Extracting prog: 1m3.09327541s
Minimizing prog: 5m55.851356626s
Simplifying prog options: 1m58.528156789s
Extracting C: 25.977435196s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program crashed: WARNING in hci_conn_timeout
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, 0x0, 0x0)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(0x0, 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(0x0, 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB], 0xa)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
program did not crash
simplifying guilty program options
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program crashed: WARNING in hci_conn_timeout
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
program did not crash
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program crashed: WARNING in hci_conn_timeout
validation run: crashed=true
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program crashed: WARNING in hci_conn_timeout
validation run: crashed=true
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-syz_emit_vhci-syz_emit_vhci
detailed listing:
executing program 0:
bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0x5, 0x3, 0x3800, 0x7, 0x11}, 0x48)
syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a"], 0x22)
syz_emit_vhci(&(0x7f0000000000)=ANY=[@ANYBLOB="040e079c0814"], 0xa)

program crashed: WARNING in hci_conn_timeout
validation run: crashed=true
reproducing took 11m38.239003159s
repro crashed as (corrupted=false):
------------[ cut here ]------------
refcnt < 0
WARNING: net/bluetooth/hci_conn.c:641 at hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641, CPU#2: kworker/u34:1/5092
Modules linked in:
CPU: 2 UID: 0 PID: 5092 Comm: kworker/u34:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: hci0 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641
Code: 44 0f b6 2d 73 9f 79 06 31 ff 41 83 e5 40 44 89 ee e8 2a 01 45 f7 45 84 ed 0f 84 02 ff ff ff e9 70 05 ab f6 e8 07 07 45 f7 90 <0f> 0b 90 e8 fe 06 45 f7 48 8d bb ed f5 ff ff 48 b8 00 00 00 00 00
RSP: 0018:ffffc90026347bf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888024028a50 RCX: 0000000000000000
RDX: ffff88802bf92580 RSI: ffffffff8ac718a9 RDI: ffff88802bf92580
RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 000000000000762b R12: ffff888024028000
R13: ffff88802bf92a44 R14: 0000000000000000 R15: ffff8880481a1c00
FS:  0000000000000000(0000) GS:ffff8880d5d56000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556e06f80a78 CR3: 000000000eb96000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
refcnt < 0
WARNING: net/bluetooth/hci_conn.c:641 at hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641, CPU#2: kworker/u34:1/5092
Modules linked in:
CPU: 2 UID: 0 PID: 5092 Comm: kworker/u34:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: hci0 hci_conn_timeout
RIP: 0010:hci_conn_timeout+0x16a/0x230 net/bluetooth/hci_conn.c:641
Code: 44 0f b6 2d 73 9f 79 06 31 ff 41 83 e5 40 44 89 ee e8 2a 01 45 f7 45 84 ed 0f 84 02 ff ff ff e9 70 05 ab f6 e8 07 07 45 f7 90 <0f> 0b 90 e8 fe 06 45 f7 48 8d bb ed f5 ff ff 48 b8 00 00 00 00 00
RSP: 0018:ffffc90026347bf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888024028a50 RCX: 0000000000000000
RDX: ffff88802bf92580 RSI: ffffffff8ac718a9 RDI: ffff88802bf92580
RBP: 00000000ffffffff R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffff R11: 000000000000762b R12: ffff888024028000
R13: ffff88802bf92a44 R14: 0000000000000000 R15: ffff8880481a1c00
FS:  0000000000000000(0000) GS:ffff8880d5d56000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556e06f80a78 CR3: 000000000eb96000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>