Extracting prog: 40m16.807770353s
Minimizing prog: 17m39.314226831s
Simplifying prog options: 0s
Extracting C: 1m11.315525116s
Simplifying C: 15m54.406015238s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-write-mkdirat-mount$nfs4
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
single: failed to extract reproducer
bisect: bisecting 30 programs with base timeout 30s
testing program (duration=37s, {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}}): [4, 8, 29, 7, 4, 10, 2, 4, 4, 6, 9, 3, 29, 10, 3, 10, 3, 24, 20, 8, 2, 29, 21, 21, 4, 9, 10, 2, 4, 11]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/dma\x00', 0x0, 0x0)
getdents64(r0, &(0x7f0000000000), 0x1000)
executing program 4:
r0 = openat$userio(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
write$USERIO_CMD_SET_PORT_TYPE(r0, &(0x7f0000000100)={0x1, 0x1}, 0x2)
write$USERIO_CMD_REGISTER(r0, &(0x7f0000000200), 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140)={0x2, 0xfa}, 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140), 0x2)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
executing program 2:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r6, &(0x7f0000000500)='2\n', 0x2)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/device\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/100, 0x64)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/virtio/devices/virtio0/features\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/100, 0x64)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/virtio/devices/virtio1\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi0\x00', 0x2, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000100))
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci/0000:00:02.0/uevent\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:02.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/devices/0000:00:02.0/device\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/256, 0x100)
executing program 4:
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000000)='ns/net\x00')
unshare(0x40000000)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x1001})
r2 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFADDR(r2, 0x8916, &(0x7f0000000300)={'syzkaller1\x00'})
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000400)={'syzkaller1\x00', <r3=>0x0})
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=@setlink={0x28, 0x13, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, r3}, [@IFLA_NET_NS_FD={0x8, 0x1c, r0}]}, 0x28}}, 0x0)
executing program 2:
syz_usb_connect(0x5, 0x32, &(0x7f0000000040)=ANY=[@ANYBLOB="12011002000000402505a4a400000000000109022000010100c0000904000002ff0000000705810200020007050202000200"], &(0x7f0000000200)={0x0, 0x0, 0xf, &(0x7f0000000300)=ANY=[@ANYBLOB="050f0f00010a1003000e0001000000"]})
nanosleep(&(0x7f0000000500)={0x1}, 0x0)
syz_open_dev$usbfs(&(0x7f0000000400), 0x15, 0x2)
executing program 3:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r6, 0x0, 0x0)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 3:
syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
syz_usb_connect$uac1(0x2, 0x72, &(0x7f00000002c0)={{0x12, 0x1, 0x201, 0x0, 0x0, 0x0, 0x40, 0x17cc, 0x1021, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x60, 0x3, 0x1, 0x10, 0x20, 0x8, "", {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, {{0xa, 0x24, 0x1, 0x5, 0xa}}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x0, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x400, 0x9, 0x3, 0x4, {0x7, 0x25, 0x1, 0x8, 0x3, 0x5}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x0, 0x0, {}, {{0x9, 0x5, 0x82, 0x9, 0x200, 0xd, 0xfc, 0xe, {0x7, 0x25, 0x1, 0x8, 0x3, 0x5}}}}}}}}]}}, &(0x7f0000000580)={0x0, 0x0, 0x0, 0x0})
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
r0 = syz_open_dev$sndpcmc(&(0x7f00000001a0), 0x0, 0x2)
r1 = syz_open_dev$sndpcmc(&(0x7f00000001e0), 0x1, 0x2)
ioctl$SNDRV_PCM_IOCTL_PREPARE(r0, 0x4140, 0x0)
ioctl$SNDRV_PCM_IOCTL_START(r0, 0x4142, 0x0)
ioctl$SNDRV_PCM_IOCTL_PREPARE(r1, 0x4140, 0x0)
ioctl$SNDRV_PCM_IOCTL_START(r1, 0x4142, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci\x00', 0x0, 0x0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='./sys/bus/event_source/devices/software\x00', 0x0, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./proc\x00', &(0x7f0000000140)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./nfsd\x00', &(0x7f0000000240)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000340)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f00000003c0)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x1, 0x0)
write(r2, &(0x7f0000000440)='nfsd 127.0.0.1 2147483647 localhost\n', 0x24)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./proc/net/rpc/nfsd.export/channel\x00', 0x1, 0x0)
write(r3, &(0x7f0000000540)='localhost / 2147483647 74754 0 0 0\n', 0x23)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./proc/net/rpc/nfsd.fh/channel\x00', 0x1, 0x0)
write(r4, &(0x7f0000000640)='localhost 1 \\x00000000 2147483647 /\n', 0x24)
close(r4)
nanosleep(&(0x7f0000000a00)={0x0, 0x5f5e100}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000700)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000740)='127.0.0.1:/\x00', &(0x7f0000000700)='./mnt\x00', &(0x7f0000000780), 0x0, &(0x7f0000000800)=ANY=[@ANYBLOB='addr=127.0.0.1,port=2049,proto=tcp,vers=4.1,noresvport'])
r5 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./mnt/testfile\x00', 0x42, 0x1ff)
close(r5)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./proc\x00', 0x1ff)
mount(&(0x7f0000000080), &(0x7f00000000c0)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000180), &(0x7f00000001c0)='./nfsd\x00', &(0x7f0000000200)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000280)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000300)='2\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r2, &(0x7f0000000380)='nfsd 127.0.0.1 2147483647 localhost\n', 0x25)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./proc/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
write(r3, &(0x7f0000000400)='localhost / 2147483647 131072 0 0 0\n', 0x24)
close(r3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000440)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000480), &(0x7f00000004c0)='./mnt\x00', &(0x7f0000000500)='nfs4\x00', 0x0, &(0x7f0000000540)='addr=127.0.0.1,port=2049,nolock,vers=4.0\x00')
r4 = openat(0xffffffffffffff9c, &(0x7f0000000580)='./mnt/testfile\x00', 0x42, 0x1ff)
fcntl$lock(r4, 0x6, &(0x7f00000005c0)={0x1, 0x0, 0x0, 0x64})
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
executing program 3:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r6, 0x0, 0x0)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./dev\x00', &(0x7f0000000140)='devtmpfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./dbg\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./dbg\x00', &(0x7f00000001c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dbg/fail_make_request/probability\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='100\n', 0x4)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./dbg/fail_make_request/times\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1000\n', 0x5)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/block/ram1/make-it-fail\x00', 0x1, 0x0)
write(r2, &(0x7f0000000340)='1\n', 0x2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/module/md_mod/parameters/new_array\x00', 0x1, 0x0)
write(r3, &(0x7f00000003c0)='md0\n', 0x4)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./dev/md0\x00', 0x4002, 0x0)
ioctl(r4, 0x40480923, &(0x7f0000000500)="000000000000000000000000000000000a00000000080000020000000200000000000000010000000000000001000000020000000200000000000000000000000201000000000100")
ioctl(r4, 0x40140921, &(0x7f0000000600)="0000000001000000000000000000000006000000")
ioctl(r4, 0x40140921, &(0x7f0000000640)="0100000001000000010000000100000006000000")
ioctl(r4, 0x400c0930, 0x0)
write(r4, &(0x7f0000000700)='\x00'/4096, 0x1000)
nanosleep(&(0x7f0000000800)={0x0, 0x5f5e100}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1ff)
pwrite64(r0, &(0x7f0000000200)='\x00', 0x1, 0x1000000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x42, 0x1ff)
pwrite64(r1, &(0x7f0000000200)='\x00', 0x1, 0x2000000)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./dev/loop0\x00', 0x2, 0x0)
ioctl(r2, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r2, 0x4c00, r0)
r3 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./dev/loop1\x00', 0x2, 0x0)
ioctl(r3, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r3, 0x4c00, r1)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r4, 0xc138fd01, &(0x7f0000000000)="04000000000000000000000038010000")
ioctl(r4, 0xc138fd03, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./dum\x00', 0x42, 0x1ff)
write(r5, &(0x7f0000000138)="0000000000000000008000000000000000000000000000007468696e2d706f6f6c00000000000000373a3020373a31203132382030", 0x35)
ioctl(r4, 0xc138fd09, &(0x7f0000000000)="0400000000000000000000006e01000038010000010000000000000000000000000000000000000000000000000000006d79706f")
ioctl(r4, 0xc138fd06, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
write(r5, &(0x7f0000000138)='\x00\x00\x00\x00\x00\x00\x00\x00create_thin 1\x00', 0x16)
ioctl(r4, 0xc138fd0e, &(0x7f0000000000)="0400000000000000000000006001000038010000000000000000000000000000000000000000000000000000000000006d79706f")
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/class/i2c-dev/i2c-0/device/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000100)='tps6598x 0x20\n', 0xe)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/i2c/devices/i2c-0/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='dummy 0x22\n\x00', 0xb)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./file0\x00', 0x1, 0x0)
write(r1, &(0x7f0000000400)='maxtcpc\n\x00', 0x8)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000600)='0-0022\n\x00', 0x7)
openat(0xffffffffffffff9c, &(0x7f0000000700)='./sys/bus/i2c/devices/0-0022/driver\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', &(0x7f0000000180)='configfs\x00', 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./f0\x00', 0x42, 0x1b6)
ioctl(r0, 0xc138fd03, &(0x7f0000000040)="040000000000000000000000380100003801000000000000000000000000000000000000000000000000000000000000746573742d636163686500"/312)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='1\n\x00', 0x2)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ed)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='-2 -3 +4 +4.1 +4.2\n', 0x13)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r1, &(0x7f0000000240)='tcp 2049\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n', 0x2)
close(r2)

program crashed: kernel BUG in svc_destroy
bisect: bisecting 30 programs
bisect: split chunks (needed=false): <29>
bisect: split chunk #0 of len 29 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=35s, {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}}): [9, 3, 29, 10, 3, 10, 3, 24, 20, 8, 2, 29, 21, 21, 4, 9, 10, 2, 4, 11]
detailed listing:
executing program 4:
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000000)='ns/net\x00')
unshare(0x40000000)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x1001})
r2 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFADDR(r2, 0x8916, &(0x7f0000000300)={'syzkaller1\x00'})
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000400)={'syzkaller1\x00', <r3=>0x0})
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r4, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)=@setlink={0x28, 0x13, 0x1, 0x0, 0x0, {0x0, 0x0, 0x0, r3}, [@IFLA_NET_NS_FD={0x8, 0x1c, r0}]}, 0x28}}, 0x0)
executing program 2:
syz_usb_connect(0x5, 0x32, &(0x7f0000000040)=ANY=[@ANYBLOB="12011002000000402505a4a400000000000109022000010100c0000904000002ff0000000705810200020007050202000200"], &(0x7f0000000200)={0x0, 0x0, 0xf, &(0x7f0000000300)=ANY=[@ANYBLOB="050f0f00010a1003000e0001000000"]})
nanosleep(&(0x7f0000000500)={0x1}, 0x0)
syz_open_dev$usbfs(&(0x7f0000000400), 0x15, 0x2)
executing program 3:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r6, 0x0, 0x0)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 3:
syz_open_dev$usbmon(&(0x7f0000000000), 0x0, 0x0)
syz_usb_connect$uac1(0x2, 0x72, &(0x7f00000002c0)={{0x12, 0x1, 0x201, 0x0, 0x0, 0x0, 0x40, 0x17cc, 0x1021, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x60, 0x3, 0x1, 0x10, 0x20, 0x8, "", {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, {{0xa, 0x24, 0x1, 0x5, 0xa}}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x0, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x400, 0x9, 0x3, 0x4, {0x7, 0x25, 0x1, 0x8, 0x3, 0x5}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x0, 0x0, {}, {{0x9, 0x5, 0x82, 0x9, 0x200, 0xd, 0xfc, 0xe, {0x7, 0x25, 0x1, 0x8, 0x3, 0x5}}}}}}}}]}}, &(0x7f0000000580)={0x0, 0x0, 0x0, 0x0})
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
r0 = syz_open_dev$sndpcmc(&(0x7f00000001a0), 0x0, 0x2)
r1 = syz_open_dev$sndpcmc(&(0x7f00000001e0), 0x1, 0x2)
ioctl$SNDRV_PCM_IOCTL_PREPARE(r0, 0x4140, 0x0)
ioctl$SNDRV_PCM_IOCTL_START(r0, 0x4142, 0x0)
ioctl$SNDRV_PCM_IOCTL_PREPARE(r1, 0x4140, 0x0)
ioctl$SNDRV_PCM_IOCTL_START(r1, 0x4142, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci\x00', 0x0, 0x0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='./sys/bus/event_source/devices/software\x00', 0x0, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./proc\x00', &(0x7f0000000140)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./nfsd\x00', &(0x7f0000000240)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000340)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f00000003c0)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x1, 0x0)
write(r2, &(0x7f0000000440)='nfsd 127.0.0.1 2147483647 localhost\n', 0x24)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./proc/net/rpc/nfsd.export/channel\x00', 0x1, 0x0)
write(r3, &(0x7f0000000540)='localhost / 2147483647 74754 0 0 0\n', 0x23)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./proc/net/rpc/nfsd.fh/channel\x00', 0x1, 0x0)
write(r4, &(0x7f0000000640)='localhost 1 \\x00000000 2147483647 /\n', 0x24)
close(r4)
nanosleep(&(0x7f0000000a00)={0x0, 0x5f5e100}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000700)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000740)='127.0.0.1:/\x00', &(0x7f0000000700)='./mnt\x00', &(0x7f0000000780), 0x0, &(0x7f0000000800)=ANY=[@ANYBLOB='addr=127.0.0.1,port=2049,proto=tcp,vers=4.1,noresvport'])
r5 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./mnt/testfile\x00', 0x42, 0x1ff)
close(r5)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./proc\x00', 0x1ff)
mount(&(0x7f0000000080), &(0x7f00000000c0)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000180), &(0x7f00000001c0)='./nfsd\x00', &(0x7f0000000200)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000280)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000300)='2\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
write(r2, &(0x7f0000000380)='nfsd 127.0.0.1 2147483647 localhost\n', 0x25)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./proc/net/rpc/nfsd.export/channel\x00', 0x2, 0x0)
write(r3, &(0x7f0000000400)='localhost / 2147483647 131072 0 0 0\n', 0x24)
close(r3)
mkdirat(0xffffffffffffff9c, &(0x7f0000000440)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000480), &(0x7f00000004c0)='./mnt\x00', &(0x7f0000000500)='nfs4\x00', 0x0, &(0x7f0000000540)='addr=127.0.0.1,port=2049,nolock,vers=4.0\x00')
r4 = openat(0xffffffffffffff9c, &(0x7f0000000580)='./mnt/testfile\x00', 0x42, 0x1ff)
fcntl$lock(r4, 0x6, &(0x7f00000005c0)={0x1, 0x0, 0x0, 0x64})
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
executing program 3:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r6, 0x0, 0x0)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./dev\x00', &(0x7f0000000140)='devtmpfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./dbg\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./dbg\x00', &(0x7f00000001c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dbg/fail_make_request/probability\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='100\n', 0x4)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./dbg/fail_make_request/times\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1000\n', 0x5)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/block/ram1/make-it-fail\x00', 0x1, 0x0)
write(r2, &(0x7f0000000340)='1\n', 0x2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/module/md_mod/parameters/new_array\x00', 0x1, 0x0)
write(r3, &(0x7f00000003c0)='md0\n', 0x4)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./dev/md0\x00', 0x4002, 0x0)
ioctl(r4, 0x40480923, &(0x7f0000000500)="000000000000000000000000000000000a00000000080000020000000200000000000000010000000000000001000000020000000200000000000000000000000201000000000100")
ioctl(r4, 0x40140921, &(0x7f0000000600)="0000000001000000000000000000000006000000")
ioctl(r4, 0x40140921, &(0x7f0000000640)="0100000001000000010000000100000006000000")
ioctl(r4, 0x400c0930, 0x0)
write(r4, &(0x7f0000000700)='\x00'/4096, 0x1000)
nanosleep(&(0x7f0000000800)={0x0, 0x5f5e100}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1ff)
pwrite64(r0, &(0x7f0000000200)='\x00', 0x1, 0x1000000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x42, 0x1ff)
pwrite64(r1, &(0x7f0000000200)='\x00', 0x1, 0x2000000)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./dev/loop0\x00', 0x2, 0x0)
ioctl(r2, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r2, 0x4c00, r0)
r3 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./dev/loop1\x00', 0x2, 0x0)
ioctl(r3, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r3, 0x4c00, r1)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r4, 0xc138fd01, &(0x7f0000000000)="04000000000000000000000038010000")
ioctl(r4, 0xc138fd03, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./dum\x00', 0x42, 0x1ff)
write(r5, &(0x7f0000000138)="0000000000000000008000000000000000000000000000007468696e2d706f6f6c00000000000000373a3020373a31203132382030", 0x35)
ioctl(r4, 0xc138fd09, &(0x7f0000000000)="0400000000000000000000006e01000038010000010000000000000000000000000000000000000000000000000000006d79706f")
ioctl(r4, 0xc138fd06, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
write(r5, &(0x7f0000000138)='\x00\x00\x00\x00\x00\x00\x00\x00create_thin 1\x00', 0x16)
ioctl(r4, 0xc138fd0e, &(0x7f0000000000)="0400000000000000000000006001000038010000000000000000000000000000000000000000000000000000000000006d79706f")
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/class/i2c-dev/i2c-0/device/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000100)='tps6598x 0x20\n', 0xe)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/i2c/devices/i2c-0/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='dummy 0x22\n\x00', 0xb)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./file0\x00', 0x1, 0x0)
write(r1, &(0x7f0000000400)='maxtcpc\n\x00', 0x8)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000600)='0-0022\n\x00', 0x7)
openat(0xffffffffffffff9c, &(0x7f0000000700)='./sys/bus/i2c/devices/0-0022/driver\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', &(0x7f0000000180)='configfs\x00', 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./f0\x00', 0x42, 0x1b6)
ioctl(r0, 0xc138fd03, &(0x7f0000000040)="040000000000000000000000380100003801000000000000000000000000000000000000000000000000000000000000746573742d636163686500"/312)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='1\n\x00', 0x2)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ed)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='-2 -3 +4 +4.1 +4.2\n', 0x13)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r1, &(0x7f0000000240)='tcp 2049\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n', 0x2)
close(r2)

program did not crash
bisect: testing without sub-chunk 2/3
testing program (duration=35s, {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}}): [4, 8, 29, 7, 4, 10, 2, 4, 4, 6, 8, 29, 21, 21, 4, 9, 10, 2, 4, 11]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/dma\x00', 0x0, 0x0)
getdents64(r0, &(0x7f0000000000), 0x1000)
executing program 4:
r0 = openat$userio(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
write$USERIO_CMD_SET_PORT_TYPE(r0, &(0x7f0000000100)={0x1, 0x1}, 0x2)
write$USERIO_CMD_REGISTER(r0, &(0x7f0000000200), 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140)={0x2, 0xfa}, 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140), 0x2)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
executing program 2:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r6, &(0x7f0000000500)='2\n', 0x2)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/device\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/100, 0x64)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/virtio/devices/virtio0/features\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/100, 0x64)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/virtio/devices/virtio1\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi0\x00', 0x2, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000100))
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci/0000:00:02.0/uevent\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:02.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/devices/0000:00:02.0/device\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/256, 0x100)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))
executing program 3:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r6, 0x0, 0x0)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./dev\x00', &(0x7f0000000140)='devtmpfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./dbg\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./dbg\x00', &(0x7f00000001c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dbg/fail_make_request/probability\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='100\n', 0x4)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./dbg/fail_make_request/times\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1000\n', 0x5)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/block/ram1/make-it-fail\x00', 0x1, 0x0)
write(r2, &(0x7f0000000340)='1\n', 0x2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000380)='./sys/module/md_mod/parameters/new_array\x00', 0x1, 0x0)
write(r3, &(0x7f00000003c0)='md0\n', 0x4)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./dev/md0\x00', 0x4002, 0x0)
ioctl(r4, 0x40480923, &(0x7f0000000500)="000000000000000000000000000000000a00000000080000020000000200000000000000010000000000000001000000020000000200000000000000000000000201000000000100")
ioctl(r4, 0x40140921, &(0x7f0000000600)="0000000001000000000000000000000006000000")
ioctl(r4, 0x40140921, &(0x7f0000000640)="0100000001000000010000000100000006000000")
ioctl(r4, 0x400c0930, 0x0)
write(r4, &(0x7f0000000700)='\x00'/4096, 0x1000)
nanosleep(&(0x7f0000000800)={0x0, 0x5f5e100}, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1ff)
pwrite64(r0, &(0x7f0000000200)='\x00', 0x1, 0x1000000)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./file1\x00', 0x42, 0x1ff)
pwrite64(r1, &(0x7f0000000200)='\x00', 0x1, 0x2000000)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./dev/loop0\x00', 0x2, 0x0)
ioctl(r2, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r2, 0x4c00, r0)
r3 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./dev/loop1\x00', 0x2, 0x0)
ioctl(r3, 0x4c01, 0x0)
ioctl$LOOP_SET_FD(r3, 0x4c00, r1)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r4, 0xc138fd01, &(0x7f0000000000)="04000000000000000000000038010000")
ioctl(r4, 0xc138fd03, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./dum\x00', 0x42, 0x1ff)
write(r5, &(0x7f0000000138)="0000000000000000008000000000000000000000000000007468696e2d706f6f6c00000000000000373a3020373a31203132382030", 0x35)
ioctl(r4, 0xc138fd09, &(0x7f0000000000)="0400000000000000000000006e01000038010000010000000000000000000000000000000000000000000000000000006d79706f")
ioctl(r4, 0xc138fd06, &(0x7f0000000000)="0400000000000000000000003801000000000000000000000000000000000000000000000000000000000000000000006d79706f")
write(r5, &(0x7f0000000138)='\x00\x00\x00\x00\x00\x00\x00\x00create_thin 1\x00', 0x16)
ioctl(r4, 0xc138fd0e, &(0x7f0000000000)="0400000000000000000000006001000038010000000000000000000000000000000000000000000000000000000000006d79706f")
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/class/i2c-dev/i2c-0/device/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000100)='tps6598x 0x20\n', 0xe)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/i2c/devices/i2c-0/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='dummy 0x22\n\x00', 0xb)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./file0\x00', 0x1, 0x0)
write(r1, &(0x7f0000000400)='maxtcpc\n\x00', 0x8)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000600)='0-0022\n\x00', 0x7)
openat(0xffffffffffffff9c, &(0x7f0000000700)='./sys/bus/i2c/devices/0-0022/driver\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', &(0x7f0000000180)='configfs\x00', 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./f0\x00', 0x42, 0x1b6)
ioctl(r0, 0xc138fd03, &(0x7f0000000040)="040000000000000000000000380100003801000000000000000000000000000000000000000000000000000000000000746573742d636163686500"/312)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='1\n\x00', 0x2)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ed)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='-2 -3 +4 +4.1 +4.2\n', 0x13)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r1, &(0x7f0000000240)='tcp 2049\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n', 0x2)
close(r2)

program crashed: KASAN: use-after-free Write in nfsd_create_serv
bisect: the chunk can be dropped
bisect: testing without sub-chunk 3/3
testing program (duration=32s, {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}}): [4, 8, 29, 7, 4, 10, 2, 4, 4, 6, 8]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/dma\x00', 0x0, 0x0)
getdents64(r0, &(0x7f0000000000), 0x1000)
executing program 4:
r0 = openat$userio(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
write$USERIO_CMD_SET_PORT_TYPE(r0, &(0x7f0000000100)={0x1, 0x1}, 0x2)
write$USERIO_CMD_REGISTER(r0, &(0x7f0000000200), 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140)={0x2, 0xfa}, 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140), 0x2)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
executing program 2:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r6, &(0x7f0000000500)='2\n', 0x2)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/device\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/100, 0x64)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/virtio/devices/virtio0/features\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/100, 0x64)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/virtio/devices/virtio1\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi0\x00', 0x2, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000100))
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci/0000:00:02.0/uevent\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:02.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/devices/0000:00:02.0/device\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/256, 0x100)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program crashed: KASAN: use-after-free Write in nfsd_create_serv
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <10>
bisect: split chunk #0 of len 10 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=31s, {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}}): [10, 2, 4, 4, 6, 8]
detailed listing:
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000140)='./config\x00', 0x0, 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f00000002c0)='./config/nvmet/ports/1/addr_adrfam\x00', 0x2, 0x0)
write(r0, &(0x7f0000000300)='fc\n', 0x3)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./config/nvmet/ports/1/addr_traddr\x00', 0x2, 0x0)
write(r1, &(0x7f0000000380)='nn-0x2000000044112233:pn-0x1000000044112233\n', 0x2c)
close(r1)
symlinkat(&(0x7f0000000440)='./config/nvmet/subsystems/testsubsys\x00', 0xffffffffffffff9c, &(0x7f0000000480)='./config/nvmet/ports/1/subsystems/testsubsys\x00')
executing program 1:
r0 = openat$comedi(0xffffffffffffff9c, &(0x7f0000000000)='/dev/comedi0\x00', 0x2, 0x0)
ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000100))
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci/0000:00:02.0/uevent\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:02.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/devices/0000:00:02.0/device\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/256, 0x100)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=31s, {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}}): [4, 8, 29, 7, 4, 8]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/dma\x00', 0x0, 0x0)
getdents64(r0, &(0x7f0000000000), 0x1000)
executing program 4:
r0 = openat$userio(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0)
write$USERIO_CMD_SET_PORT_TYPE(r0, &(0x7f0000000100)={0x1, 0x1}, 0x2)
write$USERIO_CMD_REGISTER(r0, &(0x7f0000000200), 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140)={0x2, 0xfa}, 0x2)
write$USERIO_CMD_SEND_INTERRUPT(r0, &(0x7f0000000140), 0x2)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
read(r0, &(0x7f0000000400), 0x1)
executing program 2:
mkdir(0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r3, &(0x7f00000002c0)='0\n', 0x2)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r4, &(0x7f0000000340)='1\n', 0x2)
mkdir(0x0, 0x1ff)
close(0xffffffffffffffff)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r5, &(0x7f0000000480)='1\n', 0x2)
close(r5)
r6 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r6, &(0x7f0000000500)='2\n', 0x2)
close(r6)
openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='ocfs2_dlmfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/device\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/100, 0x64)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/virtio/devices/virtio0/features\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/100, 0x64)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/virtio/devices/virtio1\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program crashed: KASAN: use-after-free Write in nfsd_create_serv
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <5>
bisect: split chunk #0 of len 5 into 2 parts
bisect: testing without sub-chunk 1/2
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}}): [7, 4, 8]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/device\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/100, 0x64)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/virtio/devices/virtio0/features\x00', 0x0, 0x0)
read(r1, &(0x7f0000000400)=""/100, 0x64)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/virtio/devices/virtio1\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program crashed: KASAN: use-after-free Write in nfsd_create_serv
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/2
bisect: no need to test this chunk, it's definitely needed
bisect: split chunks (needed=true): <2>
bisect: split chunk #0 of len 2 into 2 parts
bisect: testing without sub-chunk 1/2
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}}): [4, 8]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program crashed: KASAN: use-after-free Write in nfsd_create_serv
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/2
bisect: no need to test this chunk, it's definitely needed
bisect: split chunks (needed=true): <1>
bisect: split chunk #0 of len 1 into 2 parts
bisect: no way to further split the chunk
bisect: 2 programs left: 

executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))


bisect: trying to concatenate
bisect: concatenate 2 entries
minimizing program #0 before concatenation
testing program (duration=45s, {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}}): [3, 8]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
testing program (duration=45s, {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}}): [3, 8]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
testing program (duration=45s, {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}}): [3, 8]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
testing program (duration=45s, {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}}): [3, 8]
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)
mount$nfs4(&(0x7f0000000400)='127.0.0.1:/\x00', &(0x7f0000000300)='./mnt\x00', &(0x7f0000000500), 0x0, &(0x7f0000000600))

program did not crash
minimized 4 calls -> 4 calls
minimizing program #1 before concatenation
testing program (duration=45s, {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}}): [4, 7]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)
mkdirat(0xffffffffffffff9c, &(0x7f0000000300)='./mnt\x00', 0x1ff)

program crashed: KASAN: use-after-free Write in nfsd_create_serv
testing program (duration=45s, {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}}): [4, 6]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000280)='1\n', 0x2)

program crashed: KASAN: use-after-free Write in nfsd_create_serv
testing program (duration=45s, {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}}): [4, 5]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/threads\x00', 0x2, 0x0)

program crashed: KASAN: use-after-free Write in nfsd_shutdown_threads
testing program (duration=45s, {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}}): [4, 4]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='2049\n', 0x5)

program crashed: KASAN: use-after-free Write in nfsd_shutdown_threads
testing program (duration=45s, {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}}): [4, 3]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {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}}): [4, 2]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {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}}): [4, 1]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {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}}): [4, 0]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)
executing program 0:

program crashed: kernel BUG in svc_destroy
minimized 8 calls -> 0 calls
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
bisect: concatenation succeeded
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=45s, {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}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=45s, {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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45s, {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}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
simplifying C reproducer
testing compiled C program (duration=45s, {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}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {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}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
VM was preempted during C execution: failed to run command in VM: instance is preempted, retrying
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
reproducing took 1h19m49.064092343s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:605!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4420 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:svc_destroy+0x184/0x190 net/sunrpc/svc.c:605
Code: 5f 5d e9 bf b1 62 f8 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 24 ff ff ff 4c 89 ff e8 66 3f 7b f8 e9 17 ff ff ff e8 ac fa 29 f8 <0f> 0b e8 a5 fa 29 f8 0f 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53
RSP: 0018:ffffc900033e7b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88801bf22050 RCX: ffff88801d2a5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900033e7cb8 R08: ffffffff90b0f35f R09: 1ffffffff2161e6b
R10: dffffc0000000000 R11: fffffbfff2161e6c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88801bf22068 R15: 0000000000000001
FS:  0000555574ab4500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002d4d5faea000 CR3: 000000002e177000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:123 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:768 [inline]
 __write_ports fs/nfsd/nfsctl.c:794 [inline]
 write_ports+0xa26/0xb80 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x105/0x150 fs/nfsd/nfsctl.c:114
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb5f6b9e159
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:00007ffeece65798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb5f6e25fa0 RCX: 00007fb5f6b9e159
RDX: 0000000000000009 RSI: 00002000000001c0 RDI: 0000000000000003
RBP: 00007fb5f6c3503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb5f6e25fac R14: 00007fb5f6e25fa0 R15: 00007fb5f6e25fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:svc_destroy+0x184/0x190 net/sunrpc/svc.c:605
Code: 5f 5d e9 bf b1 62 f8 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 24 ff ff ff 4c 89 ff e8 66 3f 7b f8 e9 17 ff ff ff e8 ac fa 29 f8 <0f> 0b e8 a5 fa 29 f8 0f 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53
RSP: 0018:ffffc900033e7b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88801bf22050 RCX: ffff88801d2a5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900033e7cb8 R08: ffffffff90b0f35f R09: 1ffffffff2161e6b
R10: dffffc0000000000 R11: fffffbfff2161e6c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88801bf22068 R15: 0000000000000001
FS:  0000555574ab4500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002d4d5faea000 CR3: 000000002e177000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:605!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4420 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:svc_destroy+0x184/0x190 net/sunrpc/svc.c:605
Code: 5f 5d e9 bf b1 62 f8 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 24 ff ff ff 4c 89 ff e8 66 3f 7b f8 e9 17 ff ff ff e8 ac fa 29 f8 <0f> 0b e8 a5 fa 29 f8 0f 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53
RSP: 0018:ffffc900033e7b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88801bf22050 RCX: ffff88801d2a5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900033e7cb8 R08: ffffffff90b0f35f R09: 1ffffffff2161e6b
R10: dffffc0000000000 R11: fffffbfff2161e6c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88801bf22068 R15: 0000000000000001
FS:  0000555574ab4500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002d4d5faea000 CR3: 000000002e177000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:123 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:768 [inline]
 __write_ports fs/nfsd/nfsctl.c:794 [inline]
 write_ports+0xa26/0xb80 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x105/0x150 fs/nfsd/nfsctl.c:114
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb5f6b9e159
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:00007ffeece65798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb5f6e25fa0 RCX: 00007fb5f6b9e159
RDX: 0000000000000009 RSI: 00002000000001c0 RDI: 0000000000000003
RBP: 00007fb5f6c3503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb5f6e25fac R14: 00007fb5f6e25fa0 R15: 00007fb5f6e25fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:svc_destroy+0x184/0x190 net/sunrpc/svc.c:605
Code: 5f 5d e9 bf b1 62 f8 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 24 ff ff ff 4c 89 ff e8 66 3f 7b f8 e9 17 ff ff ff e8 ac fa 29 f8 <0f> 0b e8 a5 fa 29 f8 0f 0b 0f 1f 00 55 41 57 41 56 41 55 41 54 53
RSP: 0018:ffffc900033e7b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88801bf22050 RCX: ffff88801d2a5a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900033e7cb8 R08: ffffffff90b0f35f R09: 1ffffffff2161e6b
R10: dffffc0000000000 R11: fffffbfff2161e6c R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88801bf22068 R15: 0000000000000001
FS:  0000555574ab4500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002d4d5faea000 CR3: 000000002e177000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400