Extracting prog: 40m38.159683602s
Minimizing prog: 16m46.471674174s
Simplifying prog options: 0s
Extracting C: 50.454750332s
Simplifying C: 8m24.219074375s


extracting reproducer from 29 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mount-openat-write-close-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)

program did not crash
single: failed to extract reproducer
bisect: bisecting 29 programs with base timeout 30s
testing program (duration=37s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [10, 10, 3, 4, 7, 15, 10, 4, 3, 4, 14, 13, 4, 4, 9, 7, 4, 10, 7, 4, 4, 10, 4, 4, 3, 4, 13, 14, 4]
detailed listing:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
listen(r2, 0x5)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
connect$inet(r3, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r1, &(0x7f0000000240)='udp 2049\n\x00', 0x9)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2) (async)
executing program 4:
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 4:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r1, &(0x7f0000000240)='udp 2049\n\x00', 0x9)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2) (async)
close(r2)
r3 = socket$inet(0x2, 0x2, 0x0)
connect$inet(r3, &(0x7f0000000300)={0x2, 0x8008, @loopback}, 0x10)
write(r3, &(0x7f0000000400)="000000000000000000000002000186a30000000400000001000000010000002000"/56, 0x38)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
listen(r2, 0x5)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
connect$inet(r3, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000040)='proc\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='1\n\x00', 0x2)
executing program 3:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
r5 = accept(r3, 0x0, 0x0)
read(r5, &(0x7f0000000500), 0xa)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(r3, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(r3, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1\n\x00', 0x2) (async)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
openat(0xffffffffffffff9c, &(0x7f0000000380)='./proc/net/rpc/auth.rpcsec.context/channel\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./nfsd/versions\x00', 0x2, 0x0)
write(r0, &(0x7f0000000200)='-2 -3 +4\n\x00', 0x9)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
bind$inet(0xffffffffffffffff, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(0xffffffffffffffff, 0x5)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
connect$inet(r2, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='1\n\x00', 0x2)
executing program 1:
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./rec\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/nfsv4recoverydir\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='./rec\n\x00', 0x6)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', 0x0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
bind$inet(0xffffffffffffffff, &(0x7f0000000280)={0x2, 0x4e24, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(0xffffffffffffffff, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(0xffffffffffffffff, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
write(r4, &(0x7f0000000400)="0123456789", 0xa)
read(0xffffffffffffffff, &(0x7f0000000500), 0xa)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)

program crashed: kernel BUG in svc_destroy
bisect: bisecting 29 programs
bisect: split chunks (needed=false): <28>
bisect: split chunk #0 of len 28 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=34s, {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}}): [14, 13, 4, 4, 9, 7, 4, 10, 7, 4, 4, 10, 4, 4, 3, 4, 13, 14, 4]
detailed listing:
executing program 3:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
r5 = accept(r3, 0x0, 0x0)
read(r5, &(0x7f0000000500), 0xa)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(r3, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(r3, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1\n\x00', 0x2) (async)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
openat(0xffffffffffffff9c, &(0x7f0000000380)='./proc/net/rpc/auth.rpcsec.context/channel\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./nfsd/versions\x00', 0x2, 0x0)
write(r0, &(0x7f0000000200)='-2 -3 +4\n\x00', 0x9)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
bind$inet(0xffffffffffffffff, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(0xffffffffffffffff, 0x5)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
connect$inet(r2, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='1\n\x00', 0x2)
executing program 1:
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./rec\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/nfsv4recoverydir\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='./rec\n\x00', 0x6)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', 0x0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
bind$inet(0xffffffffffffffff, &(0x7f0000000280)={0x2, 0x4e24, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(0xffffffffffffffff, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(0xffffffffffffffff, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
write(r4, &(0x7f0000000400)="0123456789", 0xa)
read(0xffffffffffffffff, &(0x7f0000000500), 0xa)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)

program crashed: kernel BUG in svc_destroy
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [10, 10, 4, 4, 3, 4, 13, 14, 4]
detailed listing:
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
bind$inet(0xffffffffffffffff, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(0xffffffffffffffff, 0x5)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
connect$inet(r2, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='1\n\x00', 0x2)
executing program 1:
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./rec\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./nfsd/nfsv4recoverydir\x00', 0x2, 0x0)
write(r0, &(0x7f0000000180)='./rec\n\x00', 0x6)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', 0x0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
executing program 3:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
bind$inet(0xffffffffffffffff, &(0x7f0000000280)={0x2, 0x4e24, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(0xffffffffffffffff, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(0xffffffffffffffff, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(0xffffffffffffffff, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
write(r4, &(0x7f0000000400)="0123456789", 0xa)
read(0xffffffffffffffff, &(0x7f0000000500), 0xa)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)

program did not crash
bisect: testing without sub-chunk 3/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [14, 13, 4, 4, 9, 7, 4, 10, 7, 4, 4]
detailed listing:
executing program 3:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000000), 0xffffffffffffffff)
sendmsg$MPTCP_PM_CMD_SET_LIMITS(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000000c0)={0x24, r1, 0x1, 0x0, 0x0, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x8}, @MPTCP_PM_ATTR_SUBFLOWS={0x8, 0x3, 0x8}]}, 0x24}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./proc\x00', &(0x7f0000000240)='proc\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./proc/sys/net/mptcp/add_addr_timeout\x00', 0x1, 0x0)
write(r2, &(0x7f00000002c0)='1\n\x00', 0x2)
r3 = socket$inet_mptcp(0x2, 0x1, 0x106)
bind$inet(r3, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
listen(r3, 0x5)
r4 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r4, &(0x7f0000000300)={0x2, 0x1f40, @loopback}, 0x10)
r5 = accept(r3, 0x0, 0x0)
read(r5, &(0x7f0000000500), 0xa)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/sys/net/sctp/addip_enable\x00', 0x1, 0x0)
write(r0, &(0x7f00000000c0)='1', 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/sys/net/sctp/addip_noauth_enable\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='1', 0x1)
r2 = socket$inet_sctp(0x2, 0x1, 0x84)
bind$inet(r2, &(0x7f0000000200)={0x2, 0x4e23, @loopback}, 0x10)
listen(r2, 0x5)
r3 = socket$inet_sctp(0x2, 0x1, 0x84)
setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000000300)=[@in={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x2a}}], 0x10)
connect$inet(r3, &(0x7f0000000400)={0x2, 0x4e23, @loopback}, 0x10)
setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(r3, 0x84, 0x5, &(0x7f0000000500)={0x0, @in={{0x2, 0x4e24, @dev={0xac, 0x14, 0x14, 0x2a}}}}, 0x84)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
close(r0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='nfsd\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='-3 +4\n\x00', 0x6)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./proc/net/rpc/auth.unix.ip/channel\x00', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f00000002c0)='1\n\x00', 0x2) (async)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
openat(0xffffffffffffff9c, &(0x7f0000000380)='./proc/net/rpc/auth.rpcsec.context/channel\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./nfsd/versions\x00', 0x2, 0x0)
write(r0, &(0x7f0000000200)='-2 -3 +4\n\x00', 0x9)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)

program crashed: KASAN: use-after-free Read in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <10>
bisect: split chunk #0 of len 10 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 4, 10, 7, 4, 4]
detailed listing:
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
openat(0xffffffffffffff9c, &(0x7f0000000380)='./proc/net/rpc/auth.rpcsec.context/channel\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./nfsd/versions\x00', 0x2, 0x0)
write(r0, &(0x7f0000000200)='-2 -3 +4\n\x00', 0x9)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)

program crashed: KASAN: use-after-free Read in nfsd_svc
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): <5>
bisect: split chunk #0 of len 5 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [10, 4, 4]
detailed listing:
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 1:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./proc\x00', &(0x7f0000000040)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./proc/self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='8\n\x00', 0x2)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 4, 10, 7]
detailed listing:
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
openat(0xffffffffffffff9c, &(0x7f0000000380)='./proc/net/rpc/auth.rpcsec.context/channel\x00', 0x1, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./nfsd\x00', &(0x7f00000000c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./nfsd/versions\x00', 0x2, 0x0)
write(r0, &(0x7f0000000200)='-2 -3 +4\n\x00', 0x9)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
bisect: the chunk can be dropped
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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [10, 7]
detailed listing:
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG 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: 2 programs left: 

executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000340)='2\n', 0x2)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)


bisect: trying to concatenate
bisect: concatenate 2 entries
minimizing program #0 before concatenation
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [9, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./nfsd/threads\x00', 0x1, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [8, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
close(r0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [6, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(r0, &(0x7f0000000240)='+3 -4.0 -4.1\n', 0xd)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [2, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 7]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 7]
detailed listing:
executing program 0:
executing program 2:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
minimized 10 calls -> 0 calls
minimizing program #1 before concatenation
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 6]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 6]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/versions\x00', 0x1, 0x0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 6]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 5]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 5]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(&(0x7f0000000040)=@filename='proc\x00', &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 5]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [0, 4]
detailed listing:
executing program 4:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
minimized 7 calls -> 4 calls
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
bisect: concatenation succeeded
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write
detailed listing:
executing program 0:
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000140)=@filename='nfsd\x00', &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
simplifying C reproducer
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: kernel BUG in svc_destroy
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
testing program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./nfsd\x00', &(0x7f00000001c0)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f00000002c0)='tcp 2049\n', 0x9)

program crashed: kernel BUG in svc_destroy
validation run: crashed=true
reproducing took 1h12m1.897201141s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:578!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4513 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
lr : svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
sp : ffff800020fc7930
x29: ffff800020fc7930 x28: 1fffe0001a0048ff x27: ffff0000d1fd9c00
x26: dfff800000000000 x25: ffff7000041f8f2c x24: ffff800020fc7960
x23: ffff0000d53c1c80 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000d6510c68 x19: ffff0000d6510c50 x18: 1fffe00033e7277e
x17: ffff80001537d000 x16: ffff8000082dd244 x15: 000000000004ffff
x14: 0000000000000001 x13: 1fffe00033e728f0 x12: 0000000000000000
x11: ff00800010f0c48c x10: 0000000000000000 x9 : ffff800010f0c48c
x8 : ffff0000d1fd9c00 x7 : ffff8000083b9688 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
 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+0x850/0x9f0 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x114/0x164 fs/nfsd/nfsctl.c:114
 vfs_write+0x2a8/0x7c8 fs/read_write.c:582
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 91026260 97c3a73c 17ffffc8 97c3a6cd (d4210000) 
---[ end trace 0000000000000000 ]---

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at net/sunrpc/svc.c:578!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4513 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
lr : svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
sp : ffff800020fc7930
x29: ffff800020fc7930 x28: 1fffe0001a0048ff x27: ffff0000d1fd9c00
x26: dfff800000000000 x25: ffff7000041f8f2c x24: ffff800020fc7960
x23: ffff0000d53c1c80 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000d6510c68 x19: ffff0000d6510c50 x18: 1fffe00033e7277e
x17: ffff80001537d000 x16: ffff8000082dd244 x15: 000000000004ffff
x14: 0000000000000001 x13: 1fffe00033e728f0 x12: 0000000000000000
x11: ff00800010f0c48c x10: 0000000000000000 x9 : ffff800010f0c48c
x8 : ffff0000d1fd9c00 x7 : ffff8000083b9688 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 svc_destroy+0x178/0x184 net/sunrpc/svc.c:578
 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+0x850/0x9f0 fs/nfsd/nfsctl.c:847
 nfsctl_transaction_write+0x114/0x164 fs/nfsd/nfsctl.c:114
 vfs_write+0x2a8/0x7c8 fs/read_write.c:582
 ksys_write+0x12c/0x228 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 91026260 97c3a73c 17ffffc8 97c3a6cd (d4210000) 
---[ end trace 0000000000000000 ]---