syzbot


WARNING in ida_free (2)

Status: upstream: reported C repro on 2024/02/13 16:36
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+dfab1425afcdae5ac970@syzkaller.appspotmail.com
First crash: 70d, last: 70d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bluetooth?] WARNING in ida_free (2) 2 (5) 2024/02/14 12:26
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ida_free v9fs 1 533d 529d 0/26 auto-obsoleted due to no activity on 2023/03/07 20:09
Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/02/27 22:18 16m retest repro upstream report log
2024/02/14 11:22 28m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK log
2024/02/14 00:24 24m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK log

Sample crash report:
------------[ cut here ]------------
ida_free called for id=8192 which is not allocated.
WARNING: CPU: 0 PID: 5169 at lib/idr.c:525 ida_free+0x1fb/0x2f0 lib/idr.c:525
Modules linked in:
CPU: 0 PID: 5169 Comm: syz-executor420 Not tainted 6.8.0-rc4-syzkaller-00005-gc664e16bb1ba #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ida_free+0x1fb/0x2f0 lib/idr.c:525
Code: dc f6 41 83 fe 3e 76 73 e8 82 95 dc f6 48 8b 7c 24 28 4c 89 ee e8 55 8f 18 00 90 48 c7 c7 00 7c 5b 8c 89 ee e8 46 ba a0 f6 90 <0f> 0b 90 90 e8 5c 95 dc f6 48 b8 00 00 00 00 00 fc ff df 48 01 c3
RSP: 0018:ffffc90003007a48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 1ffff92000600f4a RCX: ffffffff814f7499
RDX: ffff88801ccac800 RSI: ffffffff814f74a6 RDI: 0000000000000001
RBP: 0000000000002000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000293 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcad7713f08 CR3: 0000000027a24000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hci_conn_cleanup net/bluetooth/hci_conn.c:157 [inline]
 hci_conn_del+0x795/0xe20 net/bluetooth/hci_conn.c:1188
 hci_conn_hash_flush+0x18f/0x260 net/bluetooth/hci_conn.c:2646
 hci_dev_close_sync+0x59b/0x1160 net/bluetooth/hci_sync.c:4954
 hci_dev_do_close+0x2e/0x90 net/bluetooth/hci_core.c:554
 hci_unregister_dev+0x1eb/0x600 net/bluetooth/hci_core.c:2739
 vhci_release+0x7f/0x100 drivers/bluetooth/hci_vhci.c:674
 __fput+0x270/0xb80 fs/file_table.c:376
 task_work_run+0x14f/0x250 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa8a/0x2ad0 kernel/exit.c:871
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1020
 __do_sys_exit_group kernel/exit.c:1031 [inline]
 __se_sys_exit_group kernel/exit.c:1029 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1029
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fcad76bb449
Code: Unable to access opcode bytes at 0x7fcad76bb41f.
RSP: 002b:00007ffcea444888 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fcad76bb449
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007fcad77472b0 R08: ffffffffffffffb0 R09: 000000ff00ff3650
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcad77472b0
R13: 0000000000000000 R14: 00007fcad7747d00 R15: 00007fcad7689500
 </TASK>

Crashes (14):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/13 15:12 upstream c664e16bb1ba e66542d7 .config console log report syz C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ida_free
2024/02/13 22:01 upstream 7e90b5c295ec e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ida_free
2024/02/13 18:12 upstream c664e16bb1ba e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in ida_free
2024/02/13 15:25 upstream c664e16bb1ba e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ida_free
2024/02/13 11:34 upstream c664e16bb1ba 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in ida_free
2024/02/13 09:31 upstream c664e16bb1ba 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ida_free
2024/02/13 04:55 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ida_free
2024/02/13 04:40 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ida_free
2024/02/13 14:36 upstream c664e16bb1ba e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in ida_free
2024/02/13 04:46 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ida_free
2024/02/13 04:55 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ida_free
2024/02/13 07:45 linux-next 46d4e2eb58e1 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ida_free
2024/02/13 04:47 linux-next ae00c445390b 77b23aa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ida_free
2024/02/13 12:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f735966ee23c e66542d7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in ida_free
* Struck through repros no longer work on HEAD.