Extracting prog: 3m50.696286235s
Minimizing prog: 54m42.079326537s
Simplifying prog options: 18m23.565520429s
Extracting C: 37.828262672s
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:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend-socket$inet_sctp-getsockopt$inet_sctp_SCTP_MAX_BURST-io_uring_enter
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, 0x0, 0x0)
io_uring_enter(0xffffffffffffffff, 0x2219, 0x7721, 0x69, 0x0, 0x0)

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:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend-socket$inet_sctp-getsockopt$inet_sctp_SCTP_MAX_BURST-io_uring_enter
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, 0x0, 0x0)
io_uring_enter(0xffffffffffffffff, 0x2219, 0x7721, 0x69, 0x0, 0x0)

program crashed: WARNING in as102_stream_ctrl
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend-socket$inet_sctp-getsockopt$inet_sctp_SCTP_MAX_BURST
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)
r1 = socket$inet_sctp(0x2, 0x1, 0x84)
getsockopt$inet_sctp_SCTP_MAX_BURST(r1, 0x84, 0x14, 0x0, 0x0)

program crashed: WARNING in as102_stream_ctrl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend-socket$inet_sctp
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)
socket$inet_sctp(0x2, 0x1, 0x84)

program crashed: WARNING in as102_stream_ctrl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program crashed: WARNING in as102_stream_ctrl
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
syz_usb_disconnect(0xffffffffffffffff)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, 0x0, 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(0x0, 0x1, 0x802)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
program did not crash
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program crashed: WARNING in as102_stream_ctrl
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program crashed: WARNING in as102_stream_ctrl
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program crashed: WARNING in as102_stream_ctrl
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): ioctl$UFFDIO_API-syz_usb_connect-syz_usb_disconnect-syz_open_dev$dvb_frontend
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0)
syz_usb_disconnect(r0)
syz_open_dev$dvb_frontend(&(0x7f0000000100), 0x1, 0x802)

program crashed: WARNING in as102_stream_ctrl
validation run: crashed=true
reproducing took 1h24m27.980683159s
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#0: syz.2.467/6354
WARNING: kernel/locking/mutex.c:625 at __mutex_lock+0x12e6/0x1550 kernel/locking/mutex.c:821, CPU#0: syz.2.467/6354
Modules linked in:
CPU: 0 UID: 0 PID: 6354 Comm: syz.2.467 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x12ed/0x1550 kernel/locking/mutex.c:821
Code: 0b 58 90 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 47 02 00 00 83 3d a7 99 80 04 00 75 13 48 8d 3d 6a e9 83 04 48 c7 c6 60 fc ec 8b <67> 48 0f b9 3a 90 e9 67 ee ff ff 90 0f 0b 90 e9 3a f2 ff ff 90 0f
RSP: 0000:ffffc9000306f680 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88802706be80
RDX: 0000000000000000 RSI: ffffffff8becfc60 RDI: ffffffff905b5b10
RBP: ffffc9000306f820 R08: ffffffff90580b43 R09: 1ffffffff20b0168
R10: dffffc0000000000 R11: fffffbfff20b0169 R12: ffff88802ad90010
R13: 0000000000000000 R14: 1ffff9200060dee4 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124f36000(0063) knlGS:0000000056771480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7218b50 CR3: 000000007882e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 as102_stream_ctrl+0x27/0xc0 drivers/media/usb/as102/as102_drv.c:259
 __dvb_frontend_open+0x2e9/0xc40 drivers/media/dvb-core/dvb_frontend.c:2772
 dvb_device_open+0x24f/0x340 drivers/media/dvb-core/dvbdev.c:109
 chrdev_open+0x4d9/0x600 fs/char_dev.c:411
 do_dentry_open+0x816/0x1380 fs/open.c:996
 vfs_open+0x3b/0x340 fs/open.c:1101
 do_open fs/namei.c:4837 [inline]
 path_openat+0x1443/0x1d60 fs/namei.c:5000
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_compat_sys_openat fs/open.c:1485 [inline]
 __se_compat_sys_openat fs/open.c:1483 [inline]
 __ia32_compat_sys_openat+0x131/0x160 fs/open.c:1483
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 do_int80_emulation+0x198/0x500 arch/x86/entry/syscall_32.c:166
 asm_int80_emulation+0x1a/0x20 arch/x86/include/asm/idtentry.h:598
RIP: 0023:0xf71874eb
Code: 57 56 53 8b 44 24 14 f6 00 08 75 23 8b 44 24 18 8b 5c 24 1c 8b 4c 24 20 8b 54 24 24 8b 74 24 28 8b 7c 24 2c 8b 6c 24 30 cd 80 <5b> 5e 5f 5d c3 5b 5e 5f 5d e9 f7 a1 ff ff 66 90 66 90 66 90 90 53
RSP: 002b:00000000f756f58c EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f756f650
RDX: 0000000000000802 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	0b 58 90             	or     -0x70(%rax),%ebx
   3:	48 c1 e8 03          	shr    $0x3,%rax
   7:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax
   b:	84 c0                	test   %al,%al
   d:	0f 85 47 02 00 00    	jne    0x25a
  13:	83 3d a7 99 80 04 00 	cmpl   $0x0,0x48099a7(%rip)        # 0x48099c1
  1a:	75 13                	jne    0x2f
  1c:	48 8d 3d 6a e9 83 04 	lea    0x483e96a(%rip),%rdi        # 0x483e98d
  23:	48 c7 c6 60 fc ec 8b 	mov    $0xffffffff8becfc60,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	90                   	nop
  30:	e9 67 ee ff ff       	jmp    0xffffee9c
  35:	90                   	nop
  36:	0f 0b                	ud2
  38:	90                   	nop
  39:	e9 3a f2 ff ff       	jmp    0xfffff278
  3e:	90                   	nop
  3f:	0f                   	.byte 0xf

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#0: syz.2.467/6354
WARNING: kernel/locking/mutex.c:625 at __mutex_lock+0x12e6/0x1550 kernel/locking/mutex.c:821, CPU#0: syz.2.467/6354
Modules linked in:
CPU: 0 UID: 0 PID: 6354 Comm: syz.2.467 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:625 [inline]
RIP: 0010:__mutex_lock+0x12ed/0x1550 kernel/locking/mutex.c:821
Code: 0b 58 90 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 47 02 00 00 83 3d a7 99 80 04 00 75 13 48 8d 3d 6a e9 83 04 48 c7 c6 60 fc ec 8b <67> 48 0f b9 3a 90 e9 67 ee ff ff 90 0f 0b 90 e9 3a f2 ff ff 90 0f
RSP: 0000:ffffc9000306f680 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88802706be80
RDX: 0000000000000000 RSI: ffffffff8becfc60 RDI: ffffffff905b5b10
RBP: ffffc9000306f820 R08: ffffffff90580b43 R09: 1ffffffff20b0168
R10: dffffc0000000000 R11: fffffbfff20b0169 R12: ffff88802ad90010
R13: 0000000000000000 R14: 1ffff9200060dee4 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124f36000(0063) knlGS:0000000056771480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7218b50 CR3: 000000007882e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 as102_stream_ctrl+0x27/0xc0 drivers/media/usb/as102/as102_drv.c:259
 __dvb_frontend_open+0x2e9/0xc40 drivers/media/dvb-core/dvb_frontend.c:2772
 dvb_device_open+0x24f/0x340 drivers/media/dvb-core/dvbdev.c:109
 chrdev_open+0x4d9/0x600 fs/char_dev.c:411
 do_dentry_open+0x816/0x1380 fs/open.c:996
 vfs_open+0x3b/0x340 fs/open.c:1101
 do_open fs/namei.c:4837 [inline]
 path_openat+0x1443/0x1d60 fs/namei.c:5000
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_compat_sys_openat fs/open.c:1485 [inline]
 __se_compat_sys_openat fs/open.c:1483 [inline]
 __ia32_compat_sys_openat+0x131/0x160 fs/open.c:1483
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 do_int80_emulation+0x198/0x500 arch/x86/entry/syscall_32.c:166
 asm_int80_emulation+0x1a/0x20 arch/x86/include/asm/idtentry.h:598
RIP: 0023:0xf71874eb
Code: 57 56 53 8b 44 24 14 f6 00 08 75 23 8b 44 24 18 8b 5c 24 1c 8b 4c 24 20 8b 54 24 24 8b 74 24 28 8b 7c 24 2c 8b 6c 24 30 cd 80 <5b> 5e 5f 5d c3 5b 5e 5f 5d e9 f7 a1 ff ff 66 90 66 90 66 90 90 53
RSP: 002b:00000000f756f58c EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f756f650
RDX: 0000000000000802 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	0b 58 90             	or     -0x70(%rax),%ebx
   3:	48 c1 e8 03          	shr    $0x3,%rax
   7:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax
   b:	84 c0                	test   %al,%al
   d:	0f 85 47 02 00 00    	jne    0x25a
  13:	83 3d a7 99 80 04 00 	cmpl   $0x0,0x48099a7(%rip)        # 0x48099c1
  1a:	75 13                	jne    0x2f
  1c:	48 8d 3d 6a e9 83 04 	lea    0x483e96a(%rip),%rdi        # 0x483e98d
  23:	48 c7 c6 60 fc ec 8b 	mov    $0xffffffff8becfc60,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	90                   	nop
  30:	e9 67 ee ff ff       	jmp    0xffffee9c
  35:	90                   	nop
  36:	0f 0b                	ud2
  38:	90                   	nop
  39:	e9 3a f2 ff ff       	jmp    0xfffff278
  3e:	90                   	nop
  3f:	0f                   	.byte 0xf