[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[ 14.840048][ T1667] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 25.435526][ T1705] random: sshd: uninitialized urandom read (32 bytes read)
[ 25.450891][ C1] random: crng init done
Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts.
2019/09/03 14:06:50 fuzzer started
2019/09/03 14:06:51 dialing manager at 10.128.0.105:43075
2019/09/03 14:06:51 syscalls: 84
2019/09/03 14:06:51 code coverage: enabled
2019/09/03 14:06:51 comparison tracing: enabled
2019/09/03 14:06:51 extra coverage: enabled
2019/09/03 14:06:51 setuid sandbox: enabled
2019/09/03 14:06:51 namespace sandbox: enabled
2019/09/03 14:06:51 Android sandbox: /sys/fs/selinux/policy does not exist
2019/09/03 14:06:51 fault injection: enabled
2019/09/03 14:06:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/09/03 14:06:51 net packet injection: /dev/net/tun can't be opened (open /dev/net/tun: no such device)
2019/09/03 14:06:51 net device setup: enabled
14:06:51 executing program 0:
syz_usb_connect(0x0, 0x2d, &(0x7f0000000000)=ANY=[@ANYBLOB="120100003f76622063078020dfcf0000000509021b0001000000000904000001efd04f0009050f000000000000"], 0x0)
14:06:51 executing program 1:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x9, 0xab, 0x23, 0x40, 0x5ac, 0x25a, 0x309e, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x77, 0x0, 0x0, 0x3, 0x5b, 0x2}}]}}]}}, 0x0)
syz_open_dev$evdev(&(0x7f0000000080)='/dev/input/event#\x00', 0x4, 0x0)
syz_usb_disconnect(r0)
syz_usb_connect(0x0, 0x24, &(0x7f00000001c0)=ANY=[@ANYBLOB="120151020e801d10d27f5512b2da00000001090212000107f7000009040000004ba0d7ef1fbf15bc962c5d043d5fd2523280e82315fc2d25bd666b4cb5dbd6fe79da75934cd8dc9fce3d21d280737a3fe4e5fec3179fb8f4769b1a1697dde9675ff573b930ce1dc2c722422fff2fd01d4672da4110098bb606d1c348cb9ead7da89cc688cede5cdd86a1377d6dc12d56a0062e2d1dd48cfe1ee7837babf42896aad002be197333588bd28ebaa26924a67427f387c34e7a21378b71be04c36b0070f3d5ba1015c3488b65c42ed998066801e7a18b18781a3f91226e62f99d408b3d3936159b000000000000"], &(0x7f0000000980)={0x0, 0x0, 0x23, &(0x7f00000003c0)={0x5, 0xf, 0x23, 0x3, [@ssp_cap={0x14, 0x10, 0xa, 0x0, 0x2, 0x0, 0x0, 0x0, [0x0, 0x0]}, @generic={0x3}, @ext_cap={0x7}]}, 0x1, [{0x0, 0x0}]})
14:06:51 executing program 5:
syz_usb_connect(0x0, 0x36, &(0x7f0000000840)=ANY=[@ANYBLOB="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"], 0x0)
syz_open_dev$hiddev(&(0x7f00000001c0)='/dev/usb/hiddev#\x00', 0x0, 0x4000)
14:06:51 executing program 2:
syz_open_dev$hidraw(&(0x7f00000012c0)='/dev/../raw#\x00', 0x0, 0x204)
r0 = syz_open_dev$hidraw(0x0, 0x0, 0x4000)
r1 = syz_open_dev$hidraw(0x0, 0x0, 0x0)
r2 = syz_open_dev$hidraw(0x0, 0x0, 0x201)
read$hidraw(0xffffffffffffffff, 0x0, 0x0)
ioctl$HIDIOCGFEATURE(0xffffffffffffffff, 0xc0404807, 0x0)
write$hidraw(r2, &(0x7f0000001200)='\x00', 0xffffff45)
write$hidraw(r1, &(0x7f0000001140), 0x0)
syz_open_dev$evdev(&(0x7f0000001100)='/dev/input/event#\x00', 0x6, 0x2c2000)
ioctl$HIDIOCGPHYS(0xffffffffffffffff, 0x80404812, &(0x7f00000010c0))
read$hidraw(r1, &(0x7f0000003200)=""/4096, 0xffffffad)
syz_open_dev$evdev(&(0x7f0000000080)='/dev/input/event#\x00', 0x40, 0x101100)
syz_open_dev$hidraw(&(0x7f0000000000)='/dev/hidraw#\x00', 0x0, 0x2040)
read$hidraw(r0, &(0x7f0000003200)=""/4096, 0xffffffad)
14:06:51 executing program 3:
r0 = syz_open_dev$hidraw(0x0, 0x8001, 0x2000)
ioctl$HIDIOCSFEATURE(r0, 0xc0404806, &(0x7f0000000100)="ad6046a491348b0c2dda15ee6fe24f0256179b810a62bdf2b2f92b03e423d2d8914450b177a0c97385782e81b35fb30b93f57602d1de2c0a1dd3b13c0d0707f219fde40609ad189774274e584fb99d7d1ee7c170de6c68ccdd318747870a73ba85679166f7a49f0ac19786790a798215293501c2785269306905fc9232f2527c8749ce769b18ad811722b1bd7c7e53ce8fb2da6c3a394807a11beeb5c9887ce49c1a796a8290f2da0df0dfe8")
syz_open_dev$hidraw(&(0x7f0000000280)='/dev/../raw#\x00', 0x0, 0x7d)
r1 = syz_open_dev$hidraw(0x0, 0x0, 0x0)
r2 = syz_open_dev$evdev(0x0, 0x3, 0xfffffffffffffffc)
r3 = syz_open_dev$hidraw(0x0, 0x0, 0x80402)
r4 = syz_open_dev$evdev(0x0, 0x0, 0x0)
ioctl$EVIOCSABS2F(r4, 0x401845ef, &(0x7f00000003c0))
r5 = syz_open_dev$hiddev(&(0x7f00000000c0)='/dev/usb/hiddev#\x00', 0x1, 0x40)
ioctl$EVIOCGPROP(r2, 0x80404509, &(0x7f0000000400)=""/85)
syz_open_dev$hiddev(&(0x7f0000000340)='/dev/usb/hiddev#\x00', 0x1, 0x84000)
write$hidraw(r3, &(0x7f0000000080)="c7", 0x20000081)
syz_usb_connect(0x3, 0x57, &(0x7f0000000680)=ANY=[@ANYBLOB="12015002b71ca010b40b760a90230012ff010902450001080090010904d50505bf5f000000000000020003ff02020d09058f10050000000006000905021005000f72a90905000b0400000000020009050f03ffff8e3709"], &(0x7f0000000700)=ANY=[@ANYBLOB="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"])
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
ioctl$HIDIOCINITREPORT(r5, 0x4805, 0x0)
ioctl$HIDIOCGRDESCSIZE(r1, 0x80044801, &(0x7f0000000000))
ioctl$EVIOCGBITSND(0xffffffffffffffff, 0x80404532, 0x0)
ioctl$EVIOCGKEYCODE_V2(r2, 0x80284504, &(0x7f0000000500)=""/115)
ioctl$HIDIOCGRAWPHYS(0xffffffffffffffff, 0x80404805, 0x0)
ioctl$EVIOCGKEYCODE(r4, 0x80084504, &(0x7f00000001c0)=""/59)
ioctl$HIDIOCGFEATURE(0xffffffffffffffff, 0xc0404807, 0x0)
ioctl$HIDIOCGCOLLECTIONINDEX(r5, 0x40184810, &(0x7f0000005700)={0x3, 0x200, 0x0, 0x5, 0x5000000000, 0x21487463})
read$hidraw(r1, &(0x7f0000003200)=""/4096, 0xffffffad)
write$hidraw(r3, &(0x7f0000000200)="b2119e62929d2caec0c03f5f3b8815ece0c03ae9719d8aaa2082bf9dfcfcdea5f43cf0aeb8f7960a88c2fd287e4bcbd55c5dba435a979851fedfc5195fcf498a5e372daa98a9067a5a427428db799adc9e04bd6357f8fe", 0xffffffc6)
ioctl$EVIOCGVERSION(r4, 0x80044501, &(0x7f0000000580)=""/244)
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="bec461ce7f2ffbf71fb70cff03000000000000090212d998ab36085636982e657175a79f0001000000000904c30000232f0b"], 0x0)
r6 = syz_open_dev$evdev(&(0x7f0000000d80)='/dev/input/event#\x00', 0xe6f4, 0x0)
ioctl$EVIOCSKEYCODE_V2(r6, 0x80084504, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x0, "ee8e5c38bcceb0d10a88dd95c3493f45a80318e776ed55f38e82944736adadaa"})
14:06:51 executing program 4:
syz_usb_connect(0x0, 0x24, &(0x7f00000002c0)={{0x12, 0x1, 0x0, 0x19, 0xfe, 0x27, 0x40, 0x710, 0x1, 0x7ba5, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xe2, 0x0, 0x0, 0xf2, 0xda, 0x7f}}]}}]}}, 0x0)
[ 33.712347][ T1742] cgroup1: Unknown subsys name 'perf_event'
[ 33.738459][ T1742] cgroup1: Unknown subsys name 'net_cls'
[ 33.795155][ T1745] cgroup1: Unknown subsys name 'perf_event'
[ 33.815156][ T1748] cgroup1: Unknown subsys name 'perf_event'
[ 33.817483][ T1745] cgroup1: Unknown subsys name 'net_cls'
[ 33.822349][ T1750] cgroup1: Unknown subsys name 'perf_event'
[ 33.832809][ T1747] cgroup1: Unknown subsys name 'perf_event'
[ 33.833243][ T1748] cgroup1: Unknown subsys name 'net_cls'
[ 33.850894][ T1747] cgroup1: Unknown subsys name 'net_cls'
[ 33.865899][ T1750] cgroup1: Unknown subsys name 'net_cls'
[ 33.868873][ T1752] cgroup1: Unknown subsys name 'perf_event'
[ 33.878764][ T1752] cgroup1: Unknown subsys name 'net_cls'
14:06:55 executing program 2:
syz_open_dev$hidraw(&(0x7f00000012c0)='/dev/../raw#\x00', 0x0, 0x204)
r0 = syz_open_dev$hidraw(0x0, 0x0, 0x4000)
r1 = syz_open_dev$hidraw(0x0, 0x0, 0x0)
r2 = syz_open_dev$hidraw(0x0, 0x0, 0x201)
read$hidraw(0xffffffffffffffff, 0x0, 0x0)
ioctl$HIDIOCGFEATURE(0xffffffffffffffff, 0xc0404807, 0x0)
write$hidraw(r2, &(0x7f0000001200)='\x00', 0xffffff45)
write$hidraw(r1, &(0x7f0000001140), 0x0)
syz_open_dev$evdev(&(0x7f0000001100)='/dev/input/event#\x00', 0x6, 0x2c2000)
ioctl$HIDIOCGPHYS(0xffffffffffffffff, 0x80404812, &(0x7f00000010c0))
read$hidraw(r1, &(0x7f0000003200)=""/4096, 0xffffffad)
syz_open_dev$evdev(&(0x7f0000000080)='/dev/input/event#\x00', 0x40, 0x101100)
syz_open_dev$hidraw(&(0x7f0000000000)='/dev/hidraw#\x00', 0x0, 0x2040)
read$hidraw(r0, &(0x7f0000003200)=""/4096, 0xffffffad)
[ 37.007850][ T83] usb 6-1: new high-speed USB device number 2 using dummy_hcd
[ 37.048021][ C1] ------------[ cut here ]------------
[ 37.053668][ C1] WARNING: CPU: 1 PID: 0 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26
[ 37.057832][ T1984] usb 2-1: new high-speed USB device number 2 using dummy_hcd
[ 37.062513][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 37.076539][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc7+ #0
[ 37.083642][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 37.093705][ C1] Call Trace:
[ 37.097002][ C1]
[ 37.099866][ C1] dump_stack+0xca/0x13e
[ 37.104118][ C1] ? kcov_remote_stop+0x110/0x1bc
[ 37.109262][ C1] panic+0x2a3/0x6da
[ 37.113166][ C1] ? add_taint.cold+0x16/0x16
[ 37.117799][ C0] ------------[ cut here ]------------
[ 37.117867][ C1] ? __probe_kernel_read+0x188/0x1d0
[ 37.123344][ C0] WARNING: CPU: 0 PID: 2747 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26
[ 37.128573][ C1] ? __warn.cold+0x5/0x4a
[ 37.137644][ C0] Modules linked in:
[ 37.141963][ C1] ? __warn+0xe3/0x1e0
[ 37.141977][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 37.145849][ C0] CPU: 0 PID: 2747 Comm: syz-executor.3 Not tainted 5.3.0-rc7+ #0
[ 37.149889][ C1] __warn.cold+0x20/0x4a
[ 37.155159][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 37.162959][ C1] ? __irq_work_queue_local+0xa3/0xe0
[ 37.167182][ C0] RIP: 0010:kcov_remote_start.cold+0xc/0x26
[ 37.177227][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 37.182583][ C0] Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9
[ 37.188451][ C1] report_bug+0x262/0x2a0
[ 37.193703][ C0] RSP: 0018:ffff8881db209ae8 EFLAGS: 00010082
[ 37.213296][ C1] do_error_trap+0x12b/0x1e0
[ 37.217591][ C0] RAX: 0000000000000024 RBX: ffff8881d5639980 RCX: 0000000000000000
[ 37.217602][ C0] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b64134f
[ 37.223644][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 37.228206][ C0] RBP: ffff8881d5639980 R08: 0000000000000024 R09: ffffed103b645d58
[ 37.236178][ C1] do_invalid_op+0x32/0x40
[ 37.244120][ C0] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881ca2c4d88
[ 37.244131][ C0] R13: ffff8881d5600038 R14: dffffc0000000000 R15: ffff8881b1a8b900
[ 37.249392][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 37.257363][ C0] FS: 00007f7676de6700(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
[ 37.261765][ C1] invalid_op+0x23/0x30
[ 37.269711][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 37.277666][ C1] RIP: 0010:kcov_remote_start.cold+0xc/0x26
[ 37.282921][ C0] CR2: 0000000020fa407f CR3: 00000001c9399000 CR4: 00000000001406f0
[ 37.291830][ C1] Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9
[ 37.295969][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 37.302527][ C1] RSP: 0018:ffff8881db309ae8 EFLAGS: 00010082
[ 37.308386][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 37.308393][ C0] Call Trace:
[ 37.316341][ C1] RAX: 0000000000000024 RBX: ffff8881d56d8880 RCX: 0000000000000000
[ 37.316353][ C1] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b66134f
[ 37.335933][ C0]
[ 37.343885][ C1] RBP: ffff8881d56d8880 R08: 0000000000000024 R09: ffffed103b665d58
[ 37.349931][ C0] dummy_timer+0x125f/0x301a
[ 37.357977][ C1] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881c946ff08
[ 37.361242][ C0] ? lock_acquire+0x127/0x320
[ 37.369187][ C1] R13: ffff8881d560a138 R14: dffffc0000000000 R15: ffff8881c8f3f800
[ 37.377141][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.379982][ C1] ? vprintk_func+0x7d/0x113
[ 37.387929][ C0] call_timer_fn+0x179/0x650
[ 37.392493][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 37.400454][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.405104][ C1] dummy_timer+0x125f/0x301a
[ 37.413057][ C0] ? msleep_interruptible+0x130/0x130
[ 37.417968][ C1] ? lock_acquire+0x127/0x320
[ 37.422530][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 37.427092][ C1] ? dummy_udc_probe+0x930/0x930
[ 37.432362][ C0] ? mark_held_locks+0x9f/0xe0
[ 37.437273][ C1] call_timer_fn+0x179/0x650
[ 37.441834][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 37.441848][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.447191][ C1] ? dummy_udc_probe+0x930/0x930
[ 37.451846][ C0] run_timer_softirq+0x5cc/0x14b0
[ 37.456845][ C1] ? msleep_interruptible+0x130/0x130
[ 37.461757][ C0] ? add_timer+0x7a0/0x7a0
[ 37.466493][ C1] ? do_raw_spin_lock+0x11a/0x280
[ 37.471073][ C0] ? mark_lock+0xbc/0x1130
[ 37.476263][ C1] ? _raw_spin_unlock_irq+0x24/0x30
[ 37.481173][ C0] __do_softirq+0x221/0x912
[ 37.486084][ C1] ? dummy_udc_probe+0x930/0x930
[ 37.491080][ C0] irq_exit+0x178/0x1a0
[ 37.496422][ C1] run_timer_softirq+0x5cc/0x14b0
[ 37.500812][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 37.505809][ C1] ? add_timer+0x7a0/0x7a0
[ 37.510208][ C0] apic_timer_interrupt+0xf/0x20
[ 37.515378][ C1] ? ktime_get+0x162/0x1c0
[ 37.519884][ C0]
[ 37.524798][ C1] ? lapic_next_event+0x4d/0x80
[ 37.528942][ C0] RIP: 0010:lock_release+0x3c5/0x6b0
[ 37.533937][ C1] __do_softirq+0x221/0x912
[ 37.539454][ C0] Code: c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b 02 00 00 c7 85 44 08 00 00 00 00 00 00 ff 34 24 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 c7 43
[ 37.543848][ C1] irq_exit+0x178/0x1a0
[ 37.548753][ C0] RSP: 0018:ffff8881c85bf5a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 37.553148][ C1] smp_apic_timer_interrupt+0x12f/0x500
[ 37.556056][ C0] RAX: 0000000000000007 RBX: 1ffff110390b7eb7 RCX: 1ffff11039116407
[ 37.560882][ C1] apic_timer_interrupt+0xf/0x20
[ 37.566135][ C0] RDX: 0000000000000000 RSI: 1ffff11039116418 RDI: ffff8881c88b2044
[ 37.570609][ C1]
[ 37.590192][ C0] RBP: ffff8881c88b1800 R08: 0000000000000000 R09: fffffbfff0f13ce8
[ 37.594330][ C1] RIP: 0010:default_idle+0x28/0x2e0
[ 37.602698][ C0] R10: fffffbfff0f13ce7 R11: ffffffff8789e73f R12: ffffffff8165dafc
[ 37.602709][ C0] R13: ffff8881c88b2040 R14: ffff8881c88b1800 R15: 0000000000000004
[ 37.608231][ C1] Code: 90 90 41 56 41 55 65 44 8b 2d 54 d8 93 7a 41 54 55 53 0f 1f 44 00 00 e8 46 49 d5 fb e9 07 00 00 00 0f 00 2d ea 7d 54 00 fb f4 <65> 44 8b 2d 30 d8 93 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3
[ 37.616182][ C0] ? get_mem_cgroup_from_page+0xfc/0x3c0
[ 37.621085][ C1] RSP: 0018:ffff8881da217dc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 37.629039][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 37.631948][ C1] RAX: 0000000000000007 RBX: ffff8881da1fb000 RCX: 0000000000000000
[ 37.639919][ C0] ? lock_acquire+0x127/0x320
[ 37.645087][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da1fb844
[ 37.653058][ C0] ? get_mem_cgroup_from_page+0x7a/0x3c0
[ 37.661002][ C1] RBP: ffffed103b43f600 R08: ffff8881da1fb000 R09: 0000000000000000
[ 37.680597][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 37.680610][ C0] get_mem_cgroup_from_page+0x11b/0x3c0
[ 37.686231][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 37.694631][ C0] ? mem_cgroup_usage_register_event+0x10/0x10
[ 37.699452][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
[ 37.707502][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 37.712151][ C1] ? default_idle+0x1a/0x2e0
[ 37.720112][ C0] alloc_page_buffers+0x42/0x590
[ 37.725729][ C1] do_idle+0x3c2/0x4f0
[ 37.733676][ C0] create_empty_buffers+0x2c/0x640
[ 37.738934][ C1] ? __wake_up_common+0x147/0x640
[ 37.744475][ C0] ? __alloc_pages_nodemask+0x5ae/0x780
[ 37.752420][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 37.752436][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 37.758565][ C0] create_page_buffers+0x1b7/0x230
[ 37.766527][ C1] ? lockdep_hardirqs_on+0x379/0x580
[ 37.771708][ C0] __block_write_begin_int+0x1d8/0x19b0
[ 37.776271][ C1] cpu_startup_entry+0x14/0x20
[ 37.781186][ C0] ? ext4_inode_csum_set+0x3a0/0x3a0
[ 37.785225][ C1] start_secondary+0x297/0x340
[ 37.790312][ C0] ? add_to_page_cache_lru+0x1b6/0x2e0
[ 37.795304][ C1] ? set_cpu_sibling_map+0x1ff0/0x1ff0
[ 37.800827][ C0] ? __breadahead+0xf0/0xf0
[ 37.805832][ C1] secondary_startup_64+0xa4/0xb0
[ 37.811613][ C0] ext4_da_write_begin+0x521/0xc00
[ 37.867705][ C0] ? ext4_write_begin+0xd50/0xd50
[ 37.872712][ C0] ? csum_and_copy_to_iter+0x1380/0x1380
[ 37.878326][ C0] generic_perform_write+0x20a/0x4f0
[ 37.883591][ C0] ? page_cache_next_miss+0x300/0x300
[ 37.888944][ C0] ? current_time+0x140/0x140
[ 37.893599][ C0] ? generic_write_checks+0x278/0x360
[ 37.898964][ C0] __generic_file_write_iter+0x390/0x5c0
[ 37.904577][ C0] ext4_file_write_iter+0x406/0x1230
[ 37.909845][ C0] ? mark_held_locks+0xe0/0xe0
[ 37.914609][ C0] ? ext4_release_file+0x370/0x370
[ 37.919738][ C0] ? mark_lock+0xbc/0x1130
[ 37.924297][ C0] ? __lock_acquire+0x145e/0x3b50
[ 37.929327][ C0] new_sync_write+0x420/0x650
[ 37.933998][ C0] ? new_sync_read+0x6d0/0x6d0
[ 37.938751][ C0] ? mark_held_locks+0xe0/0xe0
[ 37.943506][ C0] ? mutex_trylock+0x2c0/0x2c0
[ 37.948249][ C0] __vfs_write+0xc9/0x100
[ 37.952559][ C0] vfs_write+0x262/0x5c0
[ 37.956780][ C0] ksys_write+0x127/0x250
[ 37.961105][ C0] ? __ia32_sys_read+0xb0/0xb0
[ 37.965870][ C0] ? __ia32_sys_clock_settime+0x260/0x260
[ 37.971570][ C0] ? trace_hardirqs_off_caller+0x55/0x1e0
[ 37.977270][ C0] do_syscall_64+0xb7/0x580
[ 37.981757][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 37.987630][ C0] RIP: 0033:0x459879
[ 37.991509][ C0] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
[ 38.011108][ C0] RSP: 002b:00007f7676de5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 38.019518][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879
[ 38.027480][ C0] RDX: 0000000020000081 RSI: 0000000020000080 RDI: 0000000000000005
[ 38.035434][ C0] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
[ 38.043388][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7676de66d4
[ 38.051340][ C0] R13: 00000000004c9a75 R14: 00000000004e1170 R15: 00000000ffffffff
[ 38.059294][ C0] irq event stamp: 67901
[ 38.063526][ C0] hardirqs last enabled at (67900): [] _raw_spin_unlock_irq+0x24/0x30
[ 38.073329][ C0] hardirqs last disabled at (67901): [] _raw_spin_lock_irqsave+0xf/0x50
[ 38.083213][ C0] softirqs last enabled at (64334): [] __do_softirq+0x650/0x912
[ 38.092486][ C0] softirqs last disabled at (67897): [] irq_exit+0x178/0x1a0
[ 38.101635][ C0] ---[ end trace f79379fdabbd8d75 ]---
[ 38.107334][ C0]
[ 38.109645][ C0] ================================
[ 38.114728][ C0] WARNING: inconsistent lock state
[ 38.119819][ C0] 5.3.0-rc7+ #0 Tainted: G W
[ 38.125684][ C0] --------------------------------
[ 38.130770][ C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 38.137596][ C0] syz-executor.3/2747 [HC0[0]:SC1[1]:HE0:SE0] takes:
[ 38.144245][ C0] 00000000681c8c70 (&(&kcov->lock)->rlock){+.?.}, at: kcov_remote_stop+0x72/0x1bc
[ 38.153436][ C0] {SOFTIRQ-ON-W} state was registered at:
[ 38.159150][ C0] lock_acquire+0x127/0x320
[ 38.163721][ C0] _raw_spin_lock+0x27/0x40
[ 38.168286][ C0] kcov_ioctl+0x35/0x430
[ 38.172591][ C0] do_vfs_ioctl+0xd2d/0x1330
[ 38.177262][ C0] ksys_ioctl+0x9b/0xc0
[ 38.181479][ C0] __x64_sys_ioctl+0x6f/0xb0
[ 38.186134][ C0] do_syscall_64+0xb7/0x580
[ 38.190705][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 38.196658][ C0] irq event stamp: 67901
[ 38.200883][ C0] hardirqs last enabled at (67900): [] _raw_spin_unlock_irq+0x24/0x30
[ 38.210661][ C0] hardirqs last disabled at (67901): [] _raw_spin_lock_irqsave+0xf/0x50
[ 38.220528][ C0] softirqs last enabled at (64334): [] __do_softirq+0x650/0x912
[ 38.229787][ C0] softirqs last disabled at (67897): [] irq_exit+0x178/0x1a0
[ 38.238688][ C0]
[ 38.238688][ C0] other info that might help us debug this:
[ 38.246725][ C0] Possible unsafe locking scenario:
[ 38.246725][ C0]
[ 38.254151][ C0] CPU0
[ 38.257408][ C0] ----
[ 38.260668][ C0] lock(&(&kcov->lock)->rlock);
[ 38.265579][ C0]
[ 38.269011][ C0] lock(&(&kcov->lock)->rlock);
[ 38.274116][ C0]
[ 38.274116][ C0] *** DEADLOCK ***
[ 38.274116][ C0]
[ 38.282241][ C0] 4 locks held by syz-executor.3/2747:
[ 38.287675][ C0] #0: 00000000d6cd56da (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe3/0x100
[ 38.296254][ C0] #1: 00000000bf576133 (sb_writers#3){.+.+}, at: vfs_write+0x474/0x5c0
[ 38.304568][ C0] #2: 0000000058b43059 (&sb->s_type->i_mutex_key#9){+.+.}, at: ext4_file_write_iter+0x201/0x1230
[ 38.315134][ C0] #3: 0000000001dd3957 ((&dum_hcd->timer)){+.-.}, at: call_timer_fn+0xcd/0x650
[ 38.324163][ C0]
[ 38.324163][ C0] stack backtrace:
[ 38.330036][ C0] CPU: 0 PID: 2747 Comm: syz-executor.3 Tainted: G W 5.3.0-rc7+ #0
[ 38.339199][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 38.349230][ C0] Call Trace:
[ 38.352496][ C0]
[ 38.355330][ C0] dump_stack+0xca/0x13e
[ 38.359559][ C0] mark_lock+0xc27/0x1130
[ 38.363869][ C0] ? check_usage_backwards+0x2e0/0x2e0
[ 38.369302][ C0] __lock_acquire+0x19a7/0x3b50
[ 38.374131][ C0] ? find_held_lock+0x2d/0x110
[ 38.378870][ C0] ? __usb_hcd_giveback_urb+0x1f2/0x470
[ 38.384392][ C0] ? mark_held_locks+0xe0/0xe0
[ 38.389133][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 38.393980][ C0] ? refcount_sub_and_test_checked+0x130/0x1c0
[ 38.400112][ C0] lock_acquire+0x127/0x320
[ 38.404594][ C0] ? kcov_remote_stop+0x72/0x1bc
[ 38.409512][ C0] _raw_spin_lock+0x27/0x40
[ 38.413990][ C0] ? kcov_remote_stop+0x72/0x1bc
[ 38.418908][ C0] kcov_remote_stop+0x72/0x1bc
[ 38.423653][ C0] ? kcov_remote_start.cold+0xc/0x26
[ 38.428920][ C0] dummy_timer+0x1276/0x301a
[ 38.433505][ C0] ? lock_acquire+0x127/0x320
[ 38.438158][ C0] ? dummy_udc_probe+0x930/0x930
[ 38.443073][ C0] call_timer_fn+0x179/0x650
[ 38.447665][ C0] ? dummy_udc_probe+0x930/0x930
[ 38.452601][ C0] ? msleep_interruptible+0x130/0x130
[ 38.461120][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 38.466237][ C0] ? mark_held_locks+0x9f/0xe0
[ 38.470982][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 38.476301][ C0] ? dummy_udc_probe+0x930/0x930
[ 38.481286][ C0] run_timer_softirq+0x5cc/0x14b0
[ 38.486311][ C0] ? add_timer+0x7a0/0x7a0
[ 38.490713][ C0] ? mark_lock+0xbc/0x1130
[ 38.495246][ C0] __do_softirq+0x221/0x912
[ 38.499863][ C0] irq_exit+0x178/0x1a0
[ 38.504006][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 38.509798][ C0] apic_timer_interrupt+0xf/0x20
[ 38.514724][ C0]
[ 38.517659][ C0] RIP: 0010:lock_release+0x3c5/0x6b0
[ 38.522928][ C0] Code: c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4b 02 00 00 c7 85 44 08 00 00 00 00 00 00 ff 34 24 9d <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 c7 43
[ 38.542518][ C0] RSP: 0018:ffff8881c85bf5a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 38.550910][ C0] RAX: 0000000000000007 RBX: 1ffff110390b7eb7 RCX: 1ffff11039116407
[ 38.558859][ C0] RDX: 0000000000000000 RSI: 1ffff11039116418 RDI: ffff8881c88b2044
[ 38.566816][ C0] RBP: ffff8881c88b1800 R08: 0000000000000000 R09: fffffbfff0f13ce8
[ 38.574767][ C0] R10: fffffbfff0f13ce7 R11: ffffffff8789e73f R12: ffffffff8165dafc
[ 38.582718][ C0] R13: ffff8881c88b2040 R14: ffff8881c88b1800 R15: 0000000000000004
[ 38.590676][ C0] ? get_mem_cgroup_from_page+0xfc/0x3c0
[ 38.596288][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 38.601114][ C0] ? lock_acquire+0x127/0x320
[ 38.605765][ C0] ? get_mem_cgroup_from_page+0x7a/0x3c0
[ 38.611372][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 38.616648][ C0] get_mem_cgroup_from_page+0x11b/0x3c0
[ 38.622192][ C0] ? mem_cgroup_usage_register_event+0x10/0x10
[ 38.628349][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 38.633548][ C0] alloc_page_buffers+0x42/0x590
[ 38.638494][ C0] create_empty_buffers+0x2c/0x640
[ 38.643589][ C0] ? __alloc_pages_nodemask+0x5ae/0x780
[ 38.649130][ C0] create_page_buffers+0x1b7/0x230
[ 38.654221][ C0] __block_write_begin_int+0x1d8/0x19b0
[ 38.659743][ C0] ? ext4_inode_csum_set+0x3a0/0x3a0
[ 38.665007][ C0] ? add_to_page_cache_lru+0x1b6/0x2e0
[ 38.670440][ C0] ? __breadahead+0xf0/0xf0
[ 38.674921][ C0] ext4_da_write_begin+0x521/0xc00
[ 38.680010][ C0] ? ext4_write_begin+0xd50/0xd50
[ 38.685012][ C0] ? csum_and_copy_to_iter+0x1380/0x1380
[ 38.690621][ C0] generic_perform_write+0x20a/0x4f0
[ 38.695887][ C0] ? page_cache_next_miss+0x300/0x300
[ 38.701236][ C0] ? current_time+0x140/0x140
[ 38.705899][ C0] ? generic_write_checks+0x278/0x360
[ 38.711247][ C0] __generic_file_write_iter+0x390/0x5c0
[ 38.716875][ C0] ext4_file_write_iter+0x406/0x1230
[ 38.722141][ C0] ? mark_held_locks+0xe0/0xe0
[ 38.726890][ C0] ? ext4_release_file+0x370/0x370
[ 38.731985][ C0] ? mark_lock+0xbc/0x1130
[ 38.736392][ C0] ? __lock_acquire+0x145e/0x3b50
[ 38.741398][ C0] new_sync_write+0x420/0x650
[ 38.746050][ C0] ? new_sync_read+0x6d0/0x6d0
[ 38.750803][ C0] ? mark_held_locks+0xe0/0xe0
[ 38.755545][ C0] ? mutex_trylock+0x2c0/0x2c0
[ 38.760285][ C0] __vfs_write+0xc9/0x100
[ 38.764608][ C0] vfs_write+0x262/0x5c0
[ 38.768829][ C0] ksys_write+0x127/0x250
[ 38.773136][ C0] ? __ia32_sys_read+0xb0/0xb0
[ 38.777899][ C0] ? __ia32_sys_clock_settime+0x260/0x260
[ 38.783610][ C0] ? trace_hardirqs_off_caller+0x55/0x1e0
[ 38.789303][ C0] do_syscall_64+0xb7/0x580
[ 38.793800][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 38.799669][ C0] RIP: 0033:0x459879
[ 38.803543][ C0] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
[ 38.823127][ C0] RSP: 002b:00007f7676de5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 38.831523][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879
[ 38.839476][ C0] RDX: 0000000020000081 RSI: 0000000020000080 RDI: 0000000000000005
[ 38.847425][ C0] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
[ 38.855374][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7676de66d4
[ 38.863328][ C0] R13: 00000000004c9a75 R14: 00000000004e1170 R15: 00000000ffffffff
[ 38.872039][ C1] Kernel Offset: disabled
[ 38.876470][ C1] Rebooting in 86400 seconds..