Extracting prog: 1m21.903743139s
Minimizing prog: 7m57.885281414s
Simplifying prog options: 0s
Extracting C: 21.429445072s
Simplifying C: 6m3.645379184s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-unshare-socket$nl_route-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
unshare(0x6060400)
socket$nl_route(0x10, 0x3, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-unshare-socket$nl_route-mmap
detailed listing:
executing program 0:
syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
unshare(0x6060400)
socket$nl_route(0x10, 0x3, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-unshare-socket$nl_route-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
unshare(0x6060400)
socket$nl_route(0x10, 0x3, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-unshare-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
unshare(0x6060400)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing program (duration=45.152972817s, {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_procfs-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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}}): io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(0xffffffffffffffff, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, 0x0)
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program did not crash
testing program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.152972817s, {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_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
simplifying C reproducer
testing compiled C program (duration=45.152972817s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program did not crash
testing compiled C program (duration=45.152972817s, {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}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program did not crash
testing compiled C program (duration=45.152972817s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing compiled C program (duration=45.152972817s, {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_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing compiled C program (duration=45.152972817s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing compiled C program (duration=45.152972817s, {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_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing compiled C program (duration=45.152972817s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing compiled C program (duration=45.152972817s, {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_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
testing program (duration=45.152972817s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
validation run: crashed=true
testing program (duration=45.152972817s, {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_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
validation run: crashed=true
testing program (duration=45.152972817s, {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_open_procfs-io_uring_setup-mmap-ioctl$KVM_SET_USER_MEMORY_REGION
detailed listing:
executing program 0:
r0 = syz_open_procfs(0x0, &(0x7f0000000040)='maps\x00')
io_uring_setup(0x2e34, &(0x7f0000000180))
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeef, 0x8031, 0xffffffffffffffff, 0x0) (async)
ioctl$KVM_SET_USER_MEMORY_REGION(r0, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x3f, 0x2000, &(0x7f0000ffe000/0x2000)=nil})

program crashed: BUG: unable to handle kernel NULL pointer dereference in filemap_read_folio
validation run: crashed=true
reproducing took 17m43.141101883s
repro crashed as (corrupted=false):
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 32a64067 P4D 32a64067 PUD 0 
Oops: Oops: 0010 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 6137 Comm: syz.0.30 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003ca79a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f559ee
RDX: ffff888029cb2480 RSI: ffffea00013608c0 RDI: ffff888012db7340
RBP: ffffea00013608c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000794f35
R13: ffff888012db7340 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fd7bdaa36c0(0000) GS:ffff8880d6b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000322f3000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_read_folio+0xc8/0x2a0 mm/filemap.c:2444
 do_read_cache_folio+0x263/0x5c0 mm/filemap.c:4024
 freader_get_folio+0x337/0x930 lib/buildid.c:77
 freader_fetch+0xc2/0x5e0 lib/buildid.c:120
 __build_id_parse.isra.0+0xec/0x7a0 lib/buildid.c:305
 do_procmap_query+0xb0e/0x1080 fs/proc/task_mmu.c:733
 procfs_procmap_ioctl+0x9d/0xe0 fs/proc/task_mmu.c:813
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7bcb8efc9
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:00007fd7bdaa3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd7bcde6090 RCX: 00007fd7bcb8efc9
RDX: 0000200000000180 RSI: 00000000c0686611 RDI: 0000000000000003
RBP: 00007fd7bcc11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd7bcde6128 R14: 00007fd7bcde6090 R15: 00007ffe89740718
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003ca79a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f559ee
RDX: ffff888029cb2480 RSI: ffffea00013608c0 RDI: ffff888012db7340
RBP: ffffea00013608c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000794f35
R13: ffff888012db7340 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fd7bdaa36c0(0000) GS:ffff8880d6b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000322f3000 CR4: 0000000000352ef0

final repro crashed as (corrupted=false):
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 32a64067 P4D 32a64067 PUD 0 
Oops: Oops: 0010 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 6137 Comm: syz.0.30 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003ca79a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f559ee
RDX: ffff888029cb2480 RSI: ffffea00013608c0 RDI: ffff888012db7340
RBP: ffffea00013608c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000794f35
R13: ffff888012db7340 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fd7bdaa36c0(0000) GS:ffff8880d6b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000322f3000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_read_folio+0xc8/0x2a0 mm/filemap.c:2444
 do_read_cache_folio+0x263/0x5c0 mm/filemap.c:4024
 freader_get_folio+0x337/0x930 lib/buildid.c:77
 freader_fetch+0xc2/0x5e0 lib/buildid.c:120
 __build_id_parse.isra.0+0xec/0x7a0 lib/buildid.c:305
 do_procmap_query+0xb0e/0x1080 fs/proc/task_mmu.c:733
 procfs_procmap_ioctl+0x9d/0xe0 fs/proc/task_mmu.c:813
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7bcb8efc9
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:00007fd7bdaa3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd7bcde6090 RCX: 00007fd7bcb8efc9
RDX: 0000200000000180 RSI: 00000000c0686611 RDI: 0000000000000003
RBP: 00007fd7bcc11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd7bcde6128 R14: 00007fd7bcde6090 R15: 00007ffe89740718
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003ca79a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81f559ee
RDX: ffff888029cb2480 RSI: ffffea00013608c0 RDI: ffff888012db7340
RBP: ffffea00013608c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000794f35
R13: ffff888012db7340 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fd7bdaa36c0(0000) GS:ffff8880d6b08000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000322f3000 CR4: 0000000000352ef0