pkg/report: improve double fault parsing

Ignore double faults as start of a second report.
Double fault can happen during handling of paging faults
if memory is badly corrupted. Also it usually happens
synchronously, which means that maybe the report is not corrupted.
But of course it can come from another CPU as well.

Add more interesting test cases.

7 files changed, 781 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/report/323 b/pkg/report/testdata/linux/report/323
new file mode 100644
index 000000000..672c5bb3c
--- /dev/null
+++ b/pkg/report/testdata/linux/report/323
@@ -0,0 +1,123 @@
+TITLE: general protection fault in vmalloc_fault
+CORRUPTED: Y
+
+[  888.868901] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
+[  888.877662] kernel msg: ebtables bug: please report to author: Valid hook without chain
+[  888.886940] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
+[  891.921322] general protection fault: 0000 [#1] PREEMPT SMP
+[  891.927060] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0+ #138
+[  891.931323] PANIC: double fault, error_code: 0x0
+[  891.933366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  891.938120] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #138
+[  891.947466] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  891.953763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  891.958418] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 2b 86 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 0e 86 1c 00
+[  891.967764] RIP: 0010:native_safe_halt+0x6/0x10
+[  891.986649] RSP: 0018:ffff8882175aace0 EFLAGS: 00010006
+[  891.991310] Code: 65 48 8b 04 25 80 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 75 ac e9 57 ff ff ff 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90
+[  891.996655] RAX: ffffffff83e2f780 RBX: ffffc9000143b8b8 RCX: ffffffff830009b7
+[  892.015548] RSP: 0018:ffffc90000cc3e70 EFLAGS: 00010286
+[  892.022806] RDX: 0000000000010100 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  892.028153] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
+[  892.035402] RBP: ffff8882175aad10 R08: 0000000000000000 R09: 0000000000000000
+[  892.042657] RDX: 0000000000000000 RSI: ffffffff81c1f545 RDI: ffffffff83a6bc1d
+[  892.049911] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000050
+[  892.057190] RBP: ffffc90000cc3e70 R08: 000000ef5d9d471e R09: 0000000000000000
+[  892.064443] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  892.071692] R10: 0000000000004400 R11: 0000000000004400 R12: ffffffff840840e0
+[  892.078944] FS:  0000000000000000(0000) GS:ffff888218200000(0000) knlGS:0000000000000000
+[  892.086192] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
+[  892.094398] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  892.101650] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  892.107523] CR2: ffffc9000143b8b8 CR3: 0000000213fae000 CR4: 00000000001406f0
+[  892.115727] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  892.123005] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  892.128885] CR2: ffffc90000cc3e68 CR3: 0000000213fae000 CR4: 00000000001406e0
+[  892.136131] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[  892.143378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  892.150623] Call Trace:
+[  892.157882] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[  892.160458] Modules linked in:
+[  892.167720] Call Trace:
+[  892.170893] ---[ end trace 8832e7c313bbcd42 ]---
+[  892.173461] general protection fault: 0000 [#2] PREEMPT SMP
+[  892.178188] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  892.183867] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D           4.20.0+ #138
+[  892.188510] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 2b 86 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 0e 86 1c 00
+[  892.196218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  892.215128] RSP: 0018:ffff8882175aace0 EFLAGS: 00010006
+[  892.224461] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  892.229791] RAX: ffffffff83e2f780 RBX: ffffc9000143b8b8 RCX: ffffffff830009b7
+[  892.234436] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 2b 86 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 0e 86 1c 00
+[  892.241682] RDX: 0000000000010100 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  892.260563] RSP: 0018:fffffe0000031c30 EFLAGS: 00010006
+[  892.267810] RBP: ffff8882175aad10 R08: 0000000000000000 R09: 0000000000000000
+[  892.273172] RAX: ffff888216ebe000 RBX: ffffc90000cc3e78 RCX: ffffffff830009b7
+[  892.280418] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000050
+[  892.287668] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  892.294916] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  892.302163] RBP: fffffe0000031c60 R08: 0000000000000000 R09: 0000000000000000
+[  892.309409] FS:  0000000000000000(0000) GS:ffff888218200000(0000) knlGS:0000000000000000
+[  892.316655] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[  892.324870] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  892.332116] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  892.337985] CR2: ffffc9000143b8b8 CR3: 0000000213fae000 CR4: 00000000001406f0
+[  892.345234] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  892.352478] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  892.360683] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  892.367930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[  892.373789] CR2: ffffc90000cc3e78 CR3: 0000000213fae000 CR4: 00000000001406e0
+[  892.381034] Kernel panic - not syncing: Fatal exception in interrupt
+[  892.388282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  892.402000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[  892.409248] Call Trace:
+[  892.411830]  <#DF>
+[  892.413977]  __do_page_fault+0x23f/0x630
+[  892.418022]  do_page_fault+0x4e/0x16d
+[  892.421806]  page_fault+0x1e/0x30
+[  892.425253] RIP: 0010:update_stack_state+0xe7/0x160
+[  892.430265] Code: f6 0f 84 84 00 00 00 4d 89 77 50 49 c7 47 38 00 00 00 00 41 f6 86 88 00 00 00 03 75 64 49 83 ee 80 65 48 8b 04 25 80 5c 01 00 <49> 8b 06 49 89 47 48 48 85 d2 b8 01 00 00 00 75 15 49 89 5f 40 48
+[  892.449151] RSP: 0018:fffffe0000031dc0 EFLAGS: 00010046
+[  892.454511] RAX: ffff888216ebe000 RBX: ffffc90000cc3e70 RCX: ffffc90000cc4000
+[  892.461760] RDX: 0000000000000000 RSI: ffffc90000cc3e00 RDI: fffffe0000031e68
+[  892.469030] RBP: fffffe0000031df8 R08: 0000000000000400 R09: 000000000000000b
+[  892.476279] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90000cc3e80
+[  892.483529] R13: ffffc90000cc3e70 R14: ffffc90000cc3e78 R15: fffffe0000031e68
+[  892.490791]  __unwind_start+0x4d/0xc0
+[  892.494584]  show_trace_log_lvl+0x98/0x296
+[  892.498804]  show_regs.cold.16+0x1a/0x1f
+[  892.502853]  df_debug+0x1c/0x2a
+[  892.506112]  do_double_fault+0xb5/0x120
+[  892.510069]  double_fault+0x1e/0x30
+[  892.513677] RIP: 0010:native_safe_halt+0x6/0x10
+[  892.518330] Code: 65 48 8b 04 25 80 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 75 ac e9 57 ff ff ff 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90
+[  892.537213] RSP: 0018:ffffc90000cc3e70 EFLAGS: 00010286
+[  892.542557] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001
+[  892.549834] RDX: 0000000000000000 RSI: ffffffff81c1f545 RDI: ffffffff83a6bc1d
+[  892.557115] RBP: ffffc90000cc3e70 R08: 000000ef5d9d471e R09: 0000000000000000
+[  892.564368] R10: 0000000000004400 R11: 0000000000004400 R12: ffffffff840840e0
+[  892.571620] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
+[  892.578879]  ? check_preemption_disabled+0x35/0x120
+[  892.583887] general protection fault: 0000 [#3] PREEMPT SMP
+[  892.590066] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D           4.20.0+ #138
+[  892.597766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  892.607108] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  892.611759] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 2b 86 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 0e 86 1c 00
+[  892.630641] RSP: 0018:fffffe0000031800 EFLAGS: 00010006
+[  892.636018] RAX: ffff888216ebe000 RBX: ffffc90000cc3e78 RCX: ffffffff830009b7
+[  892.643291] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  892.650559] RBP: fffffe0000031830 R08: 0000000000000000 R09: 0000000000000000
+[  892.657814] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[  892.665076] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  892.672330] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  892.680537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  892.686400] CR2: ffffc90000cc3e78 CR3: 0000000213fae000 CR4: 00000000001406e0
+[  892.693661] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  892.700930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[  892.708182] Call Trace:
+[  892.710760]  <#DF>
+[  892.712902]  __do_page_fault+0x23f/0x630
+[  892.716946]  ? _raw_spin_unlock_irqrestore+0x33/0x50
+[  892.722032]  ? up+0x2d/0x50
+[  892.724949]  do_page_fault+0x4e/0x16d
+[  892.728746]  page_fault+0x1e/0x30
diff --git a/pkg/report/testdata/linux/report/324 b/pkg/report/testdata/linux/report/324
new file mode 100644
index 000000000..ac9ef867d
--- /dev/null
+++ b/pkg/report/testdata/linux/report/324
@@ -0,0 +1,167 @@
+TITLE: BUG: unable to handle kernel paging request in lookup_object
+CORRUPTED: Y
+
+[  946.951230] BUG: unable to handle kernel paging request at 000000fe840fc4b9
+[  946.958357] #PF error: [normal kernel read fault]
+[  946.963182] PGD 216999067 P4D 216999067 PUD 0 
+[  946.967748] Oops: 0000 [#1] PREEMPT SMP
+[  946.967891] PANIC: double fault, error_code: 0x0
+[  946.971713] CPU: 1 PID: 5429 Comm: syz-fuzzer Not tainted 4.20.0+ #139
+[  946.976452] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0+ #139
+[  946.983088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  946.989383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  946.998723] RIP: 0010:lookup_object+0x11/0x80
+[  947.008055] RIP: 0010:__udp6_lib_lookup+0x10e/0x3e0
+[  947.012528] Code: fd ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 f3 eb c2 0f 1f 80 00 00 00 00 48 8b 05 d9 b0 17 03 55 48 89 e5 53 48 85 c0 74 12 <48> 8b 50 30 48 39 fa 76 11 48 8b 40 10 48 85 c0 75 ee 31 db 48 89
+[  947.017522] Code: ff ff 75 20 45 89 e0 4c 89 f1 44 89 fa 44 8b 4d c4 48 8b 75 c8 23 58 10 48 8b 7d d0 48 c1 e3 04 48 03 58 08 8b 45 10 53 41 55 <50> e8 ec e8 ff ff 48 83 c4 20 48 85 c0 48 89 c3 0f 84 1e 01 00 00
+[  947.036399] RSP: 0018:ffffc90001c53c50 EFLAGS: 00010002
+[  947.055277] RSP: 0018:ffff888216f8c000 EFLAGS: 00010282
+[  947.060618] RAX: 000000fe840fc489 RBX: ffff88821cb1bc08 RCX: 3f512e31455ff834
+[  947.065957] RAX: 0000000000000000 RBX: ffffc90002e83540 RCX: ffff8881e73d0050
+[  947.073201] RDX: b60f4100004dd3e8 RSI: 0000000000000001 RDI: ffffea000531bc08
+[  947.080446] RDX: 0000000000000000 RSI: ffff8881e73d0060 RDI: ffff8881da440280
+[  947.087694] RBP: ffffc90001c53c58 R08: ffffffff83e9f520 R09: 0000000000000000
+[  947.094943] RBP: ffff888216f8c068 R08: 0000000000008919 R09: 0000000000000004
+[  947.102190] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88821cb1bff9
+[  947.109434] R10: 0000000000000000 R11: ffff8881e73d0048 R12: 0000000000008919
+[  947.116679] R13: ffff888217cc7500 R14: ffff88821fe00000 R15: 0000000000000000
+[  947.123929] R13: 0000000000000000 R14: ffff8881e73d0050 R15: 0000000000000000
+[  947.131178] FS:  000000c420088768(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  947.138422] FS:  0000000000000000(0000) GS:ffff888218200000(0000) knlGS:0000000000000000
+[  947.146626] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  947.154820] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  947.160681] CR2: 000000fe840fc4b9 CR3: 000000020d5df000 CR4: 00000000001406e0
+[  947.166540] CR2: ffff888216f8bff8 CR3: 000000020d5df000 CR4: 00000000001406f0
+[  947.173789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  947.181032] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  947.188281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  947.195529] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  947.202775] Call Trace:
+[  947.210019] Call Trace:
+[  947.212587]  scan_block+0x7f/0x100
+[  947.215140] Kernel panic - not syncing: Machine halted.
+[  947.218655]  scan_gray_list+0xee/0x160
+[  947.227856]  kmemleak_scan+0x2d1/0x560
+[  947.231725]  kmemleak_write+0x317/0x39a
+[  947.235682]  ? rcu_is_watching+0x11/0x40
+[  947.239724]  ? refcount_inc_not_zero_checked+0x48/0xb0
+[  947.244983]  full_proxy_write+0x6e/0xa0
+[  947.248936]  ? full_proxy_poll+0x90/0x90
+[  947.252980]  __vfs_write+0x54/0x2a0
+[  947.256586]  ? check_preemption_disabled+0x35/0x120
+[  947.261581]  ? __this_cpu_preempt_check+0x1c/0x20
+[  947.266402]  vfs_write+0xd9/0x210
+[  947.269835]  ksys_write+0x62/0xf0
+[  947.273266]  __x64_sys_write+0x1e/0x30
+[  947.277137]  do_syscall_64+0x7c/0x170
+[  947.280923]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
+[  947.286093] RIP: 0033:0x47fc44
+[  947.289270] Code: ff ff cc cc cc cc e8 9b 41 fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 45 31 d2 45 31 c0 45 31 c9 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
+[  947.308155] RSP: 002b:000000c4202c3498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
+[  947.315845] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fc44
+[  947.323098] RDX: 0000000000000004 RSI: 000000c4202c3650 RDI: 0000000000000024
+[  947.330351] RBP: 000000c4202c34e8 R08: 0000000000000000 R09: 0000000000000000
+[  947.337604] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
+[  947.344862] R13: 00000000000000f3 R14: 0000000000000033 R15: 0000000000000002
+[  947.352114] Modules linked in:
+[  947.355291] CR2: 000000fe840fc4b9
+[  947.358723] ---[ end trace d847ed588e530688 ]---
+[  947.363464] RIP: 0010:lookup_object+0x11/0x80
+[  947.367939] Code: fd ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 f3 eb c2 0f 1f 80 00 00 00 00 48 8b 05 d9 b0 17 03 55 48 89 e5 53 48 85 c0 74 12 <48> 8b 50 30 48 39 fa 76 11 48 8b 40 10 48 85 c0 75 ee 31 db 48 89
+[  947.386824] RSP: 0018:ffffc90001c53c50 EFLAGS: 00010002
+[  947.392169] RAX: 000000fe840fc489 RBX: ffff88821cb1bc08 RCX: 3f512e31455ff834
+[  947.399421] RDX: b60f4100004dd3e8 RSI: 0000000000000001 RDI: ffffea000531bc08
+[  947.406673] RBP: ffffc90001c53c58 R08: ffffffff83e9f520 R09: 0000000000000000
+[  947.413925] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88821cb1bff9
+[  947.421178] R13: ffff888217cc7500 R14: ffff88821fe00000 R15: 0000000000000000
+[  947.428430] FS:  000000c420088768(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  947.436643] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  947.442504] CR2: 000000fe840fc4b9 CR3: 000000020d5df000 CR4: 00000000001406e0
+[  947.449769] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  947.457023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  947.698208] PANIC: double fault, error_code: 0x0
+[  947.702971] CPU: 1 PID: 5429 Comm: syz-fuzzer Tainted: G      D           4.20.0+ #139
+[  947.710994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  947.720467] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50
+[  947.725810] Code: 00 00 48 c7 c7 80 a4 e8 83 e8 48 96 cb 01 e8 03 08 ff ff 5b 41 5c 41 5d 41 5e 5d c3 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 <48> 8b 75 08 65 48 8b 04 25 80 5c 01 00 65 8b 15 98 3d d3 7e 81 e2
+[  947.744691] RSP: 0018:ffffc90001c53918 EFLAGS: 00010093
+[  947.750034] RAX: ffff888216401000 RBX: 0000000000000000 RCX: 0000000000000001
+[  947.757285] RDX: 0000000000000000 RSI: ffffffff811f8e19 RDI: ffffffff83a4aaab
+[  947.764533] RBP: ffffc90001c53918 R08: 0000000000000400 R09: 0000000000000041
+[  947.771782] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
+[  947.779031] R13: ffffc90001c53b00 R14: ffffffff83a4aaab R15: ffffc90001c53a10
+[  947.786286] FS:  000000c420088768(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  947.794489] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  947.800357] CR2: ffffc90001c53908 CR3: 000000020d5df000 CR4: 00000000001406e0
+[  947.807611] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  947.814871] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  947.822119] Call Trace:
+[  947.824701] general protection fault: 0000 [#2] PREEMPT SMP
+[  947.830491] CPU: 1 PID: 5429 Comm: syz-fuzzer Tainted: G      D           4.20.0+ #139
+[  947.838532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  947.847875] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  947.852530] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 fb 99 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 de 99 1c 00
+[  947.871415] RSP: 0018:fffffe0000031c30 EFLAGS: 00010002
+[  947.876757] RAX: ffff888216401000 RBX: ffffc90001c53920 RCX: ffffffff830009b7
+[  947.884038] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  947.891284] RBP: fffffe0000031c60 R08: 0000000000000000 R09: 0000000000000000
+[  947.898535] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000070
+[  947.905790] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  947.913044] FS:  000000c420088768(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  947.921251] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  947.927115] CR2: ffffc90001c53920 CR3: 000000020d5df000 CR4: 00000000001406e0
+[  947.934367] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  947.941617] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  947.948872] Call Trace:
+[  947.951434]  <#DF>
+[  947.953572]  __do_page_fault+0x23f/0x630
+[  947.957613]  ? _raw_spin_unlock_irqrestore+0x33/0x50
+[  947.962702]  ? up+0x2d/0x50
+[  947.965619]  do_page_fault+0x4e/0x16d
+[  947.969407]  page_fault+0x1e/0x30
+[  947.972842] RIP: 0010:update_stack_state+0xe7/0x160
+[  947.977837] Code: f6 0f 84 84 00 00 00 4d 89 77 50 49 c7 47 38 00 00 00 00 41 f6 86 88 00 00 00 03 75 64 49 83 ee 80 65 48 8b 04 25 80 5c 01 00 <49> 8b 06 49 89 47 48 48 85 d2 b8 01 00 00 00 75 15 49 89 5f 40 48
+[  947.996718] RSP: 0018:fffffe0000031dc0 EFLAGS: 00010046
+[  948.002059] RAX: ffff888216401000 RBX: ffffc90001c53918 RCX: ffffc90001c54000
+[  948.009312] RDX: 0000000000000000 RSI: ffffc90001c53900 RDI: fffffe0000031e68
+[  948.016564] RBP: fffffe0000031df8 R08: 0000000000000400 R09: 000000000000000b
+[  948.023812] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001c53928
+[  948.031061] R13: ffffc90001c53918 R14: ffffc90001c53920 R15: fffffe0000031e68
+[  948.038324]  __unwind_start+0x4d/0xc0
+[  948.042103]  show_trace_log_lvl+0x98/0x296
+[  948.046319]  show_regs.cold.16+0x1a/0x1f
+[  948.050363]  df_debug+0x1c/0x2a
+[  948.053630]  do_double_fault+0xb5/0x120
+[  948.057588]  double_fault+0x1e/0x30
+[  948.061196] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50
+[  948.066544] Code: 00 00 48 c7 c7 80 a4 e8 83 e8 48 96 cb 01 e8 03 08 ff ff 5b 41 5c 41 5d 41 5e 5d c3 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 <48> 8b 75 08 65 48 8b 04 25 80 5c 01 00 65 8b 15 98 3d d3 7e 81 e2
+[  948.085424] RSP: 0018:ffffc90001c53918 EFLAGS: 00010093
+[  948.090765] RAX: ffff888216401000 RBX: 0000000000000000 RCX: 0000000000000001
+[  948.098016] RDX: 0000000000000000 RSI: ffffffff811f8e19 RDI: ffffffff83a4aaab
+[  948.105268] RBP: ffffc90001c53918 R08: 0000000000000400 R09: 0000000000000041
+[  948.112524] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
+[  948.119773] R13: ffffc90001c53b00 R14: ffffffff83a4aaab R15: ffffc90001c53a10
+[  948.127035]  ? panic_smp_self_stop+0x9/0x60
+[  948.131347] general protection fault: 0000 [#3] PREEMPT SMP
+[  948.137041] CPU: 1 PID: 5429 Comm: syz-fuzzer Tainted: G      D           4.20.0+ #139
+[  948.145070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  948.154412] RIP: 0010:vmalloc_fault+0x21c/0x380
+[  948.159060] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 fb 99 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 de 99 1c 00
+[  948.177944] RSP: 0018:fffffe0000031800 EFLAGS: 00010002
+[  948.183285] RAX: ffff888216401000 RBX: ffffc90001c53920 RCX: ffffffff830009b7
+[  948.190538] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[  948.197791] RBP: fffffe0000031830 R08: 0000000000000000 R09: 0000000000000000
+[  948.205041] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000070
+[  948.212293] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[  948.219545] FS:  000000c420088768(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[  948.227752] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  948.233616] CR2: ffffc90001c53920 CR3: 000000020d5df000 CR4: 00000000001406e0
+[  948.240872] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  948.248125] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  948.255375] Call Trace:
+[  948.257940]  <#DF>
+[  948.260077]  __do_page_fault+0x23f/0x630
+[  948.264125]  ? _raw_spin_unlock_irqrestore+0x33/0x50
+[  948.269214]  ? up+0x2d/0x50
+[  948.272128]  do_page_fault+0x4e/0x16d
+[  948.275912]  page_fault+0x1e/0x30
diff --git a/pkg/report/testdata/linux/report/325 b/pkg/report/testdata/linux/report/325
new file mode 100644
index 000000000..ccc357f15
--- /dev/null
+++ b/pkg/report/testdata/linux/report/325
@@ -0,0 +1,55 @@
+TITLE: PANIC: double fault in __udp6_lib_lookup
+CORRUPTED: Y
+
+[ 1017.993148] PANIC: double fault, error_code: 0x0
+[ 1017.997929] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #137
+[ 1018.004216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1018.013568] RIP: 0010:__udp6_lib_lookup+0x22/0x3e0
+[ 1018.018469] Code: 41 29 d5 e9 1c fd ff ff 55 48 89 e5 41 57 41 89 d7 41 56 49 89 ce 41 55 41 54 45 89 c4 53 48 89 fb 66 41 c1 c4 08 48 83 ec 28 <48> 89 7d d0 48 89 75 c8 44 89 4d c4 e8 1d 05 77 fe 44 8b ab 78 06
+[ 1018.037441] RSP: 0018:ffff888216f8bfd8 EFLAGS: 00010296
+[ 1018.042772] RAX: ffff8881d8505470 RBX: ffff8881d92f8200 RCX: ffff8881d8505450
+[ 1018.050013] RDX: 0000000000000000 RSI: ffff8881d8505460 RDI: ffff8881d92f8200
+[ 1018.057256] RBP: ffff888216f8c028 R08: 00000000000061ec R09: 0000000000000004
+[ 1018.064510] R10: 0000000000000000 R11: ffff8881d8505448 R12: 000000000000ec61
+[ 1018.071752] R13: 0000000000000000 R14: ffff8881d8505450 R15: 0000000000000000
+[ 1018.078998] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[ 1018.087248] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1018.093117] CR2: ffff888216f8bfc8 CR3: 00000002080a2000 CR4: 00000000001426e0
+[ 1018.100362] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1018.107603] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[ 1018.114845] Call Trace:
+[ 1018.117397] Kernel panic - not syncing: Machine halted.
+[ 1018.122732] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #137
+[ 1018.129030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1018.138360] Call Trace:
+[ 1018.140945]  <#DF>
+[ 1018.143073]  dump_stack+0xaa/0xd8
+[ 1018.146501]  panic+0x154/0x339
+[ 1018.149666]  ? get_cpu_entry_area+0xc/0x30
+[ 1018.153870]  df_debug+0x28/0x2a
+[ 1018.157123]  do_double_fault+0xb5/0x120
+[ 1018.161068]  double_fault+0x1e/0x30
+[ 1018.164682] RIP: 0010:__udp6_lib_lookup+0x22/0x3e0
+[ 1018.169582] Code: 41 29 d5 e9 1c fd ff ff 55 48 89 e5 41 57 41 89 d7 41 56 49 89 ce 41 55 41 54 45 89 c4 53 48 89 fb 66 41 c1 c4 08 48 83 ec 28 <48> 89 7d d0 48 89 75 c8 44 89 4d c4 e8 1d 05 77 fe 44 8b ab 78 06
+[ 1018.188455] RSP: 0018:ffff888216f8bfd8 EFLAGS: 00010296
+[ 1018.193793] RAX: ffff8881d8505470 RBX: ffff8881d92f8200 RCX: ffff8881d8505450
+[ 1018.201036] RDX: 0000000000000000 RSI: ffff8881d8505460 RDI: ffff8881d92f8200
+[ 1018.208278] RBP: ffff888216f8c028 R08: 00000000000061ec R09: 0000000000000004
+[ 1018.215518] R10: 0000000000000000 R11: ffff8SeaBIOS (version 1.8.2-20181112_143635-google)
+Total RAM Size = 0x00000001e0000000 = 7680 MiB
+CPUs found: 2     Max CPUs supported: 2
+found virtio-scsi at 0:3
+virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
+virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
+drive 0x000f2a70: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
+Booting from Hard Disk 0...
+early console in extract_kernel
+input_data: 0x00000000034982e9
+input_len: 0x00000000014e8997
+output: 0x0000000001000000
+output_len: 0x00000000039369f8
+kernel_total_size: 0x0000000003826000
+trampoline_32bit: 0x000000000009d000
+
+Decompressing Linux... Parsing ELF... done.
+Booting the kernel.
diff --git a/pkg/report/testdata/linux/report/326 b/pkg/report/testdata/linux/report/326
new file mode 100644
index 000000000..552d98387
--- /dev/null
+++ b/pkg/report/testdata/linux/report/326
@@ -0,0 +1,97 @@
+TITLE: PANIC: double fault in corrupted
+CORRUPTED: Y
+
+[ 1009.603175] PANIC: double fault, error_code: 0x0
+[ 1009.607950] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0+ #136
+[ 1009.609860] BUG: unable to handle kernel paging request at ffff888216edd110
+[ 1009.614242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1009.621332] #PF error: [normal kernel read fault]
+[ 1009.630672] RIP: 0010:__udp6_lib_lookup+0x10e/0x3e0
+[ 1009.635480] PGD 4801067 P4D 4801067 PUD 4804067 PMD 216f8c063 
+[ 1009.635500] BAD
+[ 1009.640473] Code: ff ff 75 20 45 89 e0 4c 89 f1 44 89 fa 44 8b 4d c4 48 8b 75 c8 23 58 10 48 8b 7d d0 48 c1 e3 04 48 03 58 08 8b 45 10 53 41 55 <50> e8 ec e8 ff ff 48 83 c4 20 48 85 c0 48 89 c3 0f 84 1e 01 00 00
+[ 1009.646425] general protection fault: 0000 [#1] PREEMPT SMP
+[ 1009.648283] RSP: 0018:ffff888216f8c000 EFLAGS: 00010282
+[ 1009.667159] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #136
+[ 1009.672843] RAX: 0000000000000000 RBX: ffffc90002ae47b0 RCX: ffff8881d7e7f650
+[ 1009.678184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1009.684473] RDX: 0000000000000000 RSI: ffff8881d7e7f660 RDI: ffff8881d9fa2140
+[ 1009.691728] RIP: 0010:vmalloc_fault+0x21c/0x380
+[ 1009.701049] RBP: ffff888216f8c068 R08: 0000000000008119 R09: 0000000000000004
+[ 1009.708294] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 ab 80 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 8e 80 1c 00
+[ 1009.712931] R10: 0000000000000000 R11: ffff8881d7e7f648 R12: 0000000000008119
+[ 1009.720178] RSP: 0018:ffff888218303bb0 EFLAGS: 00010006
+[ 1009.739069] R13: 0000000000000000 R14: ffff8881d7e7f650 R15: 0000000000000000
+[ 1009.746316] RAX: ffff888216ebe000 RBX: ffffc90000cc0000 RCX: ffffffff830009b7
+[ 1009.751657] FS:  0000000000000000(0000) GS:ffff888218200000(0000) knlGS:0000000000000000
+[ 1009.758907] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[ 1009.766172] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1009.774391] RBP: ffff888218303be0 R08: 0000000000000000 R09: 0000000000000000
+[ 1009.781643] CR2: ffff888216f8bff8 CR3: 000000020d180000 CR4: 00000000001406f0
+[ 1009.787498] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[ 1009.794743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1009.801987] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[ 1009.809236] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[ 1009.816479] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[ 1009.823751] Call Trace:
+[ 1009.831014] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1009.839239] Kernel panic - not syncing: Machine halted.
+[ 1009.841798] CR2: ffffc90000cc0000 CR3: 000000020d180000 CR4: 00000000001406e0
+[ 1009.860240] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1009.867524] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[ 1009.874770] Call Trace:
+[ 1009.877336]  <IRQ>
+[ 1009.879473] general protection fault: 0000 [#2] PREEMPT SMP
+[ 1009.885162] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #136
+[ 1009.891459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1009.900804] RIP: 0010:vmalloc_fault+0x21c/0x380
+[ 1009.905455] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 ab 80 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 8e 80 1c 00
+[ 1009.924336] RSP: 0018:ffff888218303760 EFLAGS: 00010006
+[ 1009.929680] RAX: ffff888216ebe000 RBX: ffffc90000d07030 RCX: ffffffff830009b7
+[ 1009.936934] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[ 1009.944188] RBP: ffff888218303790 R08: 0000000000000000 R09: 0000000000000000
+[ 1009.951441] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[ 1009.958695] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[ 1009.965950] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[ 1009.974159] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1009.980028] CR2: ffffc90000d07030 CR3: 000000020d180000 CR4: 00000000001406e0
+[ 1009.987281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1009.994534] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[ 1010.001784] Call Trace:
+[ 1010.004346]  <IRQ>
+[ 1010.006485] general protection fault: 0000 [#3] PREEMPT SMP
+[ 1010.012177] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #136
+[ 1010.018475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1010.027840] RIP: 0010:vmalloc_fault+0x21c/0x380
+[ 1010.032504] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 ab 80 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 8e 80 1c 00
+[ 1010.051386] RSP: 0018:ffff888218303310 EFLAGS: 00010006
+[ 1010.056732] RAX: ffff888216ebe000 RBX: ffffc90000d07030 RCX: ffffffff830009b7
+[ 1010.063982] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[ 1010.071235] RBP: ffff888218303340 R08: 0000000000000000 R09: 0000000000000000
+[ 1010.078507] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[ 1010.085762] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[ 1010.093027] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[ 1010.101241] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1010.107104] CR2: ffffc90000d07030 CR3: 000000020d180000 CR4: 00000000001406e0
+[ 1010.114360] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1010.121613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[ 1010.128864] Call Trace:
+[ 1010.131432]  <IRQ>
+[ 1010.133573] general protection fault: 0000 [#4] PREEMPT SMP
+[ 1010.139263] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0+ #136
+[ 1010.145563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1010.154907] RIP: 0010:vmalloc_fault+0x21c/0x380
+[ 1010.159576] Code: f8 0f 1f 40 00 41 81 e7 80 00 00 00 48 89 45 d0 49 bf 00 00 00 c0 ff ff 0f 00 4d 0f 44 fd e8 ab 80 1c 00 4c 23 7d d0 4d 01 fc <4f> 8b 24 34 49 f7 c4 9f ff ff ff 0f 84 30 01 00 00 e8 8e 80 1c 00
+[ 1010.178462] RSP: 0018:ffff888218302ec0 EFLAGS: 00010006
+[ 1010.183820] RAX: ffff888216ebe000 RBX: ffffc90000d07030 RCX: ffffffff830009b7
+[ 1010.191073] RDX: 0000000000000000 RSI: ffffffff81118465 RDI: ffff888217caf098
+[ 1010.198336] RBP: ffff888218302ef0 R08: 0000000000000000 R09: 0000000000000000
+[ 1010.205585] R10: 0000000000000000 R11: 0000000000000000 R12: 000f888200000030
+[ 1010.212832] R13: 000ffffffffff000 R14: ffff888000000000 R15: 000f888200000000
+[ 1010.220088] FS:  0000000000000000(0000) GS:ffff888218300000(0000) knlGS:0000000000000000
+[ 1010.228298] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[ 1010.234161] CR2: ffffc90000d07030 CR3: 000000020d180000 CR4: 00000000001406e0
+[ 1010.241415] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[ 1010.248667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
+[ 1010.256105] Call Trace:
+[ 1010.258672]  <IRQ>
diff --git a/pkg/report/testdata/linux/report/327 b/pkg/report/testdata/linux/report/327
new file mode 100644
index 000000000..34e3b6c67
--- /dev/null
+++ b/pkg/report/testdata/linux/report/327
@@ -0,0 +1,22 @@
+TITLE: PANIC: double fault in corrupted
+CORRUPTED: Y
+
+[  812.717699] PANIC: double fault, error_code: 0x0
+[  812.722477] CSeaBIOS (version 1.8.2-20181112_143635-google)
+Total RAM Size = 0x00000001e0000000 = 7680 MiB
+CPUs found: 2     Max CPUs supported: 2
+found virtio-scsi at 0:3
+virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
+virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
+drive 0x000f2a70: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
+Booting from Hard Disk 0...
+early console in extract_kernel
+input_data: 0x000000000348e2e9
+input_len: 0x00000000014f61d2
+output: 0x0000000001000000
+output_len: 0x000000000393a9f8
+kernel_total_size: 0x0000000003826000
+trampoline_32bit: 0x000000000009d000
+
+Decompressing Linux... Parsing ELF... done.
+Booting the kernel.
diff --git a/pkg/report/testdata/linux/report/328 b/pkg/report/testdata/linux/report/328
new file mode 100644
index 000000000..70e8b79bb
--- /dev/null
+++ b/pkg/report/testdata/linux/report/328
@@ -0,0 +1,8 @@
+TITLE: kernel panic: stack is corrupted in ktime_get
+
+[ 1455.638039] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ktime_get+0x3f2/0x400
+[ 1455.648147] CPU: 0 PID: 26967 Comm: syz-executor3 Not tainted 4.20.0+ #172
+[ 1455.655169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[ 1455.664546] Call Trace:
+[ 1455.668432] Kernel Offset: disabled
+[ 1455.672061] Rebooting in 86400 seconds..
diff --git a/pkg/report/testdata/linux/report/329 b/pkg/report/testdata/linux/report/329
new file mode 100644
index 000000000..fe023be35
--- /dev/null
+++ b/pkg/report/testdata/linux/report/329
@@ -0,0 +1,309 @@
+TITLE: BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find
+CORRUPTED: Y
+
+[  235.855782] BUG: unable to handle kernel paging request at ffffc90001935030
+[  235.862918] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  235.869863] Oops: 0000 [#1] PREEMPT SMP KASAN
+[  235.874359] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  235.881712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  235.891078] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  235.896529] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  235.915438] RSP: 0018:ffff888192f06118 EFLAGS: 00010046
+[  235.920801] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  235.928067] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  235.935333] RBP: ffff888192f06290 R08: ffff888191cb0540 R09: 0000000000000000
+[  235.942597] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  235.949862] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  235.957132] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  235.965354] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  235.971228] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  235.978497] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  235.985770] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  235.993031] Call Trace:
+[  235.995620] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.002710] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.009656] Oops: 0000 [#2] PREEMPT SMP KASAN
+[  236.014149] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.021503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.030866] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.036313] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.055297] RSP: 0018:ffff888192f05a28 EFLAGS: 00010046
+[  236.060672] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.067936] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.075204] RBP: ffff888192f05ba0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.082472] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.089734] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.097008] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.105225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.111101] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.118395] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.125686] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.132961] Call Trace:
+[  236.135546] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.142631] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.149569] Oops: 0000 [#3] PREEMPT SMP KASAN
+[  236.154062] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.161412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.170771] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.176219] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.195114] RSP: 0018:ffff888192f05338 EFLAGS: 00010046
+[  236.200474] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.207737] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.215026] RBP: ffff888192f054b0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.222292] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.229558] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.236822] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.245045] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.250922] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.258187] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.265465] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.272726] Call Trace:
+[  236.275321] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.282407] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.289341] Oops: 0000 [#4] PREEMPT SMP KASAN
+[  236.293863] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.301215] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.310568] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.316032] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.334930] RSP: 0018:ffff888192f04c48 EFLAGS: 00010046
+[  236.340288] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.347551] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.354829] RBP: ffff888192f04dc0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.362094] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.369360] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.376624] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.384846] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.390735] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.398022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.405291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.412549] Call Trace:
+[  236.415133] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.422235] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.429169] Oops: 0000 [#5] PREEMPT SMP KASAN
+[  236.433661] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.441023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.450411] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.455874] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.474768] RSP: 0018:ffff888192f04558 EFLAGS: 00010046
+[  236.480125] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.487390] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.494652] RBP: ffff888192f046d0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.501925] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.509187] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.516455] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.524676] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.530553] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.537817] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.545080] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.552337] Call Trace:
+[  236.554924] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.562030] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.568971] Oops: 0000 [#6] PREEMPT SMP KASAN
+[  236.573463] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.580827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.590184] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.595629] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.614528] RSP: 0018:ffff888192f03e68 EFLAGS: 00010046
+[  236.619883] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.627146] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.634411] RBP: ffff888192f03fe0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.641678] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.648945] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.656231] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.664457] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.670334] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.677612] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.684879] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.692139] Call Trace:
+[  236.694726] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.701834] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.708769] Oops: 0000 [#7] PREEMPT SMP KASAN
+[  236.713275] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.720673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.730025] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.735471] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.754377] RSP: 0018:ffff888192f03778 EFLAGS: 00010046
+[  236.759734] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.767006] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.774285] RBP: ffff888192f038f0 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.781548] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.788815] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.796082] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.804310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.810187] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.817454] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.824717] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.832067] Call Trace:
+[  236.834665] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.841760] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.848694] Oops: 0000 [#8] PREEMPT SMP KASAN
+[  236.853185] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  236.860533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  236.869908] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  236.875353] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  236.894267] RSP: 0018:ffff888192f03088 EFLAGS: 00010046
+[  236.899626] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  236.906892] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  236.914174] RBP: ffff888192f03200 R08: ffff888191cb0540 R09: 0000000000000000
+[  236.921439] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  236.928705] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  236.935971] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  236.944197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  236.950087] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  236.957351] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  236.964612] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  236.971868] Call Trace:
+[  236.974454] BUG: unable to handle kernel paging request at ffffc90001935030
+[  236.981540] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  236.988474] Oops: 0000 [#9] PREEMPT SMP KASAN
+[  236.992968] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.000314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.009669] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.015117] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.034014] RSP: 0018:ffff888192f02998 EFLAGS: 00010046
+[  237.039371] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.046634] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.053897] RBP: ffff888192f02b10 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.061164] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.068426] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.075690] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.083927] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.089819] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.097126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.104388] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.111646] Call Trace:
+[  237.114231] BUG: unable to handle kernel paging request at ffffc90001935030
+[  237.121352] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  237.128294] Oops: 0000 [#10] PREEMPT SMP KASAN
+[  237.132886] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.140242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.149606] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.155065] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.173960] RSP: 0018:ffff888192f022a8 EFLAGS: 00010046
+[  237.179330] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.186595] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.193860] RBP: ffff888192f02420 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.201142] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.208404] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.215700] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.223921] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.229798] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.237095] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.244359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.251618] Call Trace:
+[  237.254211] BUG: unable to handle kernel paging request at ffffc90001935030
+[  237.261299] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  237.268235] Oops: 0000 [#11] PREEMPT SMP KASAN
+[  237.272821] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.280614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.289977] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.295423] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.314547] RSP: 0018:ffff888192f01bb8 EFLAGS: 00010046
+[  237.319903] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.327167] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.334446] RBP: ffff888192f01d30 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.341727] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.348999] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.356271] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.364489] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.370364] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.377647] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.384924] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.392200] Call Trace:
+[  237.394792] BUG: unable to handle kernel paging request at ffffc90001935030
+[  237.401884] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  237.408826] Oops: 0000 [#12] PREEMPT SMP KASAN
+[  237.413402] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.420772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.430130] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.435842] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.454737] RSP: 0018:ffff888192f014c8 EFLAGS: 00010046
+[  237.460103] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.467382] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.474675] RBP: ffff888192f01640 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.481957] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.489237] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.496535] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.504757] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.510630] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.517893] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.525157] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.532421] Call Trace:
+[  237.535008] BUG: unable to handle kernel paging request at ffffc90001935030
+[  237.542096] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  237.549031] Oops: 0000 [#13] PREEMPT SMP KASAN
+[  237.553612] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.560964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.570322] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.575775] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.594686] RSP: 0018:ffff888192f00dd8 EFLAGS: 00010046
+[  237.600041] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.607308] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.614568] RBP: ffff888192f00f50 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.621834] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.629098] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.636366] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.644589] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.650465] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.657730] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.665003] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.672262] Call Trace:
+[  237.674863] BUG: unable to handle kernel paging request at ffffc90001935030
+[  237.681951] PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d418b067 PTE 0
+[  237.688880] Thread overran stack, or stack corrupted
+[  237.693979] Oops: 0000 [#14] PREEMPT SMP KASAN
+[  237.698557] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.705906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.715296] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.720751] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.739645] RSP: 0018:ffff888192f006e8 EFLAGS: 00010046
+[  237.745009] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  237.752275] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  237.759543] RBP: ffff888192f00860 R08: ffff888191cb0540 R09: 0000000000000000
+[  237.766808] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  237.774076] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  237.781347] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.789571] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.795449] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.802722] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.810016] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.817295] Call Trace:
+[  237.819912] usercopy: Kernel memory overwrite attempt detected to SLAB object 'names_cache' (offset 4104, size 2)!
+[  237.830563] ------------[ cut here ]------------
+[  237.835325] kernel BUG at mm/usercopy.c:102!
+[  237.839737] invalid opcode: 0000 [#15] PREEMPT SMP KASAN
+[  237.845196] CPU: 1 PID: 15621 Comm: syz-executor3 Not tainted 4.20.0-rc6+ #106
+[  237.852546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  237.861905] RIP: 0010:usercopy_abort+0xbb/0xbd
+[  237.866494] Code: c0 e8 a7 c7 b1 ff 48 8b 55 c0 49 89 d9 4d 89 f0 ff 75 c8 4c 89 e1 4c 89 ee 48 c7 c7 c0 da 34 88 ff 75 d0 41 57 e8 b7 13 98 ff <0f> 0b e8 7c c7 b1 ff e8 37 15 f5 ff 8b 95 e4 fe ff ff 4c 89 e1 31
+[  237.885392] RSP: 0018:ffff888192efeeb8 EFLAGS: 00010082
+[  237.890768] RAX: 0000000000000066 RBX: ffffffff88352480 RCX: 0000000000000000
+[  237.898034] RDX: 0000000000000000 RSI: ffffffff8165e495 RDI: 0000000000000005
+[  237.905299] RBP: ffff888192efef10 R08: ffff888191cb0540 R09: ffffed103b5e3ef8
+[  237.912566] R10: ffffed103b5e3ef8 R11: ffff8881daf1f7c7 R12: ffffffff8914c735
+[  237.919835] R13: ffffffff8834d920 R14: ffffffff8834d860 R15: ffffffff8834d820
+[  237.927105] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  237.935323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  237.941199] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  237.948467] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  237.955730] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  237.963005] Call Trace:
+[  237.965584] Modules linked in:
+[  237.968787] ---[ end trace 23b4b887290c3689 ]---
+[  237.973545] RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0
+[  237.978993] Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa 48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48 89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
+[  237.997888] RSP: 0018:ffff888192f06118 EFLAGS: 00010046
+[  238.003252] RAX: 0000000000000000 RBX: ffff8881bc041330 RCX: ffffffff818c0471
+[  238.010516] RDX: 1ffff92000326a06 RSI: 0000000000000008 RDI: ffffc90001935002
+[  238.017786] RBP: ffff888192f06290 R08: ffff888191cb0540 R09: 0000000000000000
+[  238.025068] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 0000000000000000
+[  238.032331] R13: ffffc90001935000 R14: dffffc0000000000 R15: ffff8881bc041330
+[  238.039599] FS:  00007f0ba64c3700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000
+[  238.047817] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  238.053693] CR2: ffffc90001935030 CR3: 00000001bc280000 CR4: 00000000001406e0
+[  238.060960] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+[  238.068225] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+[  238.075490] Kernel panic - not syncing: Fatal exception
+[  239.267271] Shutting down cpus with NMI
+[  239.272319] Kernel Offset: disabled
+[  239.275942] Rebooting in 86400 seconds..