CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff8801c70d5fe8 CR3: 0000000008e6a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Kernel panic - not syncing: Machine halted.
CPU: 1 PID: 11846 Comm: syz-executor621 Not tainted 4.18.0-rc3+ #132
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <#DF>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 df_debug+0x2d/0x2e arch/x86/kernel/doublefault.c:81
 do_double_fault+0x113/0x200 arch/x86/kernel/traps.c:444
 double_fault+0x23/0x30 arch/x86/entry/entry_64.S:994
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:778 [inline]
RIP: 0010:__lock_acquire+0xb1c/0x5020 kernel/locking/lockdep.c:3311
Code: 88 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 0d 31 00 00 48 83 3d 0a fd 92 07 00 0f 84 d3 0a 00 00 <9c> 58 0f 1f 44 00 00 f6 c4 02 0f 84 63 f6 ff ff e8 ff 33 fd 01 85 
RSP: 0018:ffff8801c70d5ff0 EFLAGS: 00010082
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 1ffffffff11e360c RSI: 0000000000000000 RDI: ffffffff88f1b060
RBP: ffff8801c70d6378 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff88f92620 R14: ffff8801b74ac700 R15: 0000000000000002
WARNING: kernel stack regs at (____ptrval____) in syz-executor621:11846 has bad 'bp' value (____ptrval____)
unwind stack type:0 next_sp:(____ptrval____) mask:0x20 graph_idx:0
(____ptrval____): fffffe0000039d78 (0xfffffe0000039d78)
(____ptrval____): ffffffff812a9105 (show_trace_log_lvl+0x1f6/0x28c)
(____ptrval____): ffffffff815eb35c (__lock_acquire+0xb1c/0x5020)
(____ptrval____): fffffe0000039fd8 (0xfffffe0000039fd8)
(____ptrval____): 0000000000000020 (0x20)
(____ptrval____): 0000000000000005 (0x5)
(____ptrval____): fffffe0000038000 (0xfffffe0000038000)
(____ptrval____): fffffe000003a000 (0xfffffe000003a000)
(____ptrval____): ffff8801c70d5ff0 (0xffff8801c70d5ff0)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000038000 (0xfffffe0000038000)
(____ptrval____): fffffe000003a000 (0xfffffe000003a000)
(____ptrval____): ffff8801c70d5ff0 (0xffff8801c70d5ff0)
(____ptrval____): 0000000000000020 (0x20)
(____ptrval____): ffff8801b74ac700 (0xffff8801b74ac700)
(____ptrval____): 0000010100000000 (0x10100000000)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000039ca8 (0xfffffe0000039ca8)
(____ptrval____): ffffffff815eb35c (__lock_acquire+0xb1c/0x5020)
(____ptrval____): fffffe0000039f58 (0xfffffe0000039f58)
(____ptrval____): c719381af33df900 (0xc719381af33df900)
(____ptrval____): 0000000000000093 (0x93)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffffffff88f1b060 (pv_cpu_ops+0x120/0x120)
(____ptrval____): 00000000ffffffff (0xffffffff)
(____ptrval____): fffffe0000039d88 (0xfffffe0000039d88)
(____ptrval____): ffffffff812a91d3 (show_stack+0x38/0x3a)
(____ptrval____): fffffe0000039e38 (0xfffffe0000039e38)
(____ptrval____): ffffffff878c8805 (dump_stack+0x1c9/0x2b4)
(____ptrval____): fffffbfff11e360c (0xfffffbfff11e360c)
(____ptrval____): dffffc0000000000 (0xdffffc0000000000)
(____ptrval____): 1fffffc0000073b6 (0x1fffffc0000073b6)
(____ptrval____): 0000000041b58ab3 (0x41b58ab3)
(____ptrval____): ffffffff88bd4914 (regoff.34021+0x368374/0x37aeb0)
(____ptrval____): ffffffff878c863c (dump_stack_print_info.cold.2+0x52/0x52)
(____ptrval____): fffffe0000039df8 (0xfffffe0000039df8)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000039e40 (0xfffffe0000039e40)
(____ptrval____): ffff8801c70d6000 (0xffff8801c70d6000)
(____ptrval____): fffffe0000039e18 (0xfffffe0000039e18)
(____ptrval____): c719381af33df900 (0xc719381af33df900)
(____ptrval____): ffff8801c70d6000 (0xffff8801c70d6000)
(____ptrval____): ffffffff89e72d60 (buf.37943+0x40/0x40)
(____ptrval____): c719381af33df900 (0xc719381af33df900)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffffffff87e742e0 (hpet_msi_domain_info+0xe40/0x1a80)
(____ptrval____): 0000000000000001 (0x1)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000039f00 (0xfffffe0000039f00)
(____ptrval____): ffffffff81473ab9 (panic+0x238/0x4e7)
(____ptrval____): 0000000041b58ab3 (0x41b58ab3)
(____ptrval____): ffffffff88bea98c (K512_4+0x130c/0x1207ec)
(____ptrval____): ffffffff81473881 (add_taint.cold.5+0x16/0x16)
(____ptrval____): 0000000000000000 ...
(____ptrval____): 0000000000000008 (0x8)
(____ptrval____): fffffe0000039f10 (0xfffffe0000039f10)
(____ptrval____): fffffe0000039ea8 (0xfffffe0000039ea8)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffff8801b74ac700 (0xffff8801b74ac700)
(____ptrval____): 0000010000000000 (0x10000000000)
(____ptrval____): 0000000000000000 ...
(____ptrval____): c719381af33df900 (0xc719381af33df900)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffffffff8137bfcc (get_cpu_entry_area+0xc/0x30)
(____ptrval____): fffffe0000033000 (0xfffffe0000033000)
(____ptrval____): 0000000000000004 (0x4)
(____ptrval____): 000000000001ede0 (0x1ede0)
(____ptrval____): fffffe0000039e60 (0xfffffe0000039e60)
(____ptrval____): fffffe0000039f58 (0xfffffe0000039f58)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffffffff87e4a580 (__func__.44965+0x40/0x40)
(____ptrval____): ffff8801c70d5ff0 (0xffff8801c70d5ff0)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000039f18 (0xfffffe0000039f18)
(____ptrval____): ffffffff813470df (df_debug+0x2d/0x2e)
(____ptrval____): fffffe0000039f58 (0xfffffe0000039f58)
(____ptrval____): fffffe0000039f48 (0xfffffe0000039f48)
(____ptrval____): ffffffff8129c1f3 (do_double_fault+0x113/0x200)
(____ptrval____): 0000000000000001 (0x1)
(____ptrval____): 0000000000000000 ...
(____ptrval____): fffffe0000039f59 (0xfffffe0000039f59)
(____ptrval____): ffffffff87a00bd3 (double_fault+0x23/0x30)
(____ptrval____): 0000000000000002 (0x2)
(____ptrval____): ffff8801b74ac700 (0xffff8801b74ac700)
(____ptrval____): ffffffff88f92620 (rcu_bh_lock_map+0x40/0x40)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffff8801c70d6378 (0xffff8801c70d6378)
(____ptrval____): 0000000000000000 ...
(____ptrval____): 0000000000000001 (0x1)
(____ptrval____): 0000000000000003 (0x3)
(____ptrval____): 0000000000000000 ...
(____ptrval____): dffffc0000000000 (0xdffffc0000000000)
(____ptrval____): 0000000000000002 (0x2)
(____ptrval____): 1ffffffff11e360c (0x1ffffffff11e360c)
(____ptrval____): 0000000000000000 ...
(____ptrval____): ffffffff88f1b060 (pv_cpu_ops+0x120/0x120)
(____ptrval____): ffffffffffffffff (0xffffffffffffffff)
(____ptrval____): ffffffff815eb35c (__lock_acquire+0xb1c/0x5020)
(____ptrval____): 0000000000000010 (0x10)
(____ptrval____): 0000000000010082 (0x10082)
(____ptrval____): ffff8801c70d5ff0 (0xffff8801c70d5ff0)
(____ptrval____): 0000000000000018 (0x18)
 </#DF>
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..