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[PATCH 4.19 000/125] 4.19.84-stable review | 144 (144) | 2019/11/18 14:33 |
[PATCH 5.3 000/193] 5.3.11-stable review | 200 (200) | 2019/11/12 18:26 |
KASAN: slab-out-of-bounds Read in build_audio_procunit | 3 (4) | 2019/10/28 14:42 |
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_extension_unit_iExtension include/uapi/linux/usb/audio.h:483 [inline] BUG: KASAN: slab-out-of-bounds in build_audio_procunit+0xeab/0x13f0 sound/usb/mixer.c:2434 Read of size 1 at addr ffff8881d58a6549 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_extension_unit_iExtension include/uapi/linux/usb/audio.h:483 [inline] build_audio_procunit+0xeab/0x13f0 sound/usb/mixer.c:2434 parse_audio_extension_unit sound/usb/mixer.c:2483 [inline] parse_audio_unit+0x1812/0x36f0 sound/usb/mixer.c:2761 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 1: 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 scsi_probe_and_add_lun+0x2815/0x2cd0 drivers/scsi/scsi_scan.c:1166 __scsi_scan_target+0x273/0xc30 drivers/scsi/scsi_scan.c:1562 scsi_scan_channel.part.0+0x126/0x1a0 drivers/scsi/scsi_scan.c:1650 scsi_scan_channel drivers/scsi/scsi_scan.c:1677 [inline] scsi_scan_host_selected+0x2bb/0x3f0 drivers/scsi/scsi_scan.c:1679 do_scsi_scan_host drivers/scsi/scsi_scan.c:1817 [inline] do_scsi_scan_host+0x1e8/0x260 drivers/scsi/scsi_scan.c:1807 scsi_scan_host drivers/scsi/scsi_scan.c:1847 [inline] scsi_scan_host+0x37c/0x440 drivers/scsi/scsi_scan.c:1835 virtscsi_probe+0x9b7/0xbb5 drivers/scsi/virtio_scsi.c:905 virtio_dev_probe+0x463/0x710 drivers/virtio/virtio.c:248 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x104/0x210 drivers/base/dd.c:721 device_driver_attach+0x108/0x140 drivers/base/dd.c:995 __driver_attach+0xda/0x240 drivers/base/dd.c:1072 bus_for_each_dev+0x14b/0x1d0 drivers/base/bus.c:304 bus_add_driver+0x457/0x5a0 drivers/base/bus.c:621 driver_register+0x1c4/0x330 drivers/base/driver.c:170 __write_once_size include/linux/compiler.h:226 [inline] INIT_LIST_HEAD include/linux/list.h:28 [inline] init+0xa1/0x115 drivers/char/virtio_console.c:2251 do_one_initcall+0xf0/0x614 init/main.c:938 do_initcall_level init/main.c:1006 [inline] do_initcalls init/main.c:1014 [inline] do_basic_setup init/main.c:1031 [inline] kernel_init_freeable+0x4a9/0x596 init/main.c:1191 kernel_init+0xd/0x1bf init/main.c:1109 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff8881d58a6400 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 73 bytes to the right of 256-byte region [ffff8881d58a6400, ffff8881d58a6500) The buggy address belongs to the page: page:ffffea0007562980 refcount:1 mapcount:0 mapping:ffff8881da002780 index:0x0 compound_mapcount: 0 flags: 0x200000000010200(slab|head) raw: 0200000000010200 ffffea0007562900 0000000300000003 ffff8881da002780 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881d58a6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8881d58a6480: 00 00 00 00 00 00 00 00 05 fc fc fc fc fc fc fc >ffff8881d58a6500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881d58a6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881d58a6600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/10/25 21:24 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | 04ca72cd | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/23 02:42 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | d0686497 | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/23 01:32 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | 4ee855e7 | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/19 21:21 | https://github.com/google/kasan.git usb-fuzzer | 22be26f76193 | 8c88c9c1 | .config | console log | report | syz | C | ci2-upstream-usb | |||
2019/10/31 12:37 | https://github.com/google/kasan.git usb-fuzzer | ff6409a6ec35 | a41ca8fa | .config | console log | report | ci2-upstream-usb | |||||
2019/10/30 18:25 | https://github.com/google/kasan.git usb-fuzzer | ff6409a6ec35 | 5ea87a66 | .config | console log | report | ci2-upstream-usb |