0*4096kB = 11100kB netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 Node 0 DMA32: 886*4kB netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 (ME) 484*8kB (ME) sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 SYSC_sendto net/socket.c:1763 [inline] SyS_sendto+0x1c7/0x2c0 net/socket.c:1731 158*16kB (ME) 942*32kB (UME) 54*64kB (UM) 7*128kB do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb (U) 0*256kB RIP: 0033:0x41958c RSP: 002b:00007ffc5564d420 EFLAGS: 00000293 0*512kB ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00000000014a4320 RCX: 000000000041958c RDX: 000000000000003c RSI: 00000000014a4370 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffc5564d474 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00000000014a4370 R14: 0000000000000003 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..