CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff880199be3e58 CR3: 00000001bd226000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: Kernel panic - not syncing: Machine halted. CPU: 1 PID: 20613 Comm: syz-executor5 Not tainted 4.18.0-rc3+ #48 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:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294 Code: 41 57 41 89 cf 41 56 41 55 49 89 fd 41 54 45 89 cc 53 65 4c 8b 34 25 40 ee 01 00 48 83 e4 f0 48 81 ec 60 03 00 00 48 8b 45 10 <89> 94 24 80 00 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 84 24 98 RSP: 0018:ffff880199be3e60 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 1ffff1003337c849 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620 RBP: ffff880199be41f0 R08: 0000000000000000 R09: 0000000000000000 R10: ffff880199c07be0 R11: ffff880198d04d7b R12: 0000000000000000 R13: ffffffff88f92620 R14: ffff880198d04600 R15: 0000000000000002 WARNING: kernel stack regs at 00000000daa4cf69 in syz-executor5:20613 has bad 'bp' value 00000000919211f0 unwind stack type:0 next_sp:000000000d4a03c5 mask:0x20 graph_idx:0 0000000062106644: fffffe0000039d78 (0xfffffe0000039d78) 00000000c5436677: ffffffff812a9105 (show_trace_log_lvl+0x1f6/0x28c) 0000000018d10f8e: ffffffff815ea86e (__lock_acquire+0x2e/0x5020) 00000000a652ed5a: fffffe0000039fd8 (0xfffffe0000039fd8) 00000000dae0caa8: 0000000000000020 (0x20) 00000000720b141b: 0000000000000005 (0x5) 000000001a22e2ce: fffffe0000038000 (0xfffffe0000038000) 000000006ad6ccf3: fffffe000003a000 (0xfffffe000003a000) 00000000b7dfce2d: ffff880199be3e60 (0xffff880199be3e60) 00000000709c3a9d: 0000000000000000 ... 00000000dd63d716: fffffe0000038000 (0xfffffe0000038000) 00000000c1729f36: fffffe000003a000 (0xfffffe000003a000) 000000009361c5ac: ffff880199be3e60 (0xffff880199be3e60) 0000000050967a03: 0000000000000020 (0x20) 00000000cedfa86a: ffff880198d04600 (0xffff880198d04600) 00000000183a1aa0: 0000010100000000 (0x10100000000) 00000000c3f3f5ef: 0000000000000000 ... 00000000e001df36: fffffe0000039ca8 (0xfffffe0000039ca8) 00000000344a061f: ffffffff815ea86e (__lock_acquire+0x2e/0x5020) 000000001a344395: fffffe0000039f58 (0xfffffe0000039f58) 00000000277ef93a: 3f780438cb1b8400 (0x3f780438cb1b8400) 000000008fc7cbef: 0000000000000093 (0x93) 00000000e214dfaa: 0000000000000000 ... 00000000f718ddc6: ffffffff88f1b060 (pv_cpu_ops+0x120/0x120) 00000000148e8dc9: 00000000ffffffff (0xffffffff) 000000006b08c097: fffffe0000039d88 (0xfffffe0000039d88) 00000000ba1e2a14: ffffffff812a91d3 (show_stack+0x38/0x3a) 000000000170ff66: fffffe0000039e38 (0xfffffe0000039e38) 0000000046743675: ffffffff878e92a5 (dump_stack+0x1c9/0x2b4) 000000007d3abd94: fffffbfff11e360c (0xfffffbfff11e360c) 00000000ed77e919: dffffc0000000000 (0xdffffc0000000000) 00000000081986dc: 1fffffc0000073b6 (0x1fffffc0000073b6) 000000009d93d1ff: 0000000041b58ab3 (0x41b58ab3) 00000000c15a1c25: ffffffff88bd6324 (regoff.33338+0x368dc4/0x37b900) 00000000dde89da3: ffffffff878e90dc (dump_stack_print_info.cold.2+0x52/0x52) 00000000508c8ffc: fffffe0000039df8 (0xfffffe0000039df8) 00000000760c2bef: 0000000000000000 ... 0000000081a048bd: fffffe0000039e40 (0xfffffe0000039e40) 00000000f0c159c2: ffff880199be4000 (0xffff880199be4000) 00000000bac07794: fffffe0000039e18 (0xfffffe0000039e18) 00000000ed547673: 3f780438cb1b8400 (0x3f780438cb1b8400) 000000000be0f43c: ffff880199be4000 (0xffff880199be4000) 0000000073afaa6d: ffffffff89e73d60 (buf.37263+0x40/0x40) 0000000001600ad3: 3f780438cb1b8400 (0x3f780438cb1b8400) 0000000084c8d6d0: 0000000000000000 ... 000000007c3de08e: ffffffff87e742a0 (hpet_msi_domain_info+0xe40/0x1a80) 00000000d1d04423: 0000000000000001 (0x1) 00000000a369e61c: 0000000000000000 ... 0000000070593e71: fffffe0000039f00 (0xfffffe0000039f00) 00000000366c7949: ffffffff81473ab9 (panic+0x238/0x4e7) 0000000085be5561: 0000000041b58ab3 (0x41b58ab3) 00000000ba891855: ffffffff88bec38c (K512_4+0x130c/0x120c74) 00000000a159eed7: ffffffff81473881 (add_taint.cold.5+0x16/0x16) 00000000366362e0: 0000000000000000 ... 00000000d39cac26: 0000000000000008 (0x8) 000000004234a1a2: fffffe0000039f10 (0xfffffe0000039f10) 000000009dedc2c7: fffffe0000039ea8 (0xfffffe0000039ea8) 0000000055e86570: 0000000000000000 ... 0000000079d415f0: ffff880198d04600 (0xffff880198d04600) 0000000001c35062: 0000010000000000 (0x10000000000) 00000000b72e1760: 0000000000000000 ... 00000000eeb1d71d: 3f780438cb1b8400 (0x3f780438cb1b8400) 000000008ae74052: 0000000000000000 ... 000000003b0b0f01: ffffffff8137bfcc (get_cpu_entry_area+0xc/0x30) 000000001c847d3b: fffffe0000033000 (0xfffffe0000033000) 00000000153c0fc2: 0000000000000004 (0x4) 00000000435131c7: 000000000001ede0 (0x1ede0) 00000000dcda1df4: fffffe0000039e60 (0xfffffe0000039e60) 0000000051fb5913: fffffe0000039f58 (0xfffffe0000039f58) 00000000d75f403a: 0000000000000000 ... 000000000749f5e3: ffffffff87e4a540 (__func__.44285+0x40/0x40) 00000000244828d2: ffff880199be3e60 (0xffff880199be3e60) 00000000588ddf6d: 0000000000000000 ... 00000000cd083faf: fffffe0000039f18 (0xfffffe0000039f18) 00000000176480b2: ffffffff813470df (df_debug+0x2d/0x2e) 00000000bc54d676: fffffe0000039f58 (0xfffffe0000039f58) 00000000f9e7bcc7: fffffe0000039f48 (0xfffffe0000039f48) 000000002b31b5b2: ffffffff8129c1f3 (do_double_fault+0x113/0x200) 00000000f1abd2db: 0000000000000001 (0x1) 0000000015a1e4d4: 0000000000000000 ... 0000000080a24f45: fffffe0000039f59 (0xfffffe0000039f59) 000000006ee35ead: ffffffff87a00bd3 (double_fault+0x23/0x30) 00000000daa4cf69: 0000000000000002 (0x2) 00000000245671e1: ffff880198d04600 (0xffff880198d04600) 00000000413d25da: ffffffff88f92620 (rcu_bh_lock_map+0x40/0x40) 00000000f85f0ae9: 0000000000000000 ... 000000008c623b95: ffff880199be41f0 (0xffff880199be41f0) 000000005525e95d: 1ffff1003337c849 (0x1ffff1003337c849) 000000002310b11d: ffff880198d04d7b (0xffff880198d04d7b) 000000007c291c33: ffff880199c07be0 (0xffff880199c07be0) 0000000026e2c706: 0000000000000000 ... 000000007128b0a8: 0000000000000002 (0x2) 000000000375150c: 0000000000000000 ... 0000000045e54e35: ffffffff88f92620 (rcu_bh_lock_map+0x40/0x40) 00000000d892d0c2: ffffffffffffffff (0xffffffffffffffff) 00000000b0a34664: ffffffff815ea86e (__lock_acquire+0x2e/0x5020) 00000000e7bcaa2c: 0000000000000010 (0x10) 00000000c1356031: 0000000000010086 (0x10086) 00000000fa166ae1: ffff880199be3e60 (0xffff880199be3e60) 00000000d9682387: 0000000000000018 (0x18) Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..