Extracting prog: 7m10.273965459s
Minimizing prog: 1h35m22.700204322s
Simplifying prog options: 9m10.152353802s
Extracting C: 4m34.909208309s
Simplifying C: 27m26.331813394s


extracting reproducer from 1 programs
testing a last program of every proc
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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-mmap-prctl$PR_SCHED_CORE-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
single: successfully extracted reproducer
found reproducer with 14 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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-mmap-prctl$PR_SCHED_CORE-syz_open_dev$usbfs
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-mmap-prctl$PR_SCHED_CORE-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
ioctl$USBDEVFS_IOCTL(0xffffffffffffffff, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-mmap-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r1 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r1, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
syz_usb_control_io$rtl8150(0xffffffffffffffff, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r1 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r1, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
syz_usb_control_io$printer(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$printer(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$printer(0xffffffffffffffff, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r0 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r0, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r1 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r1, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(0x0, 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(0x0, 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
VM was preempted during C execution: failed to run command in VM: instance is preempted, retrying
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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
simplifying C reproducer
testing compiled C 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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
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: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}}): syz_usb_connect-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in i2c_tiny_usb_disconnect
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
program crashed: INFO: task hung in usbdev_open
a never seen crash title: INFO: task hung in usbdev_open, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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_usb_control_io$printer-syz_usb_control_io$printer-syz_usb_control_io$printer-syz_open_dev$I2C-syz_usb_connect$rtl8150-syz_usb_control_io$rtl8150-read$FUSE-sendmsg$RDMA_NLDEV_CMD_NEWLINK-sched_setscheduler-syz_open_dev$usbfs-ioctl$USBDEVFS_IOCTL
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000440)=ANY=[@ANYBLOB="120100002eab5a40401c3405cc6d010203010902120001000000000904"], 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_open_dev$I2C(&(0x7f00000001c0), 0x1, 0x402)
r1 = syz_usb_connect$rtl8150(0x5, 0x0, 0x0, 0x0)
syz_usb_control_io$rtl8150(r1, 0x0, 0x0)
read$FUSE(0xffffffffffffffff, 0x0, 0x0)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(0xffffffffffffffff, 0x0, 0x2400c000)
sched_setscheduler(0x0, 0x2, 0x0)
r2 = syz_open_dev$usbfs(&(0x7f0000000480), 0x73, 0x188341)
ioctl$USBDEVFS_IOCTL(r2, 0xc0105512, 0x0)

program crashed: INFO: task hung in i2c_tiny_usb_disconnect
validation run: crashed=true
reproducing took 3h0m5.117258713s
repro crashed as (corrupted=false):
INFO: task kworker/1:4:5789 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4     state:D stack:22144 pid:5789  tgid:5789  ppid:2      task_flags:0x4288060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0xc0/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2ca/0x5e0 kernel/sched/completion.c:153
 i2c_del_adapter+0x292/0x440 drivers/i2c/i2c-core-base.c:1847
 i2c_tiny_usb_disconnect+0x49/0xd0 drivers/i2c/busses/i2c-tiny-usb.c:282
 usb_unbind_interface+0x295/0x9f0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x4f5/0x880 drivers/base/dd.c:1372
 bus_remove_device+0x444/0x560 drivers/base/bus.c:664
 device_del+0x524/0x8f0 drivers/base/core.c:3965
 usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1478
 usb_disconnect+0x346/0x9a0 drivers/usb/core/hub.c:2350
 hub_port_connect drivers/usb/core/hub.c:5420 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x1bbb/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz.1.43:6042 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.43        state:D stack:27752 pid:6042  tgid:6042  ppid:5799   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe3f775e98e
RSP: 002b:00007ffe05b13c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005555881c9500 RCX: 00007fe3f775e98e
RDX: 0000000000188301 RSI: 00007ffe05b13ce0 RDI: ffffffffffffff9c
RBP: 00007ffe05b13ce0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fe3f7a25fac R14: 00007fe3f7a25fa0 R15: 00007fe3f7a25fa0
 </TASK>
INFO: task syz.3.44:6043 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.44        state:D stack:27768 pid:6043  tgid:6043  ppid:5805   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24c915e98e
RSP: 002b:00007fffe9340cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055555a93f500 RCX: 00007f24c915e98e
RDX: 0000000000188301 RSI: 00007fffe9340da0 RDI: ffffffffffffff9c
RBP: 00007fffe9340da0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f24c9425fac R14: 00007f24c9425fa0 R15: 00007f24c9425fa0
 </TASK>
INFO: task syz.2.45:6044 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.45        state:D stack:26936 pid:6044  tgid:6044  ppid:5801   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa05455e98e
RSP: 002b:00007ffcac53c878 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055558f391500 RCX: 00007fa05455e98e
RDX: 0000000000188301 RSI: 00007ffcac53c950 RDI: ffffffffffffff9c
RBP: 00007ffcac53c950 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fa054825fac R14: 00007fa054825fa0 R15: 00007fa054825fa0
 </TASK>
INFO: task syz.0.46:6045 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.46        state:D stack:27624 pid:6045  tgid:6045  ppid:5795   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf0835e98e
RSP: 002b:00007ffce98cdf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055558adfa500 RCX: 00007faf0835e98e
RDX: 0000000000188301 RSI: 00007ffce98cdff0 RDI: ffffffffffffff9c
RBP: 00007ffce98cdff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007faf08625fac R14: 00007faf08625fa0 R15: 00007faf08625fa0
 </TASK>

Showing all locks held in the system:
locks held by pr/ttyS0/16: 1, last CPU#1:
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:314 [inline]
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:439 [inline]
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 kernel/printk/printk.c:291
locks held by khungtaskd/32: 1, last CPU#1:
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871
locks held by kworker/u8:7/1037: 3, last CPU#0:
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff888033477258 (&devlink->lock_key#4){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xb40 drivers/net/netdevsim/dev.c:834
locks held by klogd/4975: 2, last CPU#0:
 #0: ffffffff8eeac430 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:198 [inline]
 #0: ffffffff8eeac430 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_read_lock+0x27/0x60 include/linux/srcu.h:305
 #1: ffffffff8f58c080 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_objects_fill_pool lib/debugobjects.c:779 [inline]
 #1: ffffffff8f58c080 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_object_activate+0x364/0x420 lib/debugobjects.c:869
locks held by getty/5373: 2, on CPU#1:
 #0: ffff88803517d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 drivers/tty/n_tty.c:2211
locks held by udevd/5688: 4, on CPU#1:
 #0: ffff88803308a638 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xa4/0xca0 fs/seq_file.c:183
 #1: ffff888029f42880 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x5d/0x420 fs/kernfs/file.c:165
 #2: ffff888033ae10f8 (kn->active#33){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:73 [inline]
 #2: ffff888033ae10f8 (kn->active#33){.+.+}-{0:0}, at: kernfs_seq_start+0xb2/0x420 fs/kernfs/file.c:166
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: device_lock_interruptible include/linux/device.h:1109 [inline]
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: serial_show+0x26/0xa0 drivers/usb/core/sysfs.c:143
locks held by kworker/1:4/5789: 5, on CPU#1:
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5912
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0xfc/0x9a0 drivers/usb/core/hub.c:2341
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb9/0x880 drivers/base/dd.c:1369
locks held by kworker/u8:2/5813: 3, last CPU#0:
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff88804aa18258 (&devlink->lock_key#30){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xb40 drivers/net/netdevsim/dev.c:834
locks held by syz.1.43/6042: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.44/6043: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.45/6044: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.46/6045: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.53/6214: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.54/6215: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.52/6216: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.55/6217: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.64/6375: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.67/6376: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.65/6377: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.1.66/6378: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.76/6521: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.77/6535: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.78/6544: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.79/6545: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.88/6688: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.89/6705: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.90/6710: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.91/6711: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.1.99/6816: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.101/6845: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.102/6874: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.103/6875: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.111/6959: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.112/7038: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.114/7039: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.115/7040: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123
 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66
 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xfd7/0x1030 kernel/hung_task.c:561
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 16 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__is_kernel_text kernel/extable.c:95 [inline]
RIP: 0010:is_kernel_text include/linux/kallsyms.h:29 [inline]
RIP: 0010:core_kernel_text kernel/extable.c:68 [inline]
RIP: 0010:kernel_text_address+0x5/0xe0 kernel/extable.c:99
Code: 7e 06 92 0f 92 c2 20 ca 08 c2 0f b6 c2 5b e9 d2 fd 57 0a cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 <41> 56 53 48 81 ff 00 00 00 81 0f 93 c0 48 81 ff 28 c8 e9 8b 0f 92
RSP: 0018:ffffc90000a188e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8a9224ca RCX: 0000000000000101
RDX: ffffc90000a18901 RSI: ffffffff8e69d2d0 RDI: ffffffff8a9224ca
RBP: ffffc90000a189b0 R08: ffffc90000a18d18 R09: 0000000000000000
R10: ffffc90000a18978 R11: fffff52000143131 R12: ffff88801e2a0000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200014312e
FS:  0000000000000000(0000) GS:ffff888124dcd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055669cd3f660 CR3: 000000007e2a0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:385
 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6508 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6801
 ip_dst_metrics_put include/net/ip.h:577 [inline]
 ip6_dst_destroy+0x9a/0x380 net/ipv6/route.c:360
 dst_destroy+0xcf/0x340 net/core/dst.c:114
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:221
Code: f7 e8 4d 51 bb f5 f7 c3 00 02 00 00 74 05 e8 f0 9b e7 f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> b4 5e ac f5 65 48 8b 05 ec a0 ac 07 48 85 c0 74 18 5b 41 5e c3
RSP: 0018:ffffc90000157ca8 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000206 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e414afd RDI: 0000000000000001
RBP: ffffc90000157e18 R08: ffffffff907a507f R09: 1ffffffff20f4a0f
R10: dffffc0000000000 R11: fffffbfff20f4a10 R12: 0000000000000002
R13: ffff88801e2a0000 R14: ffffffff9ad3e240 R15: dffffc0000000000
 nbcon_emit_one kernel/printk/nbcon.c:1165 [inline]
 nbcon_kthread_func+0x6c4/0x880 kernel/printk/nbcon.c:1271
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 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):
INFO: task kworker/1:4:5789 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4     state:D stack:22144 pid:5789  tgid:5789  ppid:2      task_flags:0x4288060 flags:0x00080000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0xc0/0x2c0 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common kernel/sched/completion.c:121 [inline]
 wait_for_common kernel/sched/completion.c:132 [inline]
 wait_for_completion+0x2ca/0x5e0 kernel/sched/completion.c:153
 i2c_del_adapter+0x292/0x440 drivers/i2c/i2c-core-base.c:1847
 i2c_tiny_usb_disconnect+0x49/0xd0 drivers/i2c/busses/i2c-tiny-usb.c:282
 usb_unbind_interface+0x295/0x9f0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x4f5/0x880 drivers/base/dd.c:1372
 bus_remove_device+0x444/0x560 drivers/base/bus.c:664
 device_del+0x524/0x8f0 drivers/base/core.c:3965
 usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1478
 usb_disconnect+0x346/0x9a0 drivers/usb/core/hub.c:2350
 hub_port_connect drivers/usb/core/hub.c:5420 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x1bbb/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz.1.43:6042 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.43        state:D stack:27752 pid:6042  tgid:6042  ppid:5799   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe3f775e98e
RSP: 002b:00007ffe05b13c08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005555881c9500 RCX: 00007fe3f775e98e
RDX: 0000000000188301 RSI: 00007ffe05b13ce0 RDI: ffffffffffffff9c
RBP: 00007ffe05b13ce0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fe3f7a25fac R14: 00007fe3f7a25fa0 R15: 00007fe3f7a25fa0
 </TASK>
INFO: task syz.3.44:6043 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.44        state:D stack:27768 pid:6043  tgid:6043  ppid:5805   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24c915e98e
RSP: 002b:00007fffe9340cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055555a93f500 RCX: 00007f24c915e98e
RDX: 0000000000188301 RSI: 00007fffe9340da0 RDI: ffffffffffffff9c
RBP: 00007fffe9340da0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f24c9425fac R14: 00007f24c9425fa0 R15: 00007f24c9425fa0
 </TASK>
INFO: task syz.2.45:6044 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.45        state:D stack:26936 pid:6044  tgid:6044  ppid:5801   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa05455e98e
RSP: 002b:00007ffcac53c878 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055558f391500 RCX: 00007fa05455e98e
RDX: 0000000000188301 RSI: 00007ffcac53c950 RDI: ffffffffffffff9c
RBP: 00007ffcac53c950 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fa054825fac R14: 00007fa054825fa0 R15: 00007fa054825fa0
 </TASK>
INFO: task syz.0.46:6045 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.46        state:D stack:27624 pid:6045  tgid:6045  ppid:5795   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7433
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
 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_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf0835e98e
RSP: 002b:00007ffce98cdf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055558adfa500 RCX: 00007faf0835e98e
RDX: 0000000000188301 RSI: 00007ffce98cdff0 RDI: ffffffffffffff9c
RBP: 00007ffce98cdff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007faf08625fac R14: 00007faf08625fa0 R15: 00007faf08625fa0
 </TASK>

Showing all locks held in the system:
locks held by pr/ttyS0/16: 1, last CPU#1:
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:314 [inline]
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:439 [inline]
 #0: ffffffff8ec36538 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 kernel/printk/printk.c:291
locks held by khungtaskd/32: 1, last CPU#1:
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871
locks held by kworker/u8:7/1037: 3, last CPU#0:
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc90004f07c40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff888033477258 (&devlink->lock_key#4){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xb40 drivers/net/netdevsim/dev.c:834
locks held by klogd/4975: 2, last CPU#0:
 #0: ffffffff8eeac430 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:198 [inline]
 #0: ffffffff8eeac430 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_read_lock+0x27/0x60 include/linux/srcu.h:305
 #1: ffffffff8f58c080 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_objects_fill_pool lib/debugobjects.c:779 [inline]
 #1: ffffffff8f58c080 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_object_activate+0x364/0x420 lib/debugobjects.c:869
locks held by getty/5373: 2, on CPU#1:
 #0: ffff88803517d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 drivers/tty/n_tty.c:2211
locks held by udevd/5688: 4, on CPU#1:
 #0: ffff88803308a638 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xa4/0xca0 fs/seq_file.c:183
 #1: ffff888029f42880 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x5d/0x420 fs/kernfs/file.c:165
 #2: ffff888033ae10f8 (kn->active#33){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:73 [inline]
 #2: ffff888033ae10f8 (kn->active#33){.+.+}-{0:0}, at: kernfs_seq_start+0xb2/0x420 fs/kernfs/file.c:166
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: device_lock_interruptible include/linux/device.h:1109 [inline]
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: serial_show+0x26/0xa0 drivers/usb/core/sysfs.c:143
locks held by kworker/1:4/5789: 5, on CPU#1:
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff888022e99540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc900039dfc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5912
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888026ec71d8 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0xfc/0x9a0 drivers/usb/core/hub.c:2341
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
 #4: ffff88802bf381a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb9/0x880 drivers/base/dd.c:1369
locks held by kworker/u8:2/5813: 3, last CPU#0:
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline]
 #1: ffffc900039afc40 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479
 #2: ffff88804aa18258 (&devlink->lock_key#30){+.+.}-{4:4}, at: nsim_dev_trap_report_work+0x57/0xb40 drivers/net/netdevsim/dev.c:834
locks held by syz.1.43/6042: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.44/6043: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.45/6044: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.46/6045: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.53/6214: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.54/6215: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.52/6216: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.55/6217: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.64/6375: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.67/6376: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.65/6377: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.1.66/6378: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.76/6521: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.77/6535: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.78/6544: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.79/6545: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.88/6688: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.89/6705: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.2.90/6710: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.91/6711: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.1.99/6816: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.3.101/6845: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.6.102/6874: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.5.103/6875: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.7.111/6959: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.8.112/7038: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.9.114/7039: 1, on CPU#0:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054
locks held by syz.0.115/7040: 1, on CPU#1:
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #0: ffff88802a9fa1d8 (&dev->mutex){....}-{4:4}, at: usbdev_open+0x151/0x770 drivers/usb/core/devio.c:1054

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123
 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66
 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xfd7/0x1030 kernel/hung_task.c:561
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 16 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__is_kernel_text kernel/extable.c:95 [inline]
RIP: 0010:is_kernel_text include/linux/kallsyms.h:29 [inline]
RIP: 0010:core_kernel_text kernel/extable.c:68 [inline]
RIP: 0010:kernel_text_address+0x5/0xe0 kernel/extable.c:99
Code: 7e 06 92 0f 92 c2 20 ca 08 c2 0f b6 c2 5b e9 d2 fd 57 0a cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 <41> 56 53 48 81 ff 00 00 00 81 0f 93 c0 48 81 ff 28 c8 e9 8b 0f 92
RSP: 0018:ffffc90000a188e8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8a9224ca RCX: 0000000000000101
RDX: ffffc90000a18901 RSI: ffffffff8e69d2d0 RDI: ffffffff8a9224ca
RBP: ffffc90000a189b0 R08: ffffc90000a18d18 R09: 0000000000000000
R10: ffffc90000a18978 R11: fffff52000143131 R12: ffff88801e2a0000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200014312e
FS:  0000000000000000(0000) GS:ffff888124dcd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055669cd3f660 CR3: 000000007e2a0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:385
 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6508 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6801
 ip_dst_metrics_put include/net/ip.h:577 [inline]
 ip6_dst_destroy+0x9a/0x380 net/ipv6/route.c:360
 dst_destroy+0xcf/0x340 net/core/dst.c:114
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:221
Code: f7 e8 4d 51 bb f5 f7 c3 00 02 00 00 74 05 e8 f0 9b e7 f5 9c 58 a9 00 02 00 00 75 29 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> b4 5e ac f5 65 48 8b 05 ec a0 ac 07 48 85 c0 74 18 5b 41 5e c3
RSP: 0018:ffffc90000157ca8 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000206 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e414afd RDI: 0000000000000001
RBP: ffffc90000157e18 R08: ffffffff907a507f R09: 1ffffffff20f4a0f
R10: dffffc0000000000 R11: fffffbfff20f4a10 R12: 0000000000000002
R13: ffff88801e2a0000 R14: ffffffff9ad3e240 R15: dffffc0000000000
 nbcon_emit_one kernel/printk/nbcon.c:1165 [inline]
 nbcon_kthread_func+0x6c4/0x880 kernel/printk/nbcon.c:1271
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>