Extracting prog: 2m17.537953425s Minimizing prog: 13m56.264687444s Simplifying prog options: 0s Extracting C: 32.036250531s Simplifying C: 9m20.508535881s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program crashed: general protection fault in io_uring_show_fdinfo single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) read$msr(0xffffffffffffffff, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180), &(0x7f0000000340)) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r0, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r0, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, 0x0, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, 0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r0, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, 0x0, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, 0x0) read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program did not crash testing program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=49.624032415s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo simplifying C reproducer testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing compiled C program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr program crashed: general protection fault in io_uring_show_fdinfo testing program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program crashed: general protection fault in io_uring_show_fdinfo validation run: crashed=true testing program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program crashed: general protection fault in io_uring_show_fdinfo validation run: crashed=true testing program (duration=49.624032415s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_open_procfs-read$msr detailed listing: executing program 0: syz_io_uring_setup(0x110, &(0x7f00000000c0)={0x0, 0x10, 0x0, 0x3, 0x80}, &(0x7f0000000180)=0x0, &(0x7f0000000340)) syz_memcpy_off$IO_URING_METADATA_GENERIC(r0, 0x4, &(0x7f0000000080)=0xfffffffc, 0x0, 0x4) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/3\x00') read$msr(r1, &(0x7f0000000180)=""/174, 0xae) program crashed: general protection fault in io_uring_show_fdinfo validation run: crashed=true reproducing took 30m1.987532205s repro crashed as (corrupted=false): Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 6016 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__io_uring_show_fdinfo io_uring/fdinfo.c:103 [inline] RIP: 0010:io_uring_show_fdinfo+0x371/0x1840 io_uring/fdinfo.c:255 Code: 0f 85 29 04 00 00 45 8b 36 44 89 f7 44 89 ee e8 15 3b 95 00 45 39 ee 76 11 e8 4b 39 95 00 45 89 fd 4c 8b 3c 24 e9 c9 03 00 00 <80> 3b 00 45 89 fd 0f 85 17 04 00 00 0f b6 2c 25 00 00 00 00 48 8b RSP: 0018:ffffc90003edf928 EFLAGS: 00010293 RAX: ffffffff812b443b RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888079be9e40 RSI: 00000000000001ff RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880285b20a9 R09: 1ffff110050b6415 R10: dffffc0000000000 R11: ffffed10050b6416 R12: 0000000000000000 R13: 00000000000001ff R14: 0000000000000000 R15: 0000000000000000 FS: 000055556d408500(0000) GS:ffff888125de4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30063fff CR3: 000000007732c000 CR4: 00000000003526f0 Call Trace: seq_show+0x5bc/0x730 fs/proc/fd.c:68 seq_read_iter+0x4ef/0xe20 fs/seq_file.c:230 seq_read+0x369/0x480 fs/seq_file.c:162 vfs_read+0x200/0xa30 fs/read_write.c:570 ksys_read+0x145/0x250 fs/read_write.c:715 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: 0033:0x7f5c9458efc9 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:00007ffecf620d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f5c947e5fa0 RCX: 00007f5c9458efc9 RDX: 00000000000000ae RSI: 0000200000000180 RDI: 0000000000000004 RBP: 00007f5c94611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5c947e5fa0 R14: 00007f5c947e5fa0 R15: 0000000000000003 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__io_uring_show_fdinfo io_uring/fdinfo.c:103 [inline] RIP: 0010:io_uring_show_fdinfo+0x371/0x1840 io_uring/fdinfo.c:255 Code: 0f 85 29 04 00 00 45 8b 36 44 89 f7 44 89 ee e8 15 3b 95 00 45 39 ee 76 11 e8 4b 39 95 00 45 89 fd 4c 8b 3c 24 e9 c9 03 00 00 <80> 3b 00 45 89 fd 0f 85 17 04 00 00 0f b6 2c 25 00 00 00 00 48 8b RSP: 0018:ffffc90003edf928 EFLAGS: 00010293 RAX: ffffffff812b443b RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888079be9e40 RSI: 00000000000001ff RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880285b20a9 R09: 1ffff110050b6415 R10: dffffc0000000000 R11: ffffed10050b6416 R12: 0000000000000000 R13: 00000000000001ff R14: 0000000000000000 R15: 0000000000000000 FS: 000055556d408500(0000) GS:ffff888125de4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30063fff CR3: 000000007732c000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 0f 85 29 04 00 00 jne 0x42f 6: 45 8b 36 mov (%r14),%r14d 9: 44 89 f7 mov %r14d,%edi c: 44 89 ee mov %r13d,%esi f: e8 15 3b 95 00 call 0x953b29 14: 45 39 ee cmp %r13d,%r14d 17: 76 11 jbe 0x2a 19: e8 4b 39 95 00 call 0x953969 1e: 45 89 fd mov %r15d,%r13d 21: 4c 8b 3c 24 mov (%rsp),%r15 25: e9 c9 03 00 00 jmp 0x3f3 * 2a: 80 3b 00 cmpb $0x0,(%rbx) <-- trapping instruction 2d: 45 89 fd mov %r15d,%r13d 30: 0f 85 17 04 00 00 jne 0x44d 36: 0f b6 2c 25 00 00 00 movzbl 0x0,%ebp 3d: 00 3e: 48 rex.W 3f: 8b .byte 0x8b final repro crashed as (corrupted=false): Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 6016 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__io_uring_show_fdinfo io_uring/fdinfo.c:103 [inline] RIP: 0010:io_uring_show_fdinfo+0x371/0x1840 io_uring/fdinfo.c:255 Code: 0f 85 29 04 00 00 45 8b 36 44 89 f7 44 89 ee e8 15 3b 95 00 45 39 ee 76 11 e8 4b 39 95 00 45 89 fd 4c 8b 3c 24 e9 c9 03 00 00 <80> 3b 00 45 89 fd 0f 85 17 04 00 00 0f b6 2c 25 00 00 00 00 48 8b RSP: 0018:ffffc90003edf928 EFLAGS: 00010293 RAX: ffffffff812b443b RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888079be9e40 RSI: 00000000000001ff RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880285b20a9 R09: 1ffff110050b6415 R10: dffffc0000000000 R11: ffffed10050b6416 R12: 0000000000000000 R13: 00000000000001ff R14: 0000000000000000 R15: 0000000000000000 FS: 000055556d408500(0000) GS:ffff888125de4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30063fff CR3: 000000007732c000 CR4: 00000000003526f0 Call Trace: seq_show+0x5bc/0x730 fs/proc/fd.c:68 seq_read_iter+0x4ef/0xe20 fs/seq_file.c:230 seq_read+0x369/0x480 fs/seq_file.c:162 vfs_read+0x200/0xa30 fs/read_write.c:570 ksys_read+0x145/0x250 fs/read_write.c:715 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: 0033:0x7f5c9458efc9 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:00007ffecf620d98 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f5c947e5fa0 RCX: 00007f5c9458efc9 RDX: 00000000000000ae RSI: 0000200000000180 RDI: 0000000000000004 RBP: 00007f5c94611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5c947e5fa0 R14: 00007f5c947e5fa0 R15: 0000000000000003 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__io_uring_show_fdinfo io_uring/fdinfo.c:103 [inline] RIP: 0010:io_uring_show_fdinfo+0x371/0x1840 io_uring/fdinfo.c:255 Code: 0f 85 29 04 00 00 45 8b 36 44 89 f7 44 89 ee e8 15 3b 95 00 45 39 ee 76 11 e8 4b 39 95 00 45 89 fd 4c 8b 3c 24 e9 c9 03 00 00 <80> 3b 00 45 89 fd 0f 85 17 04 00 00 0f b6 2c 25 00 00 00 00 48 8b RSP: 0018:ffffc90003edf928 EFLAGS: 00010293 RAX: ffffffff812b443b RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffff888079be9e40 RSI: 00000000000001ff RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880285b20a9 R09: 1ffff110050b6415 R10: dffffc0000000000 R11: ffffed10050b6416 R12: 0000000000000000 R13: 00000000000001ff R14: 0000000000000000 R15: 0000000000000000 FS: 000055556d408500(0000) GS:ffff888125de4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30063fff CR3: 000000007732c000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 0f 85 29 04 00 00 jne 0x42f 6: 45 8b 36 mov (%r14),%r14d 9: 44 89 f7 mov %r14d,%edi c: 44 89 ee mov %r13d,%esi f: e8 15 3b 95 00 call 0x953b29 14: 45 39 ee cmp %r13d,%r14d 17: 76 11 jbe 0x2a 19: e8 4b 39 95 00 call 0x953969 1e: 45 89 fd mov %r15d,%r13d 21: 4c 8b 3c 24 mov (%rsp),%r15 25: e9 c9 03 00 00 jmp 0x3f3 * 2a: 80 3b 00 cmpb $0x0,(%rbx) <-- trapping instruction 2d: 45 89 fd mov %r15d,%r13d 30: 0f 85 17 04 00 00 jne 0x44d 36: 0f b6 2c 25 00 00 00 movzbl 0x0,%ebp 3d: 00 3e: 48 rex.W 3f: 8b .byte 0x8b