Extracting prog: 35m31.87967538s
Minimizing prog: 32m54.777099727s
Simplifying prog options: 0s
Extracting C: 39.422038912s
Simplifying C: 8m23.052196805s


extracting reproducer from 37 programs
testing a last program of every proc
single: executing 7 programs separately with timeout 6m0s
testing program (duration=6m0s, {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}}): socket$inet6_mptcp-bind$inet6-listen-socket$packet-socket$inet_mptcp-connect$inet-socket$nl_generic-syz_genetlink_get_family_id$mptcp-sendmsg$MPTCP_PM_CMD_ADD_ADDR-socket$nl_generic-syz_genetlink_get_family_id$mptcp-sendmsg$MPTCP_PM_CMD_DEL_ADDR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
bind$inet6(r0, &(0x7f0000000080)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x4)
socket$packet(0x11, 0x3, 0x300)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_ADD_ADDR(r2, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000003c0)={&(0x7f00000004c0)={0x28, r3, 0x1, 0x70bd2c, 0x0, {}, [@MPTCP_PM_ATTR_ADDR={0x14, 0x1, 0x0, 0x1, [@MPTCP_PM_ADDR_ATTR_FAMILY={0x6, 0x1, 0x2}, @MPTCP_PM_ADDR_ATTR_ADDR4={0x8, 0x3, @local}]}]}, 0x28}}, 0x0)
r4 = socket$nl_generic(0x10, 0x3, 0x10)
r5 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000040), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_DEL_ADDR(r4, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000280)={0x20, r5, 0x7, 0x3, 0x1fff, {}, [@MPTCP_PM_ATTR_ADDR={0xc, 0x1, 0x0, 0x1, [@MPTCP_PM_ADDR_ATTR_ID={0x5, 0x2, 0x1}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x48040}, 0x0)

program did not crash
testing program (duration=6m0s, {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}}): socketpair$unix-signalfd4-syz_io_uring_setup-syz_io_uring_submit-io_uring_enter-timer_create-fcntl$lock-mprotect-timer_settime-mmap-pipe-splice
detailed listing:
executing program 0:
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={<r0=>0xffffffffffffffff})
r1 = signalfd4(0xffffffffffffffff, &(0x7f0000000140)={[0xffeffffffffffffa]}, 0x8, 0x800)
r2 = syz_io_uring_setup(0xf08, &(0x7f0000000400)={0x0, 0x595d, 0x1000, 0x20000, 0x1000051, 0x0, r1}, &(0x7f0000000100)=<r3=>0x0, &(0x7f0000000000)=<r4=>0x0, &(0x7f0000000080)=<r5=>0x0)
syz_io_uring_submit(r3, r4, r5, &(0x7f0000000a00)=@IORING_OP_POLL_ADD={0x6, 0x10, 0x0, @fd=r1, 0x0, 0x0, 0x1, {0x259a}, 0x1})
io_uring_enter(r2, 0x2000, 0xfffffffd, 0x9, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000240)={0x0, 0x21}, &(0x7f0000000300))
fcntl$lock(0xffffffffffffffff, 0x25, &(0x7f0000000040)={0x0, 0x0, 0xfd8b, 0x5})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0)
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0x42792000)
pipe(&(0x7f00000000c0)={0xffffffffffffffff, <r6=>0xffffffffffffffff})
splice(r0, 0x0, r6, 0x0, 0x39000, 0x0)

program did not crash
testing program (duration=6m0s, {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}}): socket$inet_udp-setsockopt$SO_TIMESTAMPING-bind$inet-openat$pidfd-landlock_create_ruleset-landlock_restrict_self-openat$cgroup_ro-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-bpf$MAP_CREATE-bpf$OBJ_PIN_MAP
detailed listing:
executing program 0:
r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000080)=0x474c, 0x4)
bind$inet(r0, &(0x7f00000001c0)={0x2, 0x0, @local}, 0x10)
openat$pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0)
r1 = landlock_create_ruleset(&(0x7f0000000240)={0x1fff}, 0x10, 0x0)
landlock_restrict_self(r1, 0x0)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpuset.memory_pressure\x00', 0x275a, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(0xffffffffffffffff, 0x1, 0x0)
fchdir(r2)
r3 = bpf$MAP_CREATE(0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB="16000000000000000400000001"], 0x50)
bpf$OBJ_PIN_MAP(0x6, &(0x7f00000000c0)=@generic={&(0x7f0000000340)='./file0\x00', r3}, 0x18)

program did not crash
testing program (duration=6m0s, {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}}): ioctl$UI_SET_EVBIT-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-add_key
detailed listing:
executing program 0:
ioctl$UI_SET_EVBIT(0xffffffffffffffff, 0x40045564, 0x11)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x7, 0x100}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x1, &(0x7f00000000c0)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={<r1=>0xffffffffffffffff, <r2=>0xffffffffffffffff})
connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e)
sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6)
add_key(&(0x7f0000000000)='pkcs7_test\x00', 0x0, &(0x7f0000000100)="3081bb06092a864886f70d010702a081ad3081aa020101311b300a06082a811ccf55018311300d06096086480165030402010500300b06092a864886f70d010701317b303a0201013014300f310d300b0603550403130454657374020101300a06082a811ccf55018311300d06092a864886f70d0101010500040401020304303d0201013014300f310d300b0603550403130454657374020102300d06096086480165030402010500300d06092a864886f70d0101010500040401020304", 0xbe, 0xffffffffffffffff)

program did not crash
testing program (duration=6m0s, {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}}): newfstatat-syz_mount_image$erofs-openat-mmap-setsockopt$netlink_NETLINK_NO_ENOBUFS-mprotect-mmap-mremap-munlock-syz_clone-munlockall-mkdirat
detailed listing:
executing program 0:
newfstatat(0xffffffffffffff9c, &(0x7f0000000080)='.\x00', 0x0, 0x4000)
syz_mount_image$erofs(&(0x7f0000000180), &(0x7f0000000040)='./file1\x00', 0x808, &(0x7f0000000d40)=ANY=[@ANYRES8=0x0], 0x1, 0x1c2, &(0x7f00000002c0)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file2\x00', 0x80000, 0x40)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10012, r0, 0x4000)
setsockopt$netlink_NETLINK_NO_ENOBUFS(0xffffffffffffffff, 0x10e, 0x5, 0x0, 0x0)
mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x3)
mmap(&(0x7f00009fd000/0x600000)=nil, 0x600000, 0x2000001, 0x6031, 0xffffffffffffffff, 0x0)
mremap(&(0x7f0000ceb000/0x2000)=nil, 0x2000, 0x800000, 0x3, &(0x7f0000130000/0x800000)=nil)
munlock(&(0x7f00002a4000/0x2000)=nil, 0x2000)
syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0)
munlockall()
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys/kernel/tracing\x00', 0xec)

program did not crash
testing program (duration=6m0s, {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-close-openat-write-close-openat-write-close
detailed listing:
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)

program crashed: kernel BUG in svc_destroy
single: successfully extracted reproducer
found reproducer with 11 syscalls
minimizing guilty program
testing program (duration=2m4.495866382s, {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-close-openat-write-close-openat-write
detailed listing:
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)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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-close-openat-write-close-openat
detailed listing:
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)
openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/threads\x00', 0x2, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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-close-openat-write-close
detailed listing:
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)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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-close-openat-write
detailed listing:
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)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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-close-openat
detailed listing:
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)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./nfsd/versions\x00', 0x2, 0x0)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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-close
detailed listing:
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)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=2m4.495866382s, {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, &(0x7f0000000040)='./nfsd\x00', &(0x7f0000000080)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
reproducing took 1h21m55.301296346s
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: 4426 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:ffffc90003427b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88807d27e850 RCX: ffff88801ee5da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003427cb8 R08: ffffffff90b0f357 R09: 1ffffffff2161e6a
R10: dffffc0000000000 R11: fffffbfff2161e6b R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807d27e868 R15: 0000000000000001
FS:  0000555565347500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555565362a38 CR3: 000000007c605000 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: 0033:0x7efc4ff9e159
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:00007ffdf1fc0b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efc50225fa0 RCX: 00007efc4ff9e159
RDX: 0000000000000009 RSI: 0000200000000100 RDI: 0000000000000003
RBP: 00007efc5003506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc50225fac R14: 00007efc50225fa0 R15: 00007efc50225fa0
 </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:ffffc90003427b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88807d27e850 RCX: ffff88801ee5da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003427cb8 R08: ffffffff90b0f357 R09: 1ffffffff2161e6a
R10: dffffc0000000000 R11: fffffbfff2161e6b R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807d27e868 R15: 0000000000000001
FS:  0000555565347500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555565362a38 CR3: 000000007c605000 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: 4426 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:ffffc90003427b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88807d27e850 RCX: ffff88801ee5da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003427cb8 R08: ffffffff90b0f357 R09: 1ffffffff2161e6a
R10: dffffc0000000000 R11: fffffbfff2161e6b R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807d27e868 R15: 0000000000000001
FS:  0000555565347500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555565362a38 CR3: 000000007c605000 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: 0033:0x7efc4ff9e159
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:00007ffdf1fc0b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efc50225fa0 RCX: 00007efc4ff9e159
RDX: 0000000000000009 RSI: 0000200000000100 RDI: 0000000000000003
RBP: 00007efc5003506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efc50225fac R14: 00007efc50225fa0 R15: 00007efc50225fa0
 </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:ffffc90003427b10 EFLAGS: 00010293
RAX: ffffffff89583834 RBX: ffff88807d27e850 RCX: ffff88801ee5da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003427cb8 R08: ffffffff90b0f357 R09: 1ffffffff2161e6a
R10: dffffc0000000000 R11: fffffbfff2161e6b R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88807d27e868 R15: 0000000000000001
FS:  0000555565347500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555565362a38 CR3: 000000007c605000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400