Extracting prog: 2m30.034320097s
Minimizing prog: 18m56.066741975s
Simplifying prog options: 0s
Extracting C: 1m19.485299783s
Simplifying C: 11m28.454093124s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program crashed: WARNING in bdev_getblk
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
socket(0x2, 0x1, 0x0)
r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_DO_IT(r0, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(0xffffffffffffffff, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, 0xffffffffffffffff)
ioctl$NBD_DO_IT(r1, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = socket(0x2, 0x1, 0x0)
r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r0)
ioctl$NBD_DO_IT(r1, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, 0x0, 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(0x0, 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(0x0, 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(0x0, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, 0x0, &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', 0x0, 0x2008087, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program crashed: WARNING in bdev_getblk
simplifying C reproducer
testing compiled C program (duration=45.964228087s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program crashed: WARNING in bdev_getblk
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing compiled C program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
program did not crash
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program crashed: WARNING in bdev_getblk
validation run: crashed=true
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program crashed: WARNING in bdev_getblk
validation run: crashed=true
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program did not crash
validation run: crashed=false
testing program (duration=45.964228087s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-syz_open_dev$ndb-socket-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-mount
detailed listing:
executing program 0:
openat$dir(0xffffffffffffff9c, &(0x7f0000001a00)='./file1\x00', 0x40042, 0x0)
r0 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x80000)
r1 = socket(0x2, 0x1, 0x0)
r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0)
ioctl$NBD_SET_SOCK(r0, 0xab00, r1)
ioctl$NBD_DO_IT(r2, 0xab03)
mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000004a00)='./file1\x00', &(0x7f0000000080)='udf\x00', 0x2008087, 0x0)

program crashed: WARNING in bdev_getblk
validation run: crashed=true
reproducing took 43m25.06205386s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: fs/buffer.c:1125 at __getblk_slow fs/buffer.c:1125 [inline], CPU#0: syz.1.18/6082
WARNING: fs/buffer.c:1125 at bdev_getblk+0x580/0x660 fs/buffer.c:1461, CPU#0: syz.1.18/6082
Modules linked in:
CPU: 0 UID: 0 PID: 6082 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__getblk_slow fs/buffer.c:1125 [inline]
RIP: 0010:bdev_getblk+0x580/0x660 fs/buffer.c:1461
Code: 26 fb ff ff e8 31 17 78 ff 48 c7 c7 60 50 ba 8b 48 c7 c6 a3 11 cf 8d 4c 89 fa 4c 89 e9 e8 18 b7 de fe eb bd e8 11 17 78 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89
RSP: 0018:ffffc90003027670 EFLAGS: 00010293
RAX: ffffffff8248eeaf RBX: ffff8880230d3998 RCX: ffff88807e229e40
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff82176f2d
R10: 0000000000000406 R11: 0000000000000000 R12: ffff8880230d42f0
R13: ffff8880230d3980 R14: 0000000000000200 R15: 1ffff1100461a733
FS:  00007f1d233fe6c0(0000) GS:ffff8881257ba000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1d233fdf98 CR3: 0000000031f76000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515
 sb_bread include/linux/buffer_head.h:346 [inline]
 udf_read_tagged+0xad/0xe00 fs/udf/misc.c:199
 udf_check_anchor_block+0x99/0x550 fs/udf/super.c:1912
 udf_scan_anchors fs/udf/super.c:1952 [inline]
 udf_load_vrs+0x6e3/0xf20 fs/udf/super.c:2033
 udf_fill_super+0x5ad/0x17a0 fs/udf/super.c:2201
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1691
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1274 [inline]
 do_new_mount_fc fs/namespace.c:3726 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3802
 do_mount fs/namespace.c:4125 [inline]
 __do_sys_mount fs/namespace.c:4324 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4301
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d2258ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1d233fe038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1d227c6090 RCX: 00007f1d2258ebe9
RDX: 0000200000000080 RSI: 0000200000004a00 RDI: 0000200000000000
RBP: 00007f1d22611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1d227c6128 R14: 00007f1d227c6090 R15: 00007fffd871c0a8
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: fs/buffer.c:1125 at __getblk_slow fs/buffer.c:1125 [inline], CPU#0: syz.1.18/6082
WARNING: fs/buffer.c:1125 at bdev_getblk+0x580/0x660 fs/buffer.c:1461, CPU#0: syz.1.18/6082
Modules linked in:
CPU: 0 UID: 0 PID: 6082 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__getblk_slow fs/buffer.c:1125 [inline]
RIP: 0010:bdev_getblk+0x580/0x660 fs/buffer.c:1461
Code: 26 fb ff ff e8 31 17 78 ff 48 c7 c7 60 50 ba 8b 48 c7 c6 a3 11 cf 8d 4c 89 fa 4c 89 e9 e8 18 b7 de fe eb bd e8 11 17 78 ff 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 41 80 3c 07 00 74 08 48 89
RSP: 0018:ffffc90003027670 EFLAGS: 00010293
RAX: ffffffff8248eeaf RBX: ffff8880230d3998 RCX: ffff88807e229e40
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: 0000000000000200 R08: 0000000000000000 R09: ffffffff82176f2d
R10: 0000000000000406 R11: 0000000000000000 R12: ffff8880230d42f0
R13: ffff8880230d3980 R14: 0000000000000200 R15: 1ffff1100461a733
FS:  00007f1d233fe6c0(0000) GS:ffff8881257ba000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1d233fdf98 CR3: 0000000031f76000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515
 sb_bread include/linux/buffer_head.h:346 [inline]
 udf_read_tagged+0xad/0xe00 fs/udf/misc.c:199
 udf_check_anchor_block+0x99/0x550 fs/udf/super.c:1912
 udf_scan_anchors fs/udf/super.c:1952 [inline]
 udf_load_vrs+0x6e3/0xf20 fs/udf/super.c:2033
 udf_fill_super+0x5ad/0x17a0 fs/udf/super.c:2201
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1691
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1751
 fc_mount fs/namespace.c:1274 [inline]
 do_new_mount_fc fs/namespace.c:3726 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3802
 do_mount fs/namespace.c:4125 [inline]
 __do_sys_mount fs/namespace.c:4324 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4301
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d2258ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1d233fe038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1d227c6090 RCX: 00007f1d2258ebe9
RDX: 0000200000000080 RSI: 0000200000004a00 RDI: 0000200000000000
RBP: 00007f1d22611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000002008087 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1d227c6128 R14: 00007f1d227c6090 R15: 00007fffd871c0a8
 </TASK>