Extracting prog: 14m17.503880241s Minimizing prog: 11m26.457511003s Simplifying prog options: 0s Extracting C: 21.764607468s Simplifying C: 11m29.882878237s extracting reproducer from 29 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}}): syz_usb_connect-socket-read-clock_gettime-pselect6 detailed listing: executing program 0: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 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}}): mkdirat-mkdirat-mount$overlay-chdir-openat$cgroup_ro detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 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}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hiddev-ioctl$HIDIOCGFIELDINFO detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000207d1e5a2d00000000000109022400010000000009040000010300000009210000000122080009058103"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="002208000000a20100c3"], 0x0}, 0x0) r1 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0) ioctl$HIDIOCGFIELDINFO(r1, 0xc038480a, &(0x7f0000000640)={0x1, 0x1, 0x0, 0x9, 0x9, 0x7, 0x2, 0x8, 0x0, 0x3, 0x21f, 0x1, 0x9, 0x2}) 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}}): syz_usb_connect$hid-sendmsg$inet-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x5, 0x36, &(0x7f00000001c0)=ANY=[@ANYBLOB="12010000000000404c05f20dafd60000000109022400010000000009040000010300010009210101000122050009058103"], 0x0) sendmsg$inet(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000180)="96bc1480", 0x4}], 0x1}, 0x24048804) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f00000003c0)={0x2c, &(0x7f0000000000)=ANY=[@ANYBLOB="000657"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000e40)={0x84, &(0x7f0000000180)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_EXIT_HYPERCALL-ioctl$KVM_SET_GSI_ROUTING-mprotect detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x81, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CAP_EXIT_HYPERCALL(r1, 0x4068aea3, &(0x7f0000000040)={0x79, 0x0, 0xc}) ioctl$KVM_SET_GSI_ROUTING(r1, 0x4008ae6a, &(0x7f0000000240)={0x1, 0x0, [{0x0, 0x4, 0x0, 0x0, @irqchip={0x80000000, 0xa04c0000}}]}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) 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$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CAP_EXIT_HYPERCALL-ioctl$KVM_SET_GSI_ROUTING-mprotect detailed listing: executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x81, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CAP_EXIT_HYPERCALL(r1, 0x4068aea3, &(0x7f0000000040)={0x79, 0x0, 0xc}) ioctl$KVM_SET_GSI_ROUTING(r1, 0x4008ae6a, &(0x7f0000000240)={0x1, 0x0, [{0x0, 0x4, 0x0, 0x0, @irqchip={0x80000000, 0xa04c0000}}]}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) program did not crash single: failed to extract reproducer bisect: bisecting 29 programs with base timeout 30s testing program (duration=37s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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, 5, 5, 5, 5, 5, 5, 5, 5, 5] detailed listing: executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nl80211(0x0, r0) sendmsg$NL80211_CMD_RELOAD_REGDB(r0, 0x0, 0x20000000) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f00000002c0), 0xffffffffffffffff) sendmsg$TIPC_NL_LINK_GET(r0, &(0x7f00000005c0)={0x0, 0x0, &(0x7f0000000580)={&(0x7f0000000080)={0x28, r1, 0x1, 0x70bd25, 0x25dfdbfb, {}, [@TIPC_NLA_LINK={0x10, 0x4, 0x0, 0x1, [@TIPC_NLA_LINK_NAME={0x9, 0x1, 'syz0\x00'}]}, @TIPC_NLA_MEDIA={0x4}]}, 0x28}, 0x1, 0x0, 0x0, 0x800}, 0x8080) executing program 0: mkdir(&(0x7f0000001a80)='./file0\x00', 0x18b) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) chroot(&(0x7f0000000100)='./file0\x00') mount$bind(&(0x7f0000000040)='.\x00', &(0x7f00000008c0)='./file0\x00', 0x0, 0x2a05004, 0x0) pivot_root(&(0x7f00000002c0)='./file0/../file0\x00', &(0x7f0000000240)='./file0\x00') executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000840)='memory.events.local\x00', 0x275a, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r0, 0x0) r1 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) setsockopt$bt_BT_CHANNEL_POLICY(r1, 0x112, 0xa, 0x0, 0x0) syslog(0x3, &(0x7f0000000000)=""/185, 0x64075da62934d5d1) executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x81, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CAP_EXIT_HYPERCALL(r1, 0x4068aea3, &(0x7f0000000040)={0x79, 0x0, 0xc}) ioctl$KVM_SET_GSI_ROUTING(r1, 0x4008ae6a, &(0x7f0000000240)={0x1, 0x0, [{0x0, 0x4, 0x0, 0x0, @irqchip={0x80000000, 0xa04c0000}}]}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) executing program 32: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x81, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_CAP_EXIT_HYPERCALL(r1, 0x4068aea3, &(0x7f0000000040)={0x79, 0x0, 0xc}) ioctl$KVM_SET_GSI_ROUTING(r1, 0x4008ae6a, &(0x7f0000000240)={0x1, 0x0, [{0x0, 0x4, 0x0, 0x0, @irqchip={0x80000000, 0xa04c0000}}]}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) executing program 4: mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) prlimit64(0x0, 0x6, &(0x7f0000000040), 0x0) r0 = syz_ublk_setup_io_uring(0x20, &(0x7f0000000340)={0x0, 0x0, 0x1000, 0x240002, 0x1e8}, &(0x7f0000000000)=0x0, &(0x7f0000000040)=0x0, &(0x7f0000000140)=0x0) syz_ublk_add_dev(0xffffffffffffffff, r1, r2, r3, &(0x7f0000000180)={0x2e, 0x0, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x9, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f00000000c0)=@any_dev={0x4, 0x90d, 0x0, 0x0, 0x1000, 0x4, 0x0, 0x0, 0x1a4}}}, &(0x7f0000000280)=0x0) syz_ublk_setup_queues(r0, r5, &(0x7f0000000200)={0x0, 0x1463, 0x10700, 0x3, 0xb2}, &(0x7f0000000d40)=[{0x0, 0x0, 0xffffffffffffffff, {0x0, 0x4485, 0x10002, 0x401, 0x31c, 0x0, r0}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x920b, 0x2, 0x0, 0x2000008, 0x0, r0}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x1, 0x10, 0x1, 0x902c4, 0x0, r0}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x3a0b, 0x400, 0x0, 0x400216, 0x0, r0}}], 0x4, &(0x7f0000001540)={0x2e, 0x6, 0x0, 0xffffffffffffffff, 0xc0107520, 0x0, 0x0, 0x0, 0x72ccfb459c83c565, {0x6}, 0x0, r4, '\x00', {0x3, 0xc8b, 0x0, 0x0}}, 0x0) executing program 4: symlink(&(0x7f0000000040)='./proc_mnt/irq/11/smp_affinity\x00', &(0x7f0000000280)='./bus\x00') mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc_mnt\x00', 0x1ed) mount(0x0, &(0x7f0000000080)='./proc_mnt\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0) setxattr$incfs_id(&(0x7f0000000100)='./bus\x00', &(0x7f0000000340), 0x0, 0x0, 0x2) creat(&(0x7f0000000380)='./bus\x00', 0x0) executing program 4: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$inet(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000280)=[{&(0x7f0000000080)="88", 0x1}], 0x1}, 0x45) recvmsg$unix(r0, &(0x7f0000000140)={0x0, 0x0, 0x0}, 0x21) sendmsg$inet(r1, &(0x7f0000000a40)={0x0, 0x0, &(0x7f00000009c0)=[{&(0x7f00000000c0)='c', 0x1}], 0x1}, 0x11) recvmsg$unix(r0, &(0x7f0000000300)={0x0, 0x43, 0x0}, 0x121) executing program 4: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000840)='memory.events.local\x00', 0x275a, 0x0) write$binfmt_script(r0, &(0x7f00000003c0), 0x4) mmap(&(0x7f0000146000/0x2000)=nil, 0x2000, 0xb, 0x28011, r0, 0x0) madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15) lseek(r0, 0x0, 0x4) executing program 4: r0 = open(&(0x7f0000000000)='./file0\x00', 0x80140, 0x38) fcntl$setsig(r0, 0xa, 0x21) fcntl$setlease(r0, 0x400, 0x1) open$dir(&(0x7f0000000080)='./file0\x00', 0x40000, 0x0) close_range(r0, 0xffffffffffffffff, 0x0) executing program 4: r0 = syz_usb_connect$hid(0x5, 0x36, &(0x7f00000001c0)=ANY=[@ANYBLOB="12010000000000404c05f20dafd60000000109022400010000000009040000010300010009210101000122050009058103"], 0x0) sendmsg$inet(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000180)="96bc1480", 0x4}], 0x1}, 0x24048804) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f00000003c0)={0x2c, &(0x7f0000000000)=ANY=[@ANYBLOB="000657"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000e40)={0x84, &(0x7f0000000180)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_int(r0, 0x107, 0xa, &(0x7f0000000080)=0x2, 0x4) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000100)={'batadv_slave_0\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0xf7, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000040)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x0, 0x0, 0xffffffff}, 0x1c) executing program 2: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x8242, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_IRQCHIP(r1, 0x4020aeb2, &(0x7f0000012300)={0x0, 0x12c, @ioapic={0x70000, 0xc8f, 0xfffff5ab, 0x7fffffff, 0x0, [{0x8, 0x81, 0xfd, '\x00', 0x7}, {0x0, 0x3, 0x1, '\x00', 0x6}, {0x7, 0x3, 0xe, '\x00', 0x3b}, {0x4a, 0xe, 0xd6, '\x00', 0x86}, {0xd, 0x2, 0xa, '\x00', 0x2}, {0xd, 0x1, 0xe9, '\x00', 0x3}, {0xff, 0xa, 0x7, '\x00', 0x6}, {0x8, 0xd, 0x2a, '\x00', 0x8}, {0x4, 0x0, 0xa, '\x00', 0x2}, {0x8, 0xd6, 0x3, '\x00', 0x8}, {0x9e, 0x6, 0x3}, {0x2, 0x9, 0x1, '\x00', 0x6f}, {0x45, 0x51, 0x3}, {0x10, 0xfc, 0x0, '\x00', 0x1}, {0x8, 0x2, 0x9a, '\x00', 0x4b}, {0x5, 0x1b, 0xfe, '\x00', 0x3}, {0x2, 0xa, 0xd6, '\x00', 0x8}, {0xa, 0x0, 0xca, '\x00', 0x7}, {0x0, 0x7, 0x4, '\x00', 0x1a}, {0x3, 0x8, 0x81, '\x00', 0xda}, {0x3, 0x7, 0x5, '\x00', 0x6}, {0x9, 0x3, 0x1, '\x00', 0x2}, {0x87, 0x21, 0x7, '\x00', 0x7}, {0x1, 0x9, 0x0, '\x00', 0x46}]}}) ioctl$KVM_RUN(r2, 0xae80, 0x0) executing program 2: r0 = openat$rnullb(0xffffffffffffff9c, &(0x7f0000000000), 0x109640, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2000003, 0x12, r0, 0x969b5000) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000000000/0x400000)=nil) fadvise64(r0, 0x5, 0x4, 0x2) mlock(&(0x7f0000000000/0x800000)=nil, 0x800000) executing program 2: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000001c0), 0x1123102, 0x0) pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RGETLOCK(r2, &(0x7f0000000040)=ANY=[], 0xffffff6a) splice(r1, 0x0, r0, 0x0, 0x40010003, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x1b) executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f0000000000)=0x100000001, 0x4) connect$inet6(r0, &(0x7f0000000480)={0xa, 0x0, 0x0, @loopback}, 0x1c) setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000100), 0x4) setsockopt$inet6_tcp_TLS_TX(r0, 0x11a, 0x1, 0x0, 0x0) executing program 3: r0 = openat$rnullb(0xffffffffffffff9c, &(0x7f0000000000), 0x109640, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x12, r0, 0xe7cf000) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000267000/0x400000)=nil) fadvise64(r0, 0x2, 0x4, 0x2) mlock(&(0x7f0000000000/0x800000)=nil, 0x800000) executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000080)={'syzkaller0\x00', 0x1}) ioctl$TUNSETLINK(r0, 0x400454cd, 0x18) r1 = socket$inet(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f00000000c0)={'syzkaller0\x00', 0x1}) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x46) mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000140), 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0, 0x8c) r1 = openat$incfs(r0, &(0x7f00000001c0)='.pending_reads\x00', 0x0, 0x130) ioctl$TIOCL_GETKMSGREDIRECT(r1, 0x40306727, &(0x7f0000000200)) executing program 1: socket(0x10, 0x3, 0x0) socket$nl_generic(0x10, 0x3, 0x10) openat$ptp0(0xffffffffffffff9c, &(0x7f0000000140), 0x2401, 0x0) mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1) clock_adjtime(0xffffffd3, &(0x7f0000000000)={0x10000, 0x6, 0xc, 0x1000000, 0x7, 0xe, 0x5, 0x1, 0x8000009654, 0x1, 0x7fffffff, 0x0, 0x10, 0xb, 0xffff, 0x200cc0, 0x1, 0x5, 0x0, 0xfffffffffffffffc, 0x0, 0x809, 0x0, 0x5, 0x6, 0x9}) executing program 1: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f0000001600)={0x1, 0x6}, 0x4) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x0) setsockopt$MRT_ASSERT(0xffffffffffffffff, 0x0, 0xcf, 0x0, 0x0) setsockopt$packet_fanout_data(r0, 0x107, 0x16, &(0x7f0000000100)={0x0, 0x0}, 0x10) executing program 1: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000207d1e5a2d00000000000109022400010000000009040000010300000009210000000122080009058103"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="002208000000a20100c3"], 0x0}, 0x0) r1 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0) ioctl$HIDIOCGFIELDINFO(r1, 0xc038480a, &(0x7f0000000640)={0x1, 0x1, 0x0, 0x9, 0x9, 0x7, 0x2, 0x8, 0x0, 0x3, 0x21f, 0x1, 0x9, 0x2}) executing program 3: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x22700, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x2) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x45, 0x0, 0x0) ioctl$KVM_SET_MSRS(r2, 0x4008ae89, &(0x7f00000001c0)={0x1, 0x0, [{0x48b, 0x0, 0x2000000000045f}]}) executing program 3: r0 = socket$packet(0x11, 0x2, 0x300) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) write$uinput_user_dev(r1, &(0x7f0000000240)={'syz0\x00', {0x508, 0x7, 0x7, 0x1}, 0x4a, [0x5f11bec3, 0x3, 0x5, 0x40, 0x0, 0x3, 0x0, 0x7d, 0x80013, 0x5, 0x0, 0x6, 0x1, 0x0, 0x4000000, 0x2, 0x1a4, 0xfffff605, 0x3, 0x0, 0x46e9, 0x7ff, 0xe2b, 0x7, 0x681c1eb5, 0x11e, 0x0, 0x2, 0x0, 0xe9, 0x0, 0xffff, 0x9, 0x4, 0x0, 0x3, 0x0, 0x1, 0x5de82a4e, 0x0, 0x0, 0x20000, 0x4, 0xfffffffe, 0x1, 0x0, 0x8000, 0x7, 0x0, 0xe0, 0x3fd, 0x5, 0xfffffff7, 0x0, 0xd11, 0x0, 0x1ab9, 0x0, 0x2, 0x0, 0xfffffffb, 0x1c15d73a, 0x2], [0x0, 0x0, 0x0, 0x0, 0x4, 0x1, 0x8, 0xfffffffb, 0x0, 0x0, 0x0, 0x0, 0x1, 0x4, 0x0, 0x0, 0x0, 0x3, 0x0, 0x5, 0x0, 0x61c5fb46, 0x10000, 0x0, 0x4, 0x10001, 0x75, 0x0, 0x4, 0x0, 0xd, 0x80000000, 0x0, 0x61c2, 0x9, 0x0, 0x9, 0x2, 0xff, 0x2, 0x10001, 0x3, 0x0, 0x7, 0xfffffffb, 0xffffff00, 0x0, 0x10, 0x0, 0x0, 0x0, 0x1, 0xffff, 0x9, 0xfffffffc, 0x0, 0x0, 0x0, 0xfffffff9, 0x2, 0x7fffffff, 0x6, 0x9], [0x0, 0xc50, 0x6, 0x9f5, 0x0, 0xa02, 0x1c75, 0xf51, 0x6, 0x40, 0x0, 0x21, 0x20000, 0x0, 0x6, 0x0, 0x0, 0x0, 0x205, 0x5, 0xfffffffd, 0xc, 0x0, 0x200, 0xcc0, 0x9, 0x6, 0x6, 0x0, 0x0, 0xffffff7f, 0xe, 0x921, 0x2f, 0x0, 0x0, 0x0, 0x0, 0x15960318, 0x0, 0x0, 0x0, 0xfffffffc, 0x0, 0x5, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0xfffffffe, 0x4, 0x0, 0x6574, 0x7, 0x0, 0xcd55, 0xfb], [0x0, 0x6, 0x0, 0x2, 0x1, 0xffffffff, 0x5, 0x200, 0xffffffff, 0xd63, 0x6, 0x0, 0x0, 0x0, 0xfffffffa, 0xfa3, 0x3ff, 0x8, 0x4, 0x0, 0xffffffff, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x194e, 0x0, 0xe793, 0x4ad, 0x0, 0x0, 0x80000001, 0x3, 0x0, 0x0, 0x101, 0x0, 0x1, 0x0, 0x40, 0x8000010, 0x0, 0x5, 0x0, 0x0, 0x7fff, 0x6, 0x800, 0x5, 0xd, 0x0, 0x40000000, 0x0, 0x4, 0x45d, 0x4, 0x0, 0xfff, 0xb2, 0xa, 0xb]}, 0x45c) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x9, 0x12, r1, 0x0) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000180)=@req3={0x10000, 0x100000001, 0x10000, 0x1}, 0x1c) executing program 3: r0 = openat$ublk_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = syz_ublk_setup_io_uring(0x20, &(0x7f0000000040)={0x0, 0x0, 0x100}, &(0x7f00000000c0)=0x0, &(0x7f0000000100)=0x0, &(0x7f00000004c0)=0x0) r5 = syz_ublk_add_dev(r1, r2, r3, r4, &(0x7f0000000200)={0x2e, 0x0, 0x0, r0, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f0000000500)=@new_dev={0x1, 0x104, 0x0, 0x0, 0x1000, 0xffffffff, 0x0, 0x0, 0xc4ddfbc9bba2bdbf}}}, 0x0) syz_open_dev$ublk_chdev(&(0x7f0000002000), r5, 0x2) syz_open_dev$ublk_chdev(&(0x7f0000000400), r5, 0x2040) executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 0x0) executing program 2: r0 = socket$inet6(0xa, 0x3, 0xff) setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x39, &(0x7f0000002e40)=ANY=[@ANYBLOB="00020201"], 0x18) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @private0}, 0x1c) r1 = dup(r0) write$FUSE_ENTRY(r1, &(0x7f0000000000)={0x90, 0xfffffffffffffffe, 0x0, {0x2, 0x220, 0x10000, 0x5, 0x8, 0x3000000, {0x0, 0x200000000000001, 0x6, 0x44f2da4d, 0x2, 0x3, 0xff, 0x100, 0x8, 0x1000, 0x8488, 0x0, 0x0, 0x1, 0x4000d}}}, 0x90) executing program 2: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 0x0) program crashed: WARNING in shmem_rmdir bisect: bisecting 29 programs bisect: split chunks (needed=false): <29> bisect: split chunk #0 of len 29 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=34s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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] detailed listing: executing program 4: r0 = syz_usb_connect$hid(0x5, 0x36, &(0x7f00000001c0)=ANY=[@ANYBLOB="12010000000000404c05f20dafd60000000109022400010000000009040000010300010009210101000122050009058103"], 0x0) sendmsg$inet(0xffffffffffffffff, &(0x7f0000000640)={0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000180)="96bc1480", 0x4}], 0x1}, 0x24048804) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f00000003c0)={0x2c, &(0x7f0000000000)=ANY=[@ANYBLOB="000657"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000e40)={0x84, &(0x7f0000000180)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_int(r0, 0x107, 0xa, &(0x7f0000000080)=0x2, 0x4) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000100)={'batadv_slave_0\x00', 0x0}) bind$packet(r0, &(0x7f0000000140)={0x11, 0x0, r1, 0x1, 0xf7, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_rx_ring(r0, 0x107, 0x5, &(0x7f0000000040)=@req3={0x1000, 0x3a, 0x1000, 0x3a, 0x0, 0x0, 0xffffffff}, 0x1c) executing program 2: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x8242, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_IRQCHIP(r1, 0x4020aeb2, &(0x7f0000012300)={0x0, 0x12c, @ioapic={0x70000, 0xc8f, 0xfffff5ab, 0x7fffffff, 0x0, [{0x8, 0x81, 0xfd, '\x00', 0x7}, {0x0, 0x3, 0x1, '\x00', 0x6}, {0x7, 0x3, 0xe, '\x00', 0x3b}, {0x4a, 0xe, 0xd6, '\x00', 0x86}, {0xd, 0x2, 0xa, '\x00', 0x2}, {0xd, 0x1, 0xe9, '\x00', 0x3}, {0xff, 0xa, 0x7, '\x00', 0x6}, {0x8, 0xd, 0x2a, '\x00', 0x8}, {0x4, 0x0, 0xa, '\x00', 0x2}, {0x8, 0xd6, 0x3, '\x00', 0x8}, {0x9e, 0x6, 0x3}, {0x2, 0x9, 0x1, '\x00', 0x6f}, {0x45, 0x51, 0x3}, {0x10, 0xfc, 0x0, '\x00', 0x1}, {0x8, 0x2, 0x9a, '\x00', 0x4b}, {0x5, 0x1b, 0xfe, '\x00', 0x3}, {0x2, 0xa, 0xd6, '\x00', 0x8}, {0xa, 0x0, 0xca, '\x00', 0x7}, {0x0, 0x7, 0x4, '\x00', 0x1a}, {0x3, 0x8, 0x81, '\x00', 0xda}, {0x3, 0x7, 0x5, '\x00', 0x6}, {0x9, 0x3, 0x1, '\x00', 0x2}, {0x87, 0x21, 0x7, '\x00', 0x7}, {0x1, 0x9, 0x0, '\x00', 0x46}]}}) ioctl$KVM_RUN(r2, 0xae80, 0x0) executing program 2: r0 = openat$rnullb(0xffffffffffffff9c, &(0x7f0000000000), 0x109640, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2000003, 0x12, r0, 0x969b5000) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000000000/0x400000)=nil) fadvise64(r0, 0x5, 0x4, 0x2) mlock(&(0x7f0000000000/0x800000)=nil, 0x800000) executing program 2: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000001c0), 0x1123102, 0x0) pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RGETLOCK(r2, &(0x7f0000000040)=ANY=[], 0xffffff6a) splice(r1, 0x0, r0, 0x0, 0x40010003, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x1b) executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f0000000000)=0x100000001, 0x4) connect$inet6(r0, &(0x7f0000000480)={0xa, 0x0, 0x0, @loopback}, 0x1c) setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000100), 0x4) setsockopt$inet6_tcp_TLS_TX(r0, 0x11a, 0x1, 0x0, 0x0) executing program 3: r0 = openat$rnullb(0xffffffffffffff9c, &(0x7f0000000000), 0x109640, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x12, r0, 0xe7cf000) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000267000/0x400000)=nil) fadvise64(r0, 0x2, 0x4, 0x2) mlock(&(0x7f0000000000/0x800000)=nil, 0x800000) executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000080)={'syzkaller0\x00', 0x1}) ioctl$TUNSETLINK(r0, 0x400454cd, 0x18) r1 = socket$inet(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f00000000c0)={'syzkaller0\x00', 0x1}) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x46) mount$incfs(&(0x7f0000000080)='./file0\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000140), 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x0, 0x8c) r1 = openat$incfs(r0, &(0x7f00000001c0)='.pending_reads\x00', 0x0, 0x130) ioctl$TIOCL_GETKMSGREDIRECT(r1, 0x40306727, &(0x7f0000000200)) executing program 1: socket(0x10, 0x3, 0x0) socket$nl_generic(0x10, 0x3, 0x10) openat$ptp0(0xffffffffffffff9c, &(0x7f0000000140), 0x2401, 0x0) mprotect(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x1) clock_adjtime(0xffffffd3, &(0x7f0000000000)={0x10000, 0x6, 0xc, 0x1000000, 0x7, 0xe, 0x5, 0x1, 0x8000009654, 0x1, 0x7fffffff, 0x0, 0x10, 0xb, 0xffff, 0x200cc0, 0x1, 0x5, 0x0, 0xfffffffffffffffc, 0x0, 0x809, 0x0, 0x5, 0x6, 0x9}) executing program 1: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f0000001600)={0x1, 0x6}, 0x4) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x0) setsockopt$MRT_ASSERT(0xffffffffffffffff, 0x0, 0xcf, 0x0, 0x0) setsockopt$packet_fanout_data(r0, 0x107, 0x16, &(0x7f0000000100)={0x0, 0x0}, 0x10) executing program 1: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000207d1e5a2d00000000000109022400010000000009040000010300000009210000000122080009058103"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="002208000000a20100c3"], 0x0}, 0x0) r1 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0) ioctl$HIDIOCGFIELDINFO(r1, 0xc038480a, &(0x7f0000000640)={0x1, 0x1, 0x0, 0x9, 0x9, 0x7, 0x2, 0x8, 0x0, 0x3, 0x21f, 0x1, 0x9, 0x2}) executing program 3: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x22700, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x2) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x45, 0x0, 0x0) ioctl$KVM_SET_MSRS(r2, 0x4008ae89, &(0x7f00000001c0)={0x1, 0x0, [{0x48b, 0x0, 0x2000000000045f}]}) executing program 3: r0 = socket$packet(0x11, 0x2, 0x300) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) write$uinput_user_dev(r1, &(0x7f0000000240)={'syz0\x00', {0x508, 0x7, 0x7, 0x1}, 0x4a, [0x5f11bec3, 0x3, 0x5, 0x40, 0x0, 0x3, 0x0, 0x7d, 0x80013, 0x5, 0x0, 0x6, 0x1, 0x0, 0x4000000, 0x2, 0x1a4, 0xfffff605, 0x3, 0x0, 0x46e9, 0x7ff, 0xe2b, 0x7, 0x681c1eb5, 0x11e, 0x0, 0x2, 0x0, 0xe9, 0x0, 0xffff, 0x9, 0x4, 0x0, 0x3, 0x0, 0x1, 0x5de82a4e, 0x0, 0x0, 0x20000, 0x4, 0xfffffffe, 0x1, 0x0, 0x8000, 0x7, 0x0, 0xe0, 0x3fd, 0x5, 0xfffffff7, 0x0, 0xd11, 0x0, 0x1ab9, 0x0, 0x2, 0x0, 0xfffffffb, 0x1c15d73a, 0x2], [0x0, 0x0, 0x0, 0x0, 0x4, 0x1, 0x8, 0xfffffffb, 0x0, 0x0, 0x0, 0x0, 0x1, 0x4, 0x0, 0x0, 0x0, 0x3, 0x0, 0x5, 0x0, 0x61c5fb46, 0x10000, 0x0, 0x4, 0x10001, 0x75, 0x0, 0x4, 0x0, 0xd, 0x80000000, 0x0, 0x61c2, 0x9, 0x0, 0x9, 0x2, 0xff, 0x2, 0x10001, 0x3, 0x0, 0x7, 0xfffffffb, 0xffffff00, 0x0, 0x10, 0x0, 0x0, 0x0, 0x1, 0xffff, 0x9, 0xfffffffc, 0x0, 0x0, 0x0, 0xfffffff9, 0x2, 0x7fffffff, 0x6, 0x9], [0x0, 0xc50, 0x6, 0x9f5, 0x0, 0xa02, 0x1c75, 0xf51, 0x6, 0x40, 0x0, 0x21, 0x20000, 0x0, 0x6, 0x0, 0x0, 0x0, 0x205, 0x5, 0xfffffffd, 0xc, 0x0, 0x200, 0xcc0, 0x9, 0x6, 0x6, 0x0, 0x0, 0xffffff7f, 0xe, 0x921, 0x2f, 0x0, 0x0, 0x0, 0x0, 0x15960318, 0x0, 0x0, 0x0, 0xfffffffc, 0x0, 0x5, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0xfffffffe, 0x4, 0x0, 0x6574, 0x7, 0x0, 0xcd55, 0xfb], [0x0, 0x6, 0x0, 0x2, 0x1, 0xffffffff, 0x5, 0x200, 0xffffffff, 0xd63, 0x6, 0x0, 0x0, 0x0, 0xfffffffa, 0xfa3, 0x3ff, 0x8, 0x4, 0x0, 0xffffffff, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x194e, 0x0, 0xe793, 0x4ad, 0x0, 0x0, 0x80000001, 0x3, 0x0, 0x0, 0x101, 0x0, 0x1, 0x0, 0x40, 0x8000010, 0x0, 0x5, 0x0, 0x0, 0x7fff, 0x6, 0x800, 0x5, 0xd, 0x0, 0x40000000, 0x0, 0x4, 0x45d, 0x4, 0x0, 0xfff, 0xb2, 0xa, 0xb]}, 0x45c) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x9, 0x12, r1, 0x0) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000180)=@req3={0x10000, 0x100000001, 0x10000, 0x1}, 0x1c) executing program 3: r0 = openat$ublk_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = syz_ublk_setup_io_uring(0x20, &(0x7f0000000040)={0x0, 0x0, 0x100}, &(0x7f00000000c0)=0x0, &(0x7f0000000100)=0x0, &(0x7f00000004c0)=0x0) r5 = syz_ublk_add_dev(r1, r2, r3, r4, &(0x7f0000000200)={0x2e, 0x0, 0x0, r0, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f0000000500)=@new_dev={0x1, 0x104, 0x0, 0x0, 0x1000, 0xffffffff, 0x0, 0x0, 0xc4ddfbc9bba2bdbf}}}, 0x0) syz_open_dev$ublk_chdev(&(0x7f0000002000), r5, 0x2) syz_open_dev$ublk_chdev(&(0x7f0000000400), r5, 0x2040) executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 0x0) executing program 2: r0 = socket$inet6(0xa, 0x3, 0xff) setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x39, &(0x7f0000002e40)=ANY=[@ANYBLOB="00020201"], 0x18) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @private0}, 0x1c) r1 = dup(r0) write$FUSE_ENTRY(r1, &(0x7f0000000000)={0x90, 0xfffffffffffffffe, 0x0, {0x2, 0x220, 0x10000, 0x5, 0x8, 0x3000000, {0x0, 0x200000000000001, 0x6, 0x44f2da4d, 0x2, 0x3, 0xff, 0x100, 0x8, 0x1000, 0x8488, 0x0, 0x0, 0x1, 0x4000d}}}, 0x90) executing program 2: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 0x0) program crashed: WARNING in shmem_rmdir 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: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f0000001600)={0x1, 0x6}, 0x4) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x0) setsockopt$MRT_ASSERT(0xffffffffffffffff, 0x0, 0xcf, 0x0, 0x0) setsockopt$packet_fanout_data(r0, 0x107, 0x16, &(0x7f0000000100)={0x0, 0x0}, 0x10) executing program 1: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000207d1e5a2d00000000000109022400010000000009040000010300000009210000000122080009058103"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f0000000100)={0x24, 0x0, 0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="002208000000a20100c3"], 0x0}, 0x0) r1 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0) ioctl$HIDIOCGFIELDINFO(r1, 0xc038480a, &(0x7f0000000640)={0x1, 0x1, 0x0, 0x9, 0x9, 0x7, 0x2, 0x8, 0x0, 0x3, 0x21f, 0x1, 0x9, 0x2}) executing program 3: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x22700, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x2) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000fe8000/0x18000)=nil, &(0x7f00000000c0)=[@text64={0x40, 0x0}], 0x1, 0x45, 0x0, 0x0) ioctl$KVM_SET_MSRS(r2, 0x4008ae89, &(0x7f00000001c0)={0x1, 0x0, [{0x48b, 0x0, 0x2000000000045f}]}) executing program 3: r0 = socket$packet(0x11, 0x2, 0x300) r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) write$uinput_user_dev(r1, &(0x7f0000000240)={'syz0\x00', {0x508, 0x7, 0x7, 0x1}, 0x4a, [0x5f11bec3, 0x3, 0x5, 0x40, 0x0, 0x3, 0x0, 0x7d, 0x80013, 0x5, 0x0, 0x6, 0x1, 0x0, 0x4000000, 0x2, 0x1a4, 0xfffff605, 0x3, 0x0, 0x46e9, 0x7ff, 0xe2b, 0x7, 0x681c1eb5, 0x11e, 0x0, 0x2, 0x0, 0xe9, 0x0, 0xffff, 0x9, 0x4, 0x0, 0x3, 0x0, 0x1, 0x5de82a4e, 0x0, 0x0, 0x20000, 0x4, 0xfffffffe, 0x1, 0x0, 0x8000, 0x7, 0x0, 0xe0, 0x3fd, 0x5, 0xfffffff7, 0x0, 0xd11, 0x0, 0x1ab9, 0x0, 0x2, 0x0, 0xfffffffb, 0x1c15d73a, 0x2], [0x0, 0x0, 0x0, 0x0, 0x4, 0x1, 0x8, 0xfffffffb, 0x0, 0x0, 0x0, 0x0, 0x1, 0x4, 0x0, 0x0, 0x0, 0x3, 0x0, 0x5, 0x0, 0x61c5fb46, 0x10000, 0x0, 0x4, 0x10001, 0x75, 0x0, 0x4, 0x0, 0xd, 0x80000000, 0x0, 0x61c2, 0x9, 0x0, 0x9, 0x2, 0xff, 0x2, 0x10001, 0x3, 0x0, 0x7, 0xfffffffb, 0xffffff00, 0x0, 0x10, 0x0, 0x0, 0x0, 0x1, 0xffff, 0x9, 0xfffffffc, 0x0, 0x0, 0x0, 0xfffffff9, 0x2, 0x7fffffff, 0x6, 0x9], [0x0, 0xc50, 0x6, 0x9f5, 0x0, 0xa02, 0x1c75, 0xf51, 0x6, 0x40, 0x0, 0x21, 0x20000, 0x0, 0x6, 0x0, 0x0, 0x0, 0x205, 0x5, 0xfffffffd, 0xc, 0x0, 0x200, 0xcc0, 0x9, 0x6, 0x6, 0x0, 0x0, 0xffffff7f, 0xe, 0x921, 0x2f, 0x0, 0x0, 0x0, 0x0, 0x15960318, 0x0, 0x0, 0x0, 0xfffffffc, 0x0, 0x5, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0xfffffffe, 0x4, 0x0, 0x6574, 0x7, 0x0, 0xcd55, 0xfb], [0x0, 0x6, 0x0, 0x2, 0x1, 0xffffffff, 0x5, 0x200, 0xffffffff, 0xd63, 0x6, 0x0, 0x0, 0x0, 0xfffffffa, 0xfa3, 0x3ff, 0x8, 0x4, 0x0, 0xffffffff, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x194e, 0x0, 0xe793, 0x4ad, 0x0, 0x0, 0x80000001, 0x3, 0x0, 0x0, 0x101, 0x0, 0x1, 0x0, 0x40, 0x8000010, 0x0, 0x5, 0x0, 0x0, 0x7fff, 0x6, 0x800, 0x5, 0xd, 0x0, 0x40000000, 0x0, 0x4, 0x45d, 0x4, 0x0, 0xfff, 0xb2, 0xa, 0xb]}, 0x45c) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x9, 0x12, r1, 0x0) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000180)=@req3={0x10000, 0x100000001, 0x10000, 0x1}, 0x1c) executing program 3: r0 = openat$ublk_ctrl(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r1 = syz_ublk_setup_io_uring(0x20, &(0x7f0000000040)={0x0, 0x0, 0x100}, &(0x7f00000000c0)=0x0, &(0x7f0000000100)=0x0, &(0x7f00000004c0)=0x0) r5 = syz_ublk_add_dev(r1, r2, r3, r4, &(0x7f0000000200)={0x2e, 0x0, 0x0, r0, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f0000000500)=@new_dev={0x1, 0x104, 0x0, 0x0, 0x1000, 0xffffffff, 0x0, 0x0, 0xc4ddfbc9bba2bdbf}}}, 0x0) syz_open_dev$ublk_chdev(&(0x7f0000002000), r5, 0x2) syz_open_dev$ublk_chdev(&(0x7f0000000400), r5, 0x2040) executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 0x0) executing program 2: r0 = socket$inet6(0xa, 0x3, 0xff) setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x39, &(0x7f0000002e40)=ANY=[@ANYBLOB="00020201"], 0x18) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @private0}, 0x1c) r1 = dup(r0) write$FUSE_ENTRY(r1, &(0x7f0000000000)={0x90, 0xfffffffffffffffe, 0x0, {0x2, 0x220, 0x10000, 0x5, 0x8, 0x3000000, {0x0, 0x200000000000001, 0x6, 0x44f2da4d, 0x2, 0x3, 0xff, 0x100, 0x8, 0x1000, 0x8488, 0x0, 0x0, 0x1, 0x4000d}}}, 0x90) executing program 2: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 0x0) program crashed: WARNING in shmem_rmdir bisect: the chunk can be dropped bisect: testing without sub-chunk 3/3 bisect: split chunks (needed=true): <9> bisect: split chunk #0 of len 9 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=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] detailed listing: executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 0x0) executing program 2: r0 = socket$inet6(0xa, 0x3, 0xff) setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x39, &(0x7f0000002e40)=ANY=[@ANYBLOB="00020201"], 0x18) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @private0}, 0x1c) r1 = dup(r0) write$FUSE_ENTRY(r1, &(0x7f0000000000)={0x90, 0xfffffffffffffffe, 0x0, {0x2, 0x220, 0x10000, 0x5, 0x8, 0x3000000, {0x0, 0x200000000000001, 0x6, 0x44f2da4d, 0x2, 0x3, 0xff, 0x100, 0x8, 0x1000, 0x8488, 0x0, 0x0, 0x1, 0x4000d}}}, 0x90) executing program 2: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 0x0) program crashed: WARNING in shmem_rmdir bisect: the chunk can be dropped bisect: testing without sub-chunk 2/2 bisect: no need to test this chunk, it's definitely needed bisect: split chunks (needed=true): <4> bisect: split chunk #0 of len 4 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5] detailed listing: executing program 2: r0 = socket$inet6(0xa, 0x3, 0xff) setsockopt$inet6_IPV6_RTHDR(r0, 0x29, 0x39, &(0x7f0000002e40)=ANY=[@ANYBLOB="00020201"], 0x18) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @private0}, 0x1c) r1 = dup(r0) write$FUSE_ENTRY(r1, &(0x7f0000000000)={0x90, 0xfffffffffffffffe, 0x0, {0x2, 0x220, 0x10000, 0x5, 0x8, 0x3000000, {0x0, 0x200000000000001, 0x6, 0x44f2da4d, 0x2, 0x3, 0xff, 0x100, 0x8, 0x1000, 0x8488, 0x0, 0x0, 0x1, 0x4000d}}}, 0x90) executing program 2: syz_usb_connect(0x0, 0x2e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000404406478000010102030109021c0001010080fa0904038000010100000a240100010a00020102"], 0x0) socket(0x10, 0x3, 0x0) read(0xffffffffffffffff, 0x0, 0x0) clock_gettime(0x0, 0x0) pselect6(0x0, 0x0, 0x0, 0x0, &(0x7f0000000180), 0x0) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [5, 5] detailed listing: executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 0x0) 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}}): mkdirat-mkdirat-mount$overlay-chdir-openat$cgroup_ro detailed listing: executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x181) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./bus\x00', 0x140) mount$overlay(0x0, &(0x7f0000000100)='./bus\x00', &(0x7f0000000440), 0x8, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './cgroup'}}, {@upperdir={'upperdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}, {@userxattr}]}) chdir(&(0x7f00000001c0)='./bus\x00') openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cpu.stat\x00', 0x275a, 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}}): creat-mkdir-mount$incfs-chdir-unlink detailed listing: executing program 3: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') program crashed: WARNING in shmem_rmdir bisect: the chunk can be dropped 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(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=45s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs-chdir-unlink detailed listing: executing program 0: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') unlink(&(0x7f0000005cc0)='./file0\x00') program crashed: WARNING in shmem_rmdir bisect: concatenation succeeded found reproducer with 5 syscalls minimizing guilty program testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs-chdir detailed listing: executing program 0: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) chdir(&(0x7f00000003c0)='./bus\x00') program crashed: WARNING in shmem_rmdir testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir-mount$incfs detailed listing: executing program 0: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mkdir detailed listing: executing program 0: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) program did not crash testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): creat-mount$incfs detailed listing: executing program 0: creat(&(0x7f00000000c0)='./file0\x00', 0xdafbe5d6891b6e4) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) program did not crash testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) program crashed: WARNING in shmem_rmdir testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(0x0, 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) program did not crash testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000000), 0xc002, 0x0) program did not crash testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', 0x0, &(0x7f0000000000), 0xc002, 0x0) program did not crash testing program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs detailed listing: executing program 0: mkdir(&(0x7f00000000c0)='./bus\x00', 0x13e) mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0xc002, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=44.042241344s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir simplifying C reproducer testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program did not crash testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program did not crash testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {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$incfs program did not crash testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {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$incfs program crashed: WARNING in shmem_rmdir testing compiled C program (duration=44.042241344s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdir-mount$incfs program crashed: WARNING in shmem_rmdir testing program (duration=44.042241344s, {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=44.042241344s, {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=44.042241344s, {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 40m29.391589958s repro crashed as (corrupted=false): veth0_vlan: entered promiscuous mode veth1_macvtap: entered promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 377 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340 Modules linked in: CPU: 0 UID: 0 PID: 377 Comm: syz-executor Not tainted syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340 Code: 04 00 00 be 08 00 00 00 e8 7f 12 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 48 c0 b4 03 cc e8 22 33 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:ffffc90003b4fc88 EFLAGS: 00010293 RAX: ffffffff81f23e9e RBX: ffff888114c8ed10 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000769f80 R12: dffffc0000000000 R13: 1ffff11022991dab R14: ffff888114c8ed58 R15: 0000000000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555e4e3958 CR3: 0000000129a22000 CR4: 00000000003526b0 Call Trace: shmem_rmdir+0x5f/0x90 mm/shmem.c:3826 vfs_rmdir+0x3db/0x560 fs/namei.c:4348 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 ---[ 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/377 CPU: 1 UID: 0 PID: 377 Comm: syz-executor Tainted: G W syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __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:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000168 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 8000000123ca5067 P4D 8000000123ca5067 PUD 0 Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 377 Comm: syz-executor Tainted: G B W syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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 0d 2a 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 09 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 1d RSP: 0018:ffffc90003b4fcc8 EFLAGS: 00010246 RAX: ffff88810cf8b900 RBX: 0000000000000000 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcd8 R08: ffffffff88bb7947 R09: 1ffffffff1176f28 R10: dffffc0000000000 R11: fffffbfff1176f29 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000129a22000 CR4: 00000000003526b0 Call Trace: 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:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 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 0d 2a 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 09 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 1d RSP: 0018:ffffc90003b4fcc8 EFLAGS: 00010246 RAX: ffff88810cf8b900 RBX: 0000000000000000 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcd8 R08: ffffffff88bb7947 R09: 1ffffffff1176f28 R10: dffffc0000000000 R11: fffffbfff1176f29 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000129a22000 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 0d 2a 95 ff call 0xff952a20 13: 48 8d bb 68 01 00 00 lea 0x168(%rbx),%rdi 1a: be 04 00 00 00 mov $0x4,%esi 1f: e8 3c 09 ee ff call 0xffee0960 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: 1d .byte 0x1d final repro crashed as (corrupted=false): veth0_vlan: entered promiscuous mode veth1_macvtap: entered promiscuous mode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 377 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340 Modules linked in: CPU: 0 UID: 0 PID: 377 Comm: syz-executor Not tainted syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340 Code: 04 00 00 be 08 00 00 00 e8 7f 12 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 48 c0 b4 03 cc e8 22 33 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:ffffc90003b4fc88 EFLAGS: 00010293 RAX: ffffffff81f23e9e RBX: ffff888114c8ed10 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcb0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff52000769f80 R12: dffffc0000000000 R13: 1ffff11022991dab R14: ffff888114c8ed58 R15: 0000000000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555e4e3958 CR3: 0000000129a22000 CR4: 00000000003526b0 Call Trace: shmem_rmdir+0x5f/0x90 mm/shmem.c:3826 vfs_rmdir+0x3db/0x560 fs/namei.c:4348 incfs_kill_sb+0x102/0x220 fs/incfs/vfs.c:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 ---[ 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/377 CPU: 1 UID: 0 PID: 377 Comm: syz-executor Tainted: G W syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __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:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000168 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 8000000123ca5067 P4D 8000000123ca5067 PUD 0 Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 377 Comm: syz-executor Tainted: G B W syzkaller #0 9a2c17613351c9eac8e18d74829f474689ac6bc1 Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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 0d 2a 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 09 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 1d RSP: 0018:ffffc90003b4fcc8 EFLAGS: 00010246 RAX: ffff88810cf8b900 RBX: 0000000000000000 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcd8 R08: ffffffff88bb7947 R09: 1ffffffff1176f28 R10: dffffc0000000000 R11: fffffbfff1176f29 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000129a22000 CR4: 00000000003526b0 Call Trace: 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:1968 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+0x1e8/0x260 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: 0033:0x7fc2c359f317 Code: a2 c7 05 dc 43 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:00007ffc918b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc2c359f317 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc918b3d30 RBP: 00007ffc918b3d30 R08: 00007ffc918b4d30 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc918b4dc0 R13: 00007fc2c3634474 R14: 0000000000006bd8 R15: 00007ffc918b4e00 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 0d 2a 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 09 ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 1d RSP: 0018:ffffc90003b4fcc8 EFLAGS: 00010246 RAX: ffff88810cf8b900 RBX: 0000000000000000 RCX: ffff88810cf8b900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4fcd8 R08: ffffffff88bb7947 R09: 1ffffffff1176f28 R10: dffffc0000000000 R11: fffffbfff1176f29 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 FS: 000055555e4c0500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000168 CR3: 0000000129a22000 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 0d 2a 95 ff call 0xff952a20 13: 48 8d bb 68 01 00 00 lea 0x168(%rbx),%rdi 1a: be 04 00 00 00 mov $0x4,%esi 1f: e8 3c 09 ee ff call 0xffee0960 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: 1d .byte 0x1d