pkg/report: decompile opcodes from reports

Improve Linux reports quality by decompiling "Code: " descriptions.

As that line of opcodes is not guaranteed to begin at the boundary of an
instruction, try to find the right boundary.

Handle the cases of multiple "Code: ..." lines by only decompiling the
first one. In most cases the last such line shows user-space bytes,
which is usually not of great importance.

12 files changed, 922 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/decompile/amd64/0.in b/pkg/report/testdata/linux/decompile/amd64/0.in
new file mode 100644
index 000000000..4006d9468
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/0.in
@@ -0,0 +1,48 @@
+------------[ cut here ]------------
+WARNING: CPU: 0 PID: 2468 at block/genhd.c:523 __device_add_disk+0xb76/0xd10 block/genhd.c:523
+Modules linked in:
+CPU: 0 PID: 2468 Comm: syz-executor.5 Tainted: G        W         5.14.0-rc1-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+RIP: 0010:__device_add_disk+0xb76/0xd10 block/genhd.c:523
+Code: fb ff ff 4c 89 ef 89 44 24 28 e8 75 c8 f6 fd 8b 44 24 28 e9 7a fb ff ff 4c 89 ef e8 f4 c7 f6 fd e9 e0 fb ff ff e8 4a a8 b0 fd <0f> 0b e9 97 fb ff ff 4c 89 ff e8 0b c8 f6 fd e9 b1 f6 ff ff 48 8b
+RSP: 0018:ffffc90018587a30 EFLAGS: 00010246
+RAX: 0000000000040000 RBX: ffff8880863cac00 RCX: ffffc90014873000
+RDX: 0000000000040000 RSI: ffffffff83c4df76 RDI: 0000000000000003
+RBP: ffff888027440400 R08: 0000000000000000 R09: ffffffff8bac1273
+R10: ffffffff83c4db08 R11: 0000000000000000 R12: 0000000000000001
+R13: ffff8880863cb09c R14: ffff8880274404a0 R15: 0000000000000000
+FS:  00007f66b7003700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000000544038 CR3: 000000003f471000 CR4: 00000000001526f0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+Call Trace:
+ add_disk include/linux/genhd.h:217 [inline]
+ md_alloc+0xa32/0x1190 drivers/md/md.c:5707
+ md_probe+0x69/0x70 drivers/md/md.c:5738
+ blk_request_module+0x111/0x1d0 block/genhd.c:660
+ blkdev_get_no_open+0x1d5/0x250 fs/block_dev.c:1332
+ blkdev_get_by_dev.part.0+0x25/0xdd0 fs/block_dev.c:1395
+ blkdev_get_by_dev+0x6b/0x80 fs/block_dev.c:1448
+ swsusp_check+0x4d/0x270 kernel/power/swap.c:1525
+ software_resume.part.0+0x102/0x1f0 kernel/power/hibernate.c:977
+ software_resume kernel/power/hibernate.c:86 [inline]
+ resume_store+0x161/0x190 kernel/power/hibernate.c:1179
+ kobj_attr_store+0x50/0x80 lib/kobject.c:856
+ sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139
+ kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296
+ call_write_iter include/linux/fs.h:2114 [inline]
+ new_sync_write+0x426/0x650 fs/read_write.c:518
+ vfs_write+0x75a/0xa40 fs/read_write.c:605
+ ksys_write+0x12d/0x250 fs/read_write.c:658
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+RIP: 0033:0x4665d9
+Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
+RSP: 002b:00007f66b7003188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
+RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
+RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003
+RBP: 00007f66b70031d0 R08: 0000000000000000 R09: 0000000000000000
+R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
+R13: 0000000000a9fb1f R14: 00007f66b7003300 R15: 0000000000022000
diff --git a/pkg/report/testdata/linux/decompile/amd64/0.out b/pkg/report/testdata/linux/decompile/amd64/0.out
new file mode 100644
index 000000000..1d50e885d
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/0.out
@@ -0,0 +1,66 @@
+------------[ cut here ]------------
+WARNING: CPU: 0 PID: 2468 at block/genhd.c:523 __device_add_disk+0xb76/0xd10 block/genhd.c:523
+Modules linked in:
+CPU: 0 PID: 2468 Comm: syz-executor.5 Tainted: G        W         5.14.0-rc1-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+RIP: 0010:__device_add_disk+0xb76/0xd10 block/genhd.c:523
+Code: fb ff ff 4c 89 ef 89 44 24 28 e8 75 c8 f6 fd 8b 44 24 28 e9 7a fb ff ff 4c 89 ef e8 f4 c7 f6 fd e9 e0 fb ff ff e8 4a a8 b0 fd <0f> 0b e9 97 fb ff ff 4c 89 ff e8 0b c8 f6 fd e9 b1 f6 ff ff 48 8b
+RSP: 0018:ffffc90018587a30 EFLAGS: 00010246
+RAX: 0000000000040000 RBX: ffff8880863cac00 RCX: ffffc90014873000
+RDX: 0000000000040000 RSI: ffffffff83c4df76 RDI: 0000000000000003
+RBP: ffff888027440400 R08: 0000000000000000 R09: ffffffff8bac1273
+R10: ffffffff83c4db08 R11: 0000000000000000 R12: 0000000000000001
+R13: ffff8880863cb09c R14: ffff8880274404a0 R15: 0000000000000000
+FS:  00007f66b7003700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000000544038 CR3: 000000003f471000 CR4: 00000000001526f0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+Call Trace:
+ add_disk include/linux/genhd.h:217 [inline]
+ md_alloc+0xa32/0x1190 drivers/md/md.c:5707
+ md_probe+0x69/0x70 drivers/md/md.c:5738
+ blk_request_module+0x111/0x1d0 block/genhd.c:660
+ blkdev_get_no_open+0x1d5/0x250 fs/block_dev.c:1332
+ blkdev_get_by_dev.part.0+0x25/0xdd0 fs/block_dev.c:1395
+ blkdev_get_by_dev+0x6b/0x80 fs/block_dev.c:1448
+ swsusp_check+0x4d/0x270 kernel/power/swap.c:1525
+ software_resume.part.0+0x102/0x1f0 kernel/power/hibernate.c:977
+ software_resume kernel/power/hibernate.c:86 [inline]
+ resume_store+0x161/0x190 kernel/power/hibernate.c:1179
+ kobj_attr_store+0x50/0x80 lib/kobject.c:856
+ sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139
+ kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296
+ call_write_iter include/linux/fs.h:2114 [inline]
+ new_sync_write+0x426/0x650 fs/read_write.c:518
+ vfs_write+0x75a/0xa40 fs/read_write.c:605
+ ksys_write+0x12d/0x250 fs/read_write.c:658
+ do_syscall_x64 arch/x86/entry/common.c:50 [inline]
+ do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
+ entry_SYSCALL_64_after_hwframe+0x44/0xae
+RIP: 0033:0x4665d9
+Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
+RSP: 002b:00007f66b7003188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
+RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
+RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003
+RBP: 00007f66b70031d0 R08: 0000000000000000 R09: 0000000000000000
+R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
+R13: 0000000000a9fb1f R14: 00007f66b7003300 R15: 0000000000022000
+----------------
+Code disassembly (best guess), 2 bytes skipped:
+   0:	ff 4c 89 ef          	decl   -0x11(%rcx,%rcx,4)
+   4:	89 44 24 28          	mov    %eax,0x28(%rsp)
+   8:	e8 75 c8 f6 fd       	callq  0xfdf6c882
+   d:	8b 44 24 28          	mov    0x28(%rsp),%eax
+  11:	e9 7a fb ff ff       	jmpq   0xfffffb90
+  16:	4c 89 ef             	mov    %r13,%rdi
+  19:	e8 f4 c7 f6 fd       	callq  0xfdf6c812
+  1e:	e9 e0 fb ff ff       	jmpq   0xfffffc03
+  23:	e8 4a a8 b0 fd       	callq  0xfdb0a872
+  28:	0f 0b                	ud2     <-- trapping instruction
+  2a:	e9 97 fb ff ff       	jmpq   0xfffffbc6
+  2f:	4c 89 ff             	mov    %r15,%rdi
+  32:	e8 0b c8 f6 fd       	callq  0xfdf6c842
+  37:	e9 b1 f6 ff ff       	jmpq   0xfffff6ed
+  3c:	48                   	rex.W
+  3d:	8b                   	.byte 0x8b
diff --git a/pkg/report/testdata/linux/decompile/amd64/1.in b/pkg/report/testdata/linux/decompile/amd64/1.in
new file mode 100644
index 000000000..b1631d1e0
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/1.in
@@ -0,0 +1,20 @@
+BUG: kernel NULL pointer dereference, address: 0000000000000000
+#PF: supervisor instruction fetch in kernel mode
+#PF: error_code(0x0010) - not-present page
+PGD 2cdec067 P4D 2cdec067 PUD 2937a067 PMD 0 
+Oops: 0010 [#1] PREEMPT SMP KASAN
+CPU: 0 PID: 15551 Comm: syz-executor.1 Not tainted 5.13.0-rc4-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+RIP: 0010:0x0
+Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
+RSP: 0018:ffffc90001bcf630 EFLAGS: 00010292
+RAX: 0000000000000000 RBX: ffff88801f456000 RCX: 000000000000004e
+RDX: ffff88801dc61224 RSI: ffff88801f456000 RDI: ffff888011879000
+RBP: 1ffff11003b8c244 R08: 000000000000001d R09: 0000000000000002
+R10: 0000000000000002 R11: ffff888037fb9c40 R12: ffff88801dc61224
+R13: dffffc0000000000 R14: 000000000000001d R15: ffff888011879000
+FS:  00007f7816197700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: ffffffffffffffd6 CR3: 0000000022965000 CR4: 00000000001506f0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
\ No newline at end of file
diff --git a/pkg/report/testdata/linux/decompile/amd64/1.out b/pkg/report/testdata/linux/decompile/amd64/1.out
new file mode 100644
index 000000000..b1631d1e0
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/1.out
@@ -0,0 +1,20 @@
+BUG: kernel NULL pointer dereference, address: 0000000000000000
+#PF: supervisor instruction fetch in kernel mode
+#PF: error_code(0x0010) - not-present page
+PGD 2cdec067 P4D 2cdec067 PUD 2937a067 PMD 0 
+Oops: 0010 [#1] PREEMPT SMP KASAN
+CPU: 0 PID: 15551 Comm: syz-executor.1 Not tainted 5.13.0-rc4-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+RIP: 0010:0x0
+Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
+RSP: 0018:ffffc90001bcf630 EFLAGS: 00010292
+RAX: 0000000000000000 RBX: ffff88801f456000 RCX: 000000000000004e
+RDX: ffff88801dc61224 RSI: ffff88801f456000 RDI: ffff888011879000
+RBP: 1ffff11003b8c244 R08: 000000000000001d R09: 0000000000000002
+R10: 0000000000000002 R11: ffff888037fb9c40 R12: ffff88801dc61224
+R13: dffffc0000000000 R14: 000000000000001d R15: ffff888011879000
+FS:  00007f7816197700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: ffffffffffffffd6 CR3: 0000000022965000 CR4: 00000000001506f0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
\ No newline at end of file
diff --git a/pkg/report/testdata/linux/decompile/amd64/2.in b/pkg/report/testdata/linux/decompile/amd64/2.in
new file mode 100644
index 000000000..7559caf25
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/2.in
@@ -0,0 +1,164 @@
+rcu: INFO: rcu_preempt self-detected stall on CPU
+rcu: 	0-...!: (2 ticks this GP) idle=4de/1/0x4000000000000000 softirq=11238/11238 fqs=0 
+	(t=13326 jiffies g=13217 q=742)
+rcu: rcu_preempt kthread timer wakeup didn't happen for 13325 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
+rcu: 	Possible timer handling issue on cpu=0 timer-softirq=29073
+rcu: rcu_preempt kthread starved for 13326 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
+rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
+rcu: RCU grace-period kthread stack dump:
+task:rcu_preempt     state:I stack:29096 pid:   14 ppid:     2 flags:0x00004000
+Call Trace:
+ context_switch kernel/sched/core.c:4683 [inline]
+ __schedule+0x93a/0x26f0 kernel/sched/core.c:5940
+ schedule+0xd3/0x270 kernel/sched/core.c:6019
+ schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1878
+ rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline]
+ rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+rcu: Stack dump where RCU GP kthread last ran:
+NMI backtrace for cpu 0
+CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: bat_events batadv_tt_purge
+Call Trace:
+ <IRQ>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
+ nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
+ nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
+ trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
+ rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479
+ print_cpu_stall kernel/rcu/tree_stall.h:623 [inline]
+ check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
+ rcu_pending kernel/rcu/tree.c:3922 [inline]
+ rcu_sched_clock_irq.cold+0x9a/0x747 kernel/rcu/tree.c:2641
+ update_process_times+0x16d/0x200 kernel/time/timer.c:1782
+ tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
+ tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
+ __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
+ __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
+Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e
+RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206
+RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a
+RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
+RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987
+R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0
+R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000
+ spin_unlock_bh include/linux/spinlock.h:399 [inline]
+ batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369
+ batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+NMI backtrace for cpu 0
+CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: bat_events batadv_tt_purge
+Call Trace:
+ <IRQ>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
+ nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
+ nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
+ trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
+ rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342
+ print_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
+ check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
+ rcu_pending kernel/rcu/tree.c:3922 [inline]
+ rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641
+ update_process_times+0x16d/0x200 kernel/time/timer.c:1782
+ tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
+ tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
+ __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
+ __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
+Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e
+RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206
+RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a
+RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
+RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987
+R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0
+R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000
+ spin_unlock_bh include/linux/spinlock.h:399 [inline]
+ batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369
+ batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+Sending NMI from CPU 0 to CPUs 1:
+NMI backtrace for cpu 1
+CPU: 1 PID: 9018 Comm: kworker/u4:2 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: events_unbound toggle_allocation_gate
+RIP: 0010:__sanitizer_cov_trace_const_cmp4+0xc/0x70 kernel/kcov.c:283
+Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 f0 01 00 e8 e4 ee ff ff 84 c0 74 4b 48 8b
+RSP: 0018:ffffc90000fd8df8 EFLAGS: 00000046
+RAX: 0000000000010002 RBX: ffff8880b9d424c0 RCX: 0000000000000000
+RDX: ffff88802e756280 RSI: 0000000000000001 RDI: 0000000000000003
+RBP: ffff88802539bb40 R08: 0000000000000007 R09: ffffffff904c64ab
+R10: ffffffff816467fb R11: 0000000000000000 R12: 0000000000000001
+R13: 0000000000000000 R14: ffff8880b9d423c0 R15: 0000000000000001
+FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000020000600 CR3: 000000000b68e000 CR4: 00000000001506e0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+Call Trace:
+ <IRQ>
+ cpu_max_bits_warn include/linux/cpumask.h:108 [inline]
+ cpumask_check include/linux/cpumask.h:115 [inline]
+ cpumask_test_cpu include/linux/cpumask.h:344 [inline]
+ cpu_online include/linux/cpumask.h:895 [inline]
+ trace_hrtimer_start include/trace/events/timer.h:195 [inline]
+ debug_activate kernel/time/hrtimer.c:476 [inline]
+ enqueue_hrtimer+0x4b/0x3e0 kernel/time/hrtimer.c:982
+ __run_hrtimer kernel/time/hrtimer.c:1554 [inline]
+ __hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
+RIP: 0010:smp_call_function_many_cond+0x452/0xc20 kernel/smp.c:967
+Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 c0 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31
+RSP: 0018:ffffc900037b7a00 EFLAGS: 00000293
+RAX: 0000000000000000 RBX: ffff8880b9c55de0 RCX: 0000000000000000
+RDX: ffff88802e756280 RSI: ffffffff816975f0 RDI: 0000000000000003
+RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
+R10: ffffffff81697616 R11: 0000000000000000 R12: ffffed101738abbd
+R13: 0000000000000000 R14: ffff8880b9c55de8 R15: 0000000000000001
+ on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133
+ on_each_cpu include/linux/smp.h:71 [inline]
+ text_poke_sync arch/x86/kernel/alternative.c:929 [inline]
+ text_poke_bp_batch+0x1b3/0x560 arch/x86/kernel/alternative.c:1114
+ text_poke_flush arch/x86/kernel/alternative.c:1268 [inline]
+ text_poke_flush arch/x86/kernel/alternative.c:1265 [inline]
+ text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1275
+ arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:145
+ jump_label_update+0x1d5/0x430 kernel/jump_label.c:830
+ static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
+ static_key_disable+0x16/0x20 kernel/jump_label.c:215
+ toggle_allocation_gate mm/kfence/core.c:637 [inline]
+ toggle_allocation_gate+0x185/0x390 mm/kfence/core.c:615
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
diff --git a/pkg/report/testdata/linux/decompile/amd64/2.out b/pkg/report/testdata/linux/decompile/amd64/2.out
new file mode 100644
index 000000000..87de89e9e
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/amd64/2.out
@@ -0,0 +1,185 @@
+rcu: INFO: rcu_preempt self-detected stall on CPU
+rcu: 	0-...!: (2 ticks this GP) idle=4de/1/0x4000000000000000 softirq=11238/11238 fqs=0 
+	(t=13326 jiffies g=13217 q=742)
+rcu: rcu_preempt kthread timer wakeup didn't happen for 13325 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
+rcu: 	Possible timer handling issue on cpu=0 timer-softirq=29073
+rcu: rcu_preempt kthread starved for 13326 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
+rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
+rcu: RCU grace-period kthread stack dump:
+task:rcu_preempt     state:I stack:29096 pid:   14 ppid:     2 flags:0x00004000
+Call Trace:
+ context_switch kernel/sched/core.c:4683 [inline]
+ __schedule+0x93a/0x26f0 kernel/sched/core.c:5940
+ schedule+0xd3/0x270 kernel/sched/core.c:6019
+ schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1878
+ rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline]
+ rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+rcu: Stack dump where RCU GP kthread last ran:
+NMI backtrace for cpu 0
+CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: bat_events batadv_tt_purge
+Call Trace:
+ <IRQ>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
+ nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
+ nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
+ trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
+ rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479
+ print_cpu_stall kernel/rcu/tree_stall.h:623 [inline]
+ check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
+ rcu_pending kernel/rcu/tree.c:3922 [inline]
+ rcu_sched_clock_irq.cold+0x9a/0x747 kernel/rcu/tree.c:2641
+ update_process_times+0x16d/0x200 kernel/time/timer.c:1782
+ tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
+ tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
+ __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
+ __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
+Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e
+RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206
+RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a
+RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
+RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987
+R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0
+R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000
+ spin_unlock_bh include/linux/spinlock.h:399 [inline]
+ batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369
+ batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+NMI backtrace for cpu 0
+CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: bat_events batadv_tt_purge
+Call Trace:
+ <IRQ>
+ __dump_stack lib/dump_stack.c:88 [inline]
+ dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
+ nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
+ nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
+ trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
+ rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342
+ print_cpu_stall kernel/rcu/tree_stall.h:625 [inline]
+ check_cpu_stall kernel/rcu/tree_stall.h:700 [inline]
+ rcu_pending kernel/rcu/tree.c:3922 [inline]
+ rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641
+ update_process_times+0x16d/0x200 kernel/time/timer.c:1782
+ tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
+ tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
+ __run_hrtimer kernel/time/hrtimer.c:1537 [inline]
+ __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
+Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e
+RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206
+RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a
+RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
+RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987
+R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0
+R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000
+ spin_unlock_bh include/linux/spinlock.h:399 [inline]
+ batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369
+ batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+Sending NMI from CPU 0 to CPUs 1:
+NMI backtrace for cpu 1
+CPU: 1 PID: 9018 Comm: kworker/u4:2 Not tainted 5.14.0-rc2-syzkaller #0
+Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+Workqueue: events_unbound toggle_allocation_gate
+RIP: 0010:__sanitizer_cov_trace_const_cmp4+0xc/0x70 kernel/kcov.c:283
+Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 f0 01 00 e8 e4 ee ff ff 84 c0 74 4b 48 8b
+RSP: 0018:ffffc90000fd8df8 EFLAGS: 00000046
+RAX: 0000000000010002 RBX: ffff8880b9d424c0 RCX: 0000000000000000
+RDX: ffff88802e756280 RSI: 0000000000000001 RDI: 0000000000000003
+RBP: ffff88802539bb40 R08: 0000000000000007 R09: ffffffff904c64ab
+R10: ffffffff816467fb R11: 0000000000000000 R12: 0000000000000001
+R13: 0000000000000000 R14: ffff8880b9d423c0 R15: 0000000000000001
+FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000020000600 CR3: 000000000b68e000 CR4: 00000000001506e0
+DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
+DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
+Call Trace:
+ <IRQ>
+ cpu_max_bits_warn include/linux/cpumask.h:108 [inline]
+ cpumask_check include/linux/cpumask.h:115 [inline]
+ cpumask_test_cpu include/linux/cpumask.h:344 [inline]
+ cpu_online include/linux/cpumask.h:895 [inline]
+ trace_hrtimer_start include/trace/events/timer.h:195 [inline]
+ debug_activate kernel/time/hrtimer.c:476 [inline]
+ enqueue_hrtimer+0x4b/0x3e0 kernel/time/hrtimer.c:982
+ __run_hrtimer kernel/time/hrtimer.c:1554 [inline]
+ __hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1601
+ hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
+ __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106
+ sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100
+ </IRQ>
+ asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
+RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
+RIP: 0010:smp_call_function_many_cond+0x452/0xc20 kernel/smp.c:967
+Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 c0 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31
+RSP: 0018:ffffc900037b7a00 EFLAGS: 00000293
+RAX: 0000000000000000 RBX: ffff8880b9c55de0 RCX: 0000000000000000
+RDX: ffff88802e756280 RSI: ffffffff816975f0 RDI: 0000000000000003
+RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
+R10: ffffffff81697616 R11: 0000000000000000 R12: ffffed101738abbd
+R13: 0000000000000000 R14: ffff8880b9c55de8 R15: 0000000000000001
+ on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133
+ on_each_cpu include/linux/smp.h:71 [inline]
+ text_poke_sync arch/x86/kernel/alternative.c:929 [inline]
+ text_poke_bp_batch+0x1b3/0x560 arch/x86/kernel/alternative.c:1114
+ text_poke_flush arch/x86/kernel/alternative.c:1268 [inline]
+ text_poke_flush arch/x86/kernel/alternative.c:1265 [inline]
+ text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1275
+ arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:145
+ jump_label_update+0x1d5/0x430 kernel/jump_label.c:830
+ static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
+ static_key_disable+0x16/0x20 kernel/jump_label.c:215
+ toggle_allocation_gate mm/kfence/core.c:637 [inline]
+ toggle_allocation_gate+0x185/0x390 mm/kfence/core.c:615
+ process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
+ worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
+ kthread+0x3e5/0x4d0 kernel/kthread.c:319
+ ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
+----------------
+Code disassembly (best guess):
+   0:	1d ad 91 bc 7e       	sbb    $0x7ebc91ad,%eax
+   5:	65 8b 05 a6 91 bc 7e 	mov    %gs:0x7ebc91a6(%rip),%eax        # 0x7ebc91b2
+   c:	a9 00 ff ff 00       	test   $0xffff00,%eax
+  11:	74 45                	je     0x58
+  13:	bf 01 00 00 00       	mov    $0x1,%edi
+  18:	e8 15 2a 09 00       	callq  0x92a32
+  1d:	e8 50 84 35 00       	callq  0x358472
+  22:	fb                   	sti    
+  23:	65 8b 05 88 91 bc 7e 	mov    %gs:0x7ebc9188(%rip),%eax        # 0x7ebc91b2
+  2a:	85 c0                	test   %eax,%eax <-- trapping instruction
+  2c:	74 58                	je     0x86
+  2e:	5b                   	pop    %rbx
+  2f:	5d                   	pop    %rbp
+  30:	c3                   	retq   
+  31:	65 8b 05 d6 98 bc 7e 	mov    %gs:0x7ebc98d6(%rip),%eax        # 0x7ebc990e
+  38:	85 c0                	test   %eax,%eax
+  3a:	75 a2                	jne    0xffffffde
+  3c:	0f 0b                	ud2    
+  3e:	eb 9e                	jmp    0xffffffde
diff --git a/pkg/report/testdata/linux/decompile/arm/0.in b/pkg/report/testdata/linux/decompile/arm/0.in
new file mode 100644
index 000000000..00230f823
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm/0.in
@@ -0,0 +1,108 @@
+8<--- cut here ---
+Unable to handle kernel paging request at virtual address e03c4000
+pgd = 86c9a3c0
+[e03c4000] *pgd=80000080007003, *pmd=836b2003, *pte=00000000
+Internal error: Oops: a07 [#1] PREEMPT SMP ARM
+Modules linked in:
+CPU: 1 PID: 7540 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0
+Hardware name: ARM-Versatile Express
+PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline]
+PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline]
+PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35
+LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline]
+LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35
+pc : [<808f355c>]    lr : [<808f3548>]    psr: 20060013
+sp : 86cebad0  ip : 86cebb00  fp : 86cebafc
+r10: 0000ff00  r9 : 00000020  r8 : ffffffff
+r7 : 00000000  r6 : 00000000  r5 : e03c3000  r4 : 00090000
+r3 : e03c4020  r2 : 000003f0  r1 : 00000020  r0 : 000007f8
+Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
+Control: 30c5387d  Table: 86c9a3c0  DAC: 00000000
+Process syz-executor.0 (pid: 7540, stack limit = 0x86cea210)
+Stack: (0x86cebad0 to 0x86cec000)
+bac0:                                     00090000 844b9000 00000000 e03c3000
+bae0: 0000ff00 00090000 808f34c8 00000000 86cebb4c 86cebb00 808f3340 808f34d4
+bb00: 0000ff00 00000020 86cebb04 56b92eae 8409a134 844fe41c 00080000 00000000
+bb20: 00000000 86cebb74 844b9000 000002f0 00000010 833a7c6c 833a7c6c 83420800
+bb40: 86cebb6c 86cebb50 809b51b4 808f319c 86cebba4 86cebb60 844b9000 000007f8
+bb60: 86cebbac 86cebb70 808ed840 809b5178 833a7c6c 00000000 00000010 000007f8
+bb80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844fe400 82b5a808
+bba0: 86cebbc4 86cebbb0 808e7814 808ed770 844b9000 833a7b34 86cebcac 86cebbc8
+bbc0: 808ec8ac 808e77bc 86cebc64 844b9000 844b90a8 00000000 00000000 00000400
+bbe0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010
+bc00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000
+bc20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001
+bc40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
+bc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae
+bc80: 83420800 83420800 00000000 844fe400 00000001 00000000 844fe400 00000000
+bca0: 86cebce4 86cebcb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae
+bcc0: 00000000 844b9000 83420800 844fe400 00000001 00000000 86cebdc4 86cebce8
+bce0: 808ebb40 8095bbc0 86cebd04 86cebcf8 8181dacc 00000400 00000300 00000400
+bd00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000
+bd20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000
+bd40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000
+bd60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
+bd80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120
+bda0: 83420800 00000001 00000000 0000003a 83420800 86101000 86cebde4 86cebdc8
+bdc0: 8095bea8 808eb994 00000000 86101000 00004b3a 83420800 86cebe64 86cebde8
+bde0: 809535a8 8095be08 8181dacc 8181d97c 86cebe2c 86cebe00 8181c9a4 8181dabc
+be00: 00000000 00000000 81f94a4c 00000103 82bfd371 8550e140 00000003 00000036
+be20: 86cebe54 86cebe30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd
+be40: 00004b3a 86101000 8550e140 fffff73a 00000000 86101000 86cebf0c 86cebe68
+be60: 8093f890 80951c38 00000000 56b92eae 837f97e8 0000003a 8353f2f0 0000004b
+be80: 00000001 8550e140 00000003 00000036 86cebeec 86cebea0 80701b40 806f7810
+bea0: 00000001 0000004b 0000003a 86cebebc 858256d0 83dc8180 00004b3a 8550e10b
+bec0: 86cebeb0 8550e140 00000003 56b92eae 821280c8 00000000 8550e140 56b92eae
+bee0: 86cebf0c 00004b3a 00000000 8550e141 00000000 8550e140 00000003 8353f2f0
+bf00: 86cebfa4 86cebf10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90
+bf20: 828a2438 80200e90 86d32080 80200060 86cebf4c 86cebf40 8181dacc 8181d97c
+bf40: 86cebf74 86cebf50 8181cb8c 8181dabc 86cebf98 80384d84 828abd1c 80200e90
+bf60: 60000093 30c5387d 86cebf94 86cebf78 828abd1c 56b92eae 00000000 00000000
+bf80: 00000000 ffffffff 00000036 80200224 86cea000 00000036 00000000 86cebfa8
+bfa0: 80200060 804f32e0 00000000 00000000 00000003 00004b3a 00000000 00000000
+bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c
+bfe0: 76f0f048 76f0f038 00018d58 0004b620 60000010 00000003 00000000 00000000
+Backtrace: 
+[<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291)
+ r10:00000000 r9:808f34c8 r8:00090000 r7:0000ff00 r6:e03c3000 r5:00000000
+ r4:844b9000 r3:00090000
+[<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline])
+[<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258)
+ r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:844b9000
+ r4:86cebb74
+[<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232)
+ r5:000007f8 r4:844b9000
+[<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315)
+ r7:82b5a808 r6:844fe400 r5:833a7b34 r4:808ed764
+[<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143)
+ r5:833a7b34 r4:844b9000
+[<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021)
+ r10:00000000 r9:844fe400 r8:00000000 r7:00000001 r6:844fe400 r5:00000000
+ r4:83420800
+[<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204)
+ r8:00000000 r7:00000001 r6:844fe400 r5:83420800 r4:844b9000
+[<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405)
+ r10:86101000 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800
+ r4:833aa120
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline])
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline])
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713)
+ r7:83420800 r6:00004b3a r5:86101000 r4:00000000
+[<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801)
+ r10:86101000 r9:00000000 r8:fffff73a r7:8550e140 r6:86101000 r5:00004b3a
+ r4:fffffdfd
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739)
+ r10:8353f2f0 r9:00000003 r8:8550e140 r7:00000000 r6:8550e141 r5:00000000
+ r4:00004b3a
+[<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
+Exception stack(0x86cebfa8 to 0x86cebff0)
+bfa0:                   00000000 00000000 00000003 00004b3a 00000000 00000000
+bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c
+bfe0: 76f0f048 76f0f038 00018d58 0004b620
+ r10:00000036 r9:86cea000 r8:80200224 r7:00000036 r6:ffffffff r5:00000000
+ r4:00000000
+Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) 
+---[ end trace 10de0daf1584b951 ]---
diff --git a/pkg/report/testdata/linux/decompile/arm/0.out b/pkg/report/testdata/linux/decompile/arm/0.out
new file mode 100644
index 000000000..49a85c720
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm/0.out
@@ -0,0 +1,115 @@
+8<--- cut here ---
+Unable to handle kernel paging request at virtual address e03c4000
+pgd = 86c9a3c0
+[e03c4000] *pgd=80000080007003, *pmd=836b2003, *pte=00000000
+Internal error: Oops: a07 [#1] PREEMPT SMP ARM
+Modules linked in:
+CPU: 1 PID: 7540 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0
+Hardware name: ARM-Versatile Express
+PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline]
+PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline]
+PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35
+LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline]
+LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35
+pc : [<808f355c>]    lr : [<808f3548>]    psr: 20060013
+sp : 86cebad0  ip : 86cebb00  fp : 86cebafc
+r10: 0000ff00  r9 : 00000020  r8 : ffffffff
+r7 : 00000000  r6 : 00000000  r5 : e03c3000  r4 : 00090000
+r3 : e03c4020  r2 : 000003f0  r1 : 00000020  r0 : 000007f8
+Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
+Control: 30c5387d  Table: 86c9a3c0  DAC: 00000000
+Process syz-executor.0 (pid: 7540, stack limit = 0x86cea210)
+Stack: (0x86cebad0 to 0x86cec000)
+bac0:                                     00090000 844b9000 00000000 e03c3000
+bae0: 0000ff00 00090000 808f34c8 00000000 86cebb4c 86cebb00 808f3340 808f34d4
+bb00: 0000ff00 00000020 86cebb04 56b92eae 8409a134 844fe41c 00080000 00000000
+bb20: 00000000 86cebb74 844b9000 000002f0 00000010 833a7c6c 833a7c6c 83420800
+bb40: 86cebb6c 86cebb50 809b51b4 808f319c 86cebba4 86cebb60 844b9000 000007f8
+bb60: 86cebbac 86cebb70 808ed840 809b5178 833a7c6c 00000000 00000010 000007f8
+bb80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844fe400 82b5a808
+bba0: 86cebbc4 86cebbb0 808e7814 808ed770 844b9000 833a7b34 86cebcac 86cebbc8
+bbc0: 808ec8ac 808e77bc 86cebc64 844b9000 844b90a8 00000000 00000000 00000400
+bbe0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010
+bc00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000
+bc20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001
+bc40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
+bc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae
+bc80: 83420800 83420800 00000000 844fe400 00000001 00000000 844fe400 00000000
+bca0: 86cebce4 86cebcb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae
+bcc0: 00000000 844b9000 83420800 844fe400 00000001 00000000 86cebdc4 86cebce8
+bce0: 808ebb40 8095bbc0 86cebd04 86cebcf8 8181dacc 00000400 00000300 00000400
+bd00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000
+bd20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000
+bd40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000
+bd60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
+bd80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120
+bda0: 83420800 00000001 00000000 0000003a 83420800 86101000 86cebde4 86cebdc8
+bdc0: 8095bea8 808eb994 00000000 86101000 00004b3a 83420800 86cebe64 86cebde8
+bde0: 809535a8 8095be08 8181dacc 8181d97c 86cebe2c 86cebe00 8181c9a4 8181dabc
+be00: 00000000 00000000 81f94a4c 00000103 82bfd371 8550e140 00000003 00000036
+be20: 86cebe54 86cebe30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd
+be40: 00004b3a 86101000 8550e140 fffff73a 00000000 86101000 86cebf0c 86cebe68
+be60: 8093f890 80951c38 00000000 56b92eae 837f97e8 0000003a 8353f2f0 0000004b
+be80: 00000001 8550e140 00000003 00000036 86cebeec 86cebea0 80701b40 806f7810
+bea0: 00000001 0000004b 0000003a 86cebebc 858256d0 83dc8180 00004b3a 8550e10b
+bec0: 86cebeb0 8550e140 00000003 56b92eae 821280c8 00000000 8550e140 56b92eae
+bee0: 86cebf0c 00004b3a 00000000 8550e141 00000000 8550e140 00000003 8353f2f0
+bf00: 86cebfa4 86cebf10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90
+bf20: 828a2438 80200e90 86d32080 80200060 86cebf4c 86cebf40 8181dacc 8181d97c
+bf40: 86cebf74 86cebf50 8181cb8c 8181dabc 86cebf98 80384d84 828abd1c 80200e90
+bf60: 60000093 30c5387d 86cebf94 86cebf78 828abd1c 56b92eae 00000000 00000000
+bf80: 00000000 ffffffff 00000036 80200224 86cea000 00000036 00000000 86cebfa8
+bfa0: 80200060 804f32e0 00000000 00000000 00000003 00004b3a 00000000 00000000
+bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c
+bfe0: 76f0f048 76f0f038 00018d58 0004b620 60000010 00000003 00000000 00000000
+Backtrace: 
+[<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291)
+ r10:00000000 r9:808f34c8 r8:00090000 r7:0000ff00 r6:e03c3000 r5:00000000
+ r4:844b9000 r3:00090000
+[<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline])
+[<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258)
+ r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:844b9000
+ r4:86cebb74
+[<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232)
+ r5:000007f8 r4:844b9000
+[<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315)
+ r7:82b5a808 r6:844fe400 r5:833a7b34 r4:808ed764
+[<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143)
+ r5:833a7b34 r4:844b9000
+[<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021)
+ r10:00000000 r9:844fe400 r8:00000000 r7:00000001 r6:844fe400 r5:00000000
+ r4:83420800
+[<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204)
+ r8:00000000 r7:00000001 r6:844fe400 r5:83420800 r4:844b9000
+[<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405)
+ r10:86101000 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800
+ r4:833aa120
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline])
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline])
+[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713)
+ r7:83420800 r6:00004b3a r5:86101000 r4:00000000
+[<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801)
+ r10:86101000 r9:00000000 r8:fffff73a r7:8550e140 r6:86101000 r5:00004b3a
+ r4:fffffdfd
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline])
+[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739)
+ r10:8353f2f0 r9:00000003 r8:8550e140 r7:00000000 r6:8550e141 r5:00000000
+ r4:00004b3a
+[<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
+Exception stack(0x86cebfa8 to 0x86cebff0)
+bfa0:                   00000000 00000000 00000003 00004b3a 00000000 00000000
+bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c
+bfe0: 76f0f048 76f0f038 00018d58 0004b620
+ r10:00000036 r9:86cea000 r8:80200224 r7:00000036 r6:ffffffff r5:00000000
+ r4:00000000
+Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) 
+---[ end trace 10de0daf1584b951 ]---
+----------------
+Code disassembly (best guess):
+   0:	9a000012 	bls	0x50
+   4:	e2853020 	add	r3, r5, #32
+   8:	e1a02000 	mov	r2, r0
+   c:	e2422008 	sub	r2, r2, #8
+  10:	e5034020 	str	r4, [r3, #-32]	; 0xffffffe0 <-- trapping instruction
diff --git a/pkg/report/testdata/linux/decompile/arm64/0.in b/pkg/report/testdata/linux/decompile/arm64/0.in
new file mode 100644
index 000000000..654ec9506
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm64/0.in
@@ -0,0 +1,42 @@
+------------[ cut here ]------------
+kernel BUG at kernel/power/snapshot.c:257!
+Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
+Modules linked in:
+CPU: 1 PID: 14825 Comm: syz-executor.1 Not tainted 5.11.0-rc6-syzkaller-00055-g3aaf0a27ffc2 #0
+Hardware name: linux,dummy-virt (DT)
+pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
+pc : free_image_page kernel/power/snapshot.c:257 [inline]
+pc : free_image_page kernel/power/snapshot.c:253 [inline]
+pc : free_list_of_pages kernel/power/snapshot.c:274 [inline]
+pc : memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726
+lr : free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173
+sp : ffff800014ffbc50
+x29: ffff800014ffbc50 x28: f2ff000029a10070 
+x27: ffff800012d4c000 x26: f2ff000029a10008 
+x25: f3ff00002672c700 x24: ffff800012d4c000 
+x23: 00007fffffffffff x22: f2ff000029a10018 
+x21: 0000000000000001 x20: ffff800013b576d0 
+x19: f3ff00002672c700 x18: 0000000000000000 
+x17: 0000000000000000 x16: 0000000000000000 
+x15: 0000000000000000 x14: 0000000000000000 
+x13: 0000000000000000 x12: 0000000000000000 
+x11: 0000000000000000 x10: 0000000000000000 
+x9 : 0000000000000000 x8 : 0000000000000000 
+x7 : 0000000000000000 x6 : 00000000000001ff 
+x5 : 0000000000000000 x4 : 0000000000000000 
+x3 : ffff800013b576d0 x2 : fdff000026770000 
+x1 : 0000000000000001 x0 : 0200000026770000 
+Call trace:
+ free_image_page kernel/power/snapshot.c:257 [inline]
+ free_list_of_pages kernel/power/snapshot.c:274 [inline]
+ memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726
+ free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173
+ snapshot_release+0x74/0x90 kernel/power/user.c:120
+ __fput+0x78/0x230 fs/file_table.c:280
+ ____fput+0x10/0x20 fs/file_table.c:313
+ task_work_run+0x80/0x160 kernel/task_work.c:140
+ tracehook_notify_resume include/linux/tracehook.h:189 [inline]
+ do_notify_resume+0x20c/0x13e0 arch/arm64/kernel/signal.c:939
+ work_pending+0xc/0x3d4
+Code: cb000260 d34cfc00 97fcf6fe 35fffc20 (d4210000) 
+---[ end trace 9cab793efd001cad ]---
diff --git a/pkg/report/testdata/linux/decompile/arm64/0.out b/pkg/report/testdata/linux/decompile/arm64/0.out
new file mode 100644
index 000000000..2b6406f60
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm64/0.out
@@ -0,0 +1,49 @@
+------------[ cut here ]------------
+kernel BUG at kernel/power/snapshot.c:257!
+Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
+Modules linked in:
+CPU: 1 PID: 14825 Comm: syz-executor.1 Not tainted 5.11.0-rc6-syzkaller-00055-g3aaf0a27ffc2 #0
+Hardware name: linux,dummy-virt (DT)
+pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
+pc : free_image_page kernel/power/snapshot.c:257 [inline]
+pc : free_image_page kernel/power/snapshot.c:253 [inline]
+pc : free_list_of_pages kernel/power/snapshot.c:274 [inline]
+pc : memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726
+lr : free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173
+sp : ffff800014ffbc50
+x29: ffff800014ffbc50 x28: f2ff000029a10070 
+x27: ffff800012d4c000 x26: f2ff000029a10008 
+x25: f3ff00002672c700 x24: ffff800012d4c000 
+x23: 00007fffffffffff x22: f2ff000029a10018 
+x21: 0000000000000001 x20: ffff800013b576d0 
+x19: f3ff00002672c700 x18: 0000000000000000 
+x17: 0000000000000000 x16: 0000000000000000 
+x15: 0000000000000000 x14: 0000000000000000 
+x13: 0000000000000000 x12: 0000000000000000 
+x11: 0000000000000000 x10: 0000000000000000 
+x9 : 0000000000000000 x8 : 0000000000000000 
+x7 : 0000000000000000 x6 : 00000000000001ff 
+x5 : 0000000000000000 x4 : 0000000000000000 
+x3 : ffff800013b576d0 x2 : fdff000026770000 
+x1 : 0000000000000001 x0 : 0200000026770000 
+Call trace:
+ free_image_page kernel/power/snapshot.c:257 [inline]
+ free_list_of_pages kernel/power/snapshot.c:274 [inline]
+ memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726
+ free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173
+ snapshot_release+0x74/0x90 kernel/power/user.c:120
+ __fput+0x78/0x230 fs/file_table.c:280
+ ____fput+0x10/0x20 fs/file_table.c:313
+ task_work_run+0x80/0x160 kernel/task_work.c:140
+ tracehook_notify_resume include/linux/tracehook.h:189 [inline]
+ do_notify_resume+0x20c/0x13e0 arch/arm64/kernel/signal.c:939
+ work_pending+0xc/0x3d4
+Code: cb000260 d34cfc00 97fcf6fe 35fffc20 (d4210000) 
+---[ end trace 9cab793efd001cad ]---
+----------------
+Code disassembly (best guess):
+   0:	cb000260 	sub	x0, x19, x0
+   4:	d34cfc00 	lsr	x0, x0, #12
+   8:	97fcf6fe 	bl	0xfffffffffff3dc00
+   c:	35fffc20 	cbnz	w0, 0xffffffffffffff90
+  10:	d4210000 	brk	#0x800 <-- trapping instruction
diff --git a/pkg/report/testdata/linux/decompile/arm64/1.in b/pkg/report/testdata/linux/decompile/arm64/1.in
new file mode 100644
index 000000000..3365cbc32
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm64/1.in
@@ -0,0 +1,49 @@
+Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP
+Modules linked in:
+CPU: 0 PID: 5594 Comm: syz-executor.1 Not tainted 5.14.0-rc3-syzkaller #0
+Hardware name: linux,dummy-virt (DT)
+pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--)
+pc : __raw_writeb arch/arm64/include/asm/io.h:27 [inline]
+pc : _outb include/asm-generic/io.h:501 [inline]
+pc : logic_outb+0x3c/0x114 lib/logic_pio.c:302
+lr : io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453
+sp : ffff80001bdb78f0
+x29: ffff80001bdb78f0 x28: ffff000010efe000 x27: ffff80001bdd9018
+x26: ffff80001bdd9000 x25: ffff80001bddb310 x24: 1ffff000037bb203
+x23: ffff000010efe600 x22: 0000000000000000 x21: 0000000000000002
+x20: 0000000000000002 x19: fffffbfffe800001 x18: 0000000000000000
+x17: 0000000000000000 x16: 0000000000000003 x15: ffff8000160853e0
+x14: 1ffff000037b6efc x13: 1ffff000037b6e7a x12: ffff7000037b6f27
+x11: 1ffff000037b6f26 x10: ffff7000037b6f26 x9 : dfff800000000000
+x8 : 0000000000000003 x7 : 0000000000000001 x6 : 0000000000000004
+x5 : ffff80001bdb7930 x4 : dfff800000000000 x3 : 0000000000000001
+x2 : 1ffff0000309aea7 x1 : fffffbfffe800000 x0 : 0000000000ffbffe
+Call trace:
+ _outb include/asm-generic/io.h:501 [inline]
+ logic_outb+0x3c/0x114 lib/logic_pio.c:302
+ io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453
+ serial_out drivers/tty/serial/8250/8250.h:120 [inline]
+ serial8250_set_THRI drivers/tty/serial/8250/8250.h:140 [inline]
+ __start_tx drivers/tty/serial/8250/8250_port.c:1561 [inline]
+ serial8250_start_tx+0x338/0x680 drivers/tty/serial/8250/8250_port.c:1660
+ __uart_start.isra.0+0x108/0x150 drivers/tty/serial/serial_core.c:127
+ uart_start+0xe0/0x210 drivers/tty/serial/serial_core.c:137
+ uart_flush_chars+0x10/0x20 drivers/tty/serial/serial_core.c:549
+ __receive_buf drivers/tty/n_tty.c:1581 [inline]
+ n_tty_receive_buf_common+0xa78/0x43bc drivers/tty/n_tty.c:1674
+ n_tty_receive_buf+0x14/0x20 drivers/tty/n_tty.c:1703
+ tiocsti drivers/tty/tty_io.c:2311 [inline]
+ tty_ioctl+0xf94/0x1a34 drivers/tty/tty_io.c:2719
+ vfs_ioctl fs/ioctl.c:51 [inline]
+ __do_sys_ioctl fs/ioctl.c:1069 [inline]
+ __se_sys_ioctl fs/ioctl.c:1055 [inline]
+ __arm64_sys_ioctl+0x120/0x190 fs/ioctl.c:1055
+ __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
+ invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52
+ el0_svc_common+0xcc/0x1f4 arch/arm64/kernel/syscall.c:145
+ do_el0_svc+0xa4/0xd0 arch/arm64/kernel/syscall.c:184
+ el0_svc+0x24/0x3c arch/arm64/kernel/entry-common.c:511
+ el0t_64_sync_handler+0x1a4/0x1ac arch/arm64/kernel/entry-common.c:527
+ el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:574
+Code: d2bfd001 f2df7fe1 f2ffffe1 8b010273 (39000274) 
+---[ end trace a5c31328c4dd2c04 ]---
diff --git a/pkg/report/testdata/linux/decompile/arm64/1.out b/pkg/report/testdata/linux/decompile/arm64/1.out
new file mode 100644
index 000000000..c07a4756b
--- /dev/null
+++ b/pkg/report/testdata/linux/decompile/arm64/1.out
@@ -0,0 +1,56 @@
+Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP
+Modules linked in:
+CPU: 0 PID: 5594 Comm: syz-executor.1 Not tainted 5.14.0-rc3-syzkaller #0
+Hardware name: linux,dummy-virt (DT)
+pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--)
+pc : __raw_writeb arch/arm64/include/asm/io.h:27 [inline]
+pc : _outb include/asm-generic/io.h:501 [inline]
+pc : logic_outb+0x3c/0x114 lib/logic_pio.c:302
+lr : io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453
+sp : ffff80001bdb78f0
+x29: ffff80001bdb78f0 x28: ffff000010efe000 x27: ffff80001bdd9018
+x26: ffff80001bdd9000 x25: ffff80001bddb310 x24: 1ffff000037bb203
+x23: ffff000010efe600 x22: 0000000000000000 x21: 0000000000000002
+x20: 0000000000000002 x19: fffffbfffe800001 x18: 0000000000000000
+x17: 0000000000000000 x16: 0000000000000003 x15: ffff8000160853e0
+x14: 1ffff000037b6efc x13: 1ffff000037b6e7a x12: ffff7000037b6f27
+x11: 1ffff000037b6f26 x10: ffff7000037b6f26 x9 : dfff800000000000
+x8 : 0000000000000003 x7 : 0000000000000001 x6 : 0000000000000004
+x5 : ffff80001bdb7930 x4 : dfff800000000000 x3 : 0000000000000001
+x2 : 1ffff0000309aea7 x1 : fffffbfffe800000 x0 : 0000000000ffbffe
+Call trace:
+ _outb include/asm-generic/io.h:501 [inline]
+ logic_outb+0x3c/0x114 lib/logic_pio.c:302
+ io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453
+ serial_out drivers/tty/serial/8250/8250.h:120 [inline]
+ serial8250_set_THRI drivers/tty/serial/8250/8250.h:140 [inline]
+ __start_tx drivers/tty/serial/8250/8250_port.c:1561 [inline]
+ serial8250_start_tx+0x338/0x680 drivers/tty/serial/8250/8250_port.c:1660
+ __uart_start.isra.0+0x108/0x150 drivers/tty/serial/serial_core.c:127
+ uart_start+0xe0/0x210 drivers/tty/serial/serial_core.c:137
+ uart_flush_chars+0x10/0x20 drivers/tty/serial/serial_core.c:549
+ __receive_buf drivers/tty/n_tty.c:1581 [inline]
+ n_tty_receive_buf_common+0xa78/0x43bc drivers/tty/n_tty.c:1674
+ n_tty_receive_buf+0x14/0x20 drivers/tty/n_tty.c:1703
+ tiocsti drivers/tty/tty_io.c:2311 [inline]
+ tty_ioctl+0xf94/0x1a34 drivers/tty/tty_io.c:2719
+ vfs_ioctl fs/ioctl.c:51 [inline]
+ __do_sys_ioctl fs/ioctl.c:1069 [inline]
+ __se_sys_ioctl fs/ioctl.c:1055 [inline]
+ __arm64_sys_ioctl+0x120/0x190 fs/ioctl.c:1055
+ __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
+ invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52
+ el0_svc_common+0xcc/0x1f4 arch/arm64/kernel/syscall.c:145
+ do_el0_svc+0xa4/0xd0 arch/arm64/kernel/syscall.c:184
+ el0_svc+0x24/0x3c arch/arm64/kernel/entry-common.c:511
+ el0t_64_sync_handler+0x1a4/0x1ac arch/arm64/kernel/entry-common.c:527
+ el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:574
+Code: d2bfd001 f2df7fe1 f2ffffe1 8b010273 (39000274) 
+---[ end trace a5c31328c4dd2c04 ]---
+----------------
+Code disassembly (best guess):
+   0:	d2bfd001 	mov	x1, #0xfe800000            	// #4269801472
+   4:	f2df7fe1 	movk	x1, #0xfbff, lsl #32
+   8:	f2ffffe1 	movk	x1, #0xffff, lsl #48
+   c:	8b010273 	add	x19, x19, x1
+  10:	39000274 	strb	w20, [x19] <-- trapping instruction