Extracting prog: 15m46.896684s
Minimizing prog: 12m14.502851723s
Simplifying prog options: 0s
Extracting C: 22.049801433s
Simplifying C: 12m8.710614029s


extracting reproducer from 31 programs
testing a last program of every proc
single: executing 6 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false 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-mount
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x180)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='7', 0x1)
mount(&(0x7f0000000040)=@filename='./proc/thread-self/fail-nth\x00', 0x0, &(0x7f0000000180)='qnx4\x00', 0x2000808, &(0x7f00000001c0)='asymmetric\x00')

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-ioctl$TUNSETIFF-socket$inet_udp-ioctl$sock_inet_SIOCSIFFLAGS-write$tun
detailed listing:
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x5001})
r1 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000200)={'syzkaller1\x00', 0x1})
write$tun(r0, &(0x7f0000000240)={@void, @val={0x3, 0x0, 0x1c, 0x3, 0x14, 0x6}, @ipv6=@generic={0x8, 0x6, "7535a4", 0x0, 0x2f, 0xff, @remote, @mcast2}}, 0x32)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-prctl$PR_MCE_KILL_GET-syz_io_uring_setup-madvise-mlock
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xf, 0x204031, 0xffffffffffffffff, 0x2d5c000)
prctl$PR_MCE_KILL_GET(0x3d)
syz_io_uring_setup(0x100484c, &(0x7f0000000140)={0x0, 0xd351, 0x811, 0x3, 0x19e}, 0x0, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-mkdirat-mount-openat-ioctl
detailed listing:
executing program 0:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ptrace-sched_setattr-sched_setattr-sched_setattr
detailed listing:
executing program 0:
ptrace(0x10, 0x1)
sched_setattr(0x0, &(0x7f0000000040)={0x38, 0x6, 0x0, 0x0, 0x0, 0x8000000009917, 0x400000000000fffd}, 0x0)
sched_setattr(0x0, &(0x7f0000000080)={0x38, 0x0, 0x0, 0xffffffffffffffff}, 0x0)
sched_setattr(0x0, &(0x7f00000000c0)={0x38, 0x0, 0x0, 0x1}, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ptrace-sched_setattr-sched_setattr-sched_setattr
detailed listing:
executing program 0:
ptrace(0x10, 0x1)
sched_setattr(0x0, &(0x7f0000000040)={0x38, 0x6, 0x0, 0x0, 0x0, 0x8000000009917, 0x400000000000fffd}, 0x0)
sched_setattr(0x0, &(0x7f0000000080)={0x38, 0x0, 0x0, 0xffffffffffffffff}, 0x0)
sched_setattr(0x0, &(0x7f00000000c0)={0x38, 0x0, 0x0, 0x1}, 0x0)

program did not crash
single: failed to extract reproducer
bisect: bisecting 31 programs with base timeout 30s
testing program (duration=37s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
detailed listing:
executing program 2:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000004300), 0x1, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
ioctl$KVM_CREATE_IRQCHIP(r1, 0xae60)
ioctl$KVM_GET_IRQCHIP(r1, 0xc208ae62, &(0x7f0000000040)={0x2, 0x0, @ioapic={0xd000, 0x6, 0x63, 0xb, 0x0, [{0x7f, 0x2, 0x5, '\x00', 0x7f}, {0xa9, 0xff, 0x0, '\x00', 0x4}, {0x9, 0xfe, 0x4, '\x00', 0xb}, {0xc, 0x4e, 0x1, '\x00', 0x4}, {0x4, 0x3f, 0x60, '\x00', 0x7}, {0x1, 0x4, 0x0, '\x00', 0x1}, {0x3, 0xe, 0xc, '\x00', 0x3}, {0x30, 0x78, 0x1, '\x00', 0xc0}, {0x40, 0x40, 0x10, '\x00', 0x9b}, {0x6, 0x1, 0x4, '\x00', 0x9}, {0x1, 0xff, 0x9, '\x00', 0x6}, {0x4, 0x2, 0x7, '\x00', 0x4}, {0x9, 0xac, 0xb1, '\x00', 0x3}, {0x8c, 0x0, 0x4, '\x00', 0x92}, {0xbd, 0x1, 0xff, '\x00', 0x7}, {0x3, 0x2, 0x75, '\x00', 0x9}, {0xb3, 0xf, 0x6, '\x00', 0x3}, {0x2, 0xc, 0x40, '\x00', 0x9}, {0x6, 0x9, 0x9, '\x00', 0x9}, {0x0, 0x62, 0x5, '\x00', 0x4}, {0x7, 0x9, 0x4, '\x00', 0x47}, {0x6, 0xd, 0x4, '\x00', 0x7}, {0x4c, 0x6, 0x4, '\x00', 0xa6}, {0x4, 0x0, 0x4, '\x00', 0x5}]}})
executing program 2:
madvise(&(0x7f0000000000/0x600000)=nil, 0x600722, 0x66)
unshare(0x14000000)
r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3)
getsockopt$bt_BT_RCVMTU(r0, 0x112, 0xd, 0x0, 0x0)
executing program 2:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x40)
fallocate(r0, 0x0, 0x9, 0x8ffff)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x0)
fallocate(r1, 0x0, 0x0, 0x8ffff)
executing program 2:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4e23, 0xa4e4, @remote, 0x3}, 0x1c)
r1 = socket$nl_sock_diag(0x10, 0x3, 0x4)
sendmsg$TCPDIAG_GETSOCK(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000640)=ANY=[@ANYBLOB="600000001200010300000000000000000200"/56, @ANYRES32=0x0, @ANYBLOB="0000000002000000ffffffff03000000140001000710100002180000ffffffff"], 0x60}}, 0x0)
executing program 2:
sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000100)={0x14, 0x1a, 0x1, 0x70bd2d, 0x25dfdbff, {0xa, 0xd601, 0x9}}, 0x14}, 0x1, 0x0, 0x0, 0x5}, 0x0)
socketpair(0x29, 0x3, 0x8, &(0x7f0000000140))
openat$uhid(0xffffffffffffff9c, &(0x7f00000004c0), 0x2, 0x0)
ppoll(&(0x7f00000000c0)=[{}, {}], 0x20000000000000dc, 0x0, 0x0, 0x0)
executing program 2:
ptrace(0x10, 0x1)
sched_setattr(0x0, &(0x7f0000000040)={0x38, 0x6, 0x0, 0x0, 0x0, 0x8000000009917, 0x400000000000fffd}, 0x0)
sched_setattr(0x0, &(0x7f0000000080)={0x38, 0x0, 0x0, 0xffffffffffffffff}, 0x0)
sched_setattr(0x0, &(0x7f00000000c0)={0x38, 0x0, 0x0, 0x1}, 0x0)
executing program 32:
ptrace(0x10, 0x1)
sched_setattr(0x0, &(0x7f0000000040)={0x38, 0x6, 0x0, 0x0, 0x0, 0x8000000009917, 0x400000000000fffd}, 0x0)
sched_setattr(0x0, &(0x7f0000000080)={0x38, 0x0, 0x0, 0xffffffffffffffff}, 0x0)
sched_setattr(0x0, &(0x7f00000000c0)={0x38, 0x0, 0x0, 0x1}, 0x0)
executing program 0:
r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_int(r0, 0x0, 0xb, &(0x7f0000000000)=0x8, 0x4)
setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x41, &(0x7f0000000140)=0x40f9, 0x4)
sendto$inet(r0, 0x0, 0x0, 0x20000000, &(0x7f0000000240)={0x2, 0x4e20, @local}, 0x10)
recvmsg(r0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffde3}, 0x2043)
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./proc/sys/net/ipv6/conf/all/disable_ipv6\x00', 0x1, 0x0)
r1 = syz_open_procfs(0x0, &(0x7f00000000c0)='fd/3\x00')
sendfile(r0, r1, 0x0, 0x3)
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x8001, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
ioctl$KVM_SET_TSC_KHZ_cpu(r2, 0xaea2, 0x72c7)
ioctl$KVM_SET_MSRS(r2, 0x4008ae89, &(0x7f0000000080)={0x2, 0x0, [{0x10, 0x0, 0x5}, {0x10, 0x0, 0x1}]})
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f0000000000)=0x100000001, 0x4)
connect$inet6(r0, &(0x7f0000000200)={0xa, 0x0, 0x0, @loopback}, 0x1c)
setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000040), 0x4)
getsockopt$inet6_tcp_buf(r0, 0x6, 0x1f, 0x0, &(0x7f0000000140))
executing program 0:
r0 = syz_usb_connect(0x0, 0x36, &(0x7f0000000240)=ANY=[@ANYBLOB="12010000772904202404019957c2010203010902240001000010000904430002317d5500090502020002220000090582020002"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, &(0x7f0000000780)={0x84, &(0x7f0000000300)={0x0, 0xc, 0x4, "ea57bb76"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$sierra_net(r0, 0x0, &(0x7f0000000880)={0x1c, &(0x7f0000000140)={0x40, 0x8, 0x4, "e290f269"}, 0x0, 0x0})
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1fd)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='3', 0x4e)
syz_genetlink_get_family_id$nl80211(&(0x7f0000000180), r0)
executing program 3:
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x4d)
mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000000), 0x8, &(0x7f0000000280)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@workdir={'workdir', 0x3d, './bus'}}]})
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000000), 0x82, 0x0)
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000140), 0x0, 0x0)
executing program 3:
write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz0\x00', {0x3, 0x2, 0x6, 0xfffa}, 0x3a, [0x0, 0xf, 0xf, 0x8, 0x80, 0x4, 0x3, 0x80000000, 0x20000006, 0x4d, 0x5, 0x5d, 0xa, 0x5, 0xffff2d38, 0xffffff03, 0x6, 0x3, 0x0, 0xe, 0x7, 0x0, 0x7, 0x23c5b, 0x1, 0xf, 0xd, 0x7, 0x0, 0xffffffff, 0xe661, 0x4, 0x7, 0x7, 0x8, 0x4c74, 0x80000000, 0x242, 0x3, 0xe, 0x0, 0x80008071, 0x7, 0x17, 0x1, 0x7, 0x6, 0xdb63, 0x4000008c, 0x6, 0x5, 0x0, 0x4, 0x0, 0x8008, 0x400, 0x80, 0x0, 0x5, 0x6, 0x6, 0x3, 0x1, 0xf], [0x10000007, 0x9, 0x8000012f, 0x2008004, 0x5, 0xfffffff3, 0x129432e6, 0xc8, 0xf9, 0xe, 0x2c0, 0x2, 0x9, 0x7f, 0x3, 0x0, 0x0, 0x5, 0x2f, 0x0, 0x312, 0x78, 0xe, 0xfffffffe, 0x6, 0x7, 0x7fff, 0x5, 0x400, 0x401, 0x7, 0x1, 0xff, 0x5, 0x1000005, 0x5f2e, 0x1, 0x4e2, 0x8, 0x4, 0xb, 0x10000, 0x9, 0x8, 0x1009, 0x800, 0x47, 0x8000, 0xc25, 0xfe000000, 0xffff, 0x0, 0x4, 0x9, 0x3, 0x3, 0x9, 0x1, 0x3, 0x3, 0x94f, 0x48c93690, 0x42, 0x3], [0x82, 0x408, 0x7, 0x5, 0xfffffffe, 0x6, 0x2, 0x9, 0x5, 0x8002, 0x4, 0x5, 0xb, 0x2, 0x5, 0x7, 0x0, 0x1ef, 0x5, 0x8, 0x86, 0x3, 0x303c, 0x3e7, 0xb, 0x5, 0x2, 0x2, 0x3, 0x2, 0x4, 0x6d01, 0x13, 0x38, 0x800003, 0x200, 0x80, 0x3, 0x3ff, 0x2950bfaf, 0xc8, 0xa2, 0x7, 0xa9, 0x5, 0x8, 0xac8, 0xca, 0x2, 0x3, 0x7ff, 0x12b, 0x4, 0x1, 0xa, 0x0, 0x1, 0x7b04, 0x7, 0x3, 0x3, 0x5, 0x4, 0x3c484551], [0x9, 0xbb33, 0x7, 0x0, 0x5, 0x93a, 0x5, 0x2, 0xfffffffc, 0xb9, 0xce7, 0x203, 0x2, 0x57, 0x2, 0x3, 0x0, 0x10000, 0xb8, 0x3, 0x28, 0xa620, 0x2, 0x5, 0x1, 0x7ff, 0x14c, 0x20a7, 0x6, 0x16, 0xffffffff, 0x80000000, 0x5, 0x8, 0x9, 0xfffffff9, 0xfffff000, 0x10000, 0x10001, 0x7e, 0x100, 0x9606, 0x7, 0xaf, 0x5, 0xfffffff9, 0x226, 0x5, 0x5, 0x8, 0x30b1d693, 0xb1f, 0x8, 0x7, 0x1, 0x6c1b, 0x0, 0x4, 0x5, 0xb1e, 0x6, 0x200, 0xffff3441, 0xfff]}, 0x45c)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000580)=ANY=[@ANYBLOB="5c000000020605000000000000000000000000000c00078005001500267d00000500010007000000050005000a000000050004"], 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x800)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000040), r0)
sendmsg$ETHTOOL_MSG_DEBUG_SET(r0, &(0x7f0000001540)={0x0, 0x0, &(0x7f0000001500)={&(0x7f0000000580)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000040200f2c8dc1b000000180001801400020073797a5f74756e0000000000000000000c000280"], 0x38}, 0x1, 0x0, 0x0, 0x20000844}, 0x0)
executing program 4:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
syz_usb_disconnect(r0)
syz_usb_connect$printer(0x4, 0x2d, &(0x7f0000000040)=ANY=[], 0x0)
openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0)
ioctl$EVIOCRMFF(r0, 0x40085507, &(0x7f00000000c0)=0x18)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
syz_ublk_add_dev(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x2e, 0x14, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, <r0=>0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f00000004c0)=@any_dev={0x3, 0xc26, 0x0, 0x0, 0x1000, 0x10000, 0xffffffffffffffff, 0x0, 0x4d}}}, &(0x7f0000000480)=<r1=>0x0)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
r3 = dup(r2)
syz_ublk_setup_queues(r3, r1, &(0x7f0000000180)={0x0, 0x1, 0x3000, 0x3, 0x255, 0x0, r3}, 0x0, 0x1, &(0x7f0000000340)={0x2e, 0xe, 0x0, 0xffffffffffffffff, 0xc0107520, 0x0, 0x0, 0x0, 0x1, {}, 0x1f, r0, '\x00', {0xfff5, 0x4, 0x0, 0x0}}, 0x0)
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)
executing program 1:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x1c, 0x1, 0x4, 0x101, 0x0, 0x0, {0x1, 0x0, 0x400}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x60000081}, 0x800)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000140)={0x1c, 0x1, 0x4, 0x5, 0x0, 0x0, {0x3, 0x0, 0x10}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x26088888)
close(0x3)
executing program 4:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f00000000c0), 0xffffffffffffffff)
r2 = socket$netlink(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'bridge_slave_0\x00', <r3=>0x0})
sendmsg$ETHTOOL_MSG_WOL_SET(r0, &(0x7f0000002d40)={0x0, 0x0, &(0x7f0000002d00)={&(0x7f0000001840)={0x20, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@ETHTOOL_A_WOL_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r3}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x2400cc00}, 0x0)
executing program 1:
sendmsg$IPCTNL_MSG_EXP_NEW(0xffffffffffffffff, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000480)={&(0x7f0000000a00)={0x190, 0x0, 0x2, 0x301, 0x0, 0x0, {0x7, 0x0, 0x2}, [@CTA_EXPECT_NAT={0xe0, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x70, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, {0x14, 0x4, @mcast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @loopback}, {0x8, 0x2, @broadcast}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x3a}}]}, @CTA_EXPECT_NAT_TUPLE={0x64, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x7}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x88}}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @local}, {0x14, 0x4, @remote}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x6}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x84}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_NAT={0x88, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x44, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @remote}, {0x8, 0x2, @multicast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x2f}}]}, @CTA_EXPECT_NAT_TUPLE={0x38, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x11}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @private=0xa010101}, {0x8, 0x2, @multicast1}}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_FLAGS={0x8, 0x8, 0x1, 0x0, 0x1}, @CTA_EXPECT_HELP_NAME={0xa, 0x6, 'H.245\x00'}]}, 0x190}}, 0x10)
r0 = socket(0x10, 0x803, 0x0)
sendto(r0, &(0x7f00000006c0)="120000001200e7ef007b00000000000000a1", 0x12, 0x0, 0x0, 0x0)
recvmmsg(r0, &(0x7f00000037c0)=[{{&(0x7f00000004c0)=@ethernet={0x0, @random}, 0xfdf4, &(0x7f0000000380)=[{&(0x7f0000000140)=""/100, 0x321}, {&(0x7f0000000280)=""/85, 0x21}, {&(0x7f0000000fc0)=""/4096, 0x197}, {&(0x7f0000000580)=""/106, 0x659}, {&(0x7f0000000980)=""/73, 0xd}, {&(0x7f0000000200)=""/77, 0x69}, {&(0x7f00000007c0)=""/141, 0xc4}, {&(0x7f00000001c0)=""/17, 0x1d8}], 0x21, &(0x7f0000000600)=""/191, 0x41}, 0x5}], 0x4000000000003b4, 0x2000, &(0x7f0000003700)={0x77359400})
ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
executing program 4:
capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080))
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$BTRFS_IOC_TREE_SEARCH_V2(r0, 0x5381, 0x0)
executing program 1:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
r2 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r2, &(0x7f0000000080)='./file0\x00', r2, &(0x7f00000000c0)='./file0\x00', 0x2)
executing program 1:
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff1000/0x3000)=nil, &(0x7f0000ff1000/0xf000)=nil, &(0x7f0000ff6000/0x3000)=nil, &(0x7f0000ff2000/0x1000)=nil, &(0x7f0000ff8000/0x8000)=nil, &(0x7f0000ffc000/0x2000)=nil, &(0x7f0000ffa000/0x2000)=nil, &(0x7f00000e6000/0x3000)=nil, &(0x7f0000ffa000/0x4000)=nil, &(0x7f0000ffa000/0x3000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
r0 = socket$inet6(0xa, 0x2, 0x0)
setsockopt$inet6_group_source_req(r0, 0x29, 0x2e, &(0x7f0000000180)={0x8, {{0xa, 0x4e21, 0xa3f, @mcast1, 0xbfd}}, {{0xa, 0x4e1d, 0x5, @remote, 0x40}}}, 0x108)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
getsockopt$inet6_buf(r0, 0x29, 0x30, &(0x7f0000000180)=""/214, &(0x7f0000000080)=0xd6)
executing program 4:
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x100000a, 0x204031, 0xffffffffffffffff, 0xec776000)
ioctl$FIBMAP(r0, 0x1, &(0x7f0000000100)=0xffffffff)
executing program 1:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xf, 0x204031, 0xffffffffffffffff, 0x2d5c000)
prctl$PR_MCE_KILL_GET(0x3d)
syz_io_uring_setup(0x100484c, &(0x7f0000000140)={0x0, 0xd351, 0x811, 0x3, 0x19e}, 0x0, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
executing program 4:
ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000140)={'wg0\x00'})
ioctl$sock_ipv6_tunnel_SIOCADDTUNNEL(0xffffffffffffffff, 0x89f1, &(0x7f0000000200)={'syztnl2\x00', 0x0})
socket$inet(0x2, 0x6, 0x8)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_EXP_DELETE(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000340)={0x24, 0x2, 0x2, 0x401, 0x0, 0x0, {0x5, 0x0, 0x8}, [@CTA_EXPECT_HELP_NAME={0xe, 0x6, 'irc-20000\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2000c884}, 0x44800)
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x5001})
r1 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000200)={'syzkaller1\x00', 0x1})
write$tun(r0, &(0x7f0000000240)={@void, @val={0x3, 0x0, 0x1c, 0x3, 0x14, 0x6}, @ipv6=@generic={0x8, 0x6, "7535a4", 0x0, 0x2f, 0xff, @remote, @mcast2}}, 0x32)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x180)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='7', 0x1)
mount(&(0x7f0000000040)=@filename='./proc/thread-self/fail-nth\x00', 0x0, &(0x7f0000000180)='qnx4\x00', 0x2000808, &(0x7f00000001c0)='asymmetric\x00')

program crashed: WARNING in ovl_dir_modified
bisect: bisecting 31 programs
bisect: split chunks (needed=false): <31>
bisect: split chunk #0 of len 31 into 3 parts
bisect: testing without sub-chunk 1/3
testing program (duration=35s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x36, &(0x7f0000000240)=ANY=[@ANYBLOB="12010000772904202404019957c2010203010902240001000010000904430002317d5500090502020002220000090582020002"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, &(0x7f0000000780)={0x84, &(0x7f0000000300)={0x0, 0xc, 0x4, "ea57bb76"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$sierra_net(r0, 0x0, &(0x7f0000000880)={0x1c, &(0x7f0000000140)={0x40, 0x8, 0x4, "e290f269"}, 0x0, 0x0})
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1fd)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='3', 0x4e)
syz_genetlink_get_family_id$nl80211(&(0x7f0000000180), r0)
executing program 3:
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x4d)
mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000000), 0x8, &(0x7f0000000280)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@workdir={'workdir', 0x3d, './bus'}}]})
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000000), 0x82, 0x0)
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000140), 0x0, 0x0)
executing program 3:
write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz0\x00', {0x3, 0x2, 0x6, 0xfffa}, 0x3a, [0x0, 0xf, 0xf, 0x8, 0x80, 0x4, 0x3, 0x80000000, 0x20000006, 0x4d, 0x5, 0x5d, 0xa, 0x5, 0xffff2d38, 0xffffff03, 0x6, 0x3, 0x0, 0xe, 0x7, 0x0, 0x7, 0x23c5b, 0x1, 0xf, 0xd, 0x7, 0x0, 0xffffffff, 0xe661, 0x4, 0x7, 0x7, 0x8, 0x4c74, 0x80000000, 0x242, 0x3, 0xe, 0x0, 0x80008071, 0x7, 0x17, 0x1, 0x7, 0x6, 0xdb63, 0x4000008c, 0x6, 0x5, 0x0, 0x4, 0x0, 0x8008, 0x400, 0x80, 0x0, 0x5, 0x6, 0x6, 0x3, 0x1, 0xf], [0x10000007, 0x9, 0x8000012f, 0x2008004, 0x5, 0xfffffff3, 0x129432e6, 0xc8, 0xf9, 0xe, 0x2c0, 0x2, 0x9, 0x7f, 0x3, 0x0, 0x0, 0x5, 0x2f, 0x0, 0x312, 0x78, 0xe, 0xfffffffe, 0x6, 0x7, 0x7fff, 0x5, 0x400, 0x401, 0x7, 0x1, 0xff, 0x5, 0x1000005, 0x5f2e, 0x1, 0x4e2, 0x8, 0x4, 0xb, 0x10000, 0x9, 0x8, 0x1009, 0x800, 0x47, 0x8000, 0xc25, 0xfe000000, 0xffff, 0x0, 0x4, 0x9, 0x3, 0x3, 0x9, 0x1, 0x3, 0x3, 0x94f, 0x48c93690, 0x42, 0x3], [0x82, 0x408, 0x7, 0x5, 0xfffffffe, 0x6, 0x2, 0x9, 0x5, 0x8002, 0x4, 0x5, 0xb, 0x2, 0x5, 0x7, 0x0, 0x1ef, 0x5, 0x8, 0x86, 0x3, 0x303c, 0x3e7, 0xb, 0x5, 0x2, 0x2, 0x3, 0x2, 0x4, 0x6d01, 0x13, 0x38, 0x800003, 0x200, 0x80, 0x3, 0x3ff, 0x2950bfaf, 0xc8, 0xa2, 0x7, 0xa9, 0x5, 0x8, 0xac8, 0xca, 0x2, 0x3, 0x7ff, 0x12b, 0x4, 0x1, 0xa, 0x0, 0x1, 0x7b04, 0x7, 0x3, 0x3, 0x5, 0x4, 0x3c484551], [0x9, 0xbb33, 0x7, 0x0, 0x5, 0x93a, 0x5, 0x2, 0xfffffffc, 0xb9, 0xce7, 0x203, 0x2, 0x57, 0x2, 0x3, 0x0, 0x10000, 0xb8, 0x3, 0x28, 0xa620, 0x2, 0x5, 0x1, 0x7ff, 0x14c, 0x20a7, 0x6, 0x16, 0xffffffff, 0x80000000, 0x5, 0x8, 0x9, 0xfffffff9, 0xfffff000, 0x10000, 0x10001, 0x7e, 0x100, 0x9606, 0x7, 0xaf, 0x5, 0xfffffff9, 0x226, 0x5, 0x5, 0x8, 0x30b1d693, 0xb1f, 0x8, 0x7, 0x1, 0x6c1b, 0x0, 0x4, 0x5, 0xb1e, 0x6, 0x200, 0xffff3441, 0xfff]}, 0x45c)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000580)=ANY=[@ANYBLOB="5c000000020605000000000000000000000000000c00078005001500267d00000500010007000000050005000a000000050004"], 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x800)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000040), r0)
sendmsg$ETHTOOL_MSG_DEBUG_SET(r0, &(0x7f0000001540)={0x0, 0x0, &(0x7f0000001500)={&(0x7f0000000580)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000040200f2c8dc1b000000180001801400020073797a5f74756e0000000000000000000c000280"], 0x38}, 0x1, 0x0, 0x0, 0x20000844}, 0x0)
executing program 4:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
syz_usb_disconnect(r0)
syz_usb_connect$printer(0x4, 0x2d, &(0x7f0000000040)=ANY=[], 0x0)
openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0)
ioctl$EVIOCRMFF(r0, 0x40085507, &(0x7f00000000c0)=0x18)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
syz_ublk_add_dev(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x2e, 0x14, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, <r0=>0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f00000004c0)=@any_dev={0x3, 0xc26, 0x0, 0x0, 0x1000, 0x10000, 0xffffffffffffffff, 0x0, 0x4d}}}, &(0x7f0000000480)=<r1=>0x0)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
r3 = dup(r2)
syz_ublk_setup_queues(r3, r1, &(0x7f0000000180)={0x0, 0x1, 0x3000, 0x3, 0x255, 0x0, r3}, 0x0, 0x1, &(0x7f0000000340)={0x2e, 0xe, 0x0, 0xffffffffffffffff, 0xc0107520, 0x0, 0x0, 0x0, 0x1, {}, 0x1f, r0, '\x00', {0xfff5, 0x4, 0x0, 0x0}}, 0x0)
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)
executing program 1:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x1c, 0x1, 0x4, 0x101, 0x0, 0x0, {0x1, 0x0, 0x400}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x60000081}, 0x800)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000140)={0x1c, 0x1, 0x4, 0x5, 0x0, 0x0, {0x3, 0x0, 0x10}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x26088888)
close(0x3)
executing program 4:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f00000000c0), 0xffffffffffffffff)
r2 = socket$netlink(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'bridge_slave_0\x00', <r3=>0x0})
sendmsg$ETHTOOL_MSG_WOL_SET(r0, &(0x7f0000002d40)={0x0, 0x0, &(0x7f0000002d00)={&(0x7f0000001840)={0x20, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@ETHTOOL_A_WOL_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r3}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x2400cc00}, 0x0)
executing program 1:
sendmsg$IPCTNL_MSG_EXP_NEW(0xffffffffffffffff, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000480)={&(0x7f0000000a00)={0x190, 0x0, 0x2, 0x301, 0x0, 0x0, {0x7, 0x0, 0x2}, [@CTA_EXPECT_NAT={0xe0, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x70, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, {0x14, 0x4, @mcast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @loopback}, {0x8, 0x2, @broadcast}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x3a}}]}, @CTA_EXPECT_NAT_TUPLE={0x64, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x7}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x88}}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @local}, {0x14, 0x4, @remote}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x6}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x84}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_NAT={0x88, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x44, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @remote}, {0x8, 0x2, @multicast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x2f}}]}, @CTA_EXPECT_NAT_TUPLE={0x38, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x11}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @private=0xa010101}, {0x8, 0x2, @multicast1}}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_FLAGS={0x8, 0x8, 0x1, 0x0, 0x1}, @CTA_EXPECT_HELP_NAME={0xa, 0x6, 'H.245\x00'}]}, 0x190}}, 0x10)
r0 = socket(0x10, 0x803, 0x0)
sendto(r0, &(0x7f00000006c0)="120000001200e7ef007b00000000000000a1", 0x12, 0x0, 0x0, 0x0)
recvmmsg(r0, &(0x7f00000037c0)=[{{&(0x7f00000004c0)=@ethernet={0x0, @random}, 0xfdf4, &(0x7f0000000380)=[{&(0x7f0000000140)=""/100, 0x321}, {&(0x7f0000000280)=""/85, 0x21}, {&(0x7f0000000fc0)=""/4096, 0x197}, {&(0x7f0000000580)=""/106, 0x659}, {&(0x7f0000000980)=""/73, 0xd}, {&(0x7f0000000200)=""/77, 0x69}, {&(0x7f00000007c0)=""/141, 0xc4}, {&(0x7f00000001c0)=""/17, 0x1d8}], 0x21, &(0x7f0000000600)=""/191, 0x41}, 0x5}], 0x4000000000003b4, 0x2000, &(0x7f0000003700)={0x77359400})
ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
executing program 4:
capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080))
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$BTRFS_IOC_TREE_SEARCH_V2(r0, 0x5381, 0x0)
executing program 1:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
r2 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r2, &(0x7f0000000080)='./file0\x00', r2, &(0x7f00000000c0)='./file0\x00', 0x2)
executing program 1:
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff1000/0x3000)=nil, &(0x7f0000ff1000/0xf000)=nil, &(0x7f0000ff6000/0x3000)=nil, &(0x7f0000ff2000/0x1000)=nil, &(0x7f0000ff8000/0x8000)=nil, &(0x7f0000ffc000/0x2000)=nil, &(0x7f0000ffa000/0x2000)=nil, &(0x7f00000e6000/0x3000)=nil, &(0x7f0000ffa000/0x4000)=nil, &(0x7f0000ffa000/0x3000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
r0 = socket$inet6(0xa, 0x2, 0x0)
setsockopt$inet6_group_source_req(r0, 0x29, 0x2e, &(0x7f0000000180)={0x8, {{0xa, 0x4e21, 0xa3f, @mcast1, 0xbfd}}, {{0xa, 0x4e1d, 0x5, @remote, 0x40}}}, 0x108)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
getsockopt$inet6_buf(r0, 0x29, 0x30, &(0x7f0000000180)=""/214, &(0x7f0000000080)=0xd6)
executing program 4:
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x100000a, 0x204031, 0xffffffffffffffff, 0xec776000)
ioctl$FIBMAP(r0, 0x1, &(0x7f0000000100)=0xffffffff)
executing program 1:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xf, 0x204031, 0xffffffffffffffff, 0x2d5c000)
prctl$PR_MCE_KILL_GET(0x3d)
syz_io_uring_setup(0x100484c, &(0x7f0000000140)={0x0, 0xd351, 0x811, 0x3, 0x19e}, 0x0, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
executing program 4:
ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000140)={'wg0\x00'})
ioctl$sock_ipv6_tunnel_SIOCADDTUNNEL(0xffffffffffffffff, 0x89f1, &(0x7f0000000200)={'syztnl2\x00', 0x0})
socket$inet(0x2, 0x6, 0x8)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_EXP_DELETE(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000340)={0x24, 0x2, 0x2, 0x401, 0x0, 0x0, {0x5, 0x0, 0x8}, [@CTA_EXPECT_HELP_NAME={0xe, 0x6, 'irc-20000\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2000c884}, 0x44800)
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x5001})
r1 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000200)={'syzkaller1\x00', 0x1})
write$tun(r0, &(0x7f0000000240)={@void, @val={0x3, 0x0, 0x1c, 0x3, 0x14, 0x6}, @ipv6=@generic={0x8, 0x6, "7535a4", 0x0, 0x2f, 0xff, @remote, @mcast2}}, 0x32)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x180)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='7', 0x1)
mount(&(0x7f0000000040)=@filename='./proc/thread-self/fail-nth\x00', 0x0, &(0x7f0000000180)='qnx4\x00', 0x2000808, &(0x7f00000001c0)='asymmetric\x00')

program crashed: WARNING in ovl_dir_modified
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5, 5, 5, 5, 5, 5, 5, 5]
detailed listing:
executing program 1:
sendmsg$IPCTNL_MSG_EXP_NEW(0xffffffffffffffff, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000480)={&(0x7f0000000a00)={0x190, 0x0, 0x2, 0x301, 0x0, 0x0, {0x7, 0x0, 0x2}, [@CTA_EXPECT_NAT={0xe0, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x70, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, {0x14, 0x4, @mcast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @loopback}, {0x8, 0x2, @broadcast}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x3a}}]}, @CTA_EXPECT_NAT_TUPLE={0x64, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x7}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x88}}, @CTA_TUPLE_IP={0x2c, 0x1, 0x0, 0x1, @ipv6={{0x14, 0x3, @local}, {0x14, 0x4, @remote}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x6}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x84}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_NAT={0x88, 0xa, 0x0, 0x1, [@CTA_EXPECT_NAT_TUPLE={0x44, 0x2, 0x0, 0x1, [@CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x4}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x1}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @remote}, {0x8, 0x2, @multicast1}}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x2f}}]}, @CTA_EXPECT_NAT_TUPLE={0x38, 0x2, 0x0, 0x1, [@CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x11}}, @CTA_TUPLE_PROTO={0xc, 0x2, 0x0, 0x1, {0x5, 0x1, 0x21}}, @CTA_TUPLE_ZONE={0x6, 0x3, 0x1, 0x0, 0x2}, @CTA_TUPLE_IP={0x14, 0x1, 0x0, 0x1, @ipv4={{0x8, 0x1, @private=0xa010101}, {0x8, 0x2, @multicast1}}}]}, @CTA_EXPECT_NAT_DIR={0x8, 0x1, 0x1, 0x0, 0x1}]}, @CTA_EXPECT_FLAGS={0x8, 0x8, 0x1, 0x0, 0x1}, @CTA_EXPECT_HELP_NAME={0xa, 0x6, 'H.245\x00'}]}, 0x190}}, 0x10)
r0 = socket(0x10, 0x803, 0x0)
sendto(r0, &(0x7f00000006c0)="120000001200e7ef007b00000000000000a1", 0x12, 0x0, 0x0, 0x0)
recvmmsg(r0, &(0x7f00000037c0)=[{{&(0x7f00000004c0)=@ethernet={0x0, @random}, 0xfdf4, &(0x7f0000000380)=[{&(0x7f0000000140)=""/100, 0x321}, {&(0x7f0000000280)=""/85, 0x21}, {&(0x7f0000000fc0)=""/4096, 0x197}, {&(0x7f0000000580)=""/106, 0x659}, {&(0x7f0000000980)=""/73, 0xd}, {&(0x7f0000000200)=""/77, 0x69}, {&(0x7f00000007c0)=""/141, 0xc4}, {&(0x7f00000001c0)=""/17, 0x1d8}], 0x21, &(0x7f0000000600)=""/191, 0x41}, 0x5}], 0x4000000000003b4, 0x2000, &(0x7f0000003700)={0x77359400})
ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
executing program 4:
capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080))
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$BTRFS_IOC_TREE_SEARCH_V2(r0, 0x5381, 0x0)
executing program 1:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
r2 = open_tree(0xffffffffffffff9c, &(0x7f0000000640)='\x00', 0x89901)
move_mount(r2, &(0x7f0000000080)='./file0\x00', r2, &(0x7f00000000c0)='./file0\x00', 0x2)
executing program 1:
prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff1000/0x3000)=nil, &(0x7f0000ff1000/0xf000)=nil, &(0x7f0000ff6000/0x3000)=nil, &(0x7f0000ff2000/0x1000)=nil, &(0x7f0000ff8000/0x8000)=nil, &(0x7f0000ffc000/0x2000)=nil, &(0x7f0000ffa000/0x2000)=nil, &(0x7f00000e6000/0x3000)=nil, &(0x7f0000ffa000/0x4000)=nil, &(0x7f0000ffa000/0x3000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68)
r0 = socket$inet6(0xa, 0x2, 0x0)
setsockopt$inet6_group_source_req(r0, 0x29, 0x2e, &(0x7f0000000180)={0x8, {{0xa, 0x4e21, 0xa3f, @mcast1, 0xbfd}}, {{0xa, 0x4e1d, 0x5, @remote, 0x40}}}, 0x108)
mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1)
getsockopt$inet6_buf(r0, 0x29, 0x30, &(0x7f0000000180)=""/214, &(0x7f0000000080)=0xd6)
executing program 4:
memfd_create(&(0x7f0000000000)='/dev/sda1\x00', 0x1)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x100000a, 0x204031, 0xffffffffffffffff, 0xec776000)
ioctl$FIBMAP(r0, 0x1, &(0x7f0000000100)=0xffffffff)
executing program 1:
mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0xf, 0x204031, 0xffffffffffffffff, 0x2d5c000)
prctl$PR_MCE_KILL_GET(0x3d)
syz_io_uring_setup(0x100484c, &(0x7f0000000140)={0x0, 0xd351, 0x811, 0x3, 0x19e}, 0x0, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
mlock(&(0x7f0000000000/0x800000)=nil, 0x800000)
executing program 4:
ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000140)={'wg0\x00'})
ioctl$sock_ipv6_tunnel_SIOCADDTUNNEL(0xffffffffffffffff, 0x89f1, &(0x7f0000000200)={'syztnl2\x00', 0x0})
socket$inet(0x2, 0x6, 0x8)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$IPCTNL_MSG_EXP_DELETE(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000340)={0x24, 0x2, 0x2, 0x401, 0x0, 0x0, {0x5, 0x0, 0x8}, [@CTA_EXPECT_HELP_NAME={0xe, 0x6, 'irc-20000\x00'}]}, 0x24}, 0x1, 0x0, 0x0, 0x2000c884}, 0x44800)
executing program 0:
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000200)={'syzkaller1\x00', 0x5001})
r1 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000200)={'syzkaller1\x00', 0x1})
write$tun(r0, &(0x7f0000000240)={@void, @val={0x3, 0x0, 0x1c, 0x3, 0x14, 0x6}, @ipv6=@generic={0x8, 0x6, "7535a4", 0x0, 0x2f, 0xff, @remote, @mcast2}}, 0x32)
executing program 4:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x180)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='7', 0x1)
mount(&(0x7f0000000040)=@filename='./proc/thread-self/fail-nth\x00', 0x0, &(0x7f0000000180)='qnx4\x00', 0x2000808, &(0x7f00000001c0)='asymmetric\x00')

program did not crash
bisect: testing without sub-chunk 3/3
testing program (duration=32s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5]
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x36, &(0x7f0000000240)=ANY=[@ANYBLOB="12010000772904202404019957c2010203010902240001000010000904430002317d5500090502020002220000090582020002"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, &(0x7f0000000780)={0x84, &(0x7f0000000300)={0x0, 0xc, 0x4, "ea57bb76"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$printer(r0, 0x0, 0x0)
syz_usb_control_io$sierra_net(r0, 0x0, &(0x7f0000000880)={0x1c, &(0x7f0000000140)={0x40, 0x8, 0x4, "e290f269"}, 0x0, 0x0})
executing program 3:
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./proc\x00', 0x1fd)
mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f0000000100)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/thread-self/fail-nth\x00', 0x2, 0x0)
write(r0, &(0x7f0000000000)='3', 0x4e)
syz_genetlink_get_family_id$nl80211(&(0x7f0000000180), r0)
executing program 3:
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x4d)
mount$overlay(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000000), 0x8, &(0x7f0000000280)={[{@upperdir={'upperdir', 0x3d, './file0'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@workdir={'workdir', 0x3d, './bus'}}]})
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000000), 0x82, 0x0)
mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000140), 0x0, 0x0)
executing program 3:
write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz0\x00', {0x3, 0x2, 0x6, 0xfffa}, 0x3a, [0x0, 0xf, 0xf, 0x8, 0x80, 0x4, 0x3, 0x80000000, 0x20000006, 0x4d, 0x5, 0x5d, 0xa, 0x5, 0xffff2d38, 0xffffff03, 0x6, 0x3, 0x0, 0xe, 0x7, 0x0, 0x7, 0x23c5b, 0x1, 0xf, 0xd, 0x7, 0x0, 0xffffffff, 0xe661, 0x4, 0x7, 0x7, 0x8, 0x4c74, 0x80000000, 0x242, 0x3, 0xe, 0x0, 0x80008071, 0x7, 0x17, 0x1, 0x7, 0x6, 0xdb63, 0x4000008c, 0x6, 0x5, 0x0, 0x4, 0x0, 0x8008, 0x400, 0x80, 0x0, 0x5, 0x6, 0x6, 0x3, 0x1, 0xf], [0x10000007, 0x9, 0x8000012f, 0x2008004, 0x5, 0xfffffff3, 0x129432e6, 0xc8, 0xf9, 0xe, 0x2c0, 0x2, 0x9, 0x7f, 0x3, 0x0, 0x0, 0x5, 0x2f, 0x0, 0x312, 0x78, 0xe, 0xfffffffe, 0x6, 0x7, 0x7fff, 0x5, 0x400, 0x401, 0x7, 0x1, 0xff, 0x5, 0x1000005, 0x5f2e, 0x1, 0x4e2, 0x8, 0x4, 0xb, 0x10000, 0x9, 0x8, 0x1009, 0x800, 0x47, 0x8000, 0xc25, 0xfe000000, 0xffff, 0x0, 0x4, 0x9, 0x3, 0x3, 0x9, 0x1, 0x3, 0x3, 0x94f, 0x48c93690, 0x42, 0x3], [0x82, 0x408, 0x7, 0x5, 0xfffffffe, 0x6, 0x2, 0x9, 0x5, 0x8002, 0x4, 0x5, 0xb, 0x2, 0x5, 0x7, 0x0, 0x1ef, 0x5, 0x8, 0x86, 0x3, 0x303c, 0x3e7, 0xb, 0x5, 0x2, 0x2, 0x3, 0x2, 0x4, 0x6d01, 0x13, 0x38, 0x800003, 0x200, 0x80, 0x3, 0x3ff, 0x2950bfaf, 0xc8, 0xa2, 0x7, 0xa9, 0x5, 0x8, 0xac8, 0xca, 0x2, 0x3, 0x7ff, 0x12b, 0x4, 0x1, 0xa, 0x0, 0x1, 0x7b04, 0x7, 0x3, 0x3, 0x5, 0x4, 0x3c484551], [0x9, 0xbb33, 0x7, 0x0, 0x5, 0x93a, 0x5, 0x2, 0xfffffffc, 0xb9, 0xce7, 0x203, 0x2, 0x57, 0x2, 0x3, 0x0, 0x10000, 0xb8, 0x3, 0x28, 0xa620, 0x2, 0x5, 0x1, 0x7ff, 0x14c, 0x20a7, 0x6, 0x16, 0xffffffff, 0x80000000, 0x5, 0x8, 0x9, 0xfffffff9, 0xfffff000, 0x10000, 0x10001, 0x7e, 0x100, 0x9606, 0x7, 0xaf, 0x5, 0xfffffff9, 0x226, 0x5, 0x5, 0x8, 0x30b1d693, 0xb1f, 0x8, 0x7, 0x1, 0x6c1b, 0x0, 0x4, 0x5, 0xb1e, 0x6, 0x200, 0xffff3441, 0xfff]}, 0x45c)
sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000580)=ANY=[@ANYBLOB="5c000000020605000000000000000000000000000c00078005001500267d00000500010007000000050005000a000000050004"], 0x5c}, 0x1, 0x0, 0x0, 0x810}, 0x800)
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000040), r0)
sendmsg$ETHTOOL_MSG_DEBUG_SET(r0, &(0x7f0000001540)={0x0, 0x0, &(0x7f0000001500)={&(0x7f0000000580)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000040200f2c8dc1b000000180001801400020073797a5f74756e0000000000000000000c000280"], 0x38}, 0x1, 0x0, 0x0, 0x20000844}, 0x0)
executing program 4:
r0 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0)
syz_usb_disconnect(r0)
syz_usb_connect$printer(0x4, 0x2d, &(0x7f0000000040)=ANY=[], 0x0)
openat$kvm(0xffffff9c, &(0x7f00000000c0), 0x800, 0x0)
ioctl$EVIOCRMFF(r0, 0x40085507, &(0x7f00000000c0)=0x18)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
syz_ublk_add_dev(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x2e, 0x14, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, <r0=>0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f00000004c0)=@any_dev={0x3, 0xc26, 0x0, 0x0, 0x1000, 0x10000, 0xffffffffffffffff, 0x0, 0x4d}}}, &(0x7f0000000480)=<r1=>0x0)
r2 = socket$inet6_tcp(0xa, 0x1, 0x0)
r3 = dup(r2)
syz_ublk_setup_queues(r3, r1, &(0x7f0000000180)={0x0, 0x1, 0x3000, 0x3, 0x255, 0x0, r3}, 0x0, 0x1, &(0x7f0000000340)={0x2e, 0xe, 0x0, 0xffffffffffffffff, 0xc0107520, 0x0, 0x0, 0x0, 0x1, {}, 0x1f, r0, '\x00', {0xfff5, 0x4, 0x0, 0x0}}, 0x0)
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)
executing program 1:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x1c, 0x1, 0x4, 0x101, 0x0, 0x0, {0x1, 0x0, 0x400}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x60000081}, 0x800)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000140)={0x1c, 0x1, 0x4, 0x5, 0x0, 0x0, {0x3, 0x0, 0x10}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x26088888)
close(0x3)
executing program 4:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f00000000c0), 0xffffffffffffffff)
r2 = socket$netlink(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'bridge_slave_0\x00', <r3=>0x0})
sendmsg$ETHTOOL_MSG_WOL_SET(r0, &(0x7f0000002d40)={0x0, 0x0, &(0x7f0000002d00)={&(0x7f0000001840)={0x20, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@ETHTOOL_A_WOL_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r3}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x2400cc00}, 0x0)

program crashed: WARNING in ovl_dir_modified
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <11>
bisect: split chunk #0 of len 11 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5, 5, 5, 5]
detailed listing:
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)
executing program 1:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x1c, 0x1, 0x4, 0x101, 0x0, 0x0, {0x1, 0x0, 0x400}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x60000081}, 0x800)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000140)={0x1c, 0x1, 0x4, 0x5, 0x0, 0x0, {0x3, 0x0, 0x10}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x26088888)
close(0x3)
executing program 4:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f00000000c0), 0xffffffffffffffff)
r2 = socket$netlink(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'bridge_slave_0\x00', <r3=>0x0})
sendmsg$ETHTOOL_MSG_WOL_SET(r0, &(0x7f0000002d40)={0x0, 0x0, &(0x7f0000002d00)={&(0x7f0000001840)={0x20, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@ETHTOOL_A_WOL_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r3}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x2400cc00}, 0x0)

program crashed: WARNING in shmem_rmdir
bisect: the chunk can be dropped
bisect: testing without sub-chunk 2/2
bisect: no need to test this chunk, it's definitely needed
bisect: split chunks (needed=true): <5>
bisect: split chunk #0 of len 5 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5]
detailed listing:
executing program 1:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4000}, 0x0)
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000040)={0x1c, 0x1, 0x4, 0x101, 0x0, 0x0, {0x1, 0x0, 0x400}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x60000081}, 0x800)
sendmsg$NFULNL_MSG_CONFIG(r0, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000140)={0x1c, 0x1, 0x4, 0x5, 0x0, 0x0, {0x3, 0x0, 0x10}, [@NFULA_CFG_CMD={0x5, 0x1, 0x1}]}, 0x1c}, 0x1, 0x0, 0x0, 0x8000}, 0x26088888)
close(0x3)
executing program 4:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$ethtool(&(0x7f00000000c0), 0xffffffffffffffff)
r2 = socket$netlink(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'bridge_slave_0\x00', <r3=>0x0})
sendmsg$ETHTOOL_MSG_WOL_SET(r0, &(0x7f0000002d40)={0x0, 0x0, &(0x7f0000002d00)={&(0x7f0000001840)={0x20, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@ETHTOOL_A_WOL_HEADER={0xc, 0x1, 0x0, 0x1, [@ETHTOOL_A_HEADER_DEV_INDEX={0x8, 0x1, r3}]}]}, 0x20}, 0x1, 0x0, 0x0, 0x2400cc00}, 0x0)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5, 5]
detailed listing:
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)

program crashed: WARNING in shmem_rmdir
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <3>
bisect: split chunk #0 of len 3 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$IORING_OFF_SQ_RING-mkdirat-mount-openat-ioctl
detailed listing:
executing program 3:
mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x142)
mount(0x0, &(0x7f0000000440)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./proc/mtrr\x00', 0x2, 0x0)
ioctl(r0, 0x40104d09, 0x0)

program did not crash
bisect: testing without sub-chunk 2/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5]
detailed listing:
executing program 1:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x3a8bc000)
socket$inet(0x2, 0x2, 0x1)
prlimit64(0x0, 0x0, &(0x7f0000000140)={0x0, 0xfffffffffffffffd}, 0x0)
setitimer(0x2, &(0x7f0000000040)={{0x0, 0x2710}, {0x0, 0x2710}}, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15)
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)

program crashed: WARNING in shmem_rmdir
bisect: the chunk can be dropped
bisect: split chunks (needed=true): <2>
bisect: split chunk #0 of len 2 into 2 parts
bisect: testing without sub-chunk 1/2
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs-chdir-openat$dir
detailed listing:
executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)

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

executing program 3:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)


bisect: trying to concatenate
bisect: concatenate 1 entries
testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs-chdir-openat$dir
detailed listing:
executing program 0:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')
openat$dir(0xffffffffffffff9c, &(0x7f0000000280)='./file0\x00', 0x80, 0x143)

program crashed: WARNING in shmem_rmdir
bisect: concatenation succeeded
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs-chdir
detailed listing:
executing program 0:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)
chdir(&(0x7f00000003c0)='./bus\x00')

program crashed: WARNING in shmem_rmdir
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs
detailed listing:
executing program 0:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program crashed: WARNING in shmem_rmdir
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir
detailed listing:
executing program 0:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)

program did not crash
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mount$incfs
detailed listing:
executing program 0:
creat(&(0x7f0000000180)='./file0\x00', 0xf0)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program did not crash
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program crashed: WARNING in shmem_rmdir
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(0x0, 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program did not crash
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program did not crash
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', 0x0, &(0x7f0000000000), 0xc002, 0x0)

program did not crash
testing program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0xc002, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=41.875234158s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
simplifying C reproducer
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program did not crash
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing compiled C program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
program crashed: WARNING in shmem_rmdir
testing program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program crashed: WARNING in shmem_rmdir
validation run: crashed=true
testing program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program crashed: WARNING in shmem_rmdir
validation run: crashed=true
testing program (duration=41.875234158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs
detailed listing:
executing program 0:
mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e)
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0)

program crashed: WARNING in shmem_rmdir
validation run: crashed=true
reproducing took 43m12.207311562s
repro crashed as (corrupted=false):
veth0_vlan: entered promiscuous mode
veth1_macvtap: entered promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 375 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340
Modules linked in:
CPU: 1 UID: 0 PID: 375 Comm: syz-executor Not tainted syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340
Code: 04 00 00 be 08 00 00 00 e8 ff 0b ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 32 21 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
RSP: 0018:ffffc900011bfc88 EFLAGS: 00010293
RAX: ffffffff81f2576e RBX: ffff88811573a958 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcb0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000237f80 R12: dffffc0000000000
R13: 1ffff11022ae7534 R14: ffff88811573a9a0 R15: 0000000000000000
FS:  00005555749fb500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555574a1e958 CR3: 00000001130a0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 shmem_rmdir+0x5f/0x90 mm/shmem.c:3820
 vfs_rmdir+0x3db/0x560 fs/namei.c:4348
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 fs/inode.c:452
Write of size 4 at addr 0000000000000168 by task syz-executor/375

CPU: 0 UID: 0 PID: 375 Comm: syz-executor Tainted: G        W          syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_report+0x3d/0x70 mm/kasan/report.c:484
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x25a/0x2b0 mm/kasan/generic.c:189
 __kasan_check_write+0x18/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline]
 ihold+0x24/0x70 fs/inode.c:452
 d_delete_notify include/linux/fsnotify.h:357 [inline]
 vfs_rmdir+0x25c/0x560 fs/namei.c:4361
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000168
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 8000000125ea6067 P4D 8000000125ea6067 PUD 0 
Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 375 Comm: syz-executor Tainted: G    B   W          syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Tainted: [B]=BAD_PAGE, [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline]
RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline]
RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline]
RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452
Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 1d 18 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 bc 02 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 2d
RSP: 0018:ffffc900011bfcc8 EFLAGS: 00010246
RAX: ffff888113f4b900 RBX: 0000000000000000 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcd8 R08: ffffffff88bbb947 R09: 1ffffffff1177728
R10: dffffc0000000000 R11: fffffbfff1177729 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00005555749fb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000168 CR3: 00000001130a0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 d_delete_notify include/linux/fsnotify.h:357 [inline]
 vfs_rmdir+0x25c/0x560 fs/namei.c:4361
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
Modules linked in:
CR2: 0000000000000168
---[ end trace 0000000000000000 ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline]
RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline]
RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline]
RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452
Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 1d 18 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 bc 02 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 2d
RSP: 0018:ffffc900011bfcc8 EFLAGS: 00010246
RAX: ffff888113f4b900 RBX: 0000000000000000 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcd8 R08: ffffffff88bbb947 R09: 1ffffffff1177728
R10: dffffc0000000000 R11: fffffbfff1177729 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00005555749fb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000168 CR3: 00000001130a0000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	f3 0f 1e fa          	endbr64
   4:	55                   	push   %rbp
   5:	48 89 e5             	mov    %rsp,%rbp
   8:	41 56                	push   %r14
   a:	53                   	push   %rbx
   b:	48 89 fb             	mov    %rdi,%rbx
   e:	e8 1d 18 95 ff       	call   0xff951830
  13:	48 8d bb 68 01 00 00 	lea    0x168(%rbx),%rdi
  1a:	be 04 00 00 00       	mov    $0x4,%esi
  1f:	e8 bc 02 ee ff       	call   0xffee02e0
  24:	41 be 01 00 00 00    	mov    $0x1,%r14d
* 2a:	f0 44 0f c1 b3 68 01 	lock xadd %r14d,0x168(%rbx) <-- trapping instruction
  31:	00 00
  33:	41 ff c6             	inc    %r14d
  36:	bf 02 00 00 00       	mov    $0x2,%edi
  3b:	44 89 f6             	mov    %r14d,%esi
  3e:	e8                   	.byte 0xe8
  3f:	2d                   	.byte 0x2d

final repro crashed as (corrupted=false):
veth0_vlan: entered promiscuous mode
veth1_macvtap: entered promiscuous mode
------------[ cut here ]------------
WARNING: CPU: 1 PID: 375 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340
Modules linked in:
CPU: 1 UID: 0 PID: 375 Comm: syz-executor Not tainted syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340
Code: 04 00 00 be 08 00 00 00 e8 ff 0b ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 32 21 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
RSP: 0018:ffffc900011bfc88 EFLAGS: 00010293
RAX: ffffffff81f2576e RBX: ffff88811573a958 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcb0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000237f80 R12: dffffc0000000000
R13: 1ffff11022ae7534 R14: ffff88811573a9a0 R15: 0000000000000000
FS:  00005555749fb500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555574a1e958 CR3: 00000001130a0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 shmem_rmdir+0x5f/0x90 mm/shmem.c:3820
 vfs_rmdir+0x3db/0x560 fs/namei.c:4348
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 fs/inode.c:452
Write of size 4 at addr 0000000000000168 by task syz-executor/375

CPU: 0 UID: 0 PID: 375 Comm: syz-executor Tainted: G        W          syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_report+0x3d/0x70 mm/kasan/report.c:484
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x25a/0x2b0 mm/kasan/generic.c:189
 __kasan_check_write+0x18/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_inc_return include/linux/atomic/atomic-instrumented.h:453 [inline]
 ihold+0x24/0x70 fs/inode.c:452
 d_delete_notify include/linux/fsnotify.h:357 [inline]
 vfs_rmdir+0x25c/0x560 fs/namei.c:4361
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000168
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 8000000125ea6067 P4D 8000000125ea6067 PUD 0 
Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 375 Comm: syz-executor Tainted: G    B   W          syzkaller #0 d3eed1e307a834e4006f99660f38f56e8d371643
Tainted: [B]=BAD_PAGE, [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline]
RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline]
RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline]
RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452
Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 1d 18 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 bc 02 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 2d
RSP: 0018:ffffc900011bfcc8 EFLAGS: 00010246
RAX: ffff888113f4b900 RBX: 0000000000000000 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcd8 R08: ffffffff88bbb947 R09: 1ffffffff1177728
R10: dffffc0000000000 R11: fffffbfff1177729 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00005555749fb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000168 CR3: 00000001130a0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 d_delete_notify include/linux/fsnotify.h:357 [inline]
 vfs_rmdir+0x25c/0x560 fs/namei.c:4361
 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1970
 deactivate_locked_super+0xd2/0x270 fs/super.c:478
 deactivate_super+0xb8/0xe0 fs/super.c:511
 cleanup_mnt+0x438/0x4d0 fs/namespace.c:1380
 __cleanup_mnt+0x1d/0x40 fs/namespace.c:1387
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdda759f3d7
Code: a2 c7 05 1c 63 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce8491a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fdda759f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce8491af0
RBP: 00007ffce8491af0 R08: 00007ffce8492af0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce8492b80
R13: 00007fdda7634d23 R14: 0000000000006972 R15: 00007ffce8492bc0
 </TASK>
Modules linked in:
CR2: 0000000000000168
---[ end trace 0000000000000000 ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:85 [inline]
RIP: 0010:raw_atomic_add_return include/linux/atomic/atomic-arch-fallback.h:564 [inline]
RIP: 0010:raw_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:1020 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:454 [inline]
RIP: 0010:ihold+0x2a/0x70 fs/inode.c:452
Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 1d 18 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 bc 02 ee ff 41 be 01 00 00 00 <f0> 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 2d
RSP: 0018:ffffc900011bfcc8 EFLAGS: 00010246
RAX: ffff888113f4b900 RBX: 0000000000000000 RCX: ffff888113f4b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900011bfcd8 R08: ffffffff88bbb947 R09: 1ffffffff1177728
R10: dffffc0000000000 R11: fffffbfff1177729 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00005555749fb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000168 CR3: 00000001130a0000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	f3 0f 1e fa          	endbr64
   4:	55                   	push   %rbp
   5:	48 89 e5             	mov    %rsp,%rbp
   8:	41 56                	push   %r14
   a:	53                   	push   %rbx
   b:	48 89 fb             	mov    %rdi,%rbx
   e:	e8 1d 18 95 ff       	call   0xff951830
  13:	48 8d bb 68 01 00 00 	lea    0x168(%rbx),%rdi
  1a:	be 04 00 00 00       	mov    $0x4,%esi
  1f:	e8 bc 02 ee ff       	call   0xffee02e0
  24:	41 be 01 00 00 00    	mov    $0x1,%r14d
* 2a:	f0 44 0f c1 b3 68 01 	lock xadd %r14d,0x168(%rbx) <-- trapping instruction
  31:	00 00
  33:	41 ff c6             	inc    %r14d
  36:	bf 02 00 00 00       	mov    $0x2,%edi
  3b:	44 89 f6             	mov    %r14d,%esi
  3e:	e8                   	.byte 0xe8
  3f:	2d                   	.byte 0x2d