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KASAN: slab-out-of-bounds Read in hci_inquiry_result_with_rssi_evt | 0 (1) | 2020/07/13 19:24 |
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KASAN: slab-out-of-bounds Read in hci_inquiry_result_with_rssi_evt | 0 (1) | 2020/07/13 19:24 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.14 | KASAN: slab-out-of-bounds Read in hci_inquiry_result_with_rssi_evt | C | done | 6 | 1516d | 1533d | 1/1 | fixed on 2020/09/16 13:17 | |
linux-4.19 | KASAN: slab-out-of-bounds Read in hci_inquiry_result_with_rssi_evt | C | done | 4 | 1525d | 1554d | 1/1 | fixed on 2020/09/09 05:22 |
================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:406 [inline] BUG: KASAN: slab-out-of-bounds in bacpy include/net/bluetooth/bluetooth.h:274 [inline] BUG: KASAN: slab-out-of-bounds in hci_inquiry_result_with_rssi_evt+0x230/0x6b0 net/bluetooth/hci_event.c:4172 Read of size 6 at addr ffff8880a75af9fb by task kworker/u5:1/6846 CPU: 1 PID: 6846 Comm: kworker/u5:1 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci0 hci_rx_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xae/0x436 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 check_memory_region_inline mm/kasan/generic.c:186 [inline] check_memory_region+0x13d/0x180 mm/kasan/generic.c:192 memcpy+0x20/0x60 mm/kasan/common.c:105 memcpy include/linux/string.h:406 [inline] bacpy include/net/bluetooth/bluetooth.h:274 [inline] hci_inquiry_result_with_rssi_evt+0x230/0x6b0 net/bluetooth/hci_event.c:4172 hci_event_packet+0x1e8c/0x86f5 net/bluetooth/hci_event.c:6115 hci_rx_work+0x22e/0xb10 net/bluetooth/hci_core.c:4705 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Allocated by task 6822: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0xae/0x550 net/core/skbuff.c:210 alloc_skb include/linux/skbuff.h:1083 [inline] bt_skb_alloc include/net/bluetooth/bluetooth.h:377 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:165 [inline] vhci_write+0xbd/0x450 drivers/bluetooth/hci_vhci.c:285 call_write_iter include/linux/fs.h:1908 [inline] new_sync_write+0x422/0x650 fs/read_write.c:503 vfs_write+0x59d/0x6b0 fs/read_write.c:578 ksys_write+0x12d/0x250 fs/read_write.c:631 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 4774: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] kasan_set_free_info mm/kasan/common.c:316 [inline] __kasan_slab_free+0xf5/0x140 mm/kasan/common.c:455 __cache_free mm/slab.c:3426 [inline] kfree+0x103/0x2c0 mm/slab.c:3757 kernfs_fop_release+0x120/0x190 fs/kernfs/file.c:782 __fput+0x33c/0x880 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:135 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:239 [inline] __prepare_exit_to_usermode+0x1e9/0x1f0 arch/x86/entry/common.c:269 do_syscall_64+0x6c/0xe0 arch/x86/entry/common.c:393 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff8880a75af800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 507 bytes inside of 512-byte region [ffff8880a75af800, ffff8880a75afa00) The buggy address belongs to the page: page:ffffea00029d6bc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffffea000289e8c8 ffffea00024c0cc8 ffff8880aa000a80 raw: 0000000000000000 ffff8880a75af000 0000000100000004 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a75af900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a75af980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880a75afa00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880a75afa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880a75afb00: fc fc fc fc fc fc fc fc 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/08/02 22:57 | upstream | ac3a0c847296 | 63a73341 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2020/08/01 07:10 | upstream | d8b9faec54ae | d895b3be | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2020/07/11 00:29 | upstream | a581387e415b | 18d18b59 | .config | console log | report | syz | C | ci-upstream-kasan-gce-selinux-root | |||
2020/07/09 23:33 | upstream | 0bddd227f3dc | bc238812 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2020/07/09 19:27 | upstream | 0bddd227f3dc | bc238812 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2020/07/09 19:56 | upstream | 0bddd227f3dc | bc238812 | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | |||
2020/07/11 20:04 | linux-next | d31958b30ea3 | 18d18b59 | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | |||
2020/08/02 10:39 | upstream | ac3a0c847296 | 63a73341 | .config | console log | report | ci-upstream-kasan-gce-selinux-root | |||||
2020/07/09 19:14 | upstream | 0bddd227f3dc | bc238812 | .config | console log | report | ci-upstream-kasan-gce |