Extracting prog: 6m33.42611551s
Minimizing prog: 42m27.549209252s
Simplifying prog options: 0s
Extracting C: 31.368132002s
Simplifying C: 9m27.176685259s


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}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program crashed: WARNING in as102_dvb_dmx_start_feed
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)

program did not crash
testing program (duration=6m0s, {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_usb_connect-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(0xffffffffffffffff, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
testing program (duration=6m0s, {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_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, 0x0, 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(0x0, 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program did not crash
testing program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
simplifying C reproducer
testing compiled C program (duration=6m0s, {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}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
program crashed: WARNING in as102_dvb_dmx_start_feed
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program crashed: WARNING in as102_dvb_dmx_start_feed
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program crashed: lost connection to test machine
ignore low priority crash: lost connection to test machine
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program crashed: WARNING in as102_dvb_dmx_start_feed
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$dvb_demux-ioctl$DVB_DEMUX_DMX_SET_PES_FILTER
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000140)=ANY=[@ANYBLOB="12010000cc1ef420890b070064ef000000010902120001000000000904"], 0x0)
r0 = syz_open_dev$dvb_demux(&(0x7f0000000100), 0xcd79, 0x141000)
ioctl$DVB_DEMUX_DMX_SET_PES_FILTER(r0, 0x40146f2c, &(0x7f0000000040)={0x2, 0x0, 0x1, 0x7, 0x4})

program crashed: WARNING in as102_dvb_dmx_start_feed
validation run: crashed=true
reproducing took 1h4m15.818318246s
repro crashed as (corrupted=false):
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: kernel/locking/mutex.c:625 at __mutex_lock_common kernel/locking/mutex.c:625 [inline], CPU#2: syz.0.442/6492
WARNING: kernel/locking/mutex.c:625 at __mutex_lock+0x944/0x1bd0 kernel/locking/mutex.c:821, CPU#2: syz.0.442/6492
Modules linked in:
CPU: 2 UID: 0 PID: 6492 Comm: syz.0.442 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
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x94b/0x1bd0 kernel/locking/mutex.c:821
Code: 0f b6 14 11 38 d0 7c 08 84 d2 0f 85 c0 10 00 00 44 8b 05 68 85 71 06 45 85 c0 75 13 48 8d 3d 3c 91 74 06 48 c7 c6 60 f6 ef 8b <67> 48 0f b9 3a 90 e9 1b f8 ff ff 4d 8d a7 f0 0a 00 00 4c 89 e7 e8
RSP: 0018:ffffc900043a7a20 EFLAGS: 00010246
RAX: 0000000000000003 RBX: ffff888000e40b30 RCX: 1ffffffff248b97c
RDX: 0000000000000000 RSI: ffffffff8beff660 RDI: ffffffff9248d7c0
RBP: ffffc900043a7b90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000200000000
FS:  0000000000000000(0000) GS:ffff88809594a000(0063) knlGS:0000000056718480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000033963fff CR3: 0000000040bcb000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 as102_dvb_dmx_start_feed+0x7d/0x2e0 drivers/media/usb/as102/as102_drv.c:139
 dmx_ts_feed_start_filtering+0xf6/0x220 drivers/media/dvb-core/dvb_demux.c:747
 dvb_dmxdev_start_feed+0x273/0x3f0 drivers/media/dvb-core/dmxdev.c:658
 dvb_dmxdev_filter_start+0x1b6/0xdd0 drivers/media/dvb-core/dmxdev.c:769
 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:985 [inline]
 dvb_demux_do_ioctl+0xe64/0x1200 drivers/media/dvb-core/dmxdev.c:1099
 dvb_usercopy+0x167/0x340 drivers/media/dvb-core/dvbdev.c:996
 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1208
 __do_compat_sys_ioctl fs/ioctl.c:695 [inline]
 __se_compat_sys_ioctl fs/ioctl.c:638 [inline]
 __ia32_compat_sys_ioctl+0x2cf/0x360 fs/ioctl.c:638
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf747efec
Code: Unable to access opcode bytes at 0xf747efc2.
RSP: 002b:00000000fffa0a1c EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000040146f2c
RDX: 0000000080000040 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f b6 14 11          	movzbl (%rcx,%rdx,1),%edx
   4:	38 d0                	cmp    %dl,%al
   6:	7c 08                	jl     0x10
   8:	84 d2                	test   %dl,%dl
   a:	0f 85 c0 10 00 00    	jne    0x10d0
  10:	44 8b 05 68 85 71 06 	mov    0x6718568(%rip),%r8d        # 0x671857f
  17:	45 85 c0             	test   %r8d,%r8d
  1a:	75 13                	jne    0x2f
  1c:	48 8d 3d 3c 91 74 06 	lea    0x674913c(%rip),%rdi        # 0x674915f
  23:	48 c7 c6 60 f6 ef 8b 	mov    $0xffffffff8beff660,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	90                   	nop
  30:	e9 1b f8 ff ff       	jmp    0xfffff850
  35:	4d 8d a7 f0 0a 00 00 	lea    0xaf0(%r15),%r12
  3c:	4c 89 e7             	mov    %r12,%rdi
  3f:	e8                   	.byte 0xe8

final repro crashed as (corrupted=false):
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: kernel/locking/mutex.c:625 at __mutex_lock_common kernel/locking/mutex.c:625 [inline], CPU#2: syz.0.442/6492
WARNING: kernel/locking/mutex.c:625 at __mutex_lock+0x944/0x1bd0 kernel/locking/mutex.c:821, CPU#2: syz.0.442/6492
Modules linked in:
CPU: 2 UID: 0 PID: 6492 Comm: syz.0.442 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
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x94b/0x1bd0 kernel/locking/mutex.c:821
Code: 0f b6 14 11 38 d0 7c 08 84 d2 0f 85 c0 10 00 00 44 8b 05 68 85 71 06 45 85 c0 75 13 48 8d 3d 3c 91 74 06 48 c7 c6 60 f6 ef 8b <67> 48 0f b9 3a 90 e9 1b f8 ff ff 4d 8d a7 f0 0a 00 00 4c 89 e7 e8
RSP: 0018:ffffc900043a7a20 EFLAGS: 00010246
RAX: 0000000000000003 RBX: ffff888000e40b30 RCX: 1ffffffff248b97c
RDX: 0000000000000000 RSI: ffffffff8beff660 RDI: ffffffff9248d7c0
RBP: ffffc900043a7b90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000200000000
FS:  0000000000000000(0000) GS:ffff88809594a000(0063) knlGS:0000000056718480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000033963fff CR3: 0000000040bcb000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 as102_dvb_dmx_start_feed+0x7d/0x2e0 drivers/media/usb/as102/as102_drv.c:139
 dmx_ts_feed_start_filtering+0xf6/0x220 drivers/media/dvb-core/dvb_demux.c:747
 dvb_dmxdev_start_feed+0x273/0x3f0 drivers/media/dvb-core/dmxdev.c:658
 dvb_dmxdev_filter_start+0x1b6/0xdd0 drivers/media/dvb-core/dmxdev.c:769
 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:985 [inline]
 dvb_demux_do_ioctl+0xe64/0x1200 drivers/media/dvb-core/dmxdev.c:1099
 dvb_usercopy+0x167/0x340 drivers/media/dvb-core/dvbdev.c:996
 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1208
 __do_compat_sys_ioctl fs/ioctl.c:695 [inline]
 __se_compat_sys_ioctl fs/ioctl.c:638 [inline]
 __ia32_compat_sys_ioctl+0x2cf/0x360 fs/ioctl.c:638
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf747efec
Code: Unable to access opcode bytes at 0xf747efc2.
RSP: 002b:00000000fffa0a1c EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000040146f2c
RDX: 0000000080000040 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f b6 14 11          	movzbl (%rcx,%rdx,1),%edx
   4:	38 d0                	cmp    %dl,%al
   6:	7c 08                	jl     0x10
   8:	84 d2                	test   %dl,%dl
   a:	0f 85 c0 10 00 00    	jne    0x10d0
  10:	44 8b 05 68 85 71 06 	mov    0x6718568(%rip),%r8d        # 0x671857f
  17:	45 85 c0             	test   %r8d,%r8d
  1a:	75 13                	jne    0x2f
  1c:	48 8d 3d 3c 91 74 06 	lea    0x674913c(%rip),%rdi        # 0x674915f
  23:	48 c7 c6 60 f6 ef 8b 	mov    $0xffffffff8beff660,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	90                   	nop
  30:	e9 1b f8 ff ff       	jmp    0xfffff850
  35:	4d 8d a7 f0 0a 00 00 	lea    0xaf0(%r15),%r12
  3c:	4c 89 e7             	mov    %r12,%rdi
  3f:	e8                   	.byte 0xe8