Extracting prog: 2h24m29.738456534s
Minimizing prog: 1h50m17.719411808s
Simplifying prog options: 0s
Extracting C: 4m39.239234807s
Simplifying C: 36m41.05373583s


extracting reproducer from 30 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
single: failed to extract reproducer
bisect: bisecting 30 programs with base timeout 30s
testing program (duration=37s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 4, 8, 11, 6, 9, 7, 4, 26, 7, 11, 4, 4, 2, 6, 5, 7, 11, 5, 7, 4, 7, 3, 26, 3, 4, 8, 2, 6, 9]
detailed listing:
executing program 2:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r0, 0xc004743e, 0x110c23003f)
write$cgroup_devices(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64], 0xa)
executing program 2:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 0:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)
executing program 4:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x101401, 0x0)
r1 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r2)
sendmsg$TIPC_NL_BEARER_ENABLE(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r3, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(r0, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="18000000260001031dbd7002fadbdf25010000000400ae"], 0x18}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000300), 0x0)
recvmmsg(r0, &(0x7f00000003c0)=[{{0x0, 0x0, &(0x7f00000009c0)=[{&(0x7f0000000500)=""/157, 0x9d}, {&(0x7f00000027c0)=""/4133, 0x1025}, {&(0x7f0000000040)=""/185, 0xb9}, {&(0x7f0000000240)=""/127, 0x7f}, {&(0x7f0000000a40)=""/4104, 0x1008}, {&(0x7f0000000180)=""/65, 0x41}, {&(0x7f0000000300)=""/22, 0x16}], 0x7}, 0x10}, {{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0}, 0x38000000}, {{0x0, 0x0, 0x0}, 0x1}], 0x4, 0x40000102, 0x0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 1:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 2:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4)
connect$inet(r0, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x42}}, 0x10)
connect$inet(r0, &(0x7f0000000700)={0x2, 0x4e22, @empty}, 0x10)
executing program 4:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
r0 = socket$packet(0x11, 0x3, 0x300)
bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x1, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r0, 0x0)
write(r0, &(0x7f0000000000)="01", 0x1)
executing program 4:
r0 = socket$vsock_stream(0x28, 0x1, 0x0)
r1 = socket$pppl2tp(0x18, 0x1, 0x1)
ioctl$SIOCSIFMTU(r1, 0x8947, &(0x7f00000000c0)={'bond0\x00', 0x10001})
getsockopt(r0, 0x5, 0x80000001, &(0x7f0000000100)=""/42, 0x0)
syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
r2 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r2, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000002900)=ANY=[@ANYBLOB="140000001000010000000000000000000200000a20000000000a01080000000000000000020000000900010073797a300000000064000000090a010400000000000000000200000008000a40000000010900020073797a31000000000900010073797a300000000008000540000000080800034000000084200009801c0002800c00018008000140000000040c0001800800014000000004440000000c0a01010000000000000000020000000900020073797a31000000000900010073797a30000000001800038014000080100001800c0001"], 0xf0}}, 0x0)
executing program 0:
recvmmsg(0xffffffffffffffff, &(0x7f0000006840)=[{{0x0, 0x0, &(0x7f0000000480)=[{0x0}, {0x0}, {0x0}, {0x0}], 0x4}, 0x9a9}], 0x1, 0x40000021, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@text16={0x10, 0x0, 0x4b}], 0x1, 0x0, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, &(0x7f0000000200)="f7790066baa00066b86b4266ef66ba420066b8e20066ef0f29902cbb0000c4e2b1ba8c88d9000000666666440f38826b410f7842280f07b8010000000f01d9c4033921820f47a753fd", 0x49}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x7, 0x2, 0xe9b, 0x100, 0xd, 0x7f, 0x44233, 0x200, 0x80, 0x941, 0x8001, 0x6, 0x4, 0x4, 0x20000, 0xb], 0x4, 0x84340})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4400ae8f, &(0x7f0000000140)=@arm64={0x52, 0x6, 0x40, '\x00', 0x10000})
ioctl$KVM_RUN(r2, 0xae80, 0x0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./config\x00', 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000800)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000900)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f/dwFrameInterval\x00', 0x1, 0x0)
syz_open_procfs(0x0, &(0x7f00000001c0)='fd/3\x00')
executing program 2:
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x1002})
r0 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r1 = socket$nl_generic(0x10, 0x3, 0x10)
r2 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r1)
sendmsg$TIPC_NL_BEARER_ENABLE(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r2, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program did not crash
replaying the whole log did not cause a kernel crash
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
single: failed to extract reproducer
bisect: bisecting 30 programs with base timeout 1m40s
testing program (duration=1m47s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 4, 8, 11, 6, 9, 7, 4, 26, 7, 11, 4, 4, 2, 6, 5, 7, 11, 5, 7, 4, 7, 3, 26, 3, 4, 8, 2, 6, 9]
detailed listing:
executing program 2:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r0, 0xc004743e, 0x110c23003f)
write$cgroup_devices(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64], 0xa)
executing program 2:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 0:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)
executing program 4:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x101401, 0x0)
r1 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r2)
sendmsg$TIPC_NL_BEARER_ENABLE(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r3, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(r0, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="18000000260001031dbd7002fadbdf25010000000400ae"], 0x18}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000300), 0x0)
recvmmsg(r0, &(0x7f00000003c0)=[{{0x0, 0x0, &(0x7f00000009c0)=[{&(0x7f0000000500)=""/157, 0x9d}, {&(0x7f00000027c0)=""/4133, 0x1025}, {&(0x7f0000000040)=""/185, 0xb9}, {&(0x7f0000000240)=""/127, 0x7f}, {&(0x7f0000000a40)=""/4104, 0x1008}, {&(0x7f0000000180)=""/65, 0x41}, {&(0x7f0000000300)=""/22, 0x16}], 0x7}, 0x10}, {{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0}, 0x38000000}, {{0x0, 0x0, 0x0}, 0x1}], 0x4, 0x40000102, 0x0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 1:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 2:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4)
connect$inet(r0, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x42}}, 0x10)
connect$inet(r0, &(0x7f0000000700)={0x2, 0x4e22, @empty}, 0x10)
executing program 4:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
r0 = socket$packet(0x11, 0x3, 0x300)
bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x1, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r0, 0x0)
write(r0, &(0x7f0000000000)="01", 0x1)
executing program 4:
r0 = socket$vsock_stream(0x28, 0x1, 0x0)
r1 = socket$pppl2tp(0x18, 0x1, 0x1)
ioctl$SIOCSIFMTU(r1, 0x8947, &(0x7f00000000c0)={'bond0\x00', 0x10001})
getsockopt(r0, 0x5, 0x80000001, &(0x7f0000000100)=""/42, 0x0)
syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
r2 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r2, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000002900)=ANY=[@ANYBLOB="140000001000010000000000000000000200000a20000000000a01080000000000000000020000000900010073797a300000000064000000090a010400000000000000000200000008000a40000000010900020073797a31000000000900010073797a300000000008000540000000080800034000000084200009801c0002800c00018008000140000000040c0001800800014000000004440000000c0a01010000000000000000020000000900020073797a31000000000900010073797a30000000001800038014000080100001800c0001"], 0xf0}}, 0x0)
executing program 0:
recvmmsg(0xffffffffffffffff, &(0x7f0000006840)=[{{0x0, 0x0, &(0x7f0000000480)=[{0x0}, {0x0}, {0x0}, {0x0}], 0x4}, 0x9a9}], 0x1, 0x40000021, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@text16={0x10, 0x0, 0x4b}], 0x1, 0x0, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, &(0x7f0000000200)="f7790066baa00066b86b4266ef66ba420066b8e20066ef0f29902cbb0000c4e2b1ba8c88d9000000666666440f38826b410f7842280f07b8010000000f01d9c4033921820f47a753fd", 0x49}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x7, 0x2, 0xe9b, 0x100, 0xd, 0x7f, 0x44233, 0x200, 0x80, 0x941, 0x8001, 0x6, 0x4, 0x4, 0x20000, 0xb], 0x4, 0x84340})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4400ae8f, &(0x7f0000000140)=@arm64={0x52, 0x6, 0x40, '\x00', 0x10000})
ioctl$KVM_RUN(r2, 0xae80, 0x0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./config\x00', 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000800)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000900)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f/dwFrameInterval\x00', 0x1, 0x0)
syz_open_procfs(0x0, &(0x7f00000001c0)='fd/3\x00')
executing program 2:
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x1002})
r0 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r1 = socket$nl_generic(0x10, 0x3, 0x10)
r2 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r1)
sendmsg$TIPC_NL_BEARER_ENABLE(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r2, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program did not crash
replaying the whole log did not cause a kernel crash
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
single: failed to extract reproducer
bisect: bisecting 30 programs with base timeout 6m0s
testing program (duration=6m7s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [7, 4, 8, 11, 6, 9, 7, 4, 26, 7, 11, 4, 4, 2, 6, 5, 7, 11, 5, 7, 4, 7, 3, 26, 3, 4, 8, 2, 6, 9]
detailed listing:
executing program 2:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
close(0xffffffffffffffff)
r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r0, 0xc004743e, 0x110c23003f)
write$cgroup_devices(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64], 0xa)
executing program 2:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 0:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 0:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)
executing program 4:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000240), 0x101401, 0x0)
r1 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r2 = socket$nl_generic(0x10, 0x3, 0x10)
r3 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r2)
sendmsg$TIPC_NL_BEARER_ENABLE(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r3, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(r0, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 1:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000004c0)=ANY=[@ANYBLOB="18000000260001031dbd7002fadbdf25010000000400ae"], 0x18}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000300), 0x0)
recvmmsg(r0, &(0x7f00000003c0)=[{{0x0, 0x0, &(0x7f00000009c0)=[{&(0x7f0000000500)=""/157, 0x9d}, {&(0x7f00000027c0)=""/4133, 0x1025}, {&(0x7f0000000040)=""/185, 0xb9}, {&(0x7f0000000240)=""/127, 0x7f}, {&(0x7f0000000a40)=""/4104, 0x1008}, {&(0x7f0000000180)=""/65, 0x41}, {&(0x7f0000000300)=""/22, 0x16}], 0x7}, 0x10}, {{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0}, 0x38000000}, {{0x0, 0x0, 0x0}, 0x1}], 0x4, 0x40000102, 0x0)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 1:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x48241, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 2:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4)
connect$inet(r0, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x42}}, 0x10)
connect$inet(r0, &(0x7f0000000700)={0x2, 0x4e22, @empty}, 0x10)
executing program 4:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
r0 = socket$packet(0x11, 0x3, 0x300)
bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x1, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r0, 0x0)
write(r0, &(0x7f0000000000)="01", 0x1)
executing program 4:
r0 = socket$vsock_stream(0x28, 0x1, 0x0)
r1 = socket$pppl2tp(0x18, 0x1, 0x1)
ioctl$SIOCSIFMTU(r1, 0x8947, &(0x7f00000000c0)={'bond0\x00', 0x10001})
getsockopt(r0, 0x5, 0x80000001, &(0x7f0000000100)=""/42, 0x0)
syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
r2 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r2, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000002900)=ANY=[@ANYBLOB="140000001000010000000000000000000200000a20000000000a01080000000000000000020000000900010073797a300000000064000000090a010400000000000000000200000008000a40000000010900020073797a31000000000900010073797a300000000008000540000000080800034000000084200009801c0002800c00018008000140000000040c0001800800014000000004440000000c0a01010000000000000000020000000900020073797a31000000000900010073797a30000000001800038014000080100001800c0001"], 0xf0}}, 0x0)
executing program 0:
recvmmsg(0xffffffffffffffff, &(0x7f0000006840)=[{{0x0, 0x0, &(0x7f0000000480)=[{0x0}, {0x0}, {0x0}, {0x0}], 0x4}, 0x9a9}], 0x1, 0x40000021, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@text16={0x10, 0x0, 0x4b}], 0x1, 0x0, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, &(0x7f0000000200)="f7790066baa00066b86b4266ef66ba420066b8e20066ef0f29902cbb0000c4e2b1ba8c88d9000000666666440f38826b410f7842280f07b8010000000f01d9c4033921820f47a753fd", 0x49}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x7, 0x2, 0xe9b, 0x100, 0xd, 0x7f, 0x44233, 0x200, 0x80, 0x941, 0x8001, 0x6, 0x4, 0x4, 0x20000, 0xb], 0x4, 0x84340})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4400ae8f, &(0x7f0000000140)=@arm64={0x52, 0x6, 0x40, '\x00', 0x10000})
ioctl$KVM_RUN(r2, 0xae80, 0x0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./config\x00', 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000800)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000900)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f/dwFrameInterval\x00', 0x1, 0x0)
syz_open_procfs(0x0, &(0x7f00000001c0)='fd/3\x00')
executing program 2:
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x1002})
r0 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r1 = socket$nl_generic(0x10, 0x3, 0x10)
r2 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r1)
sendmsg$TIPC_NL_BEARER_ENABLE(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r2, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program crashed: INFO: task hung in write_ports
bisect: bisecting 30 programs
bisect: split chunks (needed=false): <29>
bisect: split chunk #0 of len 29 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=6m5s, {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}}): [11, 4, 4, 2, 6, 5, 7, 11, 5, 7, 4, 7, 3, 26, 3, 4, 8, 2, 6, 9]
detailed listing:
executing program 2:
io_submit(0x0, 0x1, &(0x7f00000001c0)=[&(0x7f00000000c0)={0x0, 0x0, 0x0, 0x5, 0x0, 0xffffffffffffffff, 0x0}])
openat$nci(0xffffffffffffff9c, &(0x7f0000000300), 0x2, 0x0)
socket$pppl2tp(0x18, 0x1, 0x1)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000200), 0xffffffffffffffff)
ioctl$sock_SIOCGIFINDEX_80211(r0, 0x8933, &(0x7f0000000700)={'wlan1\x00', <r2=>0x0})
sendmsg$NL80211_CMD_TRIGGER_SCAN(r0, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000000)={0x24, r1, 0x5, 0x2, 0x25dfdbfd, {{}, {@val={0x8, 0x3, r2}, @void}}, [@NL80211_ATTR_IE={0x6, 0x2a, [@random={0xdb}]}]}, 0x24}, 0x1, 0x0, 0x0, 0x40}, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f0000000040)={'wlan1\x00', <r4=>0x0})
r5 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), r3)
sendmsg$NL80211_CMD_TRIGGER_SCAN(r3, &(0x7f0000000200)={0x0, 0x100000, &(0x7f00000000c0)={&(0x7f0000001440)={0x1c, r5, 0x1, 0x0, 0x0, {{0x8}, {@val={0x8, 0x3, r4}, @void}}}, 0x1c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 4:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
setsockopt$inet_tcp_int(r0, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4)
connect$inet(r0, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x42}}, 0x10)
connect$inet(r0, &(0x7f0000000700)={0x2, 0x4e22, @empty}, 0x10)
executing program 4:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 1:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
r0 = socket$packet(0x11, 0x3, 0x300)
bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x1, 0x1, 0x0, 0x6, @random="001122334455"}, 0x14)
setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10)
mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x3, 0x11, r0, 0x0)
write(r0, &(0x7f0000000000)="01", 0x1)
executing program 4:
r0 = socket$vsock_stream(0x28, 0x1, 0x0)
r1 = socket$pppl2tp(0x18, 0x1, 0x1)
ioctl$SIOCSIFMTU(r1, 0x8947, &(0x7f00000000c0)={'bond0\x00', 0x10001})
getsockopt(r0, 0x5, 0x80000001, &(0x7f0000000100)=""/42, 0x0)
syz_init_net_socket$802154_raw(0x24, 0x3, 0x0)
r2 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r2, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000002900)=ANY=[@ANYBLOB="140000001000010000000000000000000200000a20000000000a01080000000000000000020000000900010073797a300000000064000000090a010400000000000000000200000008000a40000000010900020073797a31000000000900010073797a300000000008000540000000080800034000000084200009801c0002800c00018008000140000000040c0001800800014000000004440000000c0a01010000000000000000020000000900020073797a31000000000900010073797a30000000001800038014000080100001800c0001"], 0xf0}}, 0x0)
executing program 0:
recvmmsg(0xffffffffffffffff, &(0x7f0000006840)=[{{0x0, 0x0, &(0x7f0000000480)=[{0x0}, {0x0}, {0x0}, {0x0}], 0x4}, 0x9a9}], 0x1, 0x40000021, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000001c0)=[@text16={0x10, 0x0, 0x4b}], 0x1, 0x0, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f0000000100)=[@text64={0x40, &(0x7f0000000200)="f7790066baa00066b86b4266ef66ba420066b8e20066ef0f29902cbb0000c4e2b1ba8c88d9000000666666440f38826b410f7842280f07b8010000000f01d9c4033921820f47a753fd", 0x49}], 0x1, 0x43, 0x0, 0x0)
ioctl$KVM_RUN(r2, 0xae80, 0x0)
ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000040)={[0x7, 0x2, 0xe9b, 0x100, 0xd, 0x7f, 0x44233, 0x200, 0x80, 0x941, 0x8001, 0x6, 0x4, 0x4, 0x20000, 0xb], 0x4, 0x84340})
ioctl$KVM_SET_VCPU_EVENTS(r2, 0x4400ae8f, &(0x7f0000000140)=@arm64={0x52, 0x6, 0x40, '\x00', 0x10000})
ioctl$KVM_RUN(r2, 0xae80, 0x0)
executing program 1:
mkdir(&(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./config\x00', 0x0, 0x0, 0x0)
mkdir(&(0x7f0000000800)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000900)='./config/usb_gadget/g1/functions/uvc.usb0/streaming/uncompressed/u/f/dwFrameInterval\x00', 0x1, 0x0)
syz_open_procfs(0x0, &(0x7f00000001c0)='fd/3\x00')
executing program 2:
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x1002})
r0 = socket(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000100)={'syzkaller0\x00', 0x1})
r1 = socket$nl_generic(0x10, 0x3, 0x10)
r2 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000000), r1)
sendmsg$TIPC_NL_BEARER_ENABLE(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000040)={0x2c, r2, 0x1, 0x123, 0x234, {}, [@TIPC_NLA_BEARER={0x18, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'syzkaller0\x00'}}]}]}, 0x2c}}, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)="ffffffffffff02000000000188ca50c0003c0000000002000001000000010000020000000000", 0x26)
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program crashed: INFO: task hung in write_ports
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/3
testing program (duration=6m2s, {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, 3, 26, 3, 4, 8, 2, 6, 9]
detailed listing:
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program crashed: INFO: task hung in write_ports
bisect: the chunk can be dropped
bisect: testing without sub-chunk 3/3
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
bisect: split chunks (needed=true): <9>
bisect: split chunk #0 of len 9 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=6m1s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 8, 2, 6, 9]
detailed listing:
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./nfsd/portlist\x00', 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp', 0x3)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x42, 0x1b6)
write(r0, 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x2)
ioctl$LOOP_SET_FD(r1, 0x4c00, r0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./sys\x00', 0x1ed)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000240)='sysfs\x00', 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/module/block2mtd/parameters/block2mtd\x00', 0x1, 0x0)
write(r2, &(0x7f0000000400)='/dev/loop0,65', 0xd)
executing program 3:
r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="0200000004000000080000000100000000000000", @ANYRES32=0x0, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="010000000300000000"], 0x48)
bpf$BPF_MAP_LOOKUP_AND_DELETE_ELEM(0x15, &(0x7f0000000600)={r0, 0x0, 0x0, 0x4}, 0x20)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)
executing program 3:
openat(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.cpu/memory.limit_in_bytes\x00', 0x2, 0x0)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x20000, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = dup(r1)
ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000840)={0x1fe, 0x2, 0x2000, 0x1000, &(0x7f0000003000/0x1000)=nil})
r3 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0)
syz_kvm_setup_cpu$x86(r2, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000100)=[@text32={0x20, 0x0}], 0x1, 0x6f, 0x0, 0x0)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000040)=[@text64={0x40, 0x0}], 0x1, 0x11, 0x0, 0x0)
ioctl$KVM_RUN(r3, 0xae80, 0x0)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=6m1s, {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, 3, 26, 3, 6]
detailed listing:
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <5>
bisect: split chunk #0 of len 5 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [26, 3, 6]
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./mnt\x00', 0x1ff)
mount(&(0x7f0000000080)=@filename='mtd0\x00', &(0x7f00000000c0)='./mnt\x00', &(0x7f0000000100)='jffs2\x00', 0x0, &(0x7f0000000140)='compr=none\x00')
write(0xffffffffffffffff, &(0x7f00000001c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x1000)
close(0xffffffffffffffff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000200)='./mnt/del2\x00', 0x42, 0x1ff)
write(r0, &(0x7f0000000240)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f", 0x30)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000280)='./mnt/del3\x00', 0x42, 0x1ff)
write(r1, &(0x7f00000002c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b", 0x3c)
close(r1)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
unlinkat(0xffffffffffffff9c, 0x0, 0x0)
r2 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x1ff)
write(r2, &(0x7f00000003c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e", 0x3f)
write(r2, &(0x7f0000000400), 0x0)
write(r2, 0x0, 0x0)
write(r2, &(0x7f0000000480)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, &(0x7f00000004c0)="000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f", 0x8000)
write(r2, 0x0, 0x0)
close(r2)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
write(0xffffffffffffffff, 0x0, 0x0)
close(0xffffffffffffffff)
nanosleep(0x0, 0x0)
executing program 2:
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @local}, 0x10)
setsockopt$inet_int(r0, 0x0, 0x33, &(0x7f00000009c0)=0x1234, 0x4)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=6m1s, {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, 3, 6]
detailed listing:
executing program 4:
r0 = syz_usb_connect(0x0, 0x3f, &(0x7f00000012c0)=ANY=[@ANYRESHEX], 0x0)
syz_usb_control_io$printer(r0, 0x0, &(0x7f0000001580)={0x34, &(0x7f00000001c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
ioctl$HIDIOCGUSAGE(r1, 0x40045b0a, &(0x7f0000000000)={0x2, 0xfffffffe, 0x7, 0xff, 0x1})
executing program 3:
openat$sysfs(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/fscaps', 0x40e02, 0x36)
openat$ppp(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0)
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='io.stat\x00', 0x26e1, 0x0)
close(r0)
r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040), 0x8901, 0x0)
ioctl$TUNSETOFFLOAD(r1, 0xc004743e, 0x110c23003f)
write$cgroup_devices(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="80fd", @ANYRES64=r0], 0xa)
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 6]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung 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): <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 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)


bisect: trying to concatenate
bisect: concatenate 2 entries
minimizing program #0 before concatenation
testing program (duration=9m0s, {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, 6]
detailed listing:
executing program 0:
socket$nl_route(0x10, 0x3, 0x0)
bind$netlink(0xffffffffffffffff, &(0x7f0000000100)={0x10, 0x0, 0x25dfdbfd, 0x400}, 0xc)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=9m0s, {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, 6]
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
testing program (duration=9m0s, {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, 6]
detailed listing:
executing program 0:
sendmsg$nl_route(0xffffffffffffffff, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
minimized 3 calls -> 2 calls
minimizing program #1 before concatenation
testing program (duration=9m0s, {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, 5]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)

program did not crash
testing program (duration=9m0s, {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, 5]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000300)='udp 2', 0x5)
write(0xffffffffffffffff, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=9m0s, {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, 5]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
testing program (duration=9m0s, {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, 4]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
testing program (duration=9m0s, {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, 3]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program did not crash
testing program (duration=9m0s, {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, 3]
detailed listing:
executing program 1:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
executing program 0:
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

program did not crash
minimized 6 calls -> 4 calls
testing program (duration=9m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
bisect: concatenation succeeded
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
socket$nl_route(0x10, 0x3, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {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}}): sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
sendmsg$nl_route(0xffffffffffffffff, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, 0x0}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, 0x0, 0x0)

program did not crash
testing program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m6.122585812s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
simplifying C reproducer
testing compiled C program (duration=6m6.122585812s, {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}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing compiled C program (duration=6m6.122585812s, {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}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing compiled C program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing compiled C program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing compiled C program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing compiled C program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
program crashed: INFO: task hung in nfsd_svc
testing program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
validation run: crashed=true
testing program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
validation run: crashed=true
testing program (duration=6m6.122585812s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route-mkdirat-mount-openat-write
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r0, &(0x7f00000004c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000000)=@newlink={0x28, 0x10, 0x801, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x200e3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000100)='nfsd\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./nfsd/threads\x00', 0x1, 0x0)
write(r1, &(0x7f0000000500)='2\n', 0x2)

program crashed: INFO: task hung in nfsd_svc
validation run: crashed=true
reproducing took 5h8m55.492368755s
repro crashed as (corrupted=false):
INFO: task syz.0.17:4493 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17        state:D stack:22256 pid:4493  ppid:4392   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5246 [inline]
 __schedule+0x107f/0x4030 kernel/sched/core.c:6563
 schedule+0xb9/0x180 kernel/sched/core.c:6639
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6698
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x548/0xae0 kernel/locking/mutex.c:747
 nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
 write_threads+0x2ea/0x350 fs/nfsd/nfsctl.c:424
 nfsctl_transaction_write+0x105/0x150 fs/nfsd/nfsctl.c:114
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe438d9e0d9
RSP: 002b:00007fff8ab08598 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe439025fa0 RCX: 00007fe438d9e0d9
RDX: 0000000000000002 RSI: 0000200000000500 RDI: 0000000000000004
RBP: 00007fe438e35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe439025fac R14: 00007fe439025fa0 R15: 00007fe439025fa0
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/7:
 #0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc900000c7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:104
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8cb2e4f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xef0 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8cb2ed10 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xef0 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/27:
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6527
3 locks held by kworker/u4:2/32:
3 locks held by kworker/u4:3/46:
 #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90000b77d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263
2 locks held by kworker/0:2/127:
 #0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90002e17d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
3 locks held by kworker/1:2/130:
 #0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90002dd7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffff8880725fc240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x283/0x3320 drivers/net/netdevsim/fib.c:1491
2 locks held by getty/4032:
 #0: ffff88814cfcf098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41e/0x1360 drivers/tty/n_tty.c:2198
3 locks held by kworker/0:7/4338:
 #0: ffff88814cdad938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90003cd7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1500 net/ipv6/addrconf.c:4138
3 locks held by kworker/1:7/4379:
 #0: ffff88814cdad938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc900032c7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1500 net/ipv6/addrconf.c:4138
2 locks held by syz.2.19/4492:
 #0: ffff888059cae460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.17/4493:
 #0: ffff88807bd06460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.18/4494:
 #0: ffff8880283dc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.21/4495:
 #0: ffff8880755da460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.20/4496:
 #0: ffff888073286460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.22/4535:
 #0: ffff888026b74460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.23/4569:
 #0: ffff8880568f6460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.24/4595:
 #0: ffff8880577e2460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.25/4601:
 #0: ffff88807ba3a460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.26/4602:
 #0: ffff888076c78460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.27/4617:
 #0: ffff88807897e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.28/4630:
 #0: ffff8880286d4460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.29/4644:
 #0: ffff888058322460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.31/4674:
 #0: ffff88802ff0a460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.30/4675:
 #0: ffff888075434460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.32/4695:
 #0: ffff88807b26e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.33/4714:
 #0: ffff88805b228460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.34/4734:
 #0: ffff888078fd0460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.35/4761:
 #0: ffff88805cbcc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.36/4772:
 #0: ffff888059076460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.37/4785:
 #0: ffff888027128460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.38/4798:
 #0: ffff888051a08460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.39/4811:
 #0: ffff88807929e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.40/4835:
 #0: ffff888054d88460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.41/4859:
 #0: ffff88805e558460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.42/4875:
 #0: ffff88802f476460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.43/4894:
 #0: ffff888052032460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.44/4910:
 #0: ffff88804d368460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.45/4929:
 #0: ffff88801f2ea460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.46/4948:
 #0: ffff88804721e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.47/4961:
 #0: ffff888053946460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.48/4974:
 #0: ffff88802fee4460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.49/4987:
 #0: ffff888052014460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.50/5006:
 #0: ffff88804842c460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.51/5019:
 #0: ffff888059a04460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.52/5038:
 #0: ffff88804b538460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.53/5057:
 #0: ffff88807ddcc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.54/5076:
 #0: ffff888044dd2460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.55/5095:
 #0: ffff8880520c6460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.56/5114:
 #0: ffff88807f692460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.57/5127:
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x80d/0xfb0 net/core/rtnetlink.c:6163
 #1: ffffffff8cb33838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #1: ffffffff8cb33838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2ec/0x890 kernel/rcu/tree_exp.h:962
1 lock held by syz-executor/5131:
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x80d/0xfb0 net/core/rtnetlink.c:6163

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3e6/0x460 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1d4/0x450 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xf0e/0xf50 kernel/hung_task.c:377
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 57 Comm: kworker/u4:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:hlock_class kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:mark_lock+0xac/0x320 kernel/locking/lockdep.c:4611
Code: 00 48 8d b8 40 02 b1 90 be 08 00 00 00 e8 3c a9 6e 00 4c 0f a3 3d 04 4f 4c 0f 73 10 4b 8d 04 7f c1 e0 06 4c 8d b8 00 81 49 90 <eb> 24 48 c7 c0 40 71 c1 96 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85
RSP: 0018:ffffc90001587760 EFLAGS: 00000006
RAX: 00000000000006c0 RBX: ffff88801f2dda00 RCX: ffffffff8164b334
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90b10240
RBP: 0000000000000002 R08: ffffffff90b10247 R09: 1ffffffff2162048
R10: dffffc0000000000 R11: fffffbfff2162049 R12: 0000000000000004
R13: dffffc0000000000 R14: ffff88801f2de580 R15: ffffffff904987c0
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e90c129970 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_held_locks kernel/locking/lockdep.c:4235 [inline]
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:4253 [inline]
 lockdep_hardirqs_on_prepare+0x237/0x7c0 kernel/locking/lockdep.c:4320
 trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
 __text_poke+0x665/0x840 arch/x86/kernel/alternative.c:1455
 text_poke arch/x86/kernel/alternative.c:1480 [inline]
 text_poke_bp_batch+0x454/0x850 arch/x86/kernel/alternative.c:1796
 text_poke_flush arch/x86/kernel/alternative.c:1965 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1972
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 static_key_disable_cpuslocked+0xc1/0x1a0 kernel/jump_label.c:237
 static_key_disable+0x16/0x20 kernel/jump_label.c:245
 toggle_allocation_gate+0x3d1/0x470 mm/kfence/core.c:835
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

final repro crashed as (corrupted=false):
INFO: task syz.0.17:4493 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17        state:D stack:22256 pid:4493  ppid:4392   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5246 [inline]
 __schedule+0x107f/0x4030 kernel/sched/core.c:6563
 schedule+0xb9/0x180 kernel/sched/core.c:6639
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6698
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x548/0xae0 kernel/locking/mutex.c:747
 nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
 write_threads+0x2ea/0x350 fs/nfsd/nfsctl.c:424
 nfsctl_transaction_write+0x105/0x150 fs/nfsd/nfsctl.c:114
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe438d9e0d9
RSP: 002b:00007fff8ab08598 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe439025fa0 RCX: 00007fe438d9e0d9
RDX: 0000000000000002 RSI: 0000200000000500 RDI: 0000000000000004
RBP: 00007fe438e35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe439025fac R14: 00007fe439025fa0 R15: 00007fe439025fa0
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:0/7:
 #0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc900000c7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:104
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8cb2e4f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xef0 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8cb2ed10 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xef0 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/27:
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8cb2db60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6527
3 locks held by kworker/u4:2/32:
3 locks held by kworker/u4:3/46:
 #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90000b77d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263
2 locks held by kworker/0:2/127:
 #0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90002e17d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
3 locks held by kworker/1:2/130:
 #0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90002dd7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffff8880725fc240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x283/0x3320 drivers/net/netdevsim/fib.c:1491
2 locks held by getty/4032:
 #0: ffff88814cfcf098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41e/0x1360 drivers/tty/n_tty.c:2198
3 locks held by kworker/0:7/4338:
 #0: ffff88814cdad938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc90003cd7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1500 net/ipv6/addrconf.c:4138
3 locks held by kworker/1:7/4379:
 #0: ffff88814cdad938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #1: ffffc900032c7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b4/0x1160 kernel/workqueue.c:2267
 #2: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x1500 net/ipv6/addrconf.c:4138
2 locks held by syz.2.19/4492:
 #0: ffff888059cae460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.17/4493:
 #0: ffff88807bd06460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.18/4494:
 #0: ffff8880283dc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.21/4495:
 #0: ffff8880755da460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.20/4496:
 #0: ffff888073286460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.22/4535:
 #0: ffff888026b74460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.23/4569:
 #0: ffff8880568f6460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.24/4595:
 #0: ffff8880577e2460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.25/4601:
 #0: ffff88807ba3a460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.26/4602:
 #0: ffff888076c78460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.27/4617:
 #0: ffff88807897e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.28/4630:
 #0: ffff8880286d4460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.29/4644:
 #0: ffff888058322460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.31/4674:
 #0: ffff88802ff0a460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.30/4675:
 #0: ffff888075434460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.32/4695:
 #0: ffff88807b26e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.33/4714:
 #0: ffff88805b228460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.34/4734:
 #0: ffff888078fd0460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.35/4761:
 #0: ffff88805cbcc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.36/4772:
 #0: ffff888059076460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.37/4785:
 #0: ffff888027128460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.38/4798:
 #0: ffff888051a08460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.39/4811:
 #0: ffff88807929e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.40/4835:
 #0: ffff888054d88460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.41/4859:
 #0: ffff88805e558460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.42/4875:
 #0: ffff88802f476460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.43/4894:
 #0: ffff888052032460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.44/4910:
 #0: ffff88804d368460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.45/4929:
 #0: ffff88801f2ea460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.46/4948:
 #0: ffff88804721e460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.47/4961:
 #0: ffff888053946460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.0.48/4974:
 #0: ffff88802fee4460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.1.49/4987:
 #0: ffff888052014460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.4.50/5006:
 #0: ffff88804842c460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.3.51/5019:
 #0: ffff888059a04460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.5.52/5038:
 #0: ffff88804b538460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.6.53/5057:
 #0: ffff88807ddcc460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.7.54/5076:
 #0: ffff888044dd2460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.8.55/5095:
 #0: ffff8880520c6460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.9.56/5114:
 #0: ffff88807f692460 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x270/0x9a0 fs/read_write.c:580
 #1: ffffffff8cdcce08 (nfsd_mutex){+.+.}-{3:3}, at: nfsd_svc+0x61/0xab0 fs/nfsd/nfssvc.c:783
2 locks held by syz.2.57/5127:
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x80d/0xfb0 net/core/rtnetlink.c:6163
 #1: ffffffff8cb33838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
 #1: ffffffff8cb33838 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2ec/0x890 kernel/rcu/tree_exp.h:962
1 lock held by syz-executor/5131:
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
 #0: ffffffff8dd5b968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x80d/0xfb0 net/core/rtnetlink.c:6163

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3e6/0x460 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1d4/0x450 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xf0e/0xf50 kernel/hung_task.c:377
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 57 Comm: kworker/u4:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:hlock_class kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:mark_lock+0xac/0x320 kernel/locking/lockdep.c:4611
Code: 00 48 8d b8 40 02 b1 90 be 08 00 00 00 e8 3c a9 6e 00 4c 0f a3 3d 04 4f 4c 0f 73 10 4b 8d 04 7f c1 e0 06 4c 8d b8 00 81 49 90 <eb> 24 48 c7 c0 40 71 c1 96 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85
RSP: 0018:ffffc90001587760 EFLAGS: 00000006
RAX: 00000000000006c0 RBX: ffff88801f2dda00 RCX: ffffffff8164b334
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90b10240
RBP: 0000000000000002 R08: ffffffff90b10247 R09: 1ffffffff2162048
R10: dffffc0000000000 R11: fffffbfff2162049 R12: 0000000000000004
R13: dffffc0000000000 R14: ffff88801f2de580 R15: ffffffff904987c0
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e90c129970 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_held_locks kernel/locking/lockdep.c:4235 [inline]
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:4253 [inline]
 lockdep_hardirqs_on_prepare+0x237/0x7c0 kernel/locking/lockdep.c:4320
 trace_hardirqs_on+0x34/0x40 kernel/trace/trace_preemptirq.c:49
 __text_poke+0x665/0x840 arch/x86/kernel/alternative.c:1455
 text_poke arch/x86/kernel/alternative.c:1480 [inline]
 text_poke_bp_batch+0x454/0x850 arch/x86/kernel/alternative.c:1796
 text_poke_flush arch/x86/kernel/alternative.c:1965 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1972
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 static_key_disable_cpuslocked+0xc1/0x1a0 kernel/jump_label.c:237
 static_key_disable+0x16/0x20 kernel/jump_label.c:245
 toggle_allocation_gate+0x3d1/0x470 mm/kfence/core.c:835
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>