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🐞 Open [707] 🐞 Fixed [181] 🐞 Invalid [624] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | KASAN: use-after-free Read in hci_chan_del | C | done | 24 | 571d | 916d | 1/1 | fixed on 2021/08/15 11:28 | |
upstream | KASAN: use-after-free Read in hci_chan_del | C | done | done | 87 | 638d | 917d | 0/24 | upstream: reported C repro on 2020/08/02 20:45 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2022/11/18 00:30 | 9m | retest repro | linux-4.14.y | report log | |
2022/11/17 23:30 | 9m | retest repro | linux-4.14.y | report log | |
2022/11/17 22:30 | 9m | retest repro | linux-4.14.y | report log | |
2022/11/17 21:30 | 13m | retest repro | linux-4.14.y | report log | |
2022/11/17 20:30 | 9m | retest repro | linux-4.14.y | report log | |
2022/11/17 19:30 | 10m | retest repro | linux-4.14.y | report log | |
2022/11/17 18:30 | 8m | retest repro | linux-4.14.y | error | |
2022/11/17 17:30 | 9m | retest repro | linux-4.14.y | report log | |
2022/11/17 16:30 | 10m | retest repro | linux-4.14.y | report log | |
2022/11/17 14:30 | 13m | retest repro | linux-4.14.y | report log |
audit: type=1400 audit(1601306915.323:8): avc: denied { execmem } for pid=6384 comm="syz-executor465" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KASAN: use-after-free in hci_chan_del+0x131/0x180 net/bluetooth/hci_conn.c:1547 Read of size 8 at addr ffff8880926c63d8 by task syz-executor465/6385 CPU: 0 PID: 6385 Comm: syz-executor465 Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430 hci_chan_del+0x131/0x180 net/bluetooth/hci_conn.c:1547 l2cap_conn_del+0x417/0x670 net/bluetooth/l2cap_core.c:1736 l2cap_disconn_cfm net/bluetooth/l2cap_core.c:7435 [inline] l2cap_disconn_cfm+0x6b/0x80 net/bluetooth/l2cap_core.c:7428 hci_disconn_cfm include/net/bluetooth/hci_core.h:1226 [inline] hci_conn_hash_flush+0x114/0x220 net/bluetooth/hci_conn.c:1376 hci_dev_do_close+0x542/0xc50 net/bluetooth/hci_core.c:1620 hci_unregister_dev+0x170/0x7a0 net/bluetooth/hci_core.c:3191 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:354 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa08/0x27f0 kernel/exit.c:865 do_group_exit+0x100/0x2e0 kernel/exit.c:962 SYSC_exit_group kernel/exit.c:973 [inline] SyS_exit_group+0x19/0x20 kernel/exit.c:971 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4450c8 RSP: 002b:00007ffea48c61c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004450c8 RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 RBP: 00000000004cce50 R08: 00000000000000e7 R09: ffffffffffffffd0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006e0200 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 6388: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] hci_chan_create+0x7c/0x300 net/bluetooth/hci_conn.c:1532 l2cap_conn_add.part.0+0x18/0xc20 net/bluetooth/l2cap_core.c:7056 l2cap_conn_add net/bluetooth/l2cap_core.c:7415 [inline] l2cap_connect_cfm+0x1d2/0xce0 net/bluetooth/l2cap_core.c:7373 hci_connect_cfm include/net/bluetooth/hci_core.h:1211 [inline] hci_le_conn_complete_evt net/bluetooth/hci_event.c:4609 [inline] hci_le_meta_evt+0x3288/0x3fc0 net/bluetooth/hci_event.c:5168 hci_event_packet+0x19eb/0x7d1d net/bluetooth/hci_event.c:5423 hci_rx_work+0x3e6/0x970 net/bluetooth/hci_core.c:4244 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Freed by task 1200: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kfree+0xc9/0x250 mm/slab.c:3815 hci_disconn_loglink_complete_evt net/bluetooth/hci_event.c:4440 [inline] hci_event_packet+0xee6/0x7d1d net/bluetooth/hci_event.c:5444 hci_rx_work+0x3e6/0x970 net/bluetooth/hci_core.c:4244 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 The buggy address belongs to the object at ffff8880926c63c0 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 24 bytes inside of 128-byte region [ffff8880926c63c0, ffff8880926c6440) The buggy address belongs to the page: page:ffffea000249b180 count:1 mapcount:0 mapping:ffff8880926c6000 index:0xffff8880926c6780 flags: 0xfffe0000000100(slab) raw: 00fffe0000000100 ffff8880926c6000 ffff8880926c6780 0000000100000009 raw: ffffea0002692a20 ffffea0002376320 ffff88812fe50640 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880926c6280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8880926c6300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880926c6380: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ^ ffff8880926c6400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8880926c6480: 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 | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-14 | 2020/09/28 15:30 | linux-4.14.y | cbfa1702aaf6 | 6bfdbe89 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/10 05:33 | linux-4.14.y | 14b58326976d | 70301872 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/08 08:14 | linux-4.14.y | 14b58326976d | ff51e522 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/07 04:15 | linux-4.14.y | ca4f2c56d416 | cb436c69 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/06 18:29 | linux-4.14.y | ca4f2c56d416 | 4ca1c0ea | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/06 08:14 | linux-4.14.y | ca4f2c56d416 | 0487ea6f | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/08/10 05:02 | linux-4.14.y | 14b58326976d | 70301872 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/09 05:25 | linux-4.14.y | 14b58326976d | f721e4a0 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/06 17:37 | linux-4.14.y | ca4f2c56d416 | 4ca1c0ea | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/06 14:38 | linux-4.14.y | ca4f2c56d416 | 4ca1c0ea | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/06 13:40 | linux-4.14.y | ca4f2c56d416 | 4ca1c0ea | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/04 08:45 | linux-4.14.y | 7f2c5eb458b8 | 96dd3623 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/03 19:26 | linux-4.14.y | 7f2c5eb458b8 | 96dd3623 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2020/08/03 13:37 | linux-4.14.y | 7f2c5eb458b8 | 96dd3623 | .config | console log | report | syz | ||||
ci2-linux-4-14 | 2021/05/14 08:53 | linux-4.14.y | 7d7d1c0ab3eb | 8bdd5343 | .config | console log | report | info | KASAN: use-after-free Read in hci_chan_del | |||
ci2-linux-4-14 | 2021/05/10 18:56 | linux-4.14.y | 7d7d1c0ab3eb | ca873091 | .config | console log | report | info | KASAN: use-after-free Read in hci_chan_del | |||
ci2-linux-4-14 | 2021/04/19 13:06 | linux-4.14.y | cf256fbcbe34 | 50f523d7 | .config | console log | report | info | KASAN: use-after-free Read in hci_chan_del | |||
ci2-linux-4-14 | 2021/02/19 00:14 | linux-4.14.y | 2c8a3fceddf0 | 14052202 | .config | console log | report | info | KASAN: use-after-free Read in hci_chan_del | |||
ci2-linux-4-14 | 2021/01/03 16:34 | linux-4.14.y | 1752938529c6 | 79264ae3 | .config | console log | report | info | ||||
ci2-linux-4-14 | 2020/12/02 07:18 | linux-4.14.y | 87335852c5d9 | c42a35e9 | .config | console log | report | info | ||||
ci2-linux-4-14 | 2020/11/17 03:40 | linux-4.14.y | 27ce4f2a6817 | 1bf9a662 | .config | console log | report | info |