Extracting prog: 5m5.702522629s
Minimizing prog: 55m18.652612317s
Simplifying prog options: 0s
Extracting C: 3m11.796372927s
Simplifying C: 24m32.887751376s


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: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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program crashed: INFO: task hung in do_get_write_access
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$eJzs3c9rm+cdAPCvJNuJHW/5sTGSHJZABtkPYvkHI/Y2GDltOwTGAjsNMs9WvMyyZSw5i00OznbLYYexsUHpoff+Bb00p+ZSem7pqVB6KClt6kJLaVHRK8k/Jdt1bCv2+/mArOd9JL3f57H4Pnr1vO+rN4DUulz7k4noj4i3IuJ0fXHjEy7X71aePZio3TJRrd76OJM8r7bcfGrzdaciIhcRJyPiD7+J+Etma9zy4tL0eLFYmG8s5yszc/ny4tK1uzPjU4WpwuzQ6PWxsdHBkeGxPfbs6y01j/71t0c3X/tdz6uf//Ppk3+/8XqtWf2Nx9b3Yz/Vu94dZ9fVdUXErw4iWAfkGv3p7XRD2JPa+/e9iLiS5P/pyCXvJpAG1Wq1+lX1RLuHl6vAsZVNtoEz2YGIqJez2YGB+jb896MvWyyVKz+7U1qYnaxvK5+J7uydu8XCYOO7wpnoztSWh5Ly2vLwpuWRiGQb+D+53mR5YKJUnDzcoQ7Y5NSm/P8sV89/ICV85Yf0kv+QXvIf0kv+Q3rJf0gv+Q/p1ZUcqgukkc9/SC/5D+kl/yG9tsv/nkNsB3Cofn/zZu1WrZ//no3Je4sL06V71yYL5emBmYWJgYnS/NzAVKk0lZyzM7PT+oql0tzQz2Phfr5SKFfy5cWl2zOlhdnK7eS8/tuF7sPpFrALZy89ficTEcu/6E1use4jX67C8VatZqLT5yADnZHr9AAEdIypf0ivb/Edv+2PhAFHW4uf6N2gzQHCv465AwkHHIJspxsAdMzVC8+x/6/97wYDR4D5f0gv8/+QXpu38W0PQPrscf4/dpr/dwwxvLjM/0N69be5/td31l27azAivhsRb+e6TzSv9QUcB9kPM43t/6unf9S/+dGezBfJlEBPRPz9pVv/uz9eqcwP1eo/Wa2v/L9RP9yJ9gO71czTZh4DAOm18uzBRPN2mHG7bkRvo7gpfldjbvJksg+hbyWz4ViFzD4du7D8MCLOt+p/pnG98/qej76V3Jb45xr3mfoqkvZ2JddNP8j4vauvvbAu/g/Xxb/43P8VSIfHNyJisFX+ZZOcjtX82zj+9O/Tvs2PbtSTtlX85viXazP+XdqwpuW2Mf768j8+aBv/YcTF1fi1Hq2NP12N+JkW8Wttu7rLPj790x9/0O6x6iv19bQa/5pqpXxlZi5fXly6lvyO3FRhdmj0+tjY6ODI8Fg+maPON2eqt/rl+TefbNf/vjbx6/19t2X/a3U/2VXvt9+zXov/4yut3/9zyX3r/3/tU+CnrVf55eaKT4ff//N28Sfb9D+7Tfxa3ci2PVtT/u9vnSgAAC+Q8uLS9HixWJjfa6EnIp7j5TsU3juwNR/FQu+L0QyFNBR2Gjnaf98Ejoa1pO90SwAAAAAAAAAAAIDdansYcPPk1n04nLjDXQQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAOBa+CQAA//9Z+M2y")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
pwrite64(0xffffffffffffffff, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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}}): mount-openat-pwrite64
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, 0x0, &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, 0x0, 0x0, 0x4)

program did not crash
testing program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0), 0x0, 0x4)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true 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_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in __rq_qos_throttle
a never seen crash title: INFO: task hung in __rq_qos_throttle, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount-openat-pwrite64
program crashed: INFO: task hung in do_get_write_access
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program crashed: INFO: task hung in do_get_write_access
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$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")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program crashed: INFO: task hung in do_get_write_access
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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_mount_image$ext4-mount-openat-pwrite64
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f0000000000)='./sys\x00', 0x800, &(0x7f00000002c0)={[{@grpjquota_path={'grpjquota', 0x3d, './dev/mapper/control'}}, {@nodelalloc}, {@sysvgroups}, {@inlinecrypt}]}, 0x1, 0x501, &(0x7f0000000e00)="$eJzs3c9rm+cdAPCvJNuJHW/5sTGSHJZABtkPYvkHI/Y2GDltOwTGAjsNMs9WvMyyZSw5i00OznbLYYexsUHpoff+Bb00p+ZSem7pqVB6KClt6kJLaVHRK8k/Jdt1bCv2+/mArOd9JL3f57H4Pnr1vO+rN4DUulz7k4noj4i3IuJ0fXHjEy7X71aePZio3TJRrd76OJM8r7bcfGrzdaciIhcRJyPiD7+J+Etma9zy4tL0eLFYmG8s5yszc/ny4tK1uzPjU4WpwuzQ6PWxsdHBkeGxPfbs6y01j/71t0c3X/tdz6uf//Ppk3+/8XqtWf2Nx9b3Yz/Vu94dZ9fVdUXErw4iWAfkGv3p7XRD2JPa+/e9iLiS5P/pyCXvJpAG1Wq1+lX1RLuHl6vAsZVNtoEz2YGIqJez2YGB+jb896MvWyyVKz+7U1qYnaxvK5+J7uydu8XCYOO7wpnoztSWh5Ly2vLwpuWRiGQb+D+53mR5YKJUnDzcoQ7Y5NSm/P8sV89/ICV85Yf0kv+QXvIf0kv+Q3rJf0gv+Q/p1ZUcqgukkc9/SC/5D+kl/yG9tsv/nkNsB3Cofn/zZu1WrZ//no3Je4sL06V71yYL5emBmYWJgYnS/NzAVKk0lZyzM7PT+oql0tzQz2Phfr5SKFfy5cWl2zOlhdnK7eS8/tuF7sPpFrALZy89ficTEcu/6E1use4jX67C8VatZqLT5yADnZHr9AAEdIypf0ivb/Edv+2PhAFHW4uf6N2gzQHCv465AwkHHIJspxsAdMzVC8+x/6/97wYDR4D5f0gv8/+QXpu38W0PQPrscf4/dpr/dwwxvLjM/0N69be5/td31l27azAivhsRb+e6TzSv9QUcB9kPM43t/6unf9S/+dGezBfJlEBPRPz9pVv/uz9eqcwP1eo/Wa2v/L9RP9yJ9gO71czTZh4DAOm18uzBRPN2mHG7bkRvo7gpfldjbvJksg+hbyWz4ViFzD4du7D8MCLOt+p/pnG98/qej76V3Jb45xr3mfoqkvZ2JddNP8j4vauvvbAu/g/Xxb/43P8VSIfHNyJisFX+ZZOcjtX82zj+9O/Tvs2PbtSTtlX85viXazP+XdqwpuW2Mf768j8+aBv/YcTF1fi1Hq2NP12N+JkW8Wttu7rLPj790x9/0O6x6iv19bQa/5pqpXxlZi5fXly6lvyO3FRhdmj0+tjY6ODI8Fg+maPON2eqt/rl+TefbNf/vjbx6/19t2X/a3U/2VXvt9+zXov/4yut3/9zyX3r/3/tU+CnrVf55eaKT4ff//N28Sfb9D+7Tfxa3ci2PVtT/u9vnSgAAC+Q8uLS9HixWJjfa6EnIp7j5TsU3juwNR/FQu+L0QyFNBR2Gjnaf98Ejoa1pO90SwAAAAAAAAAAAIDdansYcPPk1n04nLjDXQQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAOBa+CQAA//9Z+M2y")
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0)
pwrite64(r0, &(0x7f00000000c0)="0200", 0x2, 0x4)

program crashed: INFO: task hung in do_get_write_access
validation run: crashed=true
reproducing took 1h38m57.051368055s
repro crashed as (corrupted=false):
INFO: task kworker/u8:16:3331 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:16   state:D stack:23200 pid:3331  tgid:3331  ppid:2      task_flags:0x4248060 flags:0x00080000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_bit_io include/linux/wait_bit.h:106 [inline]
 do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113
 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263
 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249
 ext4_mb_mark_context+0x325/0xec0 fs/ext4/mballoc.c:4125
 ext4_mb_mark_diskspace_used+0x338/0x760 fs/ext4/mballoc.c:4241
 ext4_mb_new_blocks+0x106f/0x4540 fs/ext4/mballoc.c:6329
 ext4_ext_map_blocks+0x13f1/0x5680 fs/ext4/extents.c:4469
 ext4_map_create_blocks+0x116/0x530 fs/ext4/inode.c:630
 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823
 mpage_map_one_extent fs/ext4/inode.c:2379 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline]
 ext4_do_writepages+0x239b/0x4770 fs/ext4/inode.c:2938
 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
 do_writepages+0x338/0x560 mm/page-writeback.c:2560
 __writeback_single_inode+0x136/0x1230 fs/fs-writeback.c:1788
 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2099
 __writeback_inodes_wb+0x114/0x240 fs/fs-writeback.c:2175
 wb_writeback+0x42f/0xad0 fs/fs-writeback.c:2286
 wb_check_old_data_flush fs/fs-writeback.c:2390 [inline]
 wb_do_writeback fs/fs-writeback.c:2469 [inline]
 wb_workfn+0xc98/0x10f0 fs/fs-writeback.c:2497
 process_one_work kernel/workqueue.c:3387 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
 kthread+0x38b/0x470 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 jbd2/sda1-8:4918 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8     state:D stack:25136 pid:4918  tgid:4918  ppid:2      task_flags:0x240040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_buffer include/linux/buffer_head.h:418 [inline]
 jbd2_journal_commit_transaction+0x2f26/0x5ba0 fs/jbd2/commit.c:834
 kjournald2+0x3bc/0x750 fs/jbd2/journal.c:200
 kthread+0x38b/0x470 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.0.62:6058 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.62        state:D stack:26152 pid:6058  tgid:6058  ppid:5787   task_flags:0x440040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_bit_io include/linux/wait_bit.h:106 [inline]
 do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113
 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263
 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249
 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6509
 __ext4_mark_inode_dirty+0x146/0x7b0 fs/ext4/inode.c:6694
 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6731
 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729
 generic_update_time fs/inode.c:2253 [inline]
 file_update_time_flags+0x39f/0x450 fs/inode.c:2483
 ext4_page_mkwrite+0x225/0x1150 fs/ext4/inode.c:6897
 do_page_mkwrite+0x14a/0x310 mm/memory.c:3816
 do_shared_fault mm/memory.c:6076 [inline]
 do_fault mm/memory.c:6138 [inline]
 do_pte_missing+0x734/0x28f0 mm/memory.c:4700
 handle_pte_fault mm/memory.c:6558 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0xf64/0x28c0 mm/memory.c:6876
 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7faafe256871
RSP: 002b:00007ffcf5bd18a0 EFLAGS: 00010202
RAX: 0000001b2e564000 RBX: 0000000000000016 RCX: 000000000003fde8
RDX: 0000001b2e563fff RSI: 0000000000000008 RDI: 00007faaff145720
RBP: 00007faaff145720 R08: 0000000000000000 R09: 00007faafe616038
R10: 00007faaff145700 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
 </TASK>

Showing all locks held in the system:
locks held by pr/ttyS0/17: 3, last CPU#0:
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:314 [inline]
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:439 [inline]
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 kernel/printk/printk.c:291
 #1: ffffffff99e971f8 (&port_lock_key){+.+.}-{3:3}, at: nbcon_emit_one kernel/printk/nbcon.c:1137 [inline]
 #1: ffffffff99e971f8 (&port_lock_key){+.+.}-{3:3}, at: nbcon_kthread_func+0x64c/0x880 kernel/printk/nbcon.c:1271
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 kernel/locking/spinlock_rt.c:57
locks held by khungtaskd/38: 1, last CPU#1:
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6837
locks held by kworker/u8:16/3331: 6, on CPU#0:
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff888035e5c0e0 (&type->s_umount_key#33){++++}-{4:4}, at: super_trylock_shared+0x23/0xf0 fs/super.c:688
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline]
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1887 [inline]
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3031
 #4: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444
 #5: ffff88803db1c638 (&ei->i_data_sem#2){++++}-{4:4}, at: ext4_map_blocks+0x77d/0x12c0 fs/ext4/inode.c:822
locks held by syslogd/4938: 1, on CPU#1:
 #0: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
 #0: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: finish_wait+0xbe/0x1e0 kernel/sched/wait.c:395
locks held by klogd/4945: 3, last CPU#1:
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: sock_def_readable+0xae/0x550 net/core/sock.c:3655
 #1: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
 #1: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: __wake_up_common_lock+0x2f/0x1f0 kernel/sched/wait.c:125
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 kernel/locking/spinlock_rt.c:57
locks held by getty/5342: 2, on CPU#0:
 #0: ffff8880358cd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900044cb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211
locks held by syz.0.62/6058: 3, on CPU#1:
 #0: ffff888040e296c8 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs/super.h:19 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x203/0x1150 fs/ext4/inode.c:6896
 #2: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444
locks held by syz-executor/6060: 3, on CPU#1:
 #0: ffff888035e5c510 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1069 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2918 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2942 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5092
 #2: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(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/0x470 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 17 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:io_serial_in+0x77/0xc0 drivers/tty/serial/8250/8250_port.c:409
Code: e8 de fb 65 fc 44 89 f9 d3 e3 49 83 ee 80 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 7f aa d1 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
RSP: 0018:ffffc900001678b8 EFLAGS: 00000202
RAX: 1ffffffff33d2e00 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff856078e0 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff99e97220 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125bd6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff81ecf370 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 serial_in drivers/tty/serial/8250/8250.h:128 [inline]
 serial_lsr_in drivers/tty/serial/8250/8250.h:150 [inline]
 wait_for_lsr+0x190/0x300 drivers/tty/serial/8250/8250_port.c:2013
 serial8250_fifo_wait_for_lsr_thre drivers/tty/serial/8250/8250_port.c:3270 [inline]
 __serial8250_console_fifo_write+0xd0/0x3f0 drivers/tty/serial/8250/8250_port.c:3345
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3378 [inline]
 __serial8250_console_write drivers/tty/serial/8250/8250_port.c:3429 [inline]
 serial8250_console_write+0xac5/0x1230 drivers/tty/serial/8250/8250_port.c:3493
 nbcon_emit_next_record+0xef5/0x1a90 kernel/printk/nbcon.c:-1
 nbcon_emit_one kernel/printk/nbcon.c:1157 [inline]
 nbcon_kthread_func+0x679/0x880 kernel/printk/nbcon.c:1271
 kthread+0x38b/0x470 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/u8:16:3331 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:16   state:D stack:23200 pid:3331  tgid:3331  ppid:2      task_flags:0x4248060 flags:0x00080000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_bit_io include/linux/wait_bit.h:106 [inline]
 do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113
 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263
 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249
 ext4_mb_mark_context+0x325/0xec0 fs/ext4/mballoc.c:4125
 ext4_mb_mark_diskspace_used+0x338/0x760 fs/ext4/mballoc.c:4241
 ext4_mb_new_blocks+0x106f/0x4540 fs/ext4/mballoc.c:6329
 ext4_ext_map_blocks+0x13f1/0x5680 fs/ext4/extents.c:4469
 ext4_map_create_blocks+0x116/0x530 fs/ext4/inode.c:630
 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823
 mpage_map_one_extent fs/ext4/inode.c:2379 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline]
 ext4_do_writepages+0x239b/0x4770 fs/ext4/inode.c:2938
 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
 do_writepages+0x338/0x560 mm/page-writeback.c:2560
 __writeback_single_inode+0x136/0x1230 fs/fs-writeback.c:1788
 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2099
 __writeback_inodes_wb+0x114/0x240 fs/fs-writeback.c:2175
 wb_writeback+0x42f/0xad0 fs/fs-writeback.c:2286
 wb_check_old_data_flush fs/fs-writeback.c:2390 [inline]
 wb_do_writeback fs/fs-writeback.c:2469 [inline]
 wb_workfn+0xc98/0x10f0 fs/fs-writeback.c:2497
 process_one_work kernel/workqueue.c:3387 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3470
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3551
 kthread+0x38b/0x470 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 jbd2/sda1-8:4918 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8     state:D stack:25136 pid:4918  tgid:4918  ppid:2      task_flags:0x240040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_buffer include/linux/buffer_head.h:418 [inline]
 jbd2_journal_commit_transaction+0x2f26/0x5ba0 fs/jbd2/commit.c:834
 kjournald2+0x3bc/0x750 fs/jbd2/journal.c:200
 kthread+0x38b/0x470 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.0.62:6058 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.62        state:D stack:26152 pid:6058  tgid:6058  ppid:5787   task_flags:0x440040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 io_schedule+0x80/0xe0 kernel/sched/core.c:8190
 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258
 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67
 wait_on_bit_io include/linux/wait_bit.h:106 [inline]
 do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113
 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263
 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249
 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6509
 __ext4_mark_inode_dirty+0x146/0x7b0 fs/ext4/inode.c:6694
 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6731
 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729
 generic_update_time fs/inode.c:2253 [inline]
 file_update_time_flags+0x39f/0x450 fs/inode.c:2483
 ext4_page_mkwrite+0x225/0x1150 fs/ext4/inode.c:6897
 do_page_mkwrite+0x14a/0x310 mm/memory.c:3816
 do_shared_fault mm/memory.c:6076 [inline]
 do_fault mm/memory.c:6138 [inline]
 do_pte_missing+0x734/0x28f0 mm/memory.c:4700
 handle_pte_fault mm/memory.c:6558 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0xf64/0x28c0 mm/memory.c:6876
 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7faafe256871
RSP: 002b:00007ffcf5bd18a0 EFLAGS: 00010202
RAX: 0000001b2e564000 RBX: 0000000000000016 RCX: 000000000003fde8
RDX: 0000001b2e563fff RSI: 0000000000000008 RDI: 00007faaff145720
RBP: 00007faaff145720 R08: 0000000000000000 R09: 00007faafe616038
R10: 00007faaff145700 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003
 </TASK>

Showing all locks held in the system:
locks held by pr/ttyS0/17: 3, last CPU#0:
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:314 [inline]
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:439 [inline]
 #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 kernel/printk/printk.c:291
 #1: ffffffff99e971f8 (&port_lock_key){+.+.}-{3:3}, at: nbcon_emit_one kernel/printk/nbcon.c:1137 [inline]
 #1: ffffffff99e971f8 (&port_lock_key){+.+.}-{3:3}, at: nbcon_kthread_func+0x64c/0x880 kernel/printk/nbcon.c:1271
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 kernel/locking/spinlock_rt.c:57
locks held by khungtaskd/38: 1, last CPU#1:
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6837
locks held by kworker/u8:16/3331: 6, on CPU#0:
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff88801d6d4138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc9000fc0fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff888035e5c0e0 (&type->s_umount_key#33){++++}-{4:4}, at: super_trylock_shared+0x23/0xf0 fs/super.c:688
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline]
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1887 [inline]
 #3: ffff888035e48d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3031
 #4: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444
 #5: ffff88803db1c638 (&ei->i_data_sem#2){++++}-{4:4}, at: ext4_map_blocks+0x77d/0x12c0 fs/ext4/inode.c:822
locks held by syslogd/4938: 1, on CPU#1:
 #0: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
 #0: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: finish_wait+0xbe/0x1e0 kernel/sched/wait.c:395
locks held by klogd/4945: 3, last CPU#1:
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: sock_def_readable+0xae/0x550 net/core/sock.c:3655
 #1: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
 #1: ffff888032a280d8 (&si->socket.wq.wait){+.+.}-{3:3}, at: __wake_up_common_lock+0x2f/0x1f0 kernel/sched/wait.c:125
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: __rt_spin_lock kernel/locking/spinlock_rt.c:50 [inline]
 #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 kernel/locking/spinlock_rt.c:57
locks held by getty/5342: 2, on CPU#0:
 #0: ffff8880358cd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900044cb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211
locks held by syz.0.62/6058: 3, on CPU#1:
 #0: ffff888040e296c8 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs/super.h:19 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline]
 #1: ffff888035e5c688 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x203/0x1150 fs/ext4/inode.c:6896
 #2: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444
locks held by syz-executor/6060: 3, on CPU#1:
 #0: ffff888035e5c510 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1069 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2918 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2942 [inline]
 #1: ffff88803f82c7d8 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5092
 #2: ffff888035e58bb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(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/0x470 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 17 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:io_serial_in+0x77/0xc0 drivers/tty/serial/8250/8250_port.c:409
Code: e8 de fb 65 fc 44 89 f9 d3 e3 49 83 ee 80 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 7f aa d1 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
RSP: 0018:ffffc900001678b8 EFLAGS: 00000202
RAX: 1ffffffff33d2e00 RBX: 00000000000003fd RCX: 0000000000000000
RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff856078e0 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff99e97220 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125bd6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff81ecf370 CR3: 000000000dfb0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 serial_in drivers/tty/serial/8250/8250.h:128 [inline]
 serial_lsr_in drivers/tty/serial/8250/8250.h:150 [inline]
 wait_for_lsr+0x190/0x300 drivers/tty/serial/8250/8250_port.c:2013
 serial8250_fifo_wait_for_lsr_thre drivers/tty/serial/8250/8250_port.c:3270 [inline]
 __serial8250_console_fifo_write+0xd0/0x3f0 drivers/tty/serial/8250/8250_port.c:3345
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3378 [inline]
 __serial8250_console_write drivers/tty/serial/8250/8250_port.c:3429 [inline]
 serial8250_console_write+0xac5/0x1230 drivers/tty/serial/8250/8250_port.c:3493
 nbcon_emit_next_record+0xef5/0x1a90 kernel/printk/nbcon.c:-1
 nbcon_emit_one kernel/printk/nbcon.c:1157 [inline]
 nbcon_kthread_func+0x679/0x880 kernel/printk/nbcon.c:1271
 kthread+0x38b/0x470 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>