Extracting prog: 2m52.814851512s
Minimizing prog: 30m38.74033863s
Simplifying prog options: 0s
Extracting C: 1m28.800476979s
Simplifying C: 15m41.139003387s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program crashed: KASAN: slab-use-after-free Read in move_pages_pte
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_setup-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-ioctl$UFFDIO_API-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x400})
io_uring_register$IORING_REGISTER_BUFFERS(0xffffffffffffffff, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): madvise-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
madvise(&(0x7f0000000000/0x800000)=nil, 0x800000, 0xe)
r0 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r0, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(0xffffffffffffffff, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(0xffffffffffffffff, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, 0x0)
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, 0x0, 0x0)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{0x0}], 0x1)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f00000e2000/0xc00000)=nil, 0xc00000}, 0x1})
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program did not crash
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, 0x0)
ioctl$UFFDIO_COPY(r0, 0xc028aa05, &(0x7f0000000080)={&(0x7f0000c15000/0x1000)=nil, &(0x7f0000508000/0x4000)=nil, 0x1000})
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
detailed listing:
executing program 0:
r0 = userfaultfd(0x1)
r1 = io_uring_setup(0x3eaf, &(0x7f0000000100)={0x0, 0x0, 0x1000, 0x0, 0x1})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, 0x0)
ioctl$UFFDIO_COPY(r0, 0xc028aa05, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x18)

program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
extracting C reproducer
testing compiled C program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
simplifying C reproducer
testing compiled C program (duration=1m15.580197157s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program did not crash
testing compiled C program (duration=1m15.580197157s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program did not crash
testing compiled C program (duration=1m15.580197157s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing compiled C program (duration=1m15.580197157s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing compiled C program (duration=1m15.580197157s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing compiled C program (duration=1m15.580197157s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
testing compiled C program (duration=1m15.580197157s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): userfaultfd-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-ioctl$UFFDIO_REGISTER-ioctl$UFFDIO_COPY-madvise
program crashed: KASAN: slab-use-after-free Write in __pte_offset_map_lock
reproducing took 50m41.494697044s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in set_pending kernel/locking/qspinlock_paravirt.h:112 [inline]
BUG: KASAN: slab-use-after-free in pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:429 [inline]
BUG: KASAN: slab-use-after-free in __pv_queued_spin_lock_slowpath+0x90b/0xdb0 kernel/locking/qspinlock.c:508
Write of size 1 at addr ffff88805a184a81 by task syz-executor388/6468

CPU: 1 UID: 0 PID: 6468 Comm: syz-executor388 Not tainted 6.13.0-rc1-next-20241205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 set_pending kernel/locking/qspinlock_paravirt.h:112 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:429 [inline]
 __pv_queued_spin_lock_slowpath+0x90b/0xdb0 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116
 spin_lock include/linux/spinlock.h:351 [inline]
 __pte_offset_map_lock+0x1ba/0x300 mm/pgtable-generic.c:402
 pte_offset_map_lock include/linux/mm.h:3027 [inline]
 do_anonymous_page mm/memory.c:4856 [inline]
 do_pte_missing mm/memory.c:4046 [inline]
 handle_pte_fault+0x2475/0x5ee0 mm/memory.c:5872
 __handle_mm_fault mm/memory.c:6015 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6183
 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:copy_iovec_from_user lib/iov_iter.c:1366 [inline]
RIP: 0010:iovec_from_user+0xfb/0x240 lib/iov_iter.c:1411
Code: 2d dd fc 4c 39 e3 0f 82 0d 01 00 00 48 39 eb 0f 87 04 01 00 00 4c 89 74 24 08 0f 01 cb 0f ae e8 49 ff cd 4c 89 fb 4c 89 3c 24 <49> 8b 6c 24 08 4d 8b 34 24 31 ff 48 89 ee e8 02 30 dd fc 48 85 ed
RSP: 0018:ffffc9000491f8b8 EFLAGS: 00050247
RAX: 0000000000000000 RBX: ffffc9000491f9c0 RCX: ffff88803461da00
RDX: 0000000000000000 RSI: 00000000200002d0 RDI: 00000000200002e0
RBP: 00007ffffffff000 R08: ffffffff84c230c4 R09: 1ffff110170e8940
R10: dffffc0000000000 R11: ffffed10170e8941 R12: 00000000200002d0
R13: 0000000000000000 R14: ffffc9000491f9c0 R15: ffffc9000491f9c0
 io_sqe_buffers_register+0x29b/0x820 io_uring/rsrc.c:826
 __io_uring_register io_uring/register.c:641 [inline]
 __do_sys_io_uring_register io_uring/register.c:902 [inline]
 __se_sys_io_uring_register+0xd1f/0x3b60 io_uring/register.c:879
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7effbfab4459
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effbfa6f238 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007effbfb3e328 RCX: 00007effbfab4459
RDX: 00000000200002c0 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007effbfb3e320 R08: 00007effbfa6f6c0 R09: 00007effbfa6f6c0
R10: 100000000000011a R11: 0000000000000246 R12: 00007effbfb0b074
R13: 0000000000000000 R14: 00007ffe20efb280 R15: 00007ffe20efb368
 </TASK>

Allocated by task 6468:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4104 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4160
 ptlock_alloc+0x20/0x70 mm/memory.c:7026
 ptlock_init include/linux/mm.h:2971 [inline]
 pagetable_pte_ctor include/linux/mm.h:2998 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
 pte_alloc_one+0xd3/0x510 arch/x86/mm/pgtable.c:41
 __pte_alloc+0x79/0x3c0 mm/memory.c:446
 do_anonymous_page mm/memory.c:4848 [inline]
 do_pte_missing mm/memory.c:4046 [inline]
 handle_pte_fault+0x4d4b/0x5ee0 mm/memory.c:5872
 __handle_mm_fault mm/memory.c:6015 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6183
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

Freed by task 6474:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2338 [inline]
 slab_free mm/slub.c:4598 [inline]
 kmem_cache_free+0x195/0x410 mm/slub.c:4700
 pagetable_pte_dtor include/linux/mm.h:3009 [inline]
 ___pte_free_tlb+0x2b/0x140 arch/x86/mm/pgtable.c:63
 __pte_free_tlb arch/x86/include/asm/pgalloc.h:61 [inline]
 free_pte+0x142/0x190 mm/pt_reclaim.c:31
 zap_pte_range mm/memory.c:1780 [inline]
 zap_pmd_range mm/memory.c:1822 [inline]
 zap_pud_range mm/memory.c:1851 [inline]
 zap_p4d_range mm/memory.c:1872 [inline]
 unmap_page_range+0x4062/0x48d0 mm/memory.c:1893
 zap_page_range_single+0x45c/0x630 mm/memory.c:2018
 madvise_dontneed_single_vma mm/madvise.c:859 [inline]
 madvise_dontneed_free mm/madvise.c:940 [inline]
 madvise_vma_behavior mm/madvise.c:1270 [inline]
 madvise_walk_vmas mm/madvise.c:1502 [inline]
 do_madvise+0x2774/0x4d90 mm/madvise.c:1689
 __do_sys_madvise mm/madvise.c:1705 [inline]
 __se_sys_madvise mm/madvise.c:1703 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1703
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88805a184a80
 which belongs to the cache page->ptl of size 64
The buggy address is located 1 bytes inside of
 freed 64-byte region [ffff88805a184a80, ffff88805a184ac0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5a184
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801ac4f780 dead000000000122 0000000000000000
raw: 0000000000000000 00000000802a002a 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5834, tgid 5834 (syz-executor388), ts 65775696518, free_ts 65774968625
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1549
 prep_new_page mm/page_alloc.c:1557 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3475
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4752
 alloc_pages_mpol+0x30e/0x550 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2408 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2574
 new_slab mm/slub.c:2627 [inline]
 ___slab_alloc+0xc27/0x14a0 mm/slub.c:3815
 __slab_alloc+0x58/0xa0 mm/slub.c:3905
 __slab_alloc_node mm/slub.c:3980 [inline]
 slab_alloc_node mm/slub.c:4141 [inline]
 kmem_cache_alloc_noprof+0x268/0x380 mm/slub.c:4160
 ptlock_alloc+0x20/0x70 mm/memory.c:7026
 ptlock_init include/linux/mm.h:2971 [inline]
 pagetable_pte_ctor include/linux/mm.h:2998 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
 pte_alloc_one+0xd3/0x510 arch/x86/mm/pgtable.c:41
 __pte_alloc+0x79/0x3c0 mm/memory.c:446
 copy_pte_range mm/memory.c:1106 [inline]
 copy_pmd_range+0x6fb4/0x77a0 mm/memory.c:1261
 copy_pud_range mm/memory.c:1298 [inline]
 copy_p4d_range mm/memory.c:1322 [inline]
 copy_page_range+0x99f/0xe90 mm/memory.c:1420
 dup_mmap kernel/fork.c:751 [inline]
 dup_mm kernel/fork.c:1693 [inline]
 copy_mm+0x12d2/0x2060 kernel/fork.c:1742
 copy_process+0x1845/0x3d80 kernel/fork.c:2393
 kernel_clone+0x226/0x8e0 kernel/fork.c:2805
page last free pid 973 tgid 973 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2658
 vfree+0x186/0x2e0 mm/vmalloc.c:3382
 delayed_vfree_work+0x56/0x80 mm/vmalloc.c:3303
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805a184980: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 00
 ffff88805a184a00: fc fc fc fc 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88805a184a80: fa fb fb fb fb fb fb fb fc fc fc fc 00 00 00 00
                   ^
 ffff88805a184b00: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 00
 ffff88805a184b80: fc fc fc fc 00 00 00 00 00 00 00 00 fc fc fc fc
==================================================================
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	fc                   	cld
   1:	4c 39 e3             	cmp    %r12,%rbx
   4:	0f 82 0d 01 00 00    	jb     0x117
   a:	48 39 eb             	cmp    %rbp,%rbx
   d:	0f 87 04 01 00 00    	ja     0x117
  13:	4c 89 74 24 08       	mov    %r14,0x8(%rsp)
  18:	0f 01 cb             	stac
  1b:	0f ae e8             	lfence
  1e:	49 ff cd             	dec    %r13
  21:	4c 89 fb             	mov    %r15,%rbx
  24:	4c 89 3c 24          	mov    %r15,(%rsp)
* 28:	49 8b 6c 24 08       	mov    0x8(%r12),%rbp <-- trapping instruction
  2d:	4d 8b 34 24          	mov    (%r12),%r14
  31:	31 ff                	xor    %edi,%edi
  33:	48 89 ee             	mov    %rbp,%rsi
  36:	e8 02 30 dd fc       	call   0xfcdd303d
  3b:	48 85 ed             	test   %rbp,%rbp

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in set_pending kernel/locking/qspinlock_paravirt.h:112 [inline]
BUG: KASAN: slab-use-after-free in pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:429 [inline]
BUG: KASAN: slab-use-after-free in __pv_queued_spin_lock_slowpath+0x90b/0xdb0 kernel/locking/qspinlock.c:508
Write of size 1 at addr ffff88805a184a81 by task syz-executor388/6468

CPU: 1 UID: 0 PID: 6468 Comm: syz-executor388 Not tainted 6.13.0-rc1-next-20241205-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 set_pending kernel/locking/qspinlock_paravirt.h:112 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:429 [inline]
 __pv_queued_spin_lock_slowpath+0x90b/0xdb0 kernel/locking/qspinlock.c:508
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline]
 queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116
 spin_lock include/linux/spinlock.h:351 [inline]
 __pte_offset_map_lock+0x1ba/0x300 mm/pgtable-generic.c:402
 pte_offset_map_lock include/linux/mm.h:3027 [inline]
 do_anonymous_page mm/memory.c:4856 [inline]
 do_pte_missing mm/memory.c:4046 [inline]
 handle_pte_fault+0x2475/0x5ee0 mm/memory.c:5872
 __handle_mm_fault mm/memory.c:6015 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6183
 do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x2b9/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:copy_iovec_from_user lib/iov_iter.c:1366 [inline]
RIP: 0010:iovec_from_user+0xfb/0x240 lib/iov_iter.c:1411
Code: 2d dd fc 4c 39 e3 0f 82 0d 01 00 00 48 39 eb 0f 87 04 01 00 00 4c 89 74 24 08 0f 01 cb 0f ae e8 49 ff cd 4c 89 fb 4c 89 3c 24 <49> 8b 6c 24 08 4d 8b 34 24 31 ff 48 89 ee e8 02 30 dd fc 48 85 ed
RSP: 0018:ffffc9000491f8b8 EFLAGS: 00050247
RAX: 0000000000000000 RBX: ffffc9000491f9c0 RCX: ffff88803461da00
RDX: 0000000000000000 RSI: 00000000200002d0 RDI: 00000000200002e0
RBP: 00007ffffffff000 R08: ffffffff84c230c4 R09: 1ffff110170e8940
R10: dffffc0000000000 R11: ffffed10170e8941 R12: 00000000200002d0
R13: 0000000000000000 R14: ffffc9000491f9c0 R15: ffffc9000491f9c0
 io_sqe_buffers_register+0x29b/0x820 io_uring/rsrc.c:826
 __io_uring_register io_uring/register.c:641 [inline]
 __do_sys_io_uring_register io_uring/register.c:902 [inline]
 __se_sys_io_uring_register+0xd1f/0x3b60 io_uring/register.c:879
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7effbfab4459
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effbfa6f238 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007effbfb3e328 RCX: 00007effbfab4459
RDX: 00000000200002c0 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007effbfb3e320 R08: 00007effbfa6f6c0 R09: 00007effbfa6f6c0
R10: 100000000000011a R11: 0000000000000246 R12: 00007effbfb0b074
R13: 0000000000000000 R14: 00007ffe20efb280 R15: 00007ffe20efb368
 </TASK>

Allocated by task 6468:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4104 [inline]
 slab_alloc_node mm/slub.c:4153 [inline]
 kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4160
 ptlock_alloc+0x20/0x70 mm/memory.c:7026
 ptlock_init include/linux/mm.h:2971 [inline]
 pagetable_pte_ctor include/linux/mm.h:2998 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
 pte_alloc_one+0xd3/0x510 arch/x86/mm/pgtable.c:41
 __pte_alloc+0x79/0x3c0 mm/memory.c:446
 do_anonymous_page mm/memory.c:4848 [inline]
 do_pte_missing mm/memory.c:4046 [inline]
 handle_pte_fault+0x4d4b/0x5ee0 mm/memory.c:5872
 __handle_mm_fault mm/memory.c:6015 [inline]
 handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6183
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

Freed by task 6474:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2338 [inline]
 slab_free mm/slub.c:4598 [inline]
 kmem_cache_free+0x195/0x410 mm/slub.c:4700
 pagetable_pte_dtor include/linux/mm.h:3009 [inline]
 ___pte_free_tlb+0x2b/0x140 arch/x86/mm/pgtable.c:63
 __pte_free_tlb arch/x86/include/asm/pgalloc.h:61 [inline]
 free_pte+0x142/0x190 mm/pt_reclaim.c:31
 zap_pte_range mm/memory.c:1780 [inline]
 zap_pmd_range mm/memory.c:1822 [inline]
 zap_pud_range mm/memory.c:1851 [inline]
 zap_p4d_range mm/memory.c:1872 [inline]
 unmap_page_range+0x4062/0x48d0 mm/memory.c:1893
 zap_page_range_single+0x45c/0x630 mm/memory.c:2018
 madvise_dontneed_single_vma mm/madvise.c:859 [inline]
 madvise_dontneed_free mm/madvise.c:940 [inline]
 madvise_vma_behavior mm/madvise.c:1270 [inline]
 madvise_walk_vmas mm/madvise.c:1502 [inline]
 do_madvise+0x2774/0x4d90 mm/madvise.c:1689
 __do_sys_madvise mm/madvise.c:1705 [inline]
 __se_sys_madvise mm/madvise.c:1703 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1703
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88805a184a80
 which belongs to the cache page->ptl of size 64
The buggy address is located 1 bytes inside of
 freed 64-byte region [ffff88805a184a80, ffff88805a184ac0)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x5a184
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801ac4f780 dead000000000122 0000000000000000
raw: 0000000000000000 00000000802a002a 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 5834, tgid 5834 (syz-executor388), ts 65775696518, free_ts 65774968625
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1549
 prep_new_page mm/page_alloc.c:1557 [inline]
 get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3475
 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4752
 alloc_pages_mpol+0x30e/0x550 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:2408 [inline]
 allocate_slab+0x8f/0x3a0 mm/slub.c:2574
 new_slab mm/slub.c:2627 [inline]
 ___slab_alloc+0xc27/0x14a0 mm/slub.c:3815
 __slab_alloc+0x58/0xa0 mm/slub.c:3905
 __slab_alloc_node mm/slub.c:3980 [inline]
 slab_alloc_node mm/slub.c:4141 [inline]
 kmem_cache_alloc_noprof+0x268/0x380 mm/slub.c:4160
 ptlock_alloc+0x20/0x70 mm/memory.c:7026
 ptlock_init include/linux/mm.h:2971 [inline]
 pagetable_pte_ctor include/linux/mm.h:2998 [inline]
 __pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
 pte_alloc_one+0xd3/0x510 arch/x86/mm/pgtable.c:41
 __pte_alloc+0x79/0x3c0 mm/memory.c:446
 copy_pte_range mm/memory.c:1106 [inline]
 copy_pmd_range+0x6fb4/0x77a0 mm/memory.c:1261
 copy_pud_range mm/memory.c:1298 [inline]
 copy_p4d_range mm/memory.c:1322 [inline]
 copy_page_range+0x99f/0xe90 mm/memory.c:1420
 dup_mmap kernel/fork.c:751 [inline]
 dup_mm kernel/fork.c:1693 [inline]
 copy_mm+0x12d2/0x2060 kernel/fork.c:1742
 copy_process+0x1845/0x3d80 kernel/fork.c:2393
 kernel_clone+0x226/0x8e0 kernel/fork.c:2805
page last free pid 973 tgid 973 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2658
 vfree+0x186/0x2e0 mm/vmalloc.c:3382
 delayed_vfree_work+0x56/0x80 mm/vmalloc.c:3303
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Memory state around the buggy address:
 ffff88805a184980: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 00
 ffff88805a184a00: fc fc fc fc 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88805a184a80: fa fb fb fb fb fb fb fb fc fc fc fc 00 00 00 00
                   ^
 ffff88805a184b00: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 00
 ffff88805a184b80: fc fc fc fc 00 00 00 00 00 00 00 00 fc fc fc fc
==================================================================
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	fc                   	cld
   1:	4c 39 e3             	cmp    %r12,%rbx
   4:	0f 82 0d 01 00 00    	jb     0x117
   a:	48 39 eb             	cmp    %rbp,%rbx
   d:	0f 87 04 01 00 00    	ja     0x117
  13:	4c 89 74 24 08       	mov    %r14,0x8(%rsp)
  18:	0f 01 cb             	stac
  1b:	0f ae e8             	lfence
  1e:	49 ff cd             	dec    %r13
  21:	4c 89 fb             	mov    %r15,%rbx
  24:	4c 89 3c 24          	mov    %r15,(%rsp)
* 28:	49 8b 6c 24 08       	mov    0x8(%r12),%rbp <-- trapping instruction
  2d:	4d 8b 34 24          	mov    (%r12),%r14
  31:	31 ff                	xor    %edi,%edi
  33:	48 89 ee             	mov    %rbp,%rsi
  36:	e8 02 30 dd fc       	call   0xfcdd303d
  3b:	48 85 ed             	test   %rbp,%rbp