------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5922 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 ------------[ cut here ]------------ Modules linked in: CPU: 0 PID: 5922 Comm: kworker/u5:6 Not tainted 4.19.191-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci3 hci_conn_timeout RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 RSP: 0018:ffff8881e2df7d40 EFLAGS: 00010286 RAX: 0000000000000024 RBX: ffff8881e76c8620 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 RBP: ffff8881e2df7d58 R08: ffffed103ed05081 R09: ffffed103ed05080 ------------[ cut here ]------------ R10: ffffed103ed05080 R11: ffff8881f6828407 R12: ffff8881e76c8500 R13: ffff8881f2857200 R14: ffff8881e7cdc400 R15: ffff8881e76c8620 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000533198 CR3: 000000000846d003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 WARNING: CPU: 1 PID: 5920 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Modules linked in: CPU: 1 PID: 5920 Comm: kworker/u5:4 Not tainted 4.19.191-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci1 hci_conn_timeout RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 RSP: 0018:ffff8881e8707d40 EFLAGS: 00010286 kthread+0x347/0x410 kernel/kthread.c:259 RAX: 0000000000000024 RBX: ffff8881dcfee2e0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 RBP: ffff8881e8707d58 R08: ffffed103ed25081 R09: ffffed103ed25080 R10: ffffed103ed25080 R11: ffff8881f6928407 R12: ffff8881dcfee1c0 R13: ffff8881f2857200 R14: ffff8881e915a400 R15: ffff8881dcfee2e0 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 irq event stamp: 410562 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 hardirqs last enabled at (410561): [] console_unlock+0xb9e/0xe20 kernel/printk/printk.c:2464 CR2: 00000000004dde81 CR3: 000000000846d001 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 hardirqs last disabled at (410562): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (408110): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: softirqs last disabled at (407613): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (407613): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 ---[ end trace 14a3821561f0830d ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5919 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Modules linked in: CPU: 0 PID: 5919 Comm: kworker/u5:3 Tainted: G W 4.19.191-syzkaller #0 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci4 hci_conn_timeout kthread+0x347/0x410 kernel/kthread.c:259 RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 RSP: 0018:ffff8881e811fd40 EFLAGS: 00010286 irq event stamp: 2660 RAX: 0000000000000024 RBX: ffff8881e712c4a0 RCX: 0000000000000000 hardirqs last enabled at (2659): [] trace_hardirqs_on_thunk+0x1a/0x1c RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 hardirqs last disabled at (2660): [] trace_hardirqs_off_thunk+0x1a/0x1c RBP: ffff8881e811fd58 R08: ffffed103ed05081 R09: ffffed103ed05080 softirqs last enabled at (2654): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (2639): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2639): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 R10: ffffed103ed05080 R11: ffff8881f6828407 R12: ffff8881e712c380 ---[ end trace 14a3821561f0830e ]--- R13: ffff8881f2857200 R14: ffff8881d6d91c00 R15: ffff8881e712c4a0 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 ------------[ cut here ]------------ CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 WARNING: CPU: 1 PID: 5895 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 CR2: 00007fdf5a070000 CR3: 000000000846d005 CR4: 00000000001606f0 Modules linked in: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CPU: 1 PID: 5895 Comm: kworker/u5:1 Tainted: G W 4.19.191-syzkaller #0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 Workqueue: hci2 hci_conn_timeout RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 RSP: 0018:ffff8881e88d7d40 EFLAGS: 00010286 RAX: 0000000000000024 RBX: ffff8881e76e6420 RCX: 0000000000000000 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 RBP: ffff8881e88d7d58 R08: ffffed103ed25081 R09: ffffed103ed25080 R10: ffffed103ed25080 R11: ffff8881f6928407 R12: ffff8881e76e6300 kthread+0x347/0x410 kernel/kthread.c:259 R13: ffff8881f2857200 R14: ffff8881e7cdcc00 R15: ffff8881e76e6420 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004dde81 CR3: 000000000846d001 CR4: 00000000001606e0 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 irq event stamp: 436 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hardirqs last enabled at (435): [] console_unlock+0xb9e/0xe20 kernel/printk/printk.c:2464 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 hardirqs last disabled at (436): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (0): [] copy_process.part.2+0x176b/0x7960 kernel/fork.c:1855 softirqs last disabled at (0): [<0000000000000000>] (null) ---[ end trace 14a3821561f0830f ]--- WARNING: CPU: 0 PID: 5923 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 Modules linked in: CPU: 0 PID: 5923 Comm: kworker/u5:7 Tainted: G W 4.19.191-syzkaller #0 kthread+0x347/0x410 kernel/kthread.c:259 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci0 hci_conn_timeout RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 irq event stamp: 1372 RSP: 0018:ffff8881db377d40 EFLAGS: 00010286 hardirqs last enabled at (1371): [] trace_hardirqs_on_thunk+0x1a/0x1c RAX: 0000000000000024 RBX: ffff8881e76c0520 RCX: 0000000000000000 hardirqs last disabled at (1372): [] trace_hardirqs_off_thunk+0x1a/0x1c RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 softirqs last enabled at (1370): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1355): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1355): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 RBP: ffff8881db377d58 R08: ffffed103ed05081 R09: ffffed103ed05080 R10: ffffed103ed05080 R11: ffff8881f6828407 R12: ffff8881e76c0400 R13: ffff8881f2857200 R14: ffff8881e915ac00 R15: ffff8881e76c0520 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 ---[ end trace 14a3821561f08310 ]--- CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 WARNING: CPU: 1 PID: 5921 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 CR2: 00007fdf5a070000 CR3: 000000000846d005 CR4: 00000000001606f0 Modules linked in: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CPU: 1 PID: 5921 Comm: kworker/u5:5 Tainted: G W 4.19.191-syzkaller #0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 Workqueue: hci5 hci_conn_timeout RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404 Code: 87 e8 f1 aa eb ff 0f 0b e9 12 10 36 ff e8 c3 ad b8 fa 48 c7 c7 e0 ad cd 87 e8 46 a4 02 00 48 c7 c7 a0 b1 cd 87 e8 cd aa eb ff <0f> 0b e9 ed b9 37 ff e8 9f ad b8 fa 48 c7 c7 60 b7 cd 87 e8 22 a4 RSP: 0018:ffff8881e789fd40 EFLAGS: 00010286 RAX: 0000000000000024 RBX: ffff8881e6dd6420 RCX: 0000000000000000 worker_thread+0x85/0xb60 kernel/workqueue.c:2295 RDX: 0000000000000000 RSI: ffffffff8767a000 RDI: ffffffff8a19eaa0 RBP: ffff8881e789fd58 R08: ffffed103ed25081 R09: ffffed103ed25080 R10: ffffed103ed25080 R11: ffff8881f6928407 R12: ffff8881e6dd6300 R13: ffff8881f2857200 R14: ffff8881d6d91400 R15: ffff8881e6dd6420 kthread+0x347/0x410 kernel/kthread.c:259 FS: 0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f82b4cf1000 CR3: 000000000846d004 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: irq event stamp: 400918 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152 hardirqs last enabled at (400917): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (400917): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (400918): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (394714): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (394447): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (394447): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 14a3821561f08311 ]--- worker_thread+0x85/0xb60 kernel/workqueue.c:2295 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 irq event stamp: 14076 hardirqs last enabled at (14075): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (14075): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (14076): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (14070): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (14055): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (14055): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 14a3821561f08312 ]--- Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout