Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported |
---|---|---|---|---|---|---|
KASAN: slab-out-of-bounds Read in build_audio_procunit usb sound | C | 6 | 1837d | 1846d |
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KASAN: slab-out-of-bounds Read in parse_term_proc_unit | 1 (2) | 2019/10/23 05:07 |
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz ================================================================== BUG: KASAN: slab-out-of-bounds in uac_processing_unit_iProcessing include/uapi/linux/usb/audio.h:429 [inline] BUG: KASAN: slab-out-of-bounds in parse_term_proc_unit+0x57a/0x5e0 sound/usb/mixer.c:896 Read of size 1 at addr ffff8881d52c9abc by task kworker/1:2/83 CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 print_address_description.constprop.0+0x36/0x50 mm/kasan/report.c:374 __kasan_report.cold+0x1a/0x33 mm/kasan/report.c:506 kasan_report+0xe/0x20 mm/kasan/common.c:634 uac_processing_unit_iProcessing include/uapi/linux/usb/audio.h:429 [inline] parse_term_proc_unit+0x57a/0x5e0 sound/usb/mixer.c:896 __check_input_term+0xc32/0x13f0 sound/usb/mixer.c:984 parse_audio_feature_unit sound/usb/mixer.c:1875 [inline] parse_audio_unit+0x101d/0x36f0 sound/usb/mixer.c:2753 snd_usb_mixer_controls+0x715/0xb90 sound/usb/mixer.c:3095 snd_usb_create_mixer+0x2b5/0x1890 sound/usb/mixer.c:3445 usb_audio_probe+0xc76/0x2010 sound/usb/card.c:653 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x104/0x210 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490 device_add+0xae6/0x16f0 drivers/base/core.c:2201 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x104/0x210 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:430 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:490 device_add+0xae6/0x16f0 drivers/base/core.c:2201 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536 hub_port_connect drivers/usb/core/hub.c:5183 [inline] hub_port_connect_change drivers/usb/core/hub.c:5323 [inline] port_event drivers/usb/core/hub.c:5469 [inline] hub_event+0x1dd0/0x37e0 drivers/usb/core/hub.c:5551 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Allocated by task 83: save_stack+0x1b/0x80 mm/kasan/common.c:69 set_track mm/kasan/common.c:77 [inline] __kasan_kmalloc mm/kasan/common.c:510 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:483 kmalloc include/linux/slab.h:561 [inline] usb_get_configuration+0x314/0x3050 drivers/usb/core/config.c:857 usb_enumerate_device drivers/usb/core/hub.c:2369 [inline] usb_new_device+0xd3/0x160 drivers/usb/core/hub.c:2505 hub_port_connect drivers/usb/core/hub.c:5183 [inline] hub_port_connect_change drivers/usb/core/hub.c:5323 [inline] port_event drivers/usb/core/hub.c:5469 [inline] hub_event+0x1dd0/0x37e0 drivers/usb/core/hub.c:5551 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Freed by task 102: save_stack+0x1b/0x80 mm/kasan/common.c:69 set_track mm/kasan/common.c:77 [inline] kasan_set_free_info mm/kasan/common.c:332 [inline] __kasan_slab_free+0x130/0x180 mm/kasan/common.c:471 slab_free_hook mm/slub.c:1424 [inline] slab_free_freelist_hook mm/slub.c:1475 [inline] slab_free mm/slub.c:3018 [inline] kfree+0xe4/0x320 mm/slub.c:3967 urb_destroy drivers/usb/core/urb.c:26 [inline] kref_put include/linux/kref.h:65 [inline] usb_free_urb.part.0+0x7a/0xc0 drivers/usb/core/urb.c:95 usb_free_urb+0x1b/0x30 drivers/usb/core/urb.c:94 usb_start_wait_urb+0x1e5/0x2b0 drivers/usb/core/message.c:79 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 set_port_feature+0x69/0x90 drivers/usb/core/hub.c:428 hub_suspend+0x769/0x910 drivers/usb/core/hub.c:3710 usb_suspend_interface drivers/usb/core/driver.c:1203 [inline] usb_suspend_both+0x260/0x7b0 drivers/usb/core/driver.c:1308 usb_runtime_suspend+0x46/0x120 drivers/usb/core/driver.c:1846 __rpm_callback+0x27e/0x3c0 drivers/base/power/runtime.c:357 rpm_callback+0x18f/0x230 drivers/base/power/runtime.c:487 rpm_suspend+0x37a/0x1300 drivers/base/power/runtime.c:629 __pm_runtime_suspend+0xbb/0x150 drivers/base/power/runtime.c:1048 pm_runtime_autosuspend include/linux/pm_runtime.h:196 [inline] usb_runtime_idle+0x44/0x60 drivers/usb/core/driver.c:1883 __rpm_callback+0x27e/0x3c0 drivers/base/power/runtime.c:357 rpm_idle+0x200/0x8f0 drivers/base/power/runtime.c:449 pm_runtime_work+0x13e/0x180 drivers/base/power/runtime.c:907 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff8881d52c9a00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 188 bytes inside of 192-byte region [ffff8881d52c9a00, ffff8881d52c9ac0) The buggy address belongs to the page: page:ffffea000754b240 refcount:1 mapcount:0 mapping:ffff8881da002a00 index:0x0 flags: 0x200000000000200(slab) raw: 0200000000000200 0000000000000000 0000000100000001 ffff8881da002a00 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881d52c9980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8881d52c9a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8881d52c9a80: 00 00 00 00 03 fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881d52c9b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8881d52c9b80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/10/28 04:04 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | 25bb509e | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/23 18:53 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | b602d64b | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/22 17:39 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | 4ee855e7 | .config | console log | report | syz | C | ci2-upstream-usb |