Extracting prog: 2m27.432291172s
Minimizing prog: 58m46.051871126s
Simplifying prog options: 0s
Extracting C: 2m40.197764484s
Simplifying C: 13m16.535426442s


extracting reproducer from 76 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS-io_uring_register$IORING_REGISTER_BUFFERS_UPDATE
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)
io_uring_register$IORING_REGISTER_BUFFERS_UPDATE(r3, 0x10, &(0x7f00000003c0)={0xf4, 0x0, &(0x7f0000000240)=[{&(0x7f0000002700)=""/4096, 0x2200}], 0x0, 0xa}, 0x20)

program crashed: general protection fault in io_check_coalesce_buffer
single: successfully extracted reproducer
found reproducer with 14 syscalls
minimizing guilty program
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-madvise-mremap-io_uring_setup
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-madvise-mremap-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
io_uring_register$IORING_REGISTER_BUFFERS(0xffffffffffffffff, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-madvise-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-sendmmsg$unix-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-connect$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff})
connect$unix(r1, &(0x7f0000000180)=@abs, 0x6e)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r2 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r2, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
sendmmsg$unix(0xffffffffffffffff, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r1 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
getpid()
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmmsg$unix(r1, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r0, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r2 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r2, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
sendmmsg$unix(r1, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r0, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r2 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r2, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, 0x0)
sendmmsg$unix(0xffffffffffffffff, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r1 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r1, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, 0x0, 0x0, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, 0x0, 0x0, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, 0x0)
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{0x0}], 0x1)

program did not crash
extracting C reproducer
testing compiled C program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
simplifying C reproducer
testing compiled C program (duration=46.021971604s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program did not crash
testing compiled C program (duration=46.021971604s, {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}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program did not crash
testing compiled C program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program did not crash
testing compiled C program (duration=46.021971604s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
testing compiled C program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
testing compiled C program (duration=46.021971604s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
testing compiled C program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
testing compiled C program (duration=46.021971604s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
program crashed: general protection fault in io_check_coalesce_buffer
testing program (duration=46.021971604s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
validation run: crashed=true
testing program (duration=46.021971604s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
validation run: crashed=true
testing program (duration=46.021971604s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-getpid-sched_setscheduler-socketpair$unix-sendmmsg$unix-recvmmsg-madvise-mremap-io_uring_setup-io_uring_register$IORING_REGISTER_BUFFERS
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
madvise(&(0x7f0000a93000/0x4000)=nil, 0x4000, 0x80000000e)
mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x400000, 0x3, &(0x7f0000000000/0x400000)=nil)
r3 = io_uring_setup(0x3450, &(0x7f0000000080)={0x0, 0x0, 0x40, 0x1, 0xfffffffb})
io_uring_register$IORING_REGISTER_BUFFERS(r3, 0x0, &(0x7f00000002c0)=[{&(0x7f0000001700)=""/4095, 0x440000}], 0x100000000000011a)

program crashed: general protection fault in io_check_coalesce_buffer
validation run: crashed=true
reproducing took 1h23m30.386382518s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 UID: 0 PID: 6175 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:_compound_head include/linux/page-flags.h:284 [inline]
RIP: 0010:io_check_coalesce_buffer+0x354/0xb60 io_uring/rsrc.c:746
Code: f7 e8 e0 64 63 fd 4c 89 74 24 28 48 8b 44 24 18 4c 8b 74 d8 08 49 8d 6e 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 ae 64 63 fd 48 8b 6d 00 48 89 ee 48
RSP: 0018:ffffc90003a5fa38 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 00000000000001ff RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888024768ff8
RBP: 0000000000000008 R08: ffffea0001908007 R09: 1ffffd4000321000
R10: dffffc0000000000 R11: fffff94000321001 R12: ffff888024768ff8
R13: 0000000000000200 R14: 0000000000000000 R15: ffffea0001908000
FS:  00007fb6be5816c0(0000) GS:ffff8881259fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000095030 CR3: 0000000078fd4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 io_sqe_buffer_register+0x1ef/0x20a0 io_uring/rsrc.c:807
 io_sqe_buffers_register+0x3b9/0x8e0 io_uring/rsrc.c:913
 __io_uring_register io_uring/register.c:657 [inline]
 __do_sys_io_uring_register io_uring/register.c:926 [inline]
 __se_sys_io_uring_register+0xb85/0x11b0 io_uring/register.c:903
 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: 0033:0x7fb6bd78ebe9
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:00007fb6be581038 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007fb6bd9c6180 RCX: 00007fb6bd78ebe9
RDX: 00002000000002c0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fb6bd811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 100000000000011a R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb6bd9c6218 R14: 00007fb6bd9c6180 R15: 00007ffdb92f0a28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_compound_head include/linux/page-flags.h:284 [inline]
RIP: 0010:io_check_coalesce_buffer+0x354/0xb60 io_uring/rsrc.c:746
Code: f7 e8 e0 64 63 fd 4c 89 74 24 28 48 8b 44 24 18 4c 8b 74 d8 08 49 8d 6e 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 ae 64 63 fd 48 8b 6d 00 48 89 ee 48
RSP: 0018:ffffc90003a5fa38 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 00000000000001ff RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888024768ff8
RBP: 0000000000000008 R08: ffffea0001908007 R09: 1ffffd4000321000
R10: dffffc0000000000 R11: fffff94000321001 R12: ffff888024768ff8
R13: 0000000000000200 R14: 0000000000000000 R15: ffffea0001908000
FS:  00007fb6be5816c0(0000) GS:ffff8881259fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000095030 CR3: 0000000078fd4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	f7 e8                	imul   %eax
   2:	e0 64                	loopne 0x68
   4:	63 fd                	movsxd %ebp,%edi
   6:	4c 89 74 24 28       	mov    %r14,0x28(%rsp)
   b:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  10:	4c 8b 74 d8 08       	mov    0x8(%rax,%rbx,8),%r14
  15:	49 8d 6e 08          	lea    0x8(%r14),%rbp
  19:	48 89 e8             	mov    %rbp,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 ef             	mov    %rbp,%rdi
  33:	e8 ae 64 63 fd       	call   0xfd6364e6
  38:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  3c:	48 89 ee             	mov    %rbp,%rsi
  3f:	48                   	rex.W

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 UID: 0 PID: 6175 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:_compound_head include/linux/page-flags.h:284 [inline]
RIP: 0010:io_check_coalesce_buffer+0x354/0xb60 io_uring/rsrc.c:746
Code: f7 e8 e0 64 63 fd 4c 89 74 24 28 48 8b 44 24 18 4c 8b 74 d8 08 49 8d 6e 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 ae 64 63 fd 48 8b 6d 00 48 89 ee 48
RSP: 0018:ffffc90003a5fa38 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 00000000000001ff RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888024768ff8
RBP: 0000000000000008 R08: ffffea0001908007 R09: 1ffffd4000321000
R10: dffffc0000000000 R11: fffff94000321001 R12: ffff888024768ff8
R13: 0000000000000200 R14: 0000000000000000 R15: ffffea0001908000
FS:  00007fb6be5816c0(0000) GS:ffff8881259fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000095030 CR3: 0000000078fd4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 io_sqe_buffer_register+0x1ef/0x20a0 io_uring/rsrc.c:807
 io_sqe_buffers_register+0x3b9/0x8e0 io_uring/rsrc.c:913
 __io_uring_register io_uring/register.c:657 [inline]
 __do_sys_io_uring_register io_uring/register.c:926 [inline]
 __se_sys_io_uring_register+0xb85/0x11b0 io_uring/register.c:903
 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: 0033:0x7fb6bd78ebe9
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:00007fb6be581038 EFLAGS: 00000246 ORIG_RAX: 00000000000001ab
RAX: ffffffffffffffda RBX: 00007fb6bd9c6180 RCX: 00007fb6bd78ebe9
RDX: 00002000000002c0 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fb6bd811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 100000000000011a R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb6bd9c6218 R14: 00007fb6bd9c6180 R15: 00007ffdb92f0a28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_compound_head include/linux/page-flags.h:284 [inline]
RIP: 0010:io_check_coalesce_buffer+0x354/0xb60 io_uring/rsrc.c:746
Code: f7 e8 e0 64 63 fd 4c 89 74 24 28 48 8b 44 24 18 4c 8b 74 d8 08 49 8d 6e 08 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 ae 64 63 fd 48 8b 6d 00 48 89 ee 48
RSP: 0018:ffffc90003a5fa38 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 00000000000001ff RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888024768ff8
RBP: 0000000000000008 R08: ffffea0001908007 R09: 1ffffd4000321000
R10: dffffc0000000000 R11: fffff94000321001 R12: ffff888024768ff8
R13: 0000000000000200 R14: 0000000000000000 R15: ffffea0001908000
FS:  00007fb6be5816c0(0000) GS:ffff8881259fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000095030 CR3: 0000000078fd4000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	f7 e8                	imul   %eax
   2:	e0 64                	loopne 0x68
   4:	63 fd                	movsxd %ebp,%edi
   6:	4c 89 74 24 28       	mov    %r14,0x28(%rsp)
   b:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  10:	4c 8b 74 d8 08       	mov    0x8(%rax,%rbx,8),%r14
  15:	49 8d 6e 08          	lea    0x8(%r14),%rbp
  19:	48 89 e8             	mov    %rbp,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	48 89 ef             	mov    %rbp,%rdi
  33:	e8 ae 64 63 fd       	call   0xfd6364e6
  38:	48 8b 6d 00          	mov    0x0(%rbp),%rbp
  3c:	48 89 ee             	mov    %rbp,%rsi
  3f:	48                   	rex.W