Extracting prog: 21m46.149530952s
Minimizing prog: 25m36.546434742s
Simplifying prog options: 0s
Extracting C: 1m32.48399629s
Simplifying C: 11m43.096885432s


extracting reproducer from 16 programs
testing a last program of every proc
single: executing 4 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$mtd-write-ioctl$BLKPG-write-ioctl$BLKPG
detailed listing:
executing program 0:
r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2)
write(0xffffffffffffffff, &(0x7f0000000200)="0000000000000000000001000000000000000000703100"/164, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}})
write(0xffffffffffffffff, &(0x7f0000000300)="000000000000000000000000000000000100"/160, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000001c0)={0x2, 0x0, 0x0, &(0x7f00000003c0)={0x0, 0x0, 0x1}})

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount-openat-ftruncate-syz_open_dev$loop-ioctl$LOOP_SET_FD-dup2-mkdir-mkdir-openat-write-close-openat-write-close-openat-write-close-openat-write-close-mkdir-openat-write-close-openat-write-close-openat-write-close-openat-write-close-mkdir-mount-mkdir-nanosleep
detailed listing:
executing program 0:
mkdir(&(0x7f0000000000)='./config\x00', 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, &(0x7f0000000200)='./config/cluster/ocfs2/node/node0/ipv4_port\x00', 0x1, 0x0)
write(r3, &(0x7f0000000240)='7777\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r4, &(0x7f00000002c0)='0\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r5, &(0x7f0000000340)='1\n', 0x2)
close(r5)
mkdir(&(0x7f0000000380)='./config/cluster/ocfs2/heartbeat/hb0\x00', 0x1ff)
r6 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./config/cluster/ocfs2/heartbeat/hb0/block_bytes\x00', 0x1, 0x0)
write(r6, &(0x7f0000000400)='512\n', 0x4)
close(r6)
r7 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r7, &(0x7f0000000480)='1\n', 0x2)
close(r7)
r8 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r8, &(0x7f0000000500)='2\n', 0x2)
close(r8)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
write(r9, &(0x7f0000000580)='3\n', 0x2)
close(r9)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
nanosleep(&(0x7f0000000680)={0x1}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-ftruncate-syz_open_dev$loop-ioctl$LOOP_SET_FD-openat-ftruncate-syz_open_dev$loop-ioctl$LOOP_SET_FD-openat-ftruncate-syz_open_dev$loop-ioctl$LOOP_SET_FD-openat-ioctl-ioctl
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1b6)
ftruncate(r0, 0x1000000)
r1 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file1\x00', 0x42, 0x1b6)
ftruncate(r2, 0x1000000)
r3 = syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x2)
ioctl$LOOP_SET_FD(r3, 0x4c00, r2)
r4 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file2\x00', 0x42, 0x1b6)
ftruncate(r4, 0x1000000)
r5 = syz_open_dev$loop(&(0x7f0000000140), 0x2, 0x2)
ioctl$LOOP_SET_FD(r5, 0x4c00, r4)
r6 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r6, 0xc138fd03, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
ioctl(r6, 0xc138fd00, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write-mkdirat-mount-openat-write-write-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p\n\x00', 0x3)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./proc\x00', &(0x7f00000001c0)='proc\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/dynamic_debug/control\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='+p\n\x00', 0x3)
write(r1, &(0x7f0000000280)='file messenger.c +p\n\x00', 0x14)
r2 = fsopen(&(0x7f0000000300)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f0000000340)='source\x00', &(0x7f0000000380)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f00000003c0)='mount_timeout\x00', &(0x7f0000000400)='1\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)

program did not crash
single: failed to extract reproducer
bisect: bisecting 16 programs with base timeout 30s
testing program (duration=34s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 11, 11, 8, 8, 5, 14, 2, 4, 14, 6, 4, 17, 5, 38, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/e1000\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./sys/bus/pci/drivers/e1000e\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/drivers/ahci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/pci/drivers/virtio-pci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/platform/drivers/serial8250\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/bus/platform/drivers/alarmtimer\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./nfsd/versions\x00', 0x2, 0x0)
write(r1, &(0x7f0000000540)='-2 -3 +4\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/threads\x00', 0x2, 0x0)
write(r2, &(0x7f0000000180)='1\n', 0x2)
close(r2)
executing program 0:
r0 = syz_usb_connect(0x3, 0x40, &(0x7f0000001300)=ANY=[@ANYBLOB="12010002000000407205feca00010000000109022e0001010080fa0904000004ff000000070501020002000705810200020007050204e5"], 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000100)="900100"/64)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000300)="9101000000112233445500"/64)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
nanosleep(&(0x7f0000000500)={0x0, 0x5f5e100}, 0x0)
r1 = socket(0x8, 0x2, 0x0)
setsockopt(r1, 0x108, 0x42020054, &(0x7f0000000200)="010000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000005000000", 0x54)
connect(r1, &(0x7f0000000600)=@generic={0x8}, 0xc)
sendto(r1, &(0x7f0000000700)="0123456789abcdef00"/64, 0x40, 0x0, 0x0, 0x0)
close(r1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/class/fcloop/ctl/add_target_port\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/class/fcloop/ctl/del_target_port\x00', 0x1, 0x0)
write(r1, &(0x7f0000000600)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r1)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)
executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x34, &(0x7f0000000000)=ANY=[@ANYBLOB="120100020000004086800000000000000001090222000101008032090400000103000000092111010001222f0007058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="00222f00000005200933a10185010a0e03150026e80375209501b1020a16031500250175089501b1020a19031500250175089501b1020a3404159c26e803751095018102c0"], 0x0}, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
syz_usb_disconnect(r0)
executing program 1:
r0 = syz_usb_connect(0x3, 0x39, &(0x7f0000000040)=ANY=[@ANYBLOB="1201000200000040402000750001010203010902270001010080fa0904000003ff000000070501020002000705810200020007058402000200"], 0x0)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000100)='\x00'/64)
nanosleep(&(0x7f0000000200)={0x0, 0x1dcd6500}, 0x0)
r1 = syz_open_dev$video(&(0x7f0000000000), 0x0, 0x2)
read(r1, &(0x7f0000000300)=""/4096, 0x1000)
ioctl$VIDIOC_STREAMON(r1, 0x40045612, &(0x7f0000000400)=0x1)
r2 = syz_open_dev$video(&(0x7f0000000000), 0x1, 0x2)
read(r2, &(0x7f0000000300)=""/4096, 0x1000)
ioctl$VIDIOC_STREAMON(r2, 0x40045612, &(0x7f0000000400)=0x1)
r3 = syz_open_dev$dvb_dvr(&(0x7f0000000500), 0x0, 0x0)
read(r3, &(0x7f0000000300)=""/4096, 0x0)
r4 = syz_open_dev$dvb_demux(&(0x7f0000000600), 0x0, 0x2)
ioctl$DVB_DEMUX_DMX_START(r4, 0x6f29)
nanosleep(&(0x7f0000000200)={0x0, 0x5f5e100}, 0x0)
executing program 2:
r0 = socket$nl_rdma(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x38, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'lo\x00'}}]}, 0x38}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:01.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 0:
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, &(0x7f0000000100)='+p\n\x00', 0x3)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./proc\x00', &(0x7f00000001c0)='proc\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/dynamic_debug/control\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='+p\n\x00', 0x3)
write(r1, &(0x7f0000000280)='file messenger.c +p\n\x00', 0x14)
r2 = fsopen(&(0x7f0000000300)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f0000000340)='source\x00', &(0x7f0000000380)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f00000003c0)='mount_timeout\x00', &(0x7f0000000400)='1\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/class/mtd/mtd0/type\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200), 0x20)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./sys/class/mtd/mtd0/flags\x00', 0x0, 0x0)
read(r1, &(0x7f0000000300), 0x20)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/virtio-pci/module/version\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1b6)
ftruncate(r0, 0x1000000)
r1 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file1\x00', 0x42, 0x1b6)
ftruncate(r2, 0x1000000)
r3 = syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x2)
ioctl$LOOP_SET_FD(r3, 0x4c00, r2)
r4 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file2\x00', 0x42, 0x1b6)
ftruncate(r4, 0x1000000)
r5 = syz_open_dev$loop(&(0x7f0000000140), 0x2, 0x2)
ioctl$LOOP_SET_FD(r5, 0x4c00, r4)
r6 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r6, 0xc138fd03, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
ioctl(r6, 0xc138fd00, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='foo 2049\n', 0x9)
close(r0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./config/cluster/ocfs2/node/node0/ipv4_port\x00', 0x1, 0x0)
write(r3, &(0x7f0000000240)='7777\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r4, &(0x7f00000002c0)='0\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r5, &(0x7f0000000340)='1\n', 0x2)
close(r5)
mkdir(&(0x7f0000000380)='./config/cluster/ocfs2/heartbeat/hb0\x00', 0x1ff)
r6 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./config/cluster/ocfs2/heartbeat/hb0/block_bytes\x00', 0x1, 0x0)
write(r6, &(0x7f0000000400)='512\n', 0x4)
close(r6)
r7 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r7, &(0x7f0000000480)='1\n', 0x2)
close(r7)
r8 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r8, &(0x7f0000000500)='2\n', 0x2)
close(r8)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
write(r9, &(0x7f0000000580)='3\n', 0x2)
close(r9)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
nanosleep(&(0x7f0000000680)={0x1}, 0x0)
executing program 2:
r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2)
write(0xffffffffffffffff, &(0x7f0000000200)="0000000000000000000001000000000000000000703100"/164, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}})
write(0xffffffffffffffff, &(0x7f0000000300)="000000000000000000000000000000000100"/160, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000001c0)={0x2, 0x0, 0x0, &(0x7f00000003c0)={0x0, 0x0, 0x1}})

program crashed: KASAN: slab-use-after-free Write in nfsd_shutdown_threads
bisect: bisecting 16 programs
bisect: split chunks (needed=false): <16>
bisect: split chunk #0 of len 16 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [14, 2, 4, 14, 6, 4, 17, 5, 38, 5]
detailed listing:
executing program 1:
r0 = syz_usb_connect(0x3, 0x39, &(0x7f0000000040)=ANY=[@ANYBLOB="1201000200000040402000750001010203010902270001010080fa0904000003ff000000070501020002000705810200020007058402000200"], 0x0)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000100)='\x00'/64)
nanosleep(&(0x7f0000000200)={0x0, 0x1dcd6500}, 0x0)
r1 = syz_open_dev$video(&(0x7f0000000000), 0x0, 0x2)
read(r1, &(0x7f0000000300)=""/4096, 0x1000)
ioctl$VIDIOC_STREAMON(r1, 0x40045612, &(0x7f0000000400)=0x1)
r2 = syz_open_dev$video(&(0x7f0000000000), 0x1, 0x2)
read(r2, &(0x7f0000000300)=""/4096, 0x1000)
ioctl$VIDIOC_STREAMON(r2, 0x40045612, &(0x7f0000000400)=0x1)
r3 = syz_open_dev$dvb_dvr(&(0x7f0000000500), 0x0, 0x0)
read(r3, &(0x7f0000000300)=""/4096, 0x0)
r4 = syz_open_dev$dvb_demux(&(0x7f0000000600), 0x0, 0x2)
ioctl$DVB_DEMUX_DMX_START(r4, 0x6f29)
nanosleep(&(0x7f0000000200)={0x0, 0x5f5e100}, 0x0)
executing program 2:
r0 = socket$nl_rdma(0x10, 0x3, 0x14)
sendmsg$RDMA_NLDEV_CMD_NEWLINK(r0, &(0x7f0000000200)={&(0x7f0000000000), 0xc, &(0x7f0000000100)={&(0x7f0000000040)={0x38, 0x1403, 0x1, 0x0, 0x0, "", [{{0x9, 0x2, 'syz0\x00'}, {0x8, 0x41, 'rxe\x00'}, {0x14, 0x33, 'lo\x00'}}]}, 0x38}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/devices/0000:00:01.0/vendor\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./debug\x00', &(0x7f0000000040)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p\n\x00', 0x3)
write(r0, &(0x7f0000000140)='file messenger.c +p\n\x00', 0x14)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./proc\x00', &(0x7f00000001c0)='proc\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./proc/dynamic_debug/control\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='+p\n\x00', 0x3)
write(r1, &(0x7f0000000280)='file messenger.c +p\n\x00', 0x14)
r2 = fsopen(&(0x7f0000000300)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f0000000340)='source\x00', &(0x7f0000000380)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r2, 0x1, &(0x7f00000003c0)='mount_timeout\x00', &(0x7f0000000400)='1\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r2, 0x6, 0x0, 0x0, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/class/mtd/mtd0/type\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200), 0x20)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./sys/class/mtd/mtd0/flags\x00', 0x0, 0x0)
read(r1, &(0x7f0000000300), 0x20)
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/drivers/virtio-pci/module/version\x00', 0x0, 0x0)
read(r0, &(0x7f0000000200)=""/256, 0x100)
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, 0x1b6)
ftruncate(r0, 0x1000000)
r1 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file1\x00', 0x42, 0x1b6)
ftruncate(r2, 0x1000000)
r3 = syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x2)
ioctl$LOOP_SET_FD(r3, 0x4c00, r2)
r4 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file2\x00', 0x42, 0x1b6)
ftruncate(r4, 0x1000000)
r5 = syz_open_dev$loop(&(0x7f0000000140), 0x2, 0x2)
ioctl$LOOP_SET_FD(r5, 0x4c00, r4)
r6 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r6, 0xc138fd03, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
ioctl(r6, 0xc138fd00, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='foo 2049\n', 0x9)
close(r0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 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, &(0x7f0000000200)='./config/cluster/ocfs2/node/node0/ipv4_port\x00', 0x1, 0x0)
write(r3, &(0x7f0000000240)='7777\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r4, &(0x7f00000002c0)='0\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r5, &(0x7f0000000340)='1\n', 0x2)
close(r5)
mkdir(&(0x7f0000000380)='./config/cluster/ocfs2/heartbeat/hb0\x00', 0x1ff)
r6 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./config/cluster/ocfs2/heartbeat/hb0/block_bytes\x00', 0x1, 0x0)
write(r6, &(0x7f0000000400)='512\n', 0x4)
close(r6)
r7 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r7, &(0x7f0000000480)='1\n', 0x2)
close(r7)
r8 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r8, &(0x7f0000000500)='2\n', 0x2)
close(r8)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
write(r9, &(0x7f0000000580)='3\n', 0x2)
close(r9)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
nanosleep(&(0x7f0000000680)={0x1}, 0x0)
executing program 2:
r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2)
write(0xffffffffffffffff, &(0x7f0000000200)="0000000000000000000001000000000000000000703100"/164, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}})
write(0xffffffffffffffff, &(0x7f0000000300)="000000000000000000000000000000000100"/160, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000001c0)={0x2, 0x0, 0x0, &(0x7f00000003c0)={0x0, 0x0, 0x1}})

program did not crash
bisect: testing without sub-chunk 2/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 11, 11, 8, 8, 5, 17, 5, 38, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/e1000\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./sys/bus/pci/drivers/e1000e\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/drivers/ahci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/pci/drivers/virtio-pci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/platform/drivers/serial8250\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/bus/platform/drivers/alarmtimer\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./nfsd/versions\x00', 0x2, 0x0)
write(r1, &(0x7f0000000540)='-2 -3 +4\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/threads\x00', 0x2, 0x0)
write(r2, &(0x7f0000000180)='1\n', 0x2)
close(r2)
executing program 0:
r0 = syz_usb_connect(0x3, 0x40, &(0x7f0000001300)=ANY=[@ANYBLOB="12010002000000407205feca00010000000109022e0001010080fa0904000004ff000000070501020002000705810200020007050204e5"], 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000100)="900100"/64)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000300)="9101000000112233445500"/64)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
nanosleep(&(0x7f0000000500)={0x0, 0x5f5e100}, 0x0)
r1 = socket(0x8, 0x2, 0x0)
setsockopt(r1, 0x108, 0x42020054, &(0x7f0000000200)="010000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000005000000", 0x54)
connect(r1, &(0x7f0000000600)=@generic={0x8}, 0xc)
sendto(r1, &(0x7f0000000700)="0123456789abcdef00"/64, 0x40, 0x0, 0x0, 0x0)
close(r1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/class/fcloop/ctl/add_target_port\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/class/fcloop/ctl/del_target_port\x00', 0x1, 0x0)
write(r1, &(0x7f0000000600)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r1)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)
executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x34, &(0x7f0000000000)=ANY=[@ANYBLOB="120100020000004086800000000000000001090222000101008032090400000103000000092111010001222f0007058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="00222f00000005200933a10185010a0e03150026e80375209501b1020a16031500250175089501b1020a19031500250175089501b1020a3404159c26e803751095018102c0"], 0x0}, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
syz_usb_disconnect(r0)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x42, 0x1b6)
ftruncate(r0, 0x1000000)
r1 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file1\x00', 0x42, 0x1b6)
ftruncate(r2, 0x1000000)
r3 = syz_open_dev$loop(&(0x7f0000000140), 0x1, 0x2)
ioctl$LOOP_SET_FD(r3, 0x4c00, r2)
r4 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./file2\x00', 0x42, 0x1b6)
ftruncate(r4, 0x1000000)
r5 = syz_open_dev$loop(&(0x7f0000000140), 0x2, 0x2)
ioctl$LOOP_SET_FD(r5, 0x4c00, r4)
r6 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./dev/mapper/control\x00', 0x2, 0x0)
ioctl(r6, 0xc138fd03, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
ioctl(r6, 0xc138fd00, &(0x7f0000000300)="0400000000000000000000003801000038010000000000000000000000000000000000000000000000000000000000006364657600")
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000140)='foo 2049\n', 0x9)
close(r0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000040)='configfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./backing_file\x00', 0x42, 0x1ff)
ftruncate(r0, 0x200000)
r1 = syz_open_dev$loop(&(0x7f00000000c0), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
dup2(r1, 0x3)
mkdir(&(0x7f0000000100)='./config/cluster/ocfs2\x00', 0x1ff)
mkdir(&(0x7f0000000140)='./config/cluster/ocfs2/node/node0\x00', 0x1ff)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./config/cluster/ocfs2/node/node0/ipv4_address\x00', 0x1, 0x0)
write(r2, &(0x7f00000001c0)='127.0.0.1\n', 0xa)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./config/cluster/ocfs2/node/node0/ipv4_port\x00', 0x1, 0x0)
write(r3, &(0x7f0000000240)='7777\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./config/cluster/ocfs2/node/node0/num\x00', 0x1, 0x0)
write(r4, &(0x7f00000002c0)='0\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/cluster/ocfs2/node/node0/local\x00', 0x1, 0x0)
write(r5, &(0x7f0000000340)='1\n', 0x2)
close(r5)
mkdir(&(0x7f0000000380)='./config/cluster/ocfs2/heartbeat/hb0\x00', 0x1ff)
r6 = openat(0xffffffffffffff9c, &(0x7f00000003c0)='./config/cluster/ocfs2/heartbeat/hb0/block_bytes\x00', 0x1, 0x0)
write(r6, &(0x7f0000000400)='512\n', 0x4)
close(r6)
r7 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./config/cluster/ocfs2/heartbeat/hb0/start_block\x00', 0x1, 0x0)
write(r7, &(0x7f0000000480)='1\n', 0x2)
close(r7)
r8 = openat(0xffffffffffffff9c, &(0x7f00000004c0)='./config/cluster/ocfs2/heartbeat/hb0/blocks\x00', 0x1, 0x0)
write(r8, &(0x7f0000000500)='2\n', 0x2)
close(r8)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000540)='./config/cluster/ocfs2/heartbeat/hb0/dev\x00', 0x1, 0x0)
write(r9, &(0x7f0000000580)='3\n', 0x2)
close(r9)
mkdir(&(0x7f00000005c0)='./dlmfs\x00', 0x1ff)
mount(0x0, &(0x7f00000005c0)='./dlmfs\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0)
mkdir(&(0x7f0000000640)='./dlmfs/domain0\x00', 0x1ff)
nanosleep(&(0x7f0000000680)={0x1}, 0x0)
executing program 2:
r0 = syz_open_dev$mtd(&(0x7f0000000000), 0x0, 0x2)
write(0xffffffffffffffff, &(0x7f0000000200)="0000000000000000000001000000000000000000703100"/164, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000000c0)={0x1, 0x0, 0x0, &(0x7f0000000100)={0x0, 0x10000, 0x1}})
write(0xffffffffffffffff, &(0x7f0000000300)="000000000000000000000000000000000100"/160, 0x98)
ioctl$BLKPG(r0, 0x1269, &(0x7f00000001c0)={0x2, 0x0, 0x0, &(0x7f00000003c0)={0x0, 0x0, 0x1}})

program crashed: WARNING in svc_destroy
bisect: the chunk can be dropped
bisect: testing without sub-chunk 3/3
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 11, 11, 8, 8, 5]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/pci/drivers/e1000\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./sys/bus/pci/drivers/e1000e\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/bus/pci/drivers/ahci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/pci/drivers/virtio-pci\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/platform/drivers/serial8250\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000600)='./sys/bus/platform/drivers/alarmtimer\x00', 0x0, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./nfsd/versions\x00', 0x2, 0x0)
write(r1, &(0x7f0000000540)='-2 -3 +4\n', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/threads\x00', 0x2, 0x0)
write(r2, &(0x7f0000000180)='1\n', 0x2)
close(r2)
executing program 0:
r0 = syz_usb_connect(0x3, 0x40, &(0x7f0000001300)=ANY=[@ANYBLOB="12010002000000407205feca00010000000109022e0001010080fa0904000004ff000000070501020002000705810200020007050204e5"], 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000100)="900100"/64)
syz_usb_ep_write(r0, 0x81, 0x40, &(0x7f0000000300)="9101000000112233445500"/64)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
nanosleep(&(0x7f0000000500)={0x0, 0x5f5e100}, 0x0)
r1 = socket(0x8, 0x2, 0x0)
setsockopt(r1, 0x108, 0x42020054, &(0x7f0000000200)="010000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000005000000", 0x54)
connect(r1, &(0x7f0000000600)=@generic={0x8}, 0xc)
sendto(r1, &(0x7f0000000700)="0123456789abcdef00"/64, 0x40, 0x0, 0x0, 0x0)
close(r1)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/class/fcloop/ctl/add_target_port\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/class/fcloop/ctl/del_target_port\x00', 0x1, 0x0)
write(r1, &(0x7f0000000600)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r1)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)
executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x34, &(0x7f0000000000)=ANY=[@ANYBLOB="120100020000004086800000000000000001090222000101008032090400000103000000092111010001222f0007058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="00222f00000005200933a10185010a0e03150026e80375209501b1020a16031500250175089501b1020a19031500250175089501b1020a3404159c26e803751095018102c0"], 0x0}, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
syz_usb_disconnect(r0)

program crashed: WARNING in svc_destroy
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <6>
bisect: split chunk #0 of len 6 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 8, 5]
detailed listing:
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/class/fcloop/ctl/add_target_port\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/class/fcloop/ctl/del_target_port\x00', 0x1, 0x0)
write(r1, &(0x7f0000000600)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r1)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)
executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x34, &(0x7f0000000000)=ANY=[@ANYBLOB="120100020000004086800000000000000001090222000101008032090400000103000000092111010001222f0007058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="00222f00000005200933a10185010a0e03150026e80375209501b1020a16031500250175089501b1020a19031500250175089501b1020a3404159c26e803751095018102c0"], 0x0}, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
syz_usb_disconnect(r0)

program crashed: WARNING in svc_destroy
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): <3>
bisect: split chunk #0 of len 3 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-nanosleep-syz_usb_disconnect
detailed listing:
executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x34, &(0x7f0000000000)=ANY=[@ANYBLOB="120100020000004086800000000000000001090222000101008032090400000103000000092111010001222f0007058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f0000000280)=ANY=[@ANYBLOB="00222f00000005200933a10185010a0e03150026e80375209501b1020a16031500250175089501b1020a19031500250175089501b1020a3404159c26e803751095018102c0"], 0x0}, 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x1dcd6500}, 0x0)
syz_usb_disconnect(r0)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 8]
detailed listing:
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000040)='./sys\x00', &(0x7f0000000080)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/class/fcloop/ctl/add_target_port\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/class/fcloop/ctl/del_target_port\x00', 0x1, 0x0)
write(r1, &(0x7f0000000600)='wwnn=0x3333333333333333,wwpn=0x4444444444444444', 0x2f)
close(r1)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)

program crashed: WARNING in svc_destroy
bisect: the chunk can be dropped
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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-close-openat-write-close
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)

program crashed: WARNING in svc_destroy
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: 1 programs left: 

executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)


bisect: trying to concatenate
bisect: concatenate 1 entries
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-close-openat-write-close
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)
close(r1)

program crashed: WARNING in svc_destroy
bisect: concatenation succeeded
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000240)='1\n\x00', 0x2)

program crashed: WARNING in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-close-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/pool_threads\x00', 0x2, 0x0)

program crashed: WARNING in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-close
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)
close(r0)

program crashed: WARNING in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program crashed: WARNING in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
simplifying C reproducer
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING 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: WARNING 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: WARNING 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: WARNING 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
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: WARNING 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: WARNING 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', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program crashed: WARNING 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', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program crashed: WARNING 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', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='udp 20000\n\x00', 0xa)

program crashed: WARNING in svc_destroy
validation run: crashed=true
reproducing took 1h4m41.64904508s
repro crashed as (corrupted=false):
------------[ cut here ]------------
SVC: permsocks remain for nfsd
WARNING: CPU: 0 PID: 5937 at net/sunrpc/svc.c:645 svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:644
Modules linked in:
CPU: 0 PID: 5937 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+0x2ed/0x390 net/sunrpc/svc.c:644
Code: 24 49 83 c7 20 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 f2 d1 31 f8 49 8b 37 48 c7 c7 e0 87 d9 8b e8 c3 09 a3 f7 <0f> 0b e9 78 fd ff ff e8 b7 45 d9 f7 c6 05 73 72 c8 04 01 4c 89 e0
RSP: 0018:ffffc9000332fae0 EFLAGS: 00010246
RAX: 609c092a51be9400 RBX: ffff888076e86850 RCX: ffff888027f73c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000332fcb8 R08: ffffc9000332f6e7 R09: 1ffff92000665edc
R10: dffffc0000000000 R11: fffff52000665edd R12: ffff888076e86800
R13: dffffc0000000000 R14: ffff888076e86850 R15: ffffffff8d3e1e40
FS:  0000555595107500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b10ec2aca8 CR3: 000000002603a000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:124 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:765 [inline]
 __write_ports fs/nfsd/nfsctl.c:791 [inline]
 write_ports+0xb99/0xfa0 fs/nfsd/nfsctl.c:844
 nfsctl_transaction_write+0x10c/0x150 fs/nfsd/nfsctl.c:113
 vfs_write+0x299/0x9a0 fs/read_write.c:582
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f90a319e159
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:00007ffddf6a9838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f90a3425fa0 RCX: 00007f90a319e159
RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000003
RBP: 00007f90a323503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f90a3425fac R14: 00007f90a3425fa0 R15: 00007f90a3425fa0
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
SVC: permsocks remain for nfsd
WARNING: CPU: 0 PID: 5937 at net/sunrpc/svc.c:645 svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:644
Modules linked in:
CPU: 0 PID: 5937 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+0x2ed/0x390 net/sunrpc/svc.c:644
Code: 24 49 83 c7 20 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 f2 d1 31 f8 49 8b 37 48 c7 c7 e0 87 d9 8b e8 c3 09 a3 f7 <0f> 0b e9 78 fd ff ff e8 b7 45 d9 f7 c6 05 73 72 c8 04 01 4c 89 e0
RSP: 0018:ffffc9000332fae0 EFLAGS: 00010246
RAX: 609c092a51be9400 RBX: ffff888076e86850 RCX: ffff888027f73c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000332fcb8 R08: ffffc9000332f6e7 R09: 1ffff92000665edc
R10: dffffc0000000000 R11: fffff52000665edd R12: ffff888076e86800
R13: dffffc0000000000 R14: ffff888076e86850 R15: ffffffff8d3e1e40
FS:  0000555595107500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b10ec2aca8 CR3: 000000002603a000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:124 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:765 [inline]
 __write_ports fs/nfsd/nfsctl.c:791 [inline]
 write_ports+0xb99/0xfa0 fs/nfsd/nfsctl.c:844
 nfsctl_transaction_write+0x10c/0x150 fs/nfsd/nfsctl.c:113
 vfs_write+0x299/0x9a0 fs/read_write.c:582
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f90a319e159
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:00007ffddf6a9838 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f90a3425fa0 RCX: 00007f90a319e159
RDX: 000000000000000a RSI: 0000200000000180 RDI: 0000000000000003
RBP: 00007f90a323503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f90a3425fac R14: 00007f90a3425fa0 R15: 00007f90a3425fa0
 </TASK>