Extracting prog: 57m35.833731255s Minimizing prog: 56m43.238067021s Simplifying prog options: 0s Extracting C: 2m43.032129749s Simplifying C: 19m32.65836113s extracting reproducer from 24 programs testing a last program of every proc single: executing 4 programs separately with timeout 6m0s testing program (duration=6m0s, {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}}): mprotect-socket$nl_sock_diag-getsockopt$netlink detailed listing: executing program 0: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program did not crash testing program (duration=6m0s, {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-syz_usb_control_io$lan78xx-syz_usb_control_io$cdc_ecm-syz_usb_control_io$printer detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100005938d74010973077339600000001090212000100001e000904"], 0x0) syz_usb_control_io$lan78xx(r0, 0x0, &(0x7f0000000780)={0x34, &(0x7f0000000e00)=ANY=[@ANYBLOB="200512"], 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) program did not crash testing program (duration=6m0s, {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$hid-syz_open_dev$hidraw-syz_usb_ep_write-close-unshare-close_range detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0901a10185020901150026ff00750895098102c0"], 0x0}, 0x0) r1 = syz_open_dev$hidraw(&(0x7f0000000200), 0x0, 0x0) syz_usb_ep_write(r0, 0x81, 0x0, 0x0) close(0x3) unshare(0x6a040200) close_range(r1, r1, 0x0) program did not crash testing program (duration=6m0s, {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 detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x1, 0x0, 0x0, 0x0, 0x8, 0x1294, 0x1320, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x20, "", [{{0x9, 0x4, 0x0, 0x0, 0x5, 0x3, 0x0, 0x1, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x26}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x0, 0xf, 0x4}}}}}]}}]}}, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000b40)={0x2c, &(0x7f0000000880)={0x40, 0x21, 0x26, {0x26, 0x31, "aa27f10161b71a9d938b5548f75799c3ab3473faadba68caa4d15bb44bff7374e8654f94"}}, 0x0, 0x0, 0x0, 0x0}, 0x0) program did not crash single: failed to extract reproducer bisect: bisecting 24 programs with base timeout 6m0s testing program (duration=6m6s, {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}}): [2, 12, 14, 9, 16, 8, 3, 8, 11, 5, 3, 7, 3, 9, 8, 3, 13, 4, 4, 3, 7, 8, 13, 3] detailed listing: executing program 2: r0 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000080), 0x1c0102, 0x0) write$vga_arbiter(r0, &(0x7f0000000180)=ANY=[@ANYBLOB='trylock i'], 0xc) executing program 2: socket$nl_generic(0x10, 0x3, 0x10) socket$inet(0x2, 0x2, 0x1) socket$nl_generic(0x10, 0x3, 0x10) socket$nl_netfilter(0x10, 0x3, 0xc) mmap$IORING_OFF_SQ_RING(0x0, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x3, 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, 0x0) write$binfmt_format(0xffffffffffffffff, 0x0, 0x0) syz_ublk_add_dev(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x2e, 0x0, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f00000001c0)=@new_dev={0x4, 0x3c9, 0x0, 0x0, 0x1000, 0xffffffff, 0x0, 0x0, 0x40}}}, &(0x7f0000000300)=0x0) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = dup(r1) syz_ublk_setup_queues(r2, r0, &(0x7f00000004c0)={0x0, 0xbd, 0x10, 0x1, 0x7f}, &(0x7f0000000a80)=[{0x0, 0x0, 0xffffffffffffffff, {0x0, 0xe708, 0x42, 0x1000002, 0x91}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x3b00, 0x2, 0x1, 0x3aa}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x93ea, 0x2000, 0x4003bfff, 0x2b9}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x5, 0x800, 0x1, 0x26d}}], 0x1, 0x0, 0x0) executing program 2: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000018105e04da07000000000001090224000100000000090400000903000000092100000001222200090581030800000000"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, 0x0, 0x0}, 0x0) syz_usb_ep_write(r0, 0x89, 0xc, &(0x7f00000000c0)="422d2d6cc67a9d54db424242") mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) vmsplice(0xffffffffffffffff, 0x0, 0x0, 0x1) r1 = socket$can_raw(0x1d, 0x3, 0x1) ioctl$ifreq_SIOCGIFINDEX_vcan(r1, 0x8933, &(0x7f0000000400)={'vcan0\x00', 0x0}) bind$can_raw(r1, &(0x7f00000001c0)={0x1d, r2}, 0x10) setsockopt$CAN_RAW_RECV_OWN_MSGS(r1, 0x65, 0x4, &(0x7f00000003c0)=0x1, 0x4) sendmsg$can_raw(r1, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000480)=@can={{0x2, 0x0, 0x0, 0x1}, 0x4, 0x1, 0x0, 0x0, "985300"}, 0x10}}, 0xd209f6d834823357) read(r1, &(0x7f0000002fc0)=""/52, 0x34) syz_usb_ep_write(r0, 0x81, 0x0, 0x0) syz_usb_ep_write(r0, 0x81, 0x0, 0x0) executing program 3: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000500), 0x80000, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x1000, &(0x7f0000546000/0x1000)=nil}) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000440)={[0xfffffffffffffffe, 0x100000000, 0x0, 0x7f, 0x100000, 0xbae2, 0x2004c9, 0x8000000, 0x0, 0x0, 0x7, 0x0, 0x5, 0x8, 0x2, 0xffffffffffffffff], 0x0, 0x10200}) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000380)={[0x8, 0xaec4, 0x6, 0x4004, 0x2, 0x7, 0xefffffffffffffff, 0x0, 0x0, 0x2000000, 0x20000, 0x1c, 0x0, 0x5, 0x1], 0xb000, 0x41981}) ioctl$KVM_RUN(r2, 0xae80, 0x0) executing program 3: close(0xffffffffffffffff) socket$netlink(0x10, 0x3, 0x0) openat$fuse(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) socket(0x80000000000000a, 0x2, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000680), 0x901800, 0x0) ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) userfaultfd(0x80001) socket(0x10, 0x3, 0x0) syz_usb_connect$hid(0x5, 0x36, &(0x7f0000000500)=ANY=[@ANYBLOB="1201000000000010ac054b02000000000001090224"], 0x0) mmap$IORING_OFF_SQ_RING(0x0, 0xc00000, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_ublk_add_dev(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x2e, 0x14, 0x0, 0xffffffffffffffff, 0xc0207504, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x0, '\x00', {0xffffffff, 0xffff, 0x40, &(0x7f0000000440)=@new_dev={0x4, 0x3c9, 0x0, 0x0, 0x1000, 0xffffffff, 0x0, 0x0, 0x40}}}, &(0x7f0000000300)=0x0) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = dup(r2) syz_ublk_setup_queues(r3, r1, &(0x7f0000000180)={0x0, 0xfffffffe, 0x0, 0xfffffffe, 0x2f6}, &(0x7f0000000800)=[{0x0, 0x0, 0xffffffffffffffff, {0x0, 0xe704, 0x40040, 0x1000002, 0x91}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x5c87, 0x20, 0x3, 0x3aa}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x1f70, 0x8000, 0x40000001, 0x337}}, {0x0, 0x0, 0xffffffffffffffff, {0x0, 0x4, 0x200, 0x1, 0xffffffff}}], 0x1, 0x0, 0x0) executing program 0: mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0) r0 = socket$can_raw(0x1d, 0x3, 0x1) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x41, &(0x7f0000000000)=0x264c, 0x4) ioctl$ifreq_SIOCGIFINDEX_vcan(r0, 0x8933, &(0x7f0000000400)={'vcan0\x00', 0x0}) bind$can_raw(r0, &(0x7f00000001c0)={0x1d, r1}, 0x10) setsockopt$CAN_RAW_RECV_OWN_MSGS(r0, 0x65, 0x4, &(0x7f00000003c0)=0x1, 0x4) sendmsg$can_raw(r0, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000480)=@can={{0x2, 0x0, 0x0, 0x1}, 0x4, 0x3, 0x0, 0x0, "985300"}, 0x10}}, 0xd209f6d814827b17) read(r0, &(0x7f0000002fc0)=""/52, 0x34) executing program 0: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) shutdown(r0, 0x0) recvmmsg(r0, &(0x7f0000004940)=[{{0x0, 0x49, 0x0}, 0x100002}, {{0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffec3}}], 0x2, 0x10100, 0x0) executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000080), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil}) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x2) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000140)=[@text32={0x20, &(0x7f0000000100)="660f388173ab0fc76fb4360fc9bb25cc00007666ba6bb74189000003c70fae6e2fc0c00f0f2367260f01ca660f38817700c4c2459d78ad", 0x37}], 0x1, 0x55, 0x0, 0x0) ioctl$KVM_SET_NESTED_STATE(r2, 0x4080aebf, &(0x7f0000005700)=@vmx={0x0, 0x0, 0x2080}) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, &(0x7f0000000000)={@local, 0x0, 0x0, 0xff, 0x2, 0x9}, 0x20) ioctl$KVM_RUN(r2, 0xae80, 0x0) executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x47f2, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040), 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xbecd6000) mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) chdir(&(0x7f0000000100)='./file0\x00') r1 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x0, 0x80) getdents64(r1, &(0x7f0000000f80)=""/4096, 0x1000) executing program 0: syz_usb_control_io$lan78xx(0xffffffffffffffff, &(0x7f0000000300)={0x14, &(0x7f00000001c0)=ANY=[@ANYBLOB=' \t'], 0x0}, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/sys/net/ipv6/fib_multipath_hash_policy\x00', 0x1, 0x0) write$tun(r0, &(0x7f00000001c0)=ANY=[], 0x1043) executing program 2: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) shutdown(r0, 0x0) sendto(r0, 0x0, 0x0, 0x4, 0x0, 0x0) executing program 2: r0 = getpid() r1 = socket$inet_tcp(0x2, 0x1, 0x0) r2 = epoll_create1(0x80000) r3 = fcntl$dupfd(r1, 0x0, r1) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r3, &(0x7f0000000000)) r4 = getpid() kcmp$KCMP_EPOLL_TFD(r4, r0, 0x7, r3, &(0x7f0000000100)={r2, r3}) executing program 2: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x1, 0x0, 0x0, 0x0, 0x8, 0x1294, 0x1320, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x20, "", [{{0x9, 0x4, 0x0, 0x0, 0x5, 0x3, 0x0, 0x1, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x26}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x0, 0xf, 0x4}}}}}]}}]}}, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000b40)={0x2c, &(0x7f0000000880)={0x40, 0x21, 0x26, {0x26, 0x31, "aa27f10161b71a9d938b5548f75799c3ab3473faadba68caa4d15bb44bff7374e8654f94"}}, 0x0, 0x0, 0x0, 0x0}, 0x0) executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2}) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r1) sendmsg$TIPC_CMD_ENABLE_BEARER(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r3) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r3, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0901a10185020901150026ff00750895098102c0"], 0x0}, 0x0) r1 = syz_open_dev$hidraw(&(0x7f0000000200), 0x0, 0x0) syz_usb_ep_write(r0, 0x81, 0x0, 0x0) close(0x3) unshare(0x6a040200) close_range(r1, r1, 0x0) executing program 3: r0 = socket$inet6(0xa, 0x3, 0x2) setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000040)={{{@in=@rand_addr=0x64010100, @in6=@rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', 0x4e23, 0x0, 0x3, 0xbd2, 0x2}, {0x0, 0x7, 0xdc82, 0x7, 0xfd, 0x7}, {0x40, 0x8000000000000, 0x2, 0x7}, 0x8, 0x0, 0x1, 0x0, 0x0, 0x1}, {{@in6=@empty, 0x0, 0x33}, 0x2, @in=@multicast2, 0x3507, 0x3, 0x0, 0x0, 0x0, 0x7c, 0xfffffffa}}, 0xe4) connect$inet6(r0, &(0x7f0000000300)={0xa, 0x4e23, 0xaf, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x1a}}, 0x80}, 0x1c) executing program 3: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) r1 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000140)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_WRITE_READ(r1, 0xc0306201, &(0x7f0000000080)={0x8, 0x0, &(0x7f0000000400)=[@increfs], 0x0, 0x0, 0x0}) r2 = dup3(r1, r0, 0x0) r3 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000040)='./binderfs/binder0\x00', 0x0, 0x0) mmap$binder(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x1, 0x11, r3, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r3, 0x4018620d, &(0x7f0000004a80)={0x73622a85, 0x100, 0x1}) mmap$IORING_OFF_SQ_RING(0x0, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) sendmsg$inet(0xffffffffffffffff, 0x0, 0x0) recvmsg$unix(0xffffffffffffffff, 0x0, 0x80) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000004c0)={0x8, 0x0, &(0x7f0000000000)=[@acquire], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000001c0)={0x4c, 0x0, &(0x7f0000000fc0)=[@transaction_sg={0x40486311, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000, 0x18, 0x0, &(0x7f0000000200)={0x30, 0x30, 0x30}}}], 0x0, 0x0, 0x0}) executing program 3: r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100005938d74010973077339600000001090212000100001e000904"], 0x0) syz_usb_control_io$lan78xx(r0, 0x0, &(0x7f0000000780)={0x34, &(0x7f0000000e00)=ANY=[@ANYBLOB="200512"], 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) executing program 1: mkdir(&(0x7f0000000000)='my_tracefs\x00', 0x1ff) mount(0x0, &(0x7f0000000200)='my_tracefs\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='my_tracefs/events/task/task_rename/filter\x00', 0x101, 0x0) writev(r0, &(0x7f00000000c0)=[{&(0x7f0000000140)='0', 0x1}, {&(0x7f0000000080)='|', 0x1}], 0x2) executing program 1: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r0, &(0x7f0000000000)={0x1f, 0xffff, 0x4}, 0x6) write$bt_hci(r0, &(0x7f0000000100)=ANY=[], 0x17) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 1: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) setpriority(0x0, 0x0, 0x2a14b58) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000124000/0x4000)=nil, 0x4000, 0x2000000) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = userfaultfd(0x80001) mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000009, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f00000002c0)={0xaa, 0x100}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) syz_clone3(&(0x7f00000023c0)={0x400000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58) executing program 1: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program crashed: INFO: task hung in jbd2_journal_commit_transaction bisect: bisecting 24 programs bisect: split chunks (needed=false): <24> bisect: split chunk #0 of len 24 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=6m4s, {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}}): [11, 5, 3, 7, 3, 9, 8, 3, 13, 4, 4, 3, 7, 8, 13, 3] detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000040)={0x0, 0x0, 0x47f2, 0x5}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040), 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xbecd6000) mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f0000000040)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) chdir(&(0x7f0000000100)='./file0\x00') r1 = openat$dir(0xffffffffffffff9c, &(0x7f0000000580)='.\x00', 0x0, 0x80) getdents64(r1, &(0x7f0000000f80)=""/4096, 0x1000) executing program 0: syz_usb_control_io$lan78xx(0xffffffffffffffff, &(0x7f0000000300)={0x14, &(0x7f00000001c0)=ANY=[@ANYBLOB=' \t'], 0x0}, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./proc\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./proc\x00', &(0x7f00000000c0)='proc\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./proc/sys/net/ipv6/fib_multipath_hash_policy\x00', 0x1, 0x0) write$tun(r0, &(0x7f00000001c0)=ANY=[], 0x1043) executing program 2: r0 = syz_init_net_socket$bt_rfcomm(0x1f, 0x1, 0x3) shutdown(r0, 0x0) sendto(r0, 0x0, 0x0, 0x4, 0x0, 0x0) executing program 2: r0 = getpid() r1 = socket$inet_tcp(0x2, 0x1, 0x0) r2 = epoll_create1(0x80000) r3 = fcntl$dupfd(r1, 0x0, r1) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r3, &(0x7f0000000000)) r4 = getpid() kcmp$KCMP_EPOLL_TFD(r4, r0, 0x7, r3, &(0x7f0000000100)={r2, r3}) executing program 2: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000040)={{0x12, 0x1, 0x1, 0x0, 0x0, 0x0, 0x8, 0x1294, 0x1320, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x20, "", [{{0x9, 0x4, 0x0, 0x0, 0x5, 0x3, 0x0, 0x1, 0x0, {0x9, 0x21, 0x0, 0x0, 0x1, {0x22, 0x26}}, {{{0x9, 0x5, 0x81, 0x3, 0x10, 0x0, 0xf, 0x4}}}}}]}}]}}, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000b40)={0x2c, &(0x7f0000000880)={0x40, 0x21, 0x26, {0x26, 0x31, "aa27f10161b71a9d938b5548f75799c3ab3473faadba68caa4d15bb44bff7374e8654f94"}}, 0x0, 0x0, 0x0, 0x0}, 0x0) executing program 3: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2}) r1 = socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r1) sendmsg$TIPC_CMD_ENABLE_BEARER(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r3 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r3) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r3, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0901a10185020901150026ff00750895098102c0"], 0x0}, 0x0) r1 = syz_open_dev$hidraw(&(0x7f0000000200), 0x0, 0x0) syz_usb_ep_write(r0, 0x81, 0x0, 0x0) close(0x3) unshare(0x6a040200) close_range(r1, r1, 0x0) executing program 3: r0 = socket$inet6(0xa, 0x3, 0x2) setsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000040)={{{@in=@rand_addr=0x64010100, @in6=@rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', 0x4e23, 0x0, 0x3, 0xbd2, 0x2}, {0x0, 0x7, 0xdc82, 0x7, 0xfd, 0x7}, {0x40, 0x8000000000000, 0x2, 0x7}, 0x8, 0x0, 0x1, 0x0, 0x0, 0x1}, {{@in6=@empty, 0x0, 0x33}, 0x2, @in=@multicast2, 0x3507, 0x3, 0x0, 0x0, 0x0, 0x7c, 0xfffffffa}}, 0xe4) connect$inet6(r0, &(0x7f0000000300)={0xa, 0x4e23, 0xaf, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x1a}}, 0x80}, 0x1c) executing program 3: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) r1 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000140)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_WRITE_READ(r1, 0xc0306201, &(0x7f0000000080)={0x8, 0x0, &(0x7f0000000400)=[@increfs], 0x0, 0x0, 0x0}) r2 = dup3(r1, r0, 0x0) r3 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000040)='./binderfs/binder0\x00', 0x0, 0x0) mmap$binder(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x1, 0x11, r3, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r3, 0x4018620d, &(0x7f0000004a80)={0x73622a85, 0x100, 0x1}) mmap$IORING_OFF_SQ_RING(0x0, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) sendmsg$inet(0xffffffffffffffff, 0x0, 0x0) recvmsg$unix(0xffffffffffffffff, 0x0, 0x80) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000004c0)={0x8, 0x0, &(0x7f0000000000)=[@acquire], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000001c0)={0x4c, 0x0, &(0x7f0000000fc0)=[@transaction_sg={0x40486311, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000, 0x18, 0x0, &(0x7f0000000200)={0x30, 0x30, 0x30}}}], 0x0, 0x0, 0x0}) executing program 3: r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100005938d74010973077339600000001090212000100001e000904"], 0x0) syz_usb_control_io$lan78xx(r0, 0x0, &(0x7f0000000780)={0x34, &(0x7f0000000e00)=ANY=[@ANYBLOB="200512"], 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) executing program 1: mkdir(&(0x7f0000000000)='my_tracefs\x00', 0x1ff) mount(0x0, &(0x7f0000000200)='my_tracefs\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='my_tracefs/events/task/task_rename/filter\x00', 0x101, 0x0) writev(r0, &(0x7f00000000c0)=[{&(0x7f0000000140)='0', 0x1}, {&(0x7f0000000080)='|', 0x1}], 0x2) executing program 1: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r0, &(0x7f0000000000)={0x1f, 0xffff, 0x4}, 0x6) write$bt_hci(r0, &(0x7f0000000100)=ANY=[], 0x17) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 1: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) setpriority(0x0, 0x0, 0x2a14b58) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000124000/0x4000)=nil, 0x4000, 0x2000000) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = userfaultfd(0x80001) mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000009, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f00000002c0)={0xaa, 0x100}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) syz_clone3(&(0x7f00000023c0)={0x400000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58) executing program 1: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program crashed: INFO: task hung in do_get_write_access bisect: the chunk can be dropped bisect: testing without sub-chunk 2/3 testing program (duration=6m2s, {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}}): [13, 4, 4, 3, 7, 8, 13, 3] detailed listing: executing program 3: r0 = openat$binderfs(0xffffffffffffff9c, &(0x7f00000000c0)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r0, 0x4018620d, &(0x7f0000000100)) r1 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000140)='./binderfs/binder0\x00', 0x0, 0x0) ioctl$BINDER_WRITE_READ(r1, 0xc0306201, &(0x7f0000000080)={0x8, 0x0, &(0x7f0000000400)=[@increfs], 0x0, 0x0, 0x0}) r2 = dup3(r1, r0, 0x0) r3 = openat$binderfs(0xffffffffffffff9c, &(0x7f0000000040)='./binderfs/binder0\x00', 0x0, 0x0) mmap$binder(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x1, 0x11, r3, 0x0) ioctl$BINDER_SET_CONTEXT_MGR_EXT(r3, 0x4018620d, &(0x7f0000004a80)={0x73622a85, 0x100, 0x1}) mmap$IORING_OFF_SQ_RING(0x0, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) sendmsg$inet(0xffffffffffffffff, 0x0, 0x0) recvmsg$unix(0xffffffffffffffff, 0x0, 0x80) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000004c0)={0x8, 0x0, &(0x7f0000000000)=[@acquire], 0x0, 0x0, 0x0}) ioctl$BINDER_WRITE_READ(r2, 0xc0306201, &(0x7f00000001c0)={0x4c, 0x0, &(0x7f0000000fc0)=[@transaction_sg={0x40486311, {0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2000, 0x18, 0x0, &(0x7f0000000200)={0x30, 0x30, 0x30}}}], 0x0, 0x0, 0x0}) executing program 3: r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100005938d74010973077339600000001090212000100001e000904"], 0x0) syz_usb_control_io$lan78xx(r0, 0x0, &(0x7f0000000780)={0x34, &(0x7f0000000e00)=ANY=[@ANYBLOB="200512"], 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) syz_usb_control_io$printer(r0, 0x0, 0x0) executing program 1: mkdir(&(0x7f0000000000)='my_tracefs\x00', 0x1ff) mount(0x0, &(0x7f0000000200)='my_tracefs\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='my_tracefs/events/task/task_rename/filter\x00', 0x101, 0x0) writev(r0, &(0x7f00000000c0)=[{&(0x7f0000000140)='0', 0x1}, {&(0x7f0000000080)='|', 0x1}], 0x2) executing program 1: r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r0, &(0x7f0000000000)={0x1f, 0xffff, 0x4}, 0x6) write$bt_hci(r0, &(0x7f0000000100)=ANY=[], 0x17) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 1: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) setpriority(0x0, 0x0, 0x2a14b58) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000124000/0x4000)=nil, 0x4000, 0x2000000) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = userfaultfd(0x80001) mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000009, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f00000002c0)={0xaa, 0x100}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) syz_clone3(&(0x7f00000023c0)={0x400000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58) executing program 1: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program crashed: INFO: task hung in jbd2_journal_commit_transaction bisect: the chunk can be dropped bisect: testing without sub-chunk 3/3 bisect: split chunks (needed=true): <8> bisect: split chunk #0 of len 8 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m1s, {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}}): [7, 8, 13, 3] detailed listing: executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) executing program 1: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) setpriority(0x0, 0x0, 0x2a14b58) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000124000/0x4000)=nil, 0x4000, 0x2000000) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = userfaultfd(0x80001) mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000009, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f00000002c0)={0xaa, 0x100}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) syz_clone3(&(0x7f00000023c0)={0x400000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58) executing program 1: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program crashed: INFO: task hung in jbd2_journal_commit_transaction 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=6m0s, {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}}): [13, 3] detailed listing: executing program 1: syz_init_net_socket$802154_raw(0x24, 0x3, 0x0) setpriority(0x0, 0x0, 0x2a14b58) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) mprotect(&(0x7f0000124000/0x4000)=nil, 0x4000, 0x2000000) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = userfaultfd(0x80001) mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x2000009, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f00000002c0)={0xaa, 0x100}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) syz_clone3(&(0x7f00000023c0)={0x400000, 0x0, 0x0, 0x0, {0x27}, 0x0, 0x0, 0x0, 0x0}, 0x58) executing program 1: mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x9) r0 = socket$nl_sock_diag(0x10, 0x3, 0x4) getsockopt$netlink(r0, 0x10e, 0xc, 0x0, &(0x7f0000001180)) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m0s, {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}}): [7, 8] detailed listing: executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) program crashed: INFO: task hung in jbd2_journal_commit_transaction bisect: the chunk can be dropped bisect: split chunks (needed=true): <2> bisect: split chunk #0 of len 2 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$tun-socket$nl_generic-syz_genetlink_get_family_id$tipc-sendmsg$TIPC_CMD_ENABLE_BEARER-openat$tun-close-socket$unix-ioctl$SIOCSIFHWADDR detailed listing: executing program 1: openat$tun(0xffffffffffffff9c, &(0x7f0000000280), 0x1, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc(&(0x7f0000000380), r0) sendmsg$TIPC_CMD_ENABLE_BEARER(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000680)=ANY=[@ANYBLOB='8\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="010000000d0000000000010000000000000001410000001c001700000000000000006574683a73797a6b616c6c657230"], 0x38}, 0x1, 0x0, 0x0, 0x44081}, 0x0) r2 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x42141, 0x0) close(r2) socket$unix(0x1, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r2, 0x8922, &(0x7f0000002280)={'syzkaller0\x00', @random="2b0100004ec6"}) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m0s, {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-mount-mkdirat-mount-pwrite64 detailed listing: executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction 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 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=9m0s, {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-mount-mkdirat-mount-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction bisect: concatenation succeeded found reproducer with 7 syscalls minimizing guilty program testing program (duration=5m23.127976662s, {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-mount-mkdirat-mount detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./proc\x00', 0x0, 0x0, 0x0) program did not crash testing program (duration=5m23.127976662s, {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-mount-mkdirat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in do_get_write_access testing program (duration=5m23.127976662s, {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-mount-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) mount(0x0, 0x0, 0x0, 0x10374a2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) pwrite64(0xffffffffffffffff, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=5m23.127976662s, {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}}): mount-openat-pwrite64 detailed listing: executing program 0: mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, 0x0, &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, 0x0, 0x0, 0x4) program did not crash testing program (duration=5m23.127976662s, {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-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0), 0x0, 0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine extracting C reproducer testing compiled C program (duration=5m23.127976662s, {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-pwrite64 program crashed: INFO: task hung in jbd2_journal_commit_transaction simplifying C reproducer testing compiled C program (duration=5m23.127976662s, {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}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m23.127976662s, {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}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction validation run: crashed=true testing program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in jbd2_journal_commit_transaction validation run: crashed=true testing program (duration=5m23.127976662s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x1, 0x4) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true reproducing took 2h24m47.597862045s repro crashed as (corrupted=false): INFO: task kworker/u8:1:13 blocked for more than 122 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:1 state:D stack:0 pid:13 tgid:13 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_mb_mark_context+0x393/0xee0 fs/ext4/mballoc.c:4107 ext4_mb_mark_diskspace_used+0x3aa/0x830 fs/ext4/mballoc.c:4223 ext4_mb_new_blocks+0x840/0x36c0 fs/ext4/mballoc.c:6318 ext4_ext_map_blocks+0x14d9/0x6080 fs/ext4/extents.c:4437 ext4_map_create_blocks fs/ext4/inode.c:520 [inline] ext4_map_blocks+0x873/0x17f0 fs/ext4/inode.c:706 mpage_map_one_extent fs/ext4/inode.c:2222 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2275 [inline] ext4_do_writepages+0x1c4a/0x39f0 fs/ext4/inode.c:2738 ext4_writepages+0x28c/0x550 fs/ext4/inode.c:2827 do_writepages+0x3d4/0x7f0 mm/page-writeback.c:2689 __writeback_single_inode+0xc8/0xba0 fs/fs-writeback.c:1674 writeback_sb_inodes+0x6a5/0xfb0 fs/fs-writeback.c:1970 __writeback_inodes_wb+0x129/0x280 fs/fs-writeback.c:2041 wb_writeback+0x3bb/0x850 fs/fs-writeback.c:2152 wb_check_old_data_flush fs/fs-writeback.c:2256 [inline] wb_do_writeback fs/fs-writeback.c:2309 [inline] wb_workfn+0xa03/0xef0 fs/fs-writeback.c:2337 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task jbd2/sda1-8:73 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:0 pid:73 tgid:73 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x5a/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:422 [inline] jbd2_journal_commit_transaction+0x2dba/0x5510 fs/jbd2/commit.c:814 kjournald2+0x386/0x6a0 fs/jbd2/journal.c:201 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.2.224:591 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.224 state:D stack:0 pid:591 tgid:591 ppid:378 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_reserve_inode_write+0x1f6/0x2e0 fs/ext4/inode.c:5892 __ext4_mark_inode_dirty+0xac/0x5e0 fs/ext4/inode.c:6066 ext4_dirty_inode+0xc9/0x110 fs/ext4/inode.c:6103 __mark_inode_dirty+0x251/0xc50 fs/fs-writeback.c:2515 generic_update_time fs/inode.c:2056 [inline] inode_update_time fs/inode.c:2069 [inline] __file_update_time fs/inode.c:2258 [inline] file_update_time+0x1d3/0x210 fs/inode.c:2288 ext4_page_mkwrite+0x2bf/0x1120 fs/ext4/inode.c:6221 do_page_mkwrite mm/memory.c:3263 [inline] do_shared_fault mm/memory.c:5537 [inline] do_fault mm/memory.c:5599 [inline] do_pte_missing+0x12c4/0x4440 mm/memory.c:4069 handle_pte_fault mm/memory.c:5940 [inline] __handle_mm_fault mm/memory.c:6083 [inline] handle_mm_fault+0x1189/0x1ba0 mm/memory.c:6251 do_user_addr_fault+0x951/0x1230 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1479 [inline] exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f68ac26ba23 RSP: 002b:00007fff7572a040 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b34524000 RSI: 0000000000040000 RDI: 00007f68ac5e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007fff7572a2d0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 55bf8b22bdada172f4c106b01602b1dfb2209583 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 dump_stack+0x19/0x20 lib/dump_stack.c:129 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline] watchdog+0xe45/0xf90 kernel/hung_task.c:423 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 55bf8b22bdada172f4c106b01602b1dfb2209583 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116 Code: cc cc cc cc cc cc cc b8 da f2 4e d7 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 19 43 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90 RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2 RAX: ffff8881f6f00000 RBX: ffff888103668000 RCX: ffffffff85a444fd RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000000244ac RBP: ffffc900001a7e00 R08: ffff8881f6f395eb R09: 1ffff1103ede72bd R10: dffffc0000000000 R11: ffffed103ede72be R12: 0000000000000000 R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff87ecc068 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f590d717540 CR3: 000000010cf10000 CR4: 00000000003526b0 Call Trace: arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline] default_idle+0x17/0x30 arch/x86/kernel/process.c:754 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791 default_idle_call+0x3e/0x80 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:193 [inline] do_idle+0x1df/0x570 kernel/sched/idle.c:346 cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445 start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314 common_startup_64+0x13b/0x157 final repro crashed as (corrupted=false): INFO: task kworker/u8:1:13 blocked for more than 122 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:1 state:D stack:0 pid:13 tgid:13 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_mb_mark_context+0x393/0xee0 fs/ext4/mballoc.c:4107 ext4_mb_mark_diskspace_used+0x3aa/0x830 fs/ext4/mballoc.c:4223 ext4_mb_new_blocks+0x840/0x36c0 fs/ext4/mballoc.c:6318 ext4_ext_map_blocks+0x14d9/0x6080 fs/ext4/extents.c:4437 ext4_map_create_blocks fs/ext4/inode.c:520 [inline] ext4_map_blocks+0x873/0x17f0 fs/ext4/inode.c:706 mpage_map_one_extent fs/ext4/inode.c:2222 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2275 [inline] ext4_do_writepages+0x1c4a/0x39f0 fs/ext4/inode.c:2738 ext4_writepages+0x28c/0x550 fs/ext4/inode.c:2827 do_writepages+0x3d4/0x7f0 mm/page-writeback.c:2689 __writeback_single_inode+0xc8/0xba0 fs/fs-writeback.c:1674 writeback_sb_inodes+0x6a5/0xfb0 fs/fs-writeback.c:1970 __writeback_inodes_wb+0x129/0x280 fs/fs-writeback.c:2041 wb_writeback+0x3bb/0x850 fs/fs-writeback.c:2152 wb_check_old_data_flush fs/fs-writeback.c:2256 [inline] wb_do_writeback fs/fs-writeback.c:2309 [inline] wb_workfn+0xa03/0xef0 fs/fs-writeback.c:2337 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task jbd2/sda1-8:73 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:0 pid:73 tgid:73 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x5a/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:422 [inline] jbd2_journal_commit_transaction+0x2dba/0x5510 fs/jbd2/commit.c:814 kjournald2+0x386/0x6a0 fs/jbd2/journal.c:201 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.2.224:591 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.224 state:D stack:0 pid:591 tgid:591 ppid:378 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:6060 [inline] __schedule+0x1496/0x20b0 kernel/sched/core.c:7880 __schedule_loop kernel/sched/core.c:7957 [inline] schedule+0xc5/0x240 kernel/sched/core.c:7972 io_schedule+0x88/0xe0 kernel/sched/core.c:8786 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_reserve_inode_write+0x1f6/0x2e0 fs/ext4/inode.c:5892 __ext4_mark_inode_dirty+0xac/0x5e0 fs/ext4/inode.c:6066 ext4_dirty_inode+0xc9/0x110 fs/ext4/inode.c:6103 __mark_inode_dirty+0x251/0xc50 fs/fs-writeback.c:2515 generic_update_time fs/inode.c:2056 [inline] inode_update_time fs/inode.c:2069 [inline] __file_update_time fs/inode.c:2258 [inline] file_update_time+0x1d3/0x210 fs/inode.c:2288 ext4_page_mkwrite+0x2bf/0x1120 fs/ext4/inode.c:6221 do_page_mkwrite mm/memory.c:3263 [inline] do_shared_fault mm/memory.c:5537 [inline] do_fault mm/memory.c:5599 [inline] do_pte_missing+0x12c4/0x4440 mm/memory.c:4069 handle_pte_fault mm/memory.c:5940 [inline] __handle_mm_fault mm/memory.c:6083 [inline] handle_mm_fault+0x1189/0x1ba0 mm/memory.c:6251 do_user_addr_fault+0x951/0x1230 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1479 [inline] exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f68ac26ba23 RSP: 002b:00007fff7572a040 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b34524000 RSI: 0000000000040000 RDI: 00007f68ac5e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007fff7572a2d0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 55bf8b22bdada172f4c106b01602b1dfb2209583 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 dump_stack+0x19/0x20 lib/dump_stack.c:129 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline] watchdog+0xe45/0xf90 kernel/hung_task.c:423 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 55bf8b22bdada172f4c106b01602b1dfb2209583 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:116 Code: cc cc cc cc cc cc cc b8 da f2 4e d7 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 19 43 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90 RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2 RAX: ffff8881f6f00000 RBX: ffff888103668000 RCX: ffffffff85a444fd RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000000244ac RBP: ffffc900001a7e00 R08: ffff8881f6f395eb R09: 1ffff1103ede72bd R10: dffffc0000000000 R11: ffffed103ede72be R12: 0000000000000000 R13: 1ffff110206cd000 R14: dffffc0000000000 R15: ffffffff87ecc068 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f590d717540 CR3: 000000010cf10000 CR4: 00000000003526b0 Call Trace: arch_safe_halt arch/x86/include/asm/paravirt.h:-1 [inline] default_idle+0x17/0x30 arch/x86/kernel/process.c:754 arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791 default_idle_call+0x3e/0x80 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:193 [inline] do_idle+0x1df/0x570 kernel/sched/idle.c:346 cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:445 start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314 common_startup_64+0x13b/0x157