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🐞 Open [535] 🐞 Fixed [296] 🐞 Invalid [682] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.14 | KASAN: slab-out-of-bounds Read in hci_event_packet | C | done | 17 | 681d | 1154d | 1/1 | fixed on 2020/09/17 01:43 | |
upstream | KASAN: slab-out-of-bounds Read in hci_event_packet | C | done | error | 67 | 635d | 1269d | 0/22 | upstream: reported C repro on 2019/01/07 18:31 |
audit: type=1400 audit(1584261723.992:36): avc: denied { map } for pid=8171 comm="syz-executor226" path="/root/syz-executor226309558" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ================================================================== BUG: KASAN: slab-out-of-bounds in hci_extended_inquiry_result_evt net/bluetooth/hci_event.c:4162 [inline] BUG: KASAN: slab-out-of-bounds in hci_event_packet+0x48f5/0xa9d9 net/bluetooth/hci_event.c:5844 Read of size 6 at addr ffff88809fbad788 by task kworker/u5:0/1216 CPU: 1 PID: 1216 Comm: kworker/u5:0 Not tainted 4.19.109-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+0x188/0x20d lib/dump_stack.c:118 print_address_description.cold+0x7c/0x212 mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report mm/kasan/report.c:412 [inline] kasan_report.cold+0x88/0x2b9 mm/kasan/report.c:396 memcpy+0x20/0x50 mm/kasan/kasan.c:302 hci_extended_inquiry_result_evt net/bluetooth/hci_event.c:4162 [inline] hci_event_packet+0x48f5/0xa9d9 net/bluetooth/hci_event.c:5844 hci_rx_work+0x47b/0xab0 net/bluetooth/hci_core.c:4359 process_one_work+0x91f/0x1640 kernel/workqueue.c:2153 worker_thread+0x96/0xe20 kernel/workqueue.c:2296 kthread+0x34a/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Allocated by task 8179: set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc mm/kasan/kasan.c:553 [inline] kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:531 __do_kmalloc_node mm/slab.c:3689 [inline] __kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 __kmalloc_reserve.isra.0+0x39/0xe0 net/core/skbuff.c:137 __alloc_skb+0xef/0x5b0 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:995 [inline] bt_skb_alloc include/net/bluetooth/bluetooth.h:339 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:180 [inline] vhci_write+0xbd/0x460 drivers/bluetooth/hci_vhci.c:299 call_write_iter include/linux/fs.h:1820 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x512/0x760 fs/read_write.c:487 vfs_write+0x206/0x550 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 6110: set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0xf7/0x140 mm/kasan/kasan.c:521 __cache_free mm/slab.c:3503 [inline] kfree+0xce/0x220 mm/slab.c:3822 kernfs_fop_release+0x124/0x190 fs/kernfs/file.c:783 __fput+0x2cd/0x890 fs/file_table.c:278 task_work_run+0x13f/0x1b0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x25a/0x2b0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff88809fbad580 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes to the right of 512-byte region [ffff88809fbad580, ffff88809fbad780) The buggy address belongs to the page: page:ffffea00027eeb40 count:1 mapcount:0 mapping:ffff88812c3dc940 index:0x0 flags: 0xfffe0000000100(slab) raw: 00fffe0000000100 ffffea0002a202c8 ffffea0002397088 ffff88812c3dc940 raw: 0000000000000000 ffff88809fbad080 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88809fbad680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88809fbad700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88809fbad780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88809fbad800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88809fbad880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-19 | 2020/03/15 08:44 | linux-4.19.y | 569209711609 | 749688d2 | .config | log | report | syz | C | ||
ci2-linux-4-19 | 2020/08/11 13:19 | linux-4.19.y | 961f830af065 | 5d3ebca9 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/07 04:38 | linux-4.19.y | c076c79e03c6 | cb436c69 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/05 17:18 | linux-4.19.y | c076c79e03c6 | b7129355 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/04 01:25 | linux-4.19.y | 13af6c74b14a | 96dd3623 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/02 09:34 | linux-4.19.y | 13af6c74b14a | 96dd3623 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/02 09:18 | linux-4.19.y | 13af6c74b14a | 96dd3623 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/02 08:54 | linux-4.19.y | 13af6c74b14a | 96dd3623 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/02 08:53 | linux-4.19.y | 13af6c74b14a | 96dd3623 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/02 04:09 | linux-4.19.y | 13af6c74b14a | 8df85ed9 | .config | log | report | ||||
ci2-linux-4-19 | 2020/06/10 17:23 | linux-4.19.y | 106fa147d3da | 5caaad3a | .config | log | report | ||||
ci2-linux-4-19 | 2020/06/10 17:23 | linux-4.19.y | 106fa147d3da | 5caaad3a | .config | log | report | ||||
ci2-linux-4-19 | 2020/06/10 12:41 | linux-4.19.y | 106fa147d3da | 5caaad3a | .config | log | report | ||||
ci2-linux-4-19 | 2020/03/15 08:23 | linux-4.19.y | 569209711609 | 749688d2 | .config | log | report | ||||
ci2-linux-4-19 | 2020/01/14 15:51 | linux-4.19.y | dcd888983542 | 32881205 | .config | log | report |