syzbot


WARNING: ODEBUG bug in rfcomm_dlc_free

Status: upstream: reported C repro on 2018/07/31 06:34
Reported-by: syzbot+1f6d4ad860c650c2f215@syzkaller.appspotmail.com
First crash: 1653d, last: 1075d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: ODEBUG bug in rfcomm_dlc_free C done 16 1058d 1291d 1/1 fixed on 2020/04/16 05:11
linux-4.19 WARNING: ODEBUG bug in rfcomm_dlc_free C done 21 1060d 1291d 1/1 fixed on 2020/04/14 11:07
Last patch testing requests:
Created Duration User Patch Repo Result
2022/12/21 03:31 7m retest repro linux-next error
2022/12/21 02:31 23m retest repro linux-next OK log
2022/12/21 01:31 22m retest repro linux-next OK log
2022/12/20 20:31 23m retest repro linux-next OK log
2022/12/20 12:31 22m retest repro linux-next OK log
2022/12/20 10:31 22m retest repro linux-next OK log
2022/12/20 07:31 22m retest repro linux-next OK log
2022/12/20 07:31 21m retest repro net OK log
2022/12/20 03:31 22m retest repro linux-next OK log
2022/12/20 03:31 22m retest repro net OK log

Sample crash report:
random: sshd: uninitialized urandom read (32 bytes read)
urandom_read: 1 callbacks suppressed
random: sshd: uninitialized urandom read (32 bytes read)
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0x70 include/linux/list.h:64
WARNING: CPU: 0 PID: 4267 at lib/debugobjects.c:329 debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4267 Comm: syz-executor929 Not tainted 4.18.0-rc7-next-20180803+ #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:996
RIP: 0010:debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Code: 3a 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd 60 a8 3a 87 4c 89 f6 48 c7 c7 00 9e 3a 87 e8 26 70 e2 fd <0f> 0b 83 05 09 33 26 05 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffff8801b686f648 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816366f1 RDI: 0000000000000001
RBP: ffff8801b686f688 R08: ffff8801cb852380 R09: ffffed003b603ec2
R10: ffffed003b603ec2 R11: ffff8801db01f617 R12: 0000000000000001
R13: ffffffff87f9d1c0 R14: ffffffff873aa2a0 R15: ffffffff816988b0
 __debug_check_no_obj_freed lib/debugobjects.c:786 [inline]
 debug_check_no_obj_freed+0x3b2/0x595 lib/debugobjects.c:818
 kfree+0xc7/0x260 mm/slab.c:3812
 rfcomm_dlc_free+0x1e/0x30 net/bluetooth/rfcomm/core.c:328
 rfcomm_dlc_put include/net/bluetooth/rfcomm.h:258 [inline]
 __rfcomm_create_dev net/bluetooth/rfcomm/tty.c:417 [inline]
 rfcomm_create_dev net/bluetooth/rfcomm/tty.c:486 [inline]
 rfcomm_dev_ioctl+0x1dfe/0x2240 net/bluetooth/rfcomm/tty.c:588
 rfcomm_sock_ioctl+0x89/0xb0 net/bluetooth/rfcomm/sock.c:902
 sock_do_ioctl+0xe4/0x3e0 net/socket.c:950
 sock_ioctl+0x30d/0x680 net/socket.c:1074
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl fs/ioctl.c:707 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4406d9
Code: e8 2c af 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff697e60e8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004406d9
RDX: 0000000020000000 RSI: 00000000400452c8 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8
R10: 00000000013d1880 R11: 0000000000000213 R12: 0000000000009731
R13: 0000000000401c30 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (146):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-linux-next-kasan-gce-root 2018/08/05 05:58 linux-next 116b181bb646 3476a2df .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/16 19:49 upstream db70e26e33ee cf914200 .config console log report syz C
ci-upstream-kasan-gce-root 2020/02/15 13:07 upstream 2019fc96af22 5d7b90f1 .config console log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/14 08:26 upstream b19e8c684703 5d7b90f1 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2020/01/10 14:54 upstream e69ec487b2c7 4de4e9f0 .config console log report syz C
ci-upstream-kasan-gce-root 2020/01/09 14:20 upstream b07f636fca1c ddc3e859 .config console log report syz C
ci-upstream-kasan-gce-root 2020/01/06 07:55 upstream c79f46a28239 438e1227 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2020/01/06 05:58 upstream c79f46a28239 438e1227 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/28 17:27 upstream bf8d1cd43865 af6b8ef8 .config console log report syz C
ci-upstream-kasan-gce-root 2019/12/28 08:05 upstream f4b3974602a5 be5c2c81 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/26 18:51 upstream 46cf053efec6 be5c2c81 .config console log report syz C
ci-upstream-kasan-gce-root 2019/12/26 18:31 upstream 46cf053efec6 be5c2c81 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/11/05 20:30 upstream a99d8080aaf3 0f3ec414 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/10/31 20:59 upstream e472c64aa4fa a41ca8fa .config console log report syz C
ci-upstream-kasan-gce-smack-root 2019/10/29 15:19 upstream 8005803a2ca0 5ea87a66 .config console log report syz C
ci-upstream-kasan-gce-root 2019/10/29 12:55 upstream 8005803a2ca0 5ea87a66 .config console log report syz C
ci-upstream-kasan-gce-smack-root 2019/10/29 10:26 upstream 8005803a2ca0 5ea87a66 .config console log report syz C
ci-upstream-kasan-gce-root 2019/10/27 04:44 upstream f877bee5ea0b 25bb509e .config console log report syz C
ci-upstream-kasan-gce-smack-root 2019/10/26 13:05 upstream 8caacaad78b6 413926c5 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/10/23 23:41 upstream 13b86bc4cd64 b602d64b .config console log report syz C
ci-upstream-kasan-gce-smack-root 2019/10/18 20:46 upstream 0e2adab6cf28 8c88c9c1 .config console log report syz C
ci-upstream-kasan-gce-root 2019/10/18 10:10 upstream 283ea345934d 8c88c9c1 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/10/17 01:16 upstream bc88f85c6c09 8c88c9c1 .config console log report syz C
ci-upstream-kasan-gce-root 2019/10/12 06:09 upstream 9e208aa06c21 426631dd .config console log report syz C
ci-upstream-kasan-gce-smack-root 2019/10/12 05:26 upstream 9e208aa06c21 426631dd .config console log report syz C
ci-upstream-net-this-kasan-gce 2020/01/09 02:23 net 2f806c2a16b3 ddc3e859 .config console log report syz C
ci-upstream-net-this-kasan-gce 2020/01/06 01:24 net f11421ba4af7 438e1227 .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/12/28 07:17 net bb3d0b8bf5be be5c2c81 .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/12/26 18:22 net 095e90e080a5 be5c2c81 .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/10/29 15:27 net a793183caa9a 5ea87a66 .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/10/25 17:10 net 65921376425f c2e837da .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/10/09 00:16 net 503c9addef61 b1ebbfef .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/09/29 01:45 net faeacb6ddb13 eb6b9855 .config console log report syz C
ci-upstream-net-this-kasan-gce 2019/09/10 22:45 net f794dc2304d8 a60cb4cd .config console log report syz C
ci-upstream-net-kasan-gce 2020/01/09 02:27 net-next 53ebeca24a87 ddc3e859 .config console log report syz C
ci-upstream-net-kasan-gce 2020/01/05 21:58 net-next 4460985fac06 d646e21f .config console log report syz C
ci-upstream-net-kasan-gce 2019/12/28 06:20 net-next 9e41fbf3dd38 be5c2c81 .config console log report syz C
ci-upstream-net-kasan-gce 2019/12/26 18:21 net-next 9f6cff995e98 be5c2c81 .config console log report syz C
ci-upstream-net-kasan-gce 2019/10/29 10:51 net-next d5a721c96a44 5ea87a66 .config console log report syz C
ci-upstream-net-kasan-gce 2019/10/25 14:22 net-next 503a64635d5e d01bb02a .config console log report syz C
ci-upstream-net-kasan-gce 2019/10/08 23:52 net-next f9867b51d268 b1ebbfef .config console log report syz C
ci-upstream-net-kasan-gce 2019/10/01 23:21 net-next 5be5515a8ea1 b7a87a83 .config console log report syz C
ci-upstream-net-kasan-gce 2019/09/29 01:18 net-next b41dae061bbd eb6b9855 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/02/28 13:49 linux-next bdc5461b23ca 59b57593 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/01/11 03:11 linux-next 6c09d7dbb7d3 4de4e9f0 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/01/03 21:48 linux-next 7ddd09fc4b74 9dcc1191 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/01/02 12:16 linux-next 7ddd09fc4b74 25a0186e .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/11/22 17:15 linux-next b9d3d0140506 598ca6c8 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/11/17 19:06 linux-next 5a6fcbeabe3e d5696d51 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/10/30 17:00 linux-next fdbc6c104f95 5ea87a66 .config console log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/10/15 17:04 linux-next 0e9d28bc6c81 b5268b89 .config console log report syz C
ci-upstream-kasan-gce-selinux-root 2019/11/16 05:52 upstream eb70e26cd79d cdac920b .config console log report
ci-upstream-kasan-gce-selinux-root 2019/09/18 13:12 upstream 35f7a9526615 c2dcd700 .config console log report
ci-upstream-kasan-gce-root 2019/04/20 09:42 upstream 371dd432ab39 b0e8efcb .config console log report
ci-upstream-kasan-gce-selinux-root 2018/09/22 06:47 upstream 10dc890d4228 37079712 .config console log report
ci-upstream-kasan-gce-root 2018/09/05 05:19 upstream 28619527b8a7 a4718693 .config console log report
ci-upstream-kasan-gce-root 2018/09/01 21:34 upstream 360bd62dc494 a4718693 .config console log report
ci-upstream-kasan-gce-root 2018/08/19 22:41 upstream 2ad0d5269970 2dc4378f .config console log report
ci-upstream-kasan-gce-root 2018/08/19 20:39 upstream 08b5fa819970 2dc4378f .config console log report
ci-upstream-kasan-gce-root 2018/08/18 15:18 upstream 1f7a4c73a739 db1858f6 .config console log report
ci-upstream-kasan-gce-root 2018/08/18 10:41 upstream 1f7a4c73a739 db1858f6 .config console log report
ci-upstream-kasan-gce-root 2018/08/08 08:45 upstream 1236568ee3cb 1beb8136 .config console log report
ci-upstream-kasan-gce-root 2018/07/31 05:46 upstream 527838d470e3 1a381291 .config console log report
ci-upstream-net-this-kasan-gce 2020/01/16 16:43 net 567110f147b3 3de7aabb .config console log report
ci-upstream-net-this-kasan-gce 2020/01/15 00:11 net f8d7408a4d7f fa12bd3c .config console log report
ci-upstream-net-this-kasan-gce 2019/10/01 17:46 net 68ce6688a5ba b7a87a83 .config console log report
ci-upstream-net-this-kasan-gce 2019/09/13 17:11 net 8f6617badcc9 40fa42bc .config console log report
ci-upstream-net-this-kasan-gce 2019/09/12 08:41 net f4b752a6b270 f4e53c10 .config console log report
ci-upstream-net-this-kasan-gce 2019/09/11 03:15 net f794dc2304d8 a60cb4cd .config console log report
ci-upstream-net-this-kasan-gce 2019/09/06 00:21 net 7bdf4de12677 040fda58 .config console log report
ci-upstream-net-this-kasan-gce 2019/08/25 22:39 net e0e6d0628225 d21c5d9d .config console log report
ci-upstream-net-this-kasan-gce 2019/08/22 12:14 net aad12c239418 984250d5 .config console log report
ci-upstream-net-this-kasan-gce 2019/08/22 08:55 net aad12c239418 984250d5 .config console log report
ci-upstream-net-this-kasan-gce 2019/04/12 18:03 net e30584509659 8916f5e1 .config console log report
ci-upstream-net-kasan-gce 2019/12/25 04:11 net-next ac80010fc94e be5c2c81 .config console log report
ci-upstream-net-kasan-gce 2019/09/27 01:46 net-next b41dae061bbd 2f1548bc .config console log report
ci-upstream-net-kasan-gce 2019/09/24 09:08 net-next b41dae061bbd c68252d2 .config console log report
ci-upstream-net-kasan-gce 2019/09/23 11:03 net-next b41dae061bbd d96e88f3 .config console log report
ci-upstream-net-kasan-gce 2019/09/22 06:42 net-next b41dae061bbd d96e88f3 .config console log report
ci-upstream-net-kasan-gce 2019/09/18 18:30 net-next 1bab8d4c488b c2dcd700 .config console log report
ci-upstream-net-kasan-gce 2019/09/16 02:03 net-next a3d3c74da49c 32d59357 .config console log report
ci-upstream-net-kasan-gce 2019/08/31 03:34 net-next d00ee466a07e fd37b39e .config console log report
ci-upstream-net-kasan-gce 2019/08/30 06:03 net-next d00ee466a07e fd37b39e .config console log report
ci-upstream-net-kasan-gce 2019/08/29 10:43 net-next d00ee466a07e fd37b39e .config console log report
ci-upstream-net-kasan-gce 2019/08/29 07:03 net-next d00ee466a07e fd37b39e .config console log report
ci-upstream-net-kasan-gce 2019/08/13 14:53 net-next 53f6f391786e 8620c2c2 .config console log report
ci-upstream-net-kasan-gce 2019/07/29 14:13 net-next 31cc088a4f5d c85e1c5b .config console log report
ci-upstream-net-kasan-gce 2019/07/29 13:06 net-next 31cc088a4f5d c85e1c5b .config console log report
ci-upstream-net-kasan-gce 2019/05/09 05:45 net-next 80f232121b69 1ab4c999 .config console log report
ci-upstream-net-kasan-gce 2019/05/08 16:03 net-next a55a385d8c84 a7383bfa .config console log report
ci-upstream-net-kasan-gce 2019/05/08 05:01 net-next a55a385d8c84 a7383bfa .config console log report
ci-upstream-linux-next-kasan-gce-root 2019/04/20 22:51 linux-next 3f018f4a019a b0e8efcb .config console log report
ci-upstream-linux-next-kasan-gce-root 2018/10/06 14:16 linux-next 12ffaa1197f5 8b311eaf .config console log report
ci-upstream-linux-next-kasan-gce-root 2018/08/11 11:08 linux-next 4110b42356f3 7a88b141 .config console log report
ci-upstream-linux-next-kasan-gce-root 2018/07/30 19:02 linux-next d1e0b8e0cb7a 1a381291 .config console log report
* Struck through repros no longer work on HEAD.