syzbot


BUG: corrupted list in mgmt_pending_remove

Status: upstream: reported on 2024/09/01 08:24
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+cc0cc52e7f43dc9e6df1@syzkaller.appspotmail.com
First crash: 130d, last: 11d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bluetooth?] BUG: corrupted list in mgmt_pending_remove 0 (1) 2024/09/01 08:24
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in mgmt_pending_remove bluetooth C unreliable 9 770d 790d 22/28 fixed on 2023/02/24 14:17

Sample crash report:
list_del corruption, ffff888026c81580->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 7249 Comm: syz.2.604 Not tainted 6.11.0-syzkaller-11503-gd505d3593b52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 61 e6 ff 06 90 0f 0b 48 c7 c7 60 04 61 8c 4c 89 fe e8 4f e6 ff 06 90 0f 0b 48 c7 c7 c0 04 61 8c 4c 89 fe e8 3d e6 ff 06 90 <0f> 0b 48 c7 c7 20 05 61 8c 4c 89 fe e8 2b e6 ff 06 90 0f 0b 48 c7
RSP: 0018:ffffc9000477f7b8 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 0690ac4de156f400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81746c8c R09: 1ffff920008efe94
R10: dffffc0000000000 R11: fffff520008efe95 R12: dffffc0000000000
R13: ffff88802cd14000 R14: dead000000000100 R15: ffff888026c81580
FS:  00007fa26d84d6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000030778000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 mgmt_pending_remove+0x26/0x1a0 net/bluetooth/mgmt_util.c:314
 mgmt_pending_foreach+0xd1/0x130 net/bluetooth/mgmt_util.c:259
 __mgmt_power_off+0x187/0x420 net/bluetooth/mgmt.c:9469
 hci_dev_close_sync+0x665/0x11a0 net/bluetooth/hci_sync.c:5191
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_dev_close+0x112/0x210 net/bluetooth/hci_core.c:508
 sock_do_ioctl+0x158/0x460 net/socket.c:1228
 sock_ioctl+0x626/0x8e0 net/socket.c:1347
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa26c97dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa26d84d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa26cb35f80 RCX: 00007fa26c97dff9
RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000004
RBP: 00007fa26c9f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa26cb35f80 R15: 00007fff0d6a2d38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 61 e6 ff 06 90 0f 0b 48 c7 c7 60 04 61 8c 4c 89 fe e8 4f e6 ff 06 90 0f 0b 48 c7 c7 c0 04 61 8c 4c 89 fe e8 3d e6 ff 06 90 <0f> 0b 48 c7 c7 20 05 61 8c 4c 89 fe e8 2b e6 ff 06 90 0f 0b 48 c7
RSP: 0018:ffffc9000477f7b8 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 0690ac4de156f400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff81746c8c R09: 1ffff920008efe94
R10: dffffc0000000000 R11: fffff520008efe95 R12: dffffc0000000000
R13: ffff88802cd14000 R14: dead000000000100 R15: ffff888026c81580
FS:  00007fa26d84d6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000030778000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/29 08:34 net d505d3593b52 ba29ff75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: corrupted list in mgmt_pending_remove
2024/09/01 08:23 net fe1910f9337b 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce BUG: corrupted list in mgmt_pending_remove
2024/09/03 00:12 net-next 55ddb6c5a3ae abeaa9b9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: corrupted list in mgmt_pending_remove
2024/08/21 15:15 net-next 4d36b2b1dea4 db5852f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: corrupted list in mgmt_pending_remove
2024/06/07 11:12 net-next 62b5bf58b928 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce BUG: corrupted list in mgmt_pending_remove
2024/08/03 01:53 upstream 948752d2e010 53683cf2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in mgmt_pending_remove
2024/09/15 14:41 upstream 0babf683783d 08d8a733 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in mgmt_pending_remove
2024/09/17 20:39 net 9410645520e9 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in mgmt_pending_remove
2024/06/24 06:41 net 02ea312055da edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in mgmt_pending_remove
2024/10/04 12:15 net-next f66ebf37d69c d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in mgmt_pending_remove
* Struck through repros no longer work on HEAD.