pkg/report: improve USB report titles

4 files changed, 427 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/report/422 b/pkg/report/testdata/linux/report/422
new file mode 100644
index 000000000..0d2cc1dd5
--- /dev/null
+++ b/pkg/report/testdata/linux/report/422
@@ -0,0 +1,175 @@
+TITLE: KASAN: use-after-free Read in tty_unregister_device
+
+[   54.689586][ T1737] ==================================================================
+[   54.697746][ T1737] BUG: KASAN: use-after-free in __mutex_lock+0xf23/0x1360
+[   54.704832][ T1737] Read of size 8 at addr ffff8881d6b6b458 by task kworker/1:4/1737
+[   54.712691][ T1737]
+[   54.715001][ T1737] CPU: 1 PID: 1737 Comm: kworker/1:4 Not tainted 5.3.0+ #0
+[   54.722165][ T1737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[   54.732206][ T1737] Workqueue: usb_hub_wq hub_event
+[   54.737215][ T1737] Call Trace:
+[   54.740484][ T1737]  dump_stack+0xca/0x13e
+[   54.744706][ T1737]  ? __mutex_lock+0xf23/0x1360
+[   54.749450][ T1737]  ? __mutex_lock+0xf23/0x1360
+[   54.754198][ T1737]  print_address_description+0x6a/0x32c
+[   54.759718][ T1737]  ? __mutex_lock+0xf23/0x1360
+[   54.764454][ T1737]  ? __mutex_lock+0xf23/0x1360
+[   54.769201][ T1737]  __kasan_report.cold+0x1a/0x33
+[   54.774121][ T1737]  ? __mutex_lock+0xf23/0x1360
+[   54.778870][ T1737]  kasan_report+0xe/0x12
+[   54.783094][ T1737]  __mutex_lock+0xf23/0x1360
+[   54.787674][ T1737]  ? find_held_lock+0x2d/0x110
+[   54.792415][ T1737]  ? device_del+0x9e/0xb10
+[   54.796805][ T1737]  ? mutex_trylock+0x2c0/0x2c0
+[   54.801547][ T1737]  ? lock_downgrade+0x6e0/0x6e0
+[   54.806384][ T1737]  ? refcount_sub_and_test_checked+0x130/0x1c0
+[   54.812532][ T1737]  ? rwlock_bug.part.0+0x90/0x90
+[   54.817446][ T1737]  ? do_raw_spin_unlock+0x50/0x220
+[   54.822543][ T1737]  ? class_create_release+0x20/0x20
+[   54.827715][ T1737]  ? _raw_spin_unlock+0x1f/0x30
+[   54.832542][ T1737]  ? klist_put+0x9c/0x170
+[   54.836844][ T1737]  ? device_del+0x9e/0xb10
+[   54.841235][ T1737]  device_del+0x9e/0xb10
+[   54.845451][ T1737]  ? refcount_dec_not_one+0x1e0/0x1e0
+[   54.850802][ T1737]  ? __device_links_no_driver+0x240/0x240
+[   54.856494][ T1737]  device_destroy+0x96/0xe0
+[   54.860973][ T1737]  ? root_device_unregister+0x80/0x80
+[   54.866322][ T1737]  ? hso_serial_common_create+0x3a3/0x710
+[   54.872016][ T1737]  tty_unregister_device+0x7e/0x1a0
+[   54.877188][ T1737]  hso_probe.cold+0xc8/0x121
+[   54.881762][ T1737]  usb_probe_interface+0x305/0x7a0
+[   54.886856][ T1737]  ? usb_probe_device+0x100/0x100
+[   54.891866][ T1737]  really_probe+0x281/0x6d0
+[   54.896352][ T1737]  driver_probe_device+0x101/0x1b0
+[   54.901436][ T1737]  __device_attach_driver+0x1c2/0x220
+[   54.906783][ T1737]  ? driver_allows_async_probing+0x160/0x160
+[   54.912746][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   54.917583][ T1737]  ? bus_rescan_devices+0x20/0x20
+[   54.922592][ T1737]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
+[   54.928385][ T1737]  ? lockdep_hardirqs_on+0x379/0x580
+[   54.933655][ T1737]  __device_attach+0x217/0x360
+[   54.938403][ T1737]  ? device_bind_driver+0xd0/0xd0
+[   54.943407][ T1737]  ? kobject_uevent_env+0x29e/0x1150
+[   54.948682][ T1737]  ? kobject_uevent_env+0x2a8/0x1150
+[   54.953947][ T1737]  bus_probe_device+0x1e4/0x290
+[   54.958771][ T1737]  ? blocking_notifier_call_chain+0x54/0xa0
+[   54.964646][ T1737]  device_add+0xae6/0x16f0
+[   54.969042][ T1737]  ? uevent_store+0x50/0x50
+[   54.973533][ T1737]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
+[   54.979312][ T1737]  usb_set_configuration+0xdf6/0x1670
+[   54.984660][ T1737]  generic_probe+0x9d/0xd5
+[   54.989051][ T1737]  usb_probe_device+0x99/0x100
+[   54.993791][ T1737]  ? usb_suspend+0x620/0x620
+[   54.998358][ T1737]  really_probe+0x281/0x6d0
+[   55.002835][ T1737]  driver_probe_device+0x101/0x1b0
+[   55.007923][ T1737]  __device_attach_driver+0x1c2/0x220
+[   55.013277][ T1737]  ? driver_allows_async_probing+0x160/0x160
+[   55.019229][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   55.024052][ T1737]  ? bus_rescan_devices+0x20/0x20
+[   55.029052][ T1737]  ? _raw_spin_unlock_irqrestore+0x3e/0x50
+[   55.034843][ T1737]  ? lockdep_hardirqs_on+0x379/0x580
+[   55.040101][ T1737]  __device_attach+0x217/0x360
+[   55.044841][ T1737]  ? device_bind_driver+0xd0/0xd0
+[   55.050361][ T1737]  ? kobject_uevent_env+0x29e/0x1150
+[   55.055617][ T1737]  ? kobject_uevent_env+0x2a8/0x1150
+[   55.060889][ T1737]  bus_probe_device+0x1e4/0x290
+[   55.065721][ T1737]  ? blocking_notifier_call_chain+0x54/0xa0
+[   55.071591][ T1737]  device_add+0xae6/0x16f0
+[   55.075986][ T1737]  ? uevent_store+0x50/0x50
+[   55.080464][ T1737]  usb_new_device.cold+0x6a4/0xe79
+[   55.085555][ T1737]  hub_event+0x1b5c/0x3640
+[   55.089948][ T1737]  ? hub_port_debounce+0x260/0x260
+[   55.095053][ T1737]  ? rcu_read_lock_sched_held+0x9c/0xd0
+[   55.100583][ T1737]  ? rcu_read_lock_bh_held+0xb0/0xb0
+[   55.105848][ T1737]  process_one_work+0x92b/0x1530
+[   55.110762][ T1737]  ? pwq_dec_nr_in_flight+0x310/0x310
+[   55.116117][ T1737]  worker_thread+0x96/0xe20
+[   55.120618][ T1737]  ? process_one_work+0x1530/0x1530
+[   55.125801][ T1737]  kthread+0x318/0x420
+[   55.129852][ T1737]  ? kthread_create_on_node+0xf0/0xf0
+[   55.135202][ T1737]  ret_from_fork+0x24/0x30
+[   55.139594][ T1737]
+[   55.141905][ T1737] Allocated by task 22:
+[   55.146057][ T1737]  save_stack+0x1b/0x80
+[   55.150198][ T1737]  __kasan_kmalloc.constprop.0+0xbf/0xd0
+[   55.155807][ T1737]  tty_register_device_attr+0x1b6/0x6f0
+[   55.161329][ T1737]  hso_serial_common_create+0x113/0x710
+[   55.166850][ T1737]  hso_probe+0xc93/0x1a46
+[   55.171158][ T1737]  usb_probe_interface+0x305/0x7a0
+[   55.176244][ T1737]  really_probe+0x281/0x6d0
+[   55.180721][ T1737]  driver_probe_device+0x101/0x1b0
+[   55.185811][ T1737]  __device_attach_driver+0x1c2/0x220
+[   55.191162][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   55.196022][ T1737]  __device_attach+0x217/0x360
+[   55.200760][ T1737]  bus_probe_device+0x1e4/0x290
+[   55.205584][ T1737]  device_add+0xae6/0x16f0
+[   55.209977][ T1737]  usb_set_configuration+0xdf6/0x1670
+[   55.215333][ T1737]  generic_probe+0x9d/0xd5
+[   55.219733][ T1737]  usb_probe_device+0x99/0x100
+[   55.224475][ T1737]  really_probe+0x281/0x6d0
+[   55.228974][ T1737]  driver_probe_device+0x101/0x1b0
+[   55.234072][ T1737]  __device_attach_driver+0x1c2/0x220
+[   55.239421][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   55.244245][ T1737]  __device_attach+0x217/0x360
+[   55.248983][ T1737]  bus_probe_device+0x1e4/0x290
+[   55.253808][ T1737]  device_add+0xae6/0x16f0
+[   55.258197][ T1737]  usb_new_device.cold+0x6a4/0xe79
+[   55.263290][ T1737]  hub_event+0x1b5c/0x3640
+[   55.267698][ T1737]  process_one_work+0x92b/0x1530
+[   55.272629][ T1737]  worker_thread+0x96/0xe20
+[   55.277109][ T1737]  kthread+0x318/0x420
+[   55.281218][ T1737]  ret_from_fork+0x24/0x30
+[   55.285606][ T1737]
+[   55.287911][ T1737] Freed by task 22:
+[   55.291707][ T1737]  save_stack+0x1b/0x80
+[   55.295884][ T1737]  __kasan_slab_free+0x130/0x180
+[   55.300799][ T1737]  kfree+0xe4/0x2f0
+[   55.304585][ T1737]  device_release+0x71/0x200
+[   55.309151][ T1737]  kobject_put+0x171/0x280
+[   55.313541][ T1737]  device_destroy+0x9e/0xe0
+[   55.318023][ T1737]  tty_unregister_device+0x7e/0x1a0
+[   55.323197][ T1737]  hso_probe.cold+0xc8/0x121
+[   55.327767][ T1737]  usb_probe_interface+0x305/0x7a0
+[   55.332852][ T1737]  really_probe+0x281/0x6d0
+[   55.337331][ T1737]  driver_probe_device+0x101/0x1b0
+[   55.342423][ T1737]  __device_attach_driver+0x1c2/0x220
+[   55.347787][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   55.352623][ T1737]  __device_attach+0x217/0x360
+[   55.357362][ T1737]  bus_probe_device+0x1e4/0x290
+[   55.362188][ T1737]  device_add+0xae6/0x16f0
+[   55.366593][ T1737]  usb_set_configuration+0xdf6/0x1670
+[   55.371944][ T1737]  generic_probe+0x9d/0xd5
+[   55.376343][ T1737]  usb_probe_device+0x99/0x100
+[   55.381094][ T1737]  really_probe+0x281/0x6d0
+[   55.385584][ T1737]  driver_probe_device+0x101/0x1b0
+[   55.390675][ T1737]  __device_attach_driver+0x1c2/0x220
+[   55.396029][ T1737]  bus_for_each_drv+0x162/0x1e0
+[   55.400870][ T1737]  __device_attach+0x217/0x360
+[   55.405606][ T1737]  bus_probe_device+0x1e4/0x290
+[   55.410438][ T1737]  device_add+0xae6/0x16f0
+[   55.414844][ T1737]  usb_new_device.cold+0x6a4/0xe79
+[   55.419938][ T1737]  hub_event+0x1b5c/0x3640
+[   55.424328][ T1737]  process_one_work+0x92b/0x1530
+[   55.429246][ T1737]  worker_thread+0x96/0xe20
+[   55.433723][ T1737]  kthread+0x318/0x420
+[   55.437777][ T1737]  ret_from_fork+0x24/0x30
+[   55.442176][ T1737]
+[   55.444488][ T1737] The buggy address belongs to the object at ffff8881d6b6b300
+[   55.444488][ T1737]  which belongs to the cache kmalloc-2k of size 2048
+[   55.458526][ T1737] The buggy address is located 344 bytes inside of
+[   55.458526][ T1737]  2048-byte region [ffff8881d6b6b300, ffff8881d6b6bb00)
+[   55.471967][ T1737] The buggy address belongs to the page:
+[   55.477583][ T1737] page:ffffea00075ada00 refcount:1 mapcount:0 mapping:ffff8881da00c000 index:0x0 compound_mapcount: 0
+[   55.488512][ T1737] flags: 0x200000000010200(slab|head)
+[   55.493888][ T1737] raw: 0200000000010200 0000000000000000 0000000b00000001 ffff8881da00c000
+[   55.502449][ T1737] raw: 0000000000000000 00000000800f000f 00000001ffffffff 0000000000000000
+[   55.511026][ T1737] page dumped because: kasan: bad access detected
+[   55.517411][ T1737]
+[   55.519718][ T1737] Memory state around the buggy address:
+[   55.525344][ T1737]  ffff8881d6b6b300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[   55.533390][ T1737]  ffff8881d6b6b380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[   55.541433][ T1737] >ffff8881d6b6b400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[   55.549479][ T1737]                                                     ^
+[   55.556404][ T1737]  ffff8881d6b6b480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[   55.564452][ T1737]  ffff8881d6b6b500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[   55.572485][ T1737] ==================================================================
diff --git a/pkg/report/testdata/linux/report/423 b/pkg/report/testdata/linux/report/423
new file mode 100644
index 000000000..a14068d45
--- /dev/null
+++ b/pkg/report/testdata/linux/report/423
@@ -0,0 +1,97 @@
+TITLE: KASAN: use-after-free Read in mcba_usb_disconnect
+
+[  723.789406][  T102] ==================================================================
+[  723.790974][  T102] BUG: KASAN: use-after-free in __lock_acquire+0x3377/0x3eb0
+[  723.792263][  T102] Read of size 8 at addr ffff88803b8d8f48 by task kworker/0:2/102
+[  723.793777][  T102]
+[  723.794247][  T102] CPU: 0 PID: 102 Comm: kworker/0:2 Not tainted 5.3.0+ #296
+[  723.795572][  T102] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
+[  723.797369][  T102] Workqueue: usb_hub_wq hub_event
+[  723.798502][  T102] Call Trace:
+[  723.799161][  T102]  dump_stack+0xca/0x13e
+[  723.800048][  T102]  ? __lock_acquire+0x3377/0x3eb0
+[  723.801210][  T102]  ? __lock_acquire+0x3377/0x3eb0
+[  723.802097][  T102]  print_address_description+0x6a/0x32c
+[  723.803112][  T102]  ? __lock_acquire+0x3377/0x3eb0
+[  723.804061][  T102]  ? __lock_acquire+0x3377/0x3eb0
+[  723.805027][  T102]  __kasan_report.cold+0x1a/0x33
+[  723.805958][  T102]  ? __lock_acquire+0x3377/0x3eb0
+[  723.806908][  T102]  kasan_report+0xe/0x12
+[  723.807638][  T102]  __lock_acquire+0x3377/0x3eb0
+[  723.808527][  T102]  ? mark_held_locks+0x9f/0xe0
+[  723.809449][  T102]  ? lockdep_hardirqs_on+0x379/0x580
+[  723.810520][  T102]  ? quarantine_put+0xb2/0x150
+[  723.811487][  T102]  ? mark_held_locks+0xe0/0xe0
+[  723.812419][  T102]  lock_acquire+0x127/0x320
+[  723.813276][  T102]  ? usb_kill_anchored_urbs+0x1e/0x110
+[  723.814303][  T102]  ? kobject_put+0x18c/0x280
+[  723.815153][  T102]  _raw_spin_lock_irq+0x2d/0x40
+[  723.816075][  T102]  ? usb_kill_anchored_urbs+0x1e/0x110
+[  723.817142][  T102]  usb_kill_anchored_urbs+0x1e/0x110
+[  723.818155][  T102]  mcba_usb_disconnect+0xd6/0xe4
+[  723.819116][  T102]  usb_unbind_interface+0x1bd/0x8a0
+[  723.820138][  T102]  ? usb_autoresume_device+0x60/0x60
+[  723.821222][  T102]  device_release_driver_internal+0x42f/0x500
+[  723.822362][  T102]  bus_remove_device+0x2dc/0x4a0
+[  723.823285][  T102]  device_del+0x420/0xb10
+[  723.824082][  T102]  ? __device_links_no_driver+0x240/0x240
+[  723.825190][  T102]  ? usb_remove_ep_devs+0x3e/0x80
+[  723.826128][  T102]  ? remove_intf_ep_devs+0x13f/0x1d0
+[  723.827128][  T102]  usb_disable_device+0x211/0x690
+[  723.828095][  T102]  usb_disconnect+0x284/0x8d0
+[  723.829025][  T102]  hub_event+0x1454/0x3640
+[  723.829820][  T102]  ? find_held_lock+0x2d/0x110
+[  723.830985][  T102]  ? mark_held_locks+0xe0/0xe0
+[  723.832271][  T102]  ? hub_port_debounce+0x260/0x260
+[  723.833628][  T102]  ? rcu_read_lock_sched_held+0x9c/0xd0
+[  723.835108][  T102]  ? rcu_read_lock_bh_held+0xb0/0xb0
+[  723.836502][  T102]  process_one_work+0x92b/0x1530
+[  723.837830][  T102]  ? pwq_dec_nr_in_flight+0x310/0x310
+[  723.839199][  T102]  ? do_raw_spin_lock+0x11a/0x280
+[  723.840346][  T102]  worker_thread+0x96/0xe20
+[  723.841423][  T102]  ? process_one_work+0x1530/0x1530
+[  723.842603][  T102]  kthread+0x318/0x420
+[  723.843538][  T102]  ? kthread_create_on_node+0xf0/0xf0
+[  723.844787][  T102]  ret_from_fork+0x24/0x30
+[  723.845813][  T102]
+[  723.846365][  T102] Allocated by task 15859:
+[  723.847393][  T102]  save_stack+0x1b/0x80
+[  723.848366][  T102]  __kasan_kmalloc.constprop.0+0xbf/0xd0
+[  723.849722][  T102]  kmem_cache_alloc+0xd6/0x2d0
+[  723.850953][  T102]  getname_flags+0xd2/0x5b0
+[  723.851992][  T102]  user_path_at_empty+0x2a/0x50
+[  723.853144][  T102]  vfs_statx+0x113/0x1e0
+[  723.854137][  T102]  __do_sys_newstat+0x96/0x120
+[  723.855225][  T102]  do_syscall_64+0xb7/0x580
+[  723.855986][  T102]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
+[  723.856973][  T102]
+[  723.857422][  T102] Freed by task 15859:
+[  723.858353][  T102]  save_stack+0x1b/0x80
+[  723.859313][  T102]  __kasan_slab_free+0x130/0x180
+[  723.860452][  T102]  kmem_cache_free+0xb9/0x380
+[  723.861601][  T102]  putname+0xe1/0x120
+[  723.862539][  T102]  filename_lookup+0x28f/0x3f0
+[  723.863628][  T102]  vfs_statx+0x113/0x1e0
+[  723.864560][  T102]  __do_sys_newstat+0x96/0x120
+[  723.865437][  T102]  do_syscall_64+0xb7/0x580
+[  723.866198][  T102]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
+[  723.867164][  T102]
+[  723.867553][  T102] The buggy address belongs to the object at ffff88803b8d8000
+[  723.867553][  T102]  which belongs to the cache names_cache of size 4096
+[  723.869885][  T102] The buggy address is located 3912 bytes inside of
+[  723.869885][  T102]  4096-byte region [ffff88803b8d8000, ffff88803b8d9000)
+[  723.872392][  T102] The buggy address belongs to the page:
+[  723.873386][  T102] page:ffffea0000ee3600 refcount:1 mapcount:0 mapping:ffff88806c515900 index:0x0 compound_mapcount: 0
+[  723.875262][  T102] flags: 0x100000000010200(slab|head)
+[  723.876181][  T102] raw: 0100000000010200 dead000000000100 dead000000000122 ffff88806c515900
+[  723.877662][  T102] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000
+[  723.879114][  T102] page dumped because: kasan: bad access detected
+[  723.880269][  T102]
+[  723.880699][  T102] Memory state around the buggy address:
+[  723.881688][  T102]  ffff88803b8d8e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  723.883049][  T102]  ffff88803b8d8e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  723.884598][  T102] >ffff88803b8d8f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  723.886061][  T102]                                               ^
+[  723.887248][  T102]  ffff88803b8d8f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  723.888739][  T102]  ffff88803b8d9000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+[  723.890329][  T102] ==================================================================
diff --git a/pkg/report/testdata/linux/report/424 b/pkg/report/testdata/linux/report/424
new file mode 100644
index 000000000..897e84cf9
--- /dev/null
+++ b/pkg/report/testdata/linux/report/424
@@ -0,0 +1,91 @@
+TITLE: KASAN: use-after-free Read in chaoskey_disconnect
+
+[  744.592276][ T3173] ==================================================================
+[  744.593789][ T3173] BUG: KASAN: use-after-free in refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.595200][ T3173] Read of size 4 at addr ffff88805b8f1820 by task kworker/1:3/3173
+[  744.596644][ T3173]
+[  744.597052][ T3173] CPU: 1 PID: 3173 Comm: kworker/1:3 Not tainted 5.3.0+ #296
+[  744.598324][ T3173] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
+[  744.600029][ T3173] Workqueue: usb_hub_wq hub_event
+[  744.600890][ T3173] Call Trace:
+[  744.601452][ T3173]  dump_stack+0xca/0x13e
+[  744.602183][ T3173]  ? refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.603262][ T3173]  ? refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.604902][ T3173]  print_address_description+0x6a/0x32c
+[  744.606397][ T3173]  ? refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.608297][ T3173]  ? refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.610301][ T3173]  __kasan_report.cold+0x1a/0x33
+[  744.611499][ T3173]  ? refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.612670][ T3173]  kasan_report+0xe/0x12
+[  744.613400][ T3173]  check_memory_region+0x128/0x190
+[  744.614340][ T3173]  refcount_inc_not_zero_checked+0x72/0x1e0
+[  744.615279][ T3173]  ? refcount_dec_and_mutex_lock+0x80/0x80
+[  744.616362][ T3173]  ? rcu_read_lock_sched_held+0x9c/0xd0
+[  744.617766][ T3173]  ? rcu_read_lock_bh_held+0xb0/0xb0
+[  744.619091][ T3173]  refcount_inc_checked+0x12/0x60
+[  744.620362][ T3173]  kthread_stop+0x6c/0x600
+[  744.621363][ T3173]  hwrng_unregister+0x190/0x210
+[  744.622111][ T3173]  chaoskey_disconnect+0x1b2/0x200
+[  744.622919][ T3173]  usb_unbind_interface+0x1bd/0x8a0
+[  744.623650][ T3173]  ? usb_autoresume_device+0x60/0x60
+[  744.624395][ T3173]  device_release_driver_internal+0x42f/0x500
+[  744.625254][ T3173]  bus_remove_device+0x2dc/0x4a0
+[  744.625979][ T3173]  device_del+0x420/0xb10
+[  744.626624][ T3173]  ? __device_links_no_driver+0x240/0x240
+[  744.627430][ T3173]  ? usb_remove_ep_devs+0x3e/0x80
+[  744.628144][ T3173]  ? remove_intf_ep_devs+0x13f/0x1d0
+[  744.628872][ T3173]  usb_disable_device+0x211/0x690
+[  744.629575][ T3173]  usb_disconnect+0x284/0x8d0
+[  744.630221][ T3173]  hub_event+0x1454/0x3640
+[  744.630862][ T3173]  ? find_held_lock+0x2d/0x110
+[  744.631538][ T3173]  ? mark_held_locks+0xe0/0xe0
+[  744.632216][ T3173]  ? hub_port_debounce+0x260/0x260
+[  744.632952][ T3173]  ? rcu_read_lock_sched_held+0x9c/0xd0
+[  744.633728][ T3173]  ? rcu_read_lock_bh_held+0xb0/0xb0
+[  744.634492][ T3173]  process_one_work+0x92b/0x1530
+[  744.635201][ T3173]  ? pwq_dec_nr_in_flight+0x310/0x310
+[  744.636011][ T3173]  ? do_raw_spin_lock+0x11a/0x280
+[  744.636939][ T3173]  worker_thread+0x7ab/0xe20
+[  744.637678][ T3173]  ? process_one_work+0x1530/0x1530
+[  744.638485][ T3173]  kthread+0x318/0x420
+[  744.639125][ T3173]  ? kthread_create_on_node+0xf0/0xf0
+[  744.639979][ T3173]  ret_from_fork+0x24/0x30
+[  744.640583][ T3173]
+[  744.640979][ T3173] Allocated by task 2:
+[  744.641607][ T3173]  save_stack+0x1b/0x80
+[  744.642312][ T3173]  __kasan_kmalloc.constprop.0+0xbf/0xd0
+[  744.643170][ T3173]  kmem_cache_alloc_node+0xdc/0x310
+[  744.643950][ T3173]  copy_process+0x41ad/0x6410
+[  744.644704][ T3173]  _do_fork+0x129/0xec0
+[  744.645338][ T3173]  kernel_thread+0xaa/0xe0
+[  744.646005][ T3173]  kthreadd+0x4a2/0x680
+[  744.646735][ T3173]  ret_from_fork+0x24/0x30
+[  744.647364][ T3173]
+[  744.647767][ T3173] Freed by task 16:
+[  744.648407][ T3173]  save_stack+0x1b/0x80
+[  744.649181][ T3173]  __kasan_slab_free+0x130/0x180
+[  744.650073][ T3173]  kmem_cache_free+0xb9/0x380
+[  744.650744][ T3173]  __put_task_struct+0x1e2/0x4a0
+[  744.651540][ T3173]  delayed_put_task_struct+0x1b4/0x2c0
+[  744.652409][ T3173]  rcu_core+0x630/0x1ca0
+[  744.653028][ T3173]  __do_softirq+0x221/0x912
+[  744.653886][ T3173]
+[  744.654366][ T3173] The buggy address belongs to the object at ffff88805b8f1800
+[  744.654366][ T3173]  which belongs to the cache task_struct of size 5888
+[  744.657365][ T3173] The buggy address is located 32 bytes inside of
+[  744.657365][ T3173]  5888-byte region [ffff88805b8f1800, ffff88805b8f2f00)
+[  744.659960][ T3173] The buggy address belongs to the page:
+[  744.660975][ T3173] page:ffffea00016e3c00 refcount:1 mapcount:0 mapping:ffff88806c50e000 index:0x0 compound_mapcount: 0
+[  744.662922][ T3173] flags: 0x100000000010200(slab|head)
+[  744.663844][ T3173] raw: 0100000000010200 dead000000000100 dead000000000122 ffff88806c50e000
+[  744.665448][ T3173] raw: 0000000000000000 0000000000050005 00000001ffffffff 0000000000000000
+[  744.667066][ T3173] page dumped because: kasan: bad access detected
+[  744.668216][ T3173]
+[  744.668632][ T3173] Memory state around the buggy address:
+[  744.669623][ T3173]  ffff88805b8f1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+[  744.671167][ T3173]  ffff88805b8f1780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
+[  744.672588][ T3173] >ffff88805b8f1800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  744.674006][ T3173]                                ^
+[  744.674964][ T3173]  ffff88805b8f1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  744.676699][ T3173]  ffff88805b8f1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
+[  744.678359][ T3173] ==================================================================
diff --git a/pkg/report/testdata/linux/report/425 b/pkg/report/testdata/linux/report/425
new file mode 100644
index 000000000..9b862dd39
--- /dev/null
+++ b/pkg/report/testdata/linux/report/425
@@ -0,0 +1,64 @@
+TITLE: WARNING in pvr2_i2c_core_done
+
+[  274.845466][  T107] ------------[ cut here ]------------
+[  274.846771][  T107] sysfs group 'power' not found for kobject 'i2c-0'
+[  274.848200][  T107] WARNING: CPU: 0 PID: 107 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0
+[  274.850359][  T107] Kernel panic - not syncing: panic_on_warn set ...
+[  274.852042][  T107] CPU: 0 PID: 107 Comm: pvrusb2-context Not tainted 5.3.0+ #296
+[  274.853827][  T107] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
+[  274.856018][  T107] Call Trace:
+[  274.856795][  T107]  dump_stack+0xca/0x13e
+[  274.857524][  T107]  ? sysfs_remove_group+0x70/0x1b0
+[  274.858399][  T107]  panic+0x2a3/0x6da
+[  274.859055][  T107]  ? add_taint.cold+0x16/0x16
+[  274.859904][  T107]  ? __probe_kernel_read+0x188/0x1d0
+[  274.860804][  T107]  ? __warn.cold+0x5/0x4a
+[  274.861530][  T107]  ? __warn+0xe3/0x1e0
+[  274.862212][  T107]  ? sysfs_remove_group+0x155/0x1b0
+[  274.863299][  T107]  __warn.cold+0x20/0x4a
+[  274.863952][ T3185] usb 8-1: Invalid ep0 maxpacket: 512
+[  274.864037][  T107]  ? sysfs_remove_group+0x155/0x1b0
+[  274.865995][  T107]  report_bug+0x262/0x2a0
+[  274.866727][  T107]  do_error_trap+0x12b/0x1e0
+[  274.867497][  T107]  ? sysfs_remove_group+0x155/0x1b0
+[  274.868382][  T107]  do_invalid_op+0x32/0x40
+[  274.869130][  T107]  ? sysfs_remove_group+0x155/0x1b0
+[  274.870123][  T107]  invalid_op+0x23/0x30
+[  274.871036][  T107] RIP: 0010:sysfs_remove_group+0x155/0x1b0
+[  274.872188][  T107] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 a0 d0 d0 85 e8 d0 9a 8a ff <0f> 0b eb 95 e8 f2 c7 db ff e9 d2 fe ff ff 48 89 df e8 e5 c7 db ff
+[  274.875503][  T107] RSP: 0018:ffff888068157c40 EFLAGS: 00010282
+[  274.876694][  T107] RAX: 0000000000000000 RBX: ffffffff85f30ee0 RCX: 0000000000000000
+[  274.878439][  T107] RDX: 0000000000000000 RSI: ffffffff8128d9ad RDI: ffffed100d02af7a
+[  274.879815][  T107] RBP: 0000000000000000 R08: ffff888068b96000 R09: ffffed100d943ee7
+[  274.881155][  T107] R10: ffffed100d943ee6 R11: ffff88806ca1f737 R12: ffff888048704338
+[  274.882520][  T107] R13: ffffffff85f31480 R14: ffff888048704900 R15: ffff888068b96000
+[  274.884117][  T107]  ? vprintk_func+0x7d/0x113
+[  274.885246][  T107]  dpm_sysfs_remove+0x97/0xb0
+[  274.886360][  T107]  device_del+0x12a/0xb10
+[  274.887409][  T107]  ? __pm_runtime_disable+0x148/0x3d0
+[  274.888691][  T107]  ? __device_links_no_driver+0x240/0x240
+[  274.890013][  T107]  ? pm_runtime_barrier+0x260/0x260
+[  274.891249][  T107]  ? lockdep_init_map+0x1b0/0x5e0
+[  274.892466][  T107]  ? lockdep_init_map+0x1b0/0x5e0
+[  274.893684][  T107]  device_unregister+0x11/0x30
+[  274.894165][ T3109] usbhid 3-1:0.0: can't add hid device: -71
+[  274.894843][  T107]  i2c_del_adapter+0x42b/0x590
+[  274.894868][  T107]  ? del_timer_sync+0x11e/0x130
+[  274.896739][ T3109] usbhid: probe of 3-1:0.0 failed with error -71
+[  274.897766][  T107]  pvr2_i2c_core_done+0x69/0xb6
+[  274.897791][  T107]  pvr2_hdw_destroy+0x179/0x370
+[  274.902671][  T107]  pvr2_context_destroy+0x84/0x230
+[  274.903544][  T107]  pvr2_context_thread_func+0x657/0x860
+[  274.904501][  T107]  ? lock_acquire+0x127/0x320
+[  274.905283][  T107]  ? pvr2_context_destroy+0x230/0x230
+[  274.906178][  T107]  ? finish_wait+0x260/0x260
+[  274.907068][  T107]  ? lockdep_hardirqs_on+0x379/0x580
+[  274.908371][  T107]  ? __kthread_parkme+0x10a/0x1c0
+[  274.909556][  T107]  ? pvr2_context_destroy+0x230/0x230
+[  274.910853][  T107]  kthread+0x318/0x420
+[  274.911842][  T107]  ? kthread_create_on_node+0xf0/0xf0
+[  274.913116][  T107]  ret_from_fork+0x24/0x30
+[  274.914738][  T107] Dumping ftrace buffer:
+[  274.915783][  T107]    (ftrace buffer empty)
+[  274.916544][  T107] Kernel Offset: disabled
+[  274.917280][  T107] Rebooting in 1 seconds..