Extracting prog: 2m30.463509453s
Minimizing prog: 42m41.063136996s
Simplifying prog options: 0s
Extracting C: 1m0.239197s
Simplifying C: 6m5.226789611s


extracting reproducer from 31 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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-socket$inet_udp-ioctl$sock_SIOCGIFINDEX-sendto$packet-getdents-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
r8 = socket$packet(0x11, 0x3, 0x300)
r9 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f0000000000)={'xfrm0\x00', <r10=>0x0})
sendto$packet(r8, &(0x7f00000002c0)="05031600d3fc1400000047", 0xb, 0x8004, &(0x7f0000002840)={0x11, 0x86dd, r10, 0x1, 0x0, 0x6, @multicast}, 0x14)
getdents(r4, 0x0, 0x4000)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
program crashed: possible deadlock in lookup_slow
single: successfully extracted reproducer
found reproducer with 30 syscalls
minimizing guilty program
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-socket$inet_udp-ioctl$sock_SIOCGIFINDEX-sendto$packet-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r1 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x1)
fchdir(r2)
r3 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r3, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r6 = ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r6, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r6, 0xae80, 0x0)
r7 = socket$packet(0x11, 0x3, 0x300)
r8 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, &(0x7f0000000000)={'xfrm0\x00', <r9=>0x0})
sendto$packet(r7, &(0x7f00000002c0)="05031600d3fc1400000047", 0xb, 0x8004, &(0x7f0000002840)={0x11, 0x86dd, r9, 0x1, 0x0, 0x6, @multicast}, 0x14)
getdents(r3, 0x0, 0x4000)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-socket$inet_udp-ioctl$sock_SIOCGIFINDEX-sendto$packet-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
r8 = socket$packet(0x11, 0x3, 0x300)
r9 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r9, 0x8933, &(0x7f0000000000)={'xfrm0\x00', <r10=>0x0})
sendto$packet(r8, &(0x7f00000002c0)="05031600d3fc1400000047", 0xb, 0x8004, &(0x7f0000002840)={0x11, 0x86dd, r10, 0x1, 0x0, 0x6, @multicast}, 0x14)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-socket$inet_udp-ioctl$sock_SIOCGIFINDEX-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
socket$packet(0x11, 0x3, 0x300)
r8 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r8, 0x8933, &(0x7f0000000000)={'xfrm0\x00'})
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-socket$inet_udp-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
socket$packet(0x11, 0x3, 0x300)
socket$inet_udp(0x2, 0x2, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-socket$packet-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
socket$packet(0x11, 0x3, 0x300)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
ioctl$KVM_RUN(r7, 0xae80, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-ioctl$KVM_SET_REGS-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
r7 = ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
ioctl$KVM_SET_REGS(r7, 0x4090ae82, &(0x7f0000000440)={[0x3fe, 0x2, 0x1, 0x8000000000000002, 0x4, 0x0, 0x7f, 0x80000002, 0x9, 0x0, 0x100000000000006, 0x1, 0x1000000000000004, 0x4, 0x8, 0x1], 0x54000, 0x220200})
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_CREATE_VCPU-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
ioctl$KVM_CREATE_VCPU(r6, 0xae41, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-ioctl$KVM_SET_USER_MEMORY_REGION-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
r6 = ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0x4020ae46, &(0x7f0000000400)={0x0, 0x1, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil})
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-add_key-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
add_key(&(0x7f0000000000)='rxrpc\x00', 0x0, 0x0, 0xfffffffffffffe41, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-ioctl$KVM_CREATE_VM-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
r5 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
ioctl$KVM_CREATE_VM(r5, 0xae01, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-openat$kvm-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x2000, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-recvmmsg-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-lseek-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
r4 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
lseek(r4, 0x103, 0x1)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-openat$dir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x8880, 0x85)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
fsmount(r2, 0x0, 0x1)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
fchdir(0xffffffffffffffff)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsopen-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$eJzs3d9rW1UcAPDvTdv96nQdjKE+SGEPTubStfXHBB/mo+hwoO8ztHdlNFlGk461Dtwe3IsvMgQRB+If4LuPw3/Av2KggyGj6IMvkZvedNmatFmXrZn5fOC259x703NPzv2enpOTkACG1mT2oxDxakR8m0Qcajs2GvnByfXz1h5cm8u2JBqNz/5KIsn3tc5P8t/jeeaViPjt64gThc3l1lZWF0vlcrqU56fqlctTtZXVkxcrpYV0Ib00Mzt7+p3Zmfffe7dvdX3z3D8/fHrno9PfHFv7/pd7h28lcSYO5sfa6/EUrrdnJmMyf07G4sxjJ073obBBkuz2BbAjI3mcj0XWBxyKkTzqgf+/ryKiAQypRPzDkGqNA1pz+z7Ng18Y9z9cnwBtrv/o+msjsa85NzqwljwyM8rmuxN9KD8r49c/b9/Ktujf6xAA27p+IyJOjY5u7v+SvP/buVM9nPN4Gfo/eH7uZOOftzqNfwob45/oMP4Z7xC7O7F9/Bfu9aGYrrLx3wcdx78bi1YTI3nupeaYbyy5cLGcZn3byxFxPMb2Zvmt1nNOr91tdDvWPv7Ltqz81lgwv457o3sffcx8qV56mjq3u38j4rWO499ko/2TDu2fPR/neizjaHr79W7Htq//s9X4OeKNju3/cEUr2Xp9cqp5P0y17orN/r559Pdu5e92/bP2P7B1/SeS9vXa2pOX8dO+f9Nux3Z6/+9JPm+m9+T7rpbq9aXpiD3JJ5v3zzx8bCvfOj+r//FjW/d/ne7//RHxRY/1v3nkZtdTB6H955+o/Z88cffjL3/sVn5v7f92M3U839NL/9frBT7NcwcAAAAAAACDphARByMpFDfShUKxuP7+jiNxoFCu1uonLlSXL81H87OyEzFWaK10j7e9H2I6fz9sKz/zWH42Ig5HxHcj+5v54ly1PL/blQcAAAAAAAAAAAAAAAAAAIABMd7l8/+ZP0Z2++qAZ85XfsPw2jb++/FNT8BA8v8fhpf4h+El/mF4iX8YXuIfhpf4h+El/mF4iX8AAAAAAAAAAAAAAAAAAAAAAAAAAADoq3Nnz2ZbY+3BtbksP39lZXmxeuXkfFpbLFaW54pz1aXLxYVqdaGcFueqle3+XrlavTw9E8tXp+pprT5VW1k9X6kuX6qfv1gpLaTn07HnUisAAAAAAAAAAAAAAAAAAAB4sdRWVhdL5XK6JCGxo8ToYFyGRJ8Tu90zAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMBD/wUAAP//y284sw==")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-openat-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(0xffffffffffffffff, 0x0, 0x1)
fchdir(r2)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-write-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x1)
fchdir(r2)
write(0xffffffffffffffff, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-openat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r1 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x1)
fchdir(r2)
write(r0, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-mount-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r1 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x1)
fchdir(r2)
write(r0, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mkdir-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-openat-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
openat(0xffffffffffffff9c, &(0x7f0000000800)='./export_dir\x00', 0xc2, 0x0)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-chdir-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
chdir(&(0x7f00000000c0)='./bus\x00')
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount$overlay-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1100058, &(0x7f0000000a40)={[{@workdir={'workdir', 0x3d, './proc_dir/net/rpc/auth.unix.ip/channel'}}, {@userxattr}, {@upperdir={'upperdir', 0x3d, './proc_dir/net/rpc/nfsd.export/channel'}}, {@index_on}, {@nfs_export_off}]})
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000640)='./bus\x00', 0x0)
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): syz_mount_image$ext4-mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000300)={[{@noauto_da_alloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x1}}, {@dioread_lock}, {@norecovery}, {@discard}, {@lazytime}, {@noload}, {@usrquota}, {@noauto_da_alloc}]}, 0xfe, 0x54d, &(0x7f0000000400)="$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")
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300), 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(0x0, 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, 0x0, 0x0)

program did not crash
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
simplifying C reproducer
testing compiled C program (duration=45.481644343s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing compiled C program (duration=45.481644343s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
program crashed: possible deadlock in lookup_slow
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
validation run: crashed=true
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
validation run: crashed=true
testing program (duration=45.481644343s, {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}}): mkdir-mount-openat-write-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-write
detailed listing:
executing program 0:
mkdir(&(0x7f0000000e00)='./proc_dir\x00', 0x1ff)
mount(0x0, &(0x7f0000001000)='./proc_dir\x00', &(0x7f0000001100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000001200)='./proc_dir/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r0, &(0x7f0000001300)='nfsd 127.0.0.1 2000000000 *\n', 0x1c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./proc_dir/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
r2 = fsopen(&(0x7f0000000180)='proc\x00', 0x1)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
r3 = fsmount(r2, 0x0, 0x1)
fchdir(r3)
write(r1, &(0x7f0000000b00)='* ./export_dir 2000000000 8194 0 0 0\n', 0x25)

program crashed: possible deadlock in lookup_slow
validation run: crashed=true
reproducing took 54m48.004654635s
repro crashed as (corrupted=false):
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.0.17/4316 is trying to acquire lock:
ffff8880170af728 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline]
ffff8880170af728 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: lookup_slow+0x46/0x70 fs/namei.c:1687

but task is already holding lock:
ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: cache_write+0x75/0x1e0 net/sunrpc/cache.c:942

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&sb->s_type->i_mutex_key#10);
  lock(&sb->s_type->i_mutex_key#10);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

2 locks held by syz.0.17/4316:
 #0: ffff888026112460 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #1: ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: cache_write+0x75/0x1e0 net/sunrpc/cache.c:942

stack backtrace:
CPU: 1 PID: 4316 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 __lock_acquire+0x1247/0x7b50 kernel/locking/lockdep.c:-1
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
 inode_lock_shared include/linux/fs.h:797 [inline]
 lookup_slow+0x46/0x70 fs/namei.c:1687
 walk_component+0x314/0x460 fs/namei.c:1984
 lookup_last fs/namei.c:2439 [inline]
 path_lookupat+0x148/0x420 fs/namei.c:2463
 filename_lookup+0x21e/0x550 fs/namei.c:2492
 kern_path+0x37/0x190 fs/namei.c:2590
 svc_export_parse+0x22d/0x9c0 fs/nfsd/export.c:609
 cache_do_downcall net/sunrpc/cache.c:903 [inline]
 cache_downcall net/sunrpc/cache.c:925 [inline]
 cache_write+0x180/0x1e0 net/sunrpc/cache.c:943
 pde_write fs/proc/inode.c:335 [inline]
 proc_reg_write+0x1dd/0x2c0 fs/proc/inode.c:347
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f51a57ce0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd8fbdb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f51a5a55fa0 RCX: 00007f51a57ce0d9
RDX: 0000000000000025 RSI: 0000200000000b00 RDI: 0000000000000004
RBP: 00007f51a5865024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f51a5a55fac R14: 00007f51a5a55fa0 R15: 00007f51a5a55fa0
 </TASK>

final repro crashed as (corrupted=false):
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.0.17/4316 is trying to acquire lock:
ffff8880170af728 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:797 [inline]
ffff8880170af728 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: lookup_slow+0x46/0x70 fs/namei.c:1687

but task is already holding lock:
ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: cache_write+0x75/0x1e0 net/sunrpc/cache.c:942

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&sb->s_type->i_mutex_key#10);
  lock(&sb->s_type->i_mutex_key#10);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

2 locks held by syz.0.17/4316:
 #0: ffff888026112460 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x296/0xd70 fs/read_write.c:590
 #1: ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
 #1: ffff8880170af1d0 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: cache_write+0x75/0x1e0 net/sunrpc/cache.c:942

stack backtrace:
CPU: 1 PID: 4316 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 __lock_acquire+0x1247/0x7b50 kernel/locking/lockdep.c:-1
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 down_read+0x44/0x2e0 kernel/locking/rwsem.c:1498
 inode_lock_shared include/linux/fs.h:797 [inline]
 lookup_slow+0x46/0x70 fs/namei.c:1687
 walk_component+0x314/0x460 fs/namei.c:1984
 lookup_last fs/namei.c:2439 [inline]
 path_lookupat+0x148/0x420 fs/namei.c:2463
 filename_lookup+0x21e/0x550 fs/namei.c:2492
 kern_path+0x37/0x190 fs/namei.c:2590
 svc_export_parse+0x22d/0x9c0 fs/nfsd/export.c:609
 cache_do_downcall net/sunrpc/cache.c:903 [inline]
 cache_downcall net/sunrpc/cache.c:925 [inline]
 cache_write+0x180/0x1e0 net/sunrpc/cache.c:943
 pde_write fs/proc/inode.c:335 [inline]
 proc_reg_write+0x1dd/0x2c0 fs/proc/inode.c:347
 vfs_write+0x304/0xd70 fs/read_write.c:592
 ksys_write+0x153/0x260 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f51a57ce0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdd8fbdb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f51a5a55fa0 RCX: 00007f51a57ce0d9
RDX: 0000000000000025 RSI: 0000200000000b00 RDI: 0000000000000004
RBP: 00007f51a5865024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f51a5a55fac R14: 00007f51a5a55fa0 R15: 00007f51a5a55fa0
 </TASK>