Extracting prog: 1h34m52.523446189s Minimizing prog: 1h9m58.368847165s Simplifying prog options: 0s Extracting C: 3m12.63630973s Simplifying C: 58m42.068056402s extracting reproducer from 31 programs testing a last program of every proc single: executing 6 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$vim2m-syz_open_dev$char_usb-close_range detailed listing: executing program 0: syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0) r0 = syz_open_dev$vim2m(&(0x7f0000000000), 0x200001, 0x2) syz_open_dev$char_usb(0xc, 0xb4, 0x800000000000) close_range(r0, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): io_uring_setup-socket$inet_sctp-setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD-io_uring_enter detailed listing: executing program 0: r0 = io_uring_setup(0x645, &(0x7f00000000c0)={0x0, 0x7510, 0x3201, 0x3, 0x969}) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f0000000240)=[@in={0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}], 0x10) io_uring_enter(r0, 0x0, 0xcb, 0xf, &(0x7f0000000000), 0x18) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-connect$inet-sendmmsg$inet-bind$rds detailed listing: executing program 0: r0 = socket(0x840000000002, 0x3, 0x100) connect$inet(r0, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) sendmmsg$inet(r0, &(0x7f0000005240), 0x4000095, 0x0) bind$rds(r0, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$IPSET_CMD_CREATE-socket$nl_netfilter-sendmsg$IPSET_CMD_ADD detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000003c0)=ANY=[@ANYBLOB="5c0000000206030000000000000000000000000005000100070000000900020073797a31000000000c00078008000640000007010500050002000000050004000000000016000300686173683a6e65742c706f7274"], 0x5c}}, 0x0) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_ADD(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB="50000000090601020000ffff00000000020000000900020073797a31000000000500010007000000280007800c00018008000140ffffffff0500070011000000060004404e22000006000540"], 0x50}, 0x1, 0x0, 0x0, 0x10000082}, 0x20000880) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): capset-bpf$BPF_PROG_TEST_RUN-syz_open_dev$sg-ioctl$FIBMAP detailed listing: executing program 0: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): capset-bpf$BPF_PROG_TEST_RUN-syz_open_dev$sg-ioctl$FIBMAP detailed listing: executing program 0: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) program did not crash single: failed to extract reproducer bisect: bisecting 31 programs with base timeout 6m0s testing program (duration=6m7s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 3: close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000001c0), 0x8000, 0x0) ioctl$KVM_CHECK_EXTENSION(r0, 0xae03, 0x79) executing program 3: r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1) r1 = socket$inet6_sctp(0xa, 0x801, 0x84) listen(r1, 0x7) mount$9p_fd(0x0, &(0x7f0000000680)='./file0\x00', &(0x7f0000000380), 0x14c98, &(0x7f0000002780)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) executing program 3: r0 = userfaultfd(0x801) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000040)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x3}) ioctl$UFFDIO_WRITEPROTECT(r0, 0xc018aa06, &(0x7f0000000140)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1}) executing program 3: capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x87, 0xffffffff, 0x2}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x93, 0x0, &(0x7f0000000240)="b461802305624431ed33730100010446b20ae20200000000010000d5fe00c6fc6ef8eef9757a601bee93639000195bbd00000000bc5f6322cbfac4973cf2be3f656d8f6306800a39c13d9e7f4e574c343f83ef6d8b19cb1d4e28d0245197219f5effb0868ef74fa531e8d4fdccb78411b3c042d6809dc2216f57fe9179233605000000890000000031ddbca2767d6a4e7d4731", 0x0, 0x27951cdc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8af84fc4db748a7b, 0x0, 0x6}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2000) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 3: open(&(0x7f00000000c0)='./file2\x00', 0x24842, 0x80) r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x51) ioctl$FS_IOC_FSSETXATTR(r0, 0x401c5820, &(0x7f0000000080)={0x8}) rename(&(0x7f0000000040)='./file2\x00', &(0x7f0000000140)='./file1\x00') executing program 3: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 32: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 4: r0 = syz_usb_connect(0x5, 0x24, &(0x7f0000000080)=ANY=[@ANYBLOB="1201000007794608cd0c39007b90000000010902120001fc0000000904"], 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) r1 = syz_open_dev$I2C(&(0x7f0000000040), 0x1, 0x2603) ioctl$I2C_SMBUS(r1, 0x720, &(0x7f0000000340)={0x1, 0x8, 0x8, &(0x7f0000000300)={0x19, "f593c1a834483fc037496a024061fcc2a00a0fe7f09a828c969314880622a053f9"}}) executing program 1: unshare(0x400) r0 = memfd_create(&(0x7f0000000140)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa0q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x1a\x98S7\xc9\x00\x00\x00\x00\x00\v\a\x01Z\'\fy`', 0x3) fcntl$addseals(r0, 0x409, 0x7) fcntl$addseals(r0, 0x409, 0x0) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) executing program 1: mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0) openat$kvm(0x0, &(0x7f0000000240), 0x0, 0x0) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000c00000/0x400000)=nil) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000bff000/0x400000)=nil) executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@base={0x1, 0x6, 0x8, 0x8, 0x40}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x1e, 0xc, &(0x7f0000000440)=@framed={{}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {}, {}, {}, {0x85, 0x0, 0x0, 0x3}}]}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x31, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe1}, 0x94) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x14, &(0x7f0000000400)=ANY=[@ANYBLOB="180000000000000000000000000000001801000020646c2100000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000000000780850000002d"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x40f03, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$PROG_BIND_MAP(0xa, &(0x7f00000004c0)={r1}, 0xc) executing program 4: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000400), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000440)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_SET_MESH(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000004c0)={0x2c, r1, 0x1, 0x4070bd28, 0x1, {}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x818}]}, 0x2c}}, 0x18) executing program 0: r0 = socket$inet(0xa, 0x801, 0x84) connect$inet(r0, &(0x7f0000004cc0)={0x2, 0x4e26, @dev={0xac, 0x14, 0x14, 0x46}}, 0x5c) listen(r0, 0x8) writev(r0, &(0x7f0000000140)=[{&(0x7f0000000040)='w', 0x1}], 0x1) executing program 1: mkdir(&(0x7f0000000000)='./cgroup/../file0\x00', 0x0) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r1 = openat$cgroup_pressure(r0, &(0x7f0000000300)='io.pressure\x00', 0x2, 0x0) write$cgroup_pressure(r1, &(0x7f00000000c0)={'some', 0x25, 0x0, 0x20, 0xf}, 0x2f) executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) bind$inet(r0, &(0x7f0000000000)={0x2, 0x4e22, @empty}, 0x10) sendto$inet(r0, &(0x7f0000000a00)="b9", 0x1, 0x0, &(0x7f0000000a40)={0x2, 0x4e22, @local}, 0x10) getsockopt$inet_mreqn(r0, 0x0, 0x24, 0x0, &(0x7f0000000300)) executing program 4: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/i2c/devices/i2c-0/new_device\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='retu -', 0x6) executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000003c0)=ANY=[@ANYBLOB="5c0000000206030000000000000000000000000005000100070000000900020073797a31000000000c00078008000640000007010500050002000000050004000000000016000300686173683a6e65742c706f7274"], 0x5c}}, 0x0) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_ADD(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB="50000000090601020000ffff00000000020000000900020073797a31000000000500010007000000280007800c00018008000140ffffffff0500070011000000060004404e22000006000540"], 0x50}, 0x1, 0x0, 0x0, 0x10000082}, 0x20000880) executing program 2: r0 = msgget$private(0x0, 0x210) msgsnd(r0, &(0x7f0000002040)={0x3}, 0x8, 0x0) msgsnd(r0, &(0x7f0000000000)={0x2}, 0x8, 0x0) msgrcv(r0, &(0x7f0000000040)={0x0, ""/45}, 0x35, 0x2, 0x0) executing program 4: r0 = syz_io_uring_setup(0xf00, &(0x7f00000000c0)={0x0, 0x5961, 0x10000, 0x0, 0x35a}, &(0x7f0000000040)=0x0, &(0x7f0000000080)=0x0, &(0x7f0000000140)=0x0) r4 = io_uring_register$IORING_REGISTER_PERSONALITY(r0, 0x9, 0x0, 0x0) syz_io_uring_submit(r1, r2, r3, &(0x7f0000000280)=@IORING_OP_FIXED_FD_INSTALL={0x36, 0x7, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, r4}}) io_uring_enter(r0, 0x2000, 0xfffffffd, 0x9, 0x0, 0x0) executing program 2: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0) mmap(&(0x7f0000000000/0x400000)=nil, 0x400000, 0x8, 0x12, r0, 0x0) r1 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r1, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x9c2, 0x2, 0xac7d, 0x1fd, 0x1, 0x1}, 0x1c) executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x4e22, 0x7, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, 0x1c) bind$inet6(r0, &(0x7f0000000280)={0xa, 0x4e22, 0x9, @loopback, 0x4}, 0x1c) connect$inet6(r0, &(0x7f00000005c0)={0xa, 0x4e20, 0xd, @local, 0x2}, 0x1c) executing program 2: setns(0xc9, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), r0) sendmsg$NL80211_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x1c, r1, 0x5, 0x70bd2a, 0x0, {{}, {@val={0x8}, @void}}}, 0x1c}}, 0x810) executing program 4: r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000001480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000340)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="3400000011000100000000000000000007000000", @ANYRES32=r2, @ANYBLOB="000000000000000014001a80100004800c"], 0x34}}, 0x0) executing program 2: r0 = syz_init_net_socket$llc(0x1a, 0x801, 0x0) setns(0xc9, 0x0) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net/llc/socket\x00') sendfile(r0, r1, &(0x7f0000000100)=0x4f, 0xff) executing program 4: r0 = socket(0x840000000002, 0x3, 0x100) connect$inet(r0, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) sendmmsg$inet(r0, &(0x7f0000005240), 0x4000095, 0x0) bind$rds(r0, 0x0, 0x0) executing program 0: sendmsg$TIPC_NL_MEDIA_GET(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000200)={0x6c, 0x0, 0x1, 0x2000000, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x58, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x44, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x13}, 0xf8}}, {0x20, 0x2, @in6={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @empty}, 0x3}}}}, @TIPC_NLA_BEARER_NAME={0xd, 0x1, @udp='udp:syz0\x00'}]}]}, 0x6c}}, 0x0) r0 = bpf$MAP_CREATE(0x1900000000000000, &(0x7f0000000040)=ANY=[@ANYBLOB="1b00000000000000000000000020"], 0x50) mmap(&(0x7f0000002000/0x3000)=nil, 0x3000, 0x1000001, 0x12, r0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000007c0)={0x18, 0xf, &(0x7f0000000240)=ANY=[@ANYBLOB="180000000800000000000000feffffff181100", @ANYRES32=r0, @ANYRES64=r0], &(0x7f0000000180)='GPL\x00', 0x9, 0x1003, &(0x7f0000001e40)=""/4099, 0x41000, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94) executing program 2: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracefs_dir\x00', 0x1ff) mount(0x0, &(0x7f00000000c0)='./tracefs_dir\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./tracefs_dir/buffer_size_kb\x00', 0x0, 0x0) readv(r0, &(0x7f0000000240)=[{&(0x7f0000000840)=""/253, 0xfd}], 0x1) executing program 0: r0 = io_uring_setup(0x645, &(0x7f00000000c0)={0x0, 0x7510, 0x3201, 0x3, 0x969}) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f0000000240)=[@in={0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}], 0x10) io_uring_enter(r0, 0x0, 0xcb, 0xf, &(0x7f0000000000), 0x18) executing program 2: syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0) r0 = syz_open_dev$vim2m(&(0x7f0000000000), 0x200001, 0x2) syz_open_dev$char_usb(0xc, 0xb4, 0x800000000000) close_range(r0, 0xffffffffffffffff, 0x0) program crashed: INFO: task hung in do_get_write_access bisect: bisecting 31 programs bisect: split chunks (needed=false): <31> bisect: split chunk #0 of len 31 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=6m5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 1: mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0) openat$kvm(0x0, &(0x7f0000000240), 0x0, 0x0) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000c00000/0x400000)=nil) syz_kvm_setup_syzos_vm$x86(0xffffffffffffffff, &(0x7f0000bff000/0x400000)=nil) executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f00000003c0)=@base={0x1, 0x6, 0x8, 0x8, 0x40}, 0x50) bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x1e, 0xc, &(0x7f0000000440)=@framed={{}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {}, {}, {}, {}, {}, {}, {0x85, 0x0, 0x0, 0x3}}]}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback=0x31, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe1}, 0x94) r1 = bpf$PROG_LOAD(0x5, &(0x7f0000000680)={0x11, 0x14, &(0x7f0000000400)=ANY=[@ANYBLOB="180000000000000000000000000000001801000020646c2100000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000000000780850000002d"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x40f03, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$PROG_BIND_MAP(0xa, &(0x7f00000004c0)={r1}, 0xc) executing program 4: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000400), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000440)={'batadv0\x00', 0x0}) sendmsg$BATADV_CMD_SET_MESH(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000280)={&(0x7f00000004c0)={0x2c, r1, 0x1, 0x4070bd28, 0x1, {}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_AGGREGATED_OGMS_ENABLED={0x5}, @BATADV_ATTR_MULTICAST_FANOUT={0x8, 0x3c, 0x818}]}, 0x2c}}, 0x18) executing program 0: r0 = socket$inet(0xa, 0x801, 0x84) connect$inet(r0, &(0x7f0000004cc0)={0x2, 0x4e26, @dev={0xac, 0x14, 0x14, 0x46}}, 0x5c) listen(r0, 0x8) writev(r0, &(0x7f0000000140)=[{&(0x7f0000000040)='w', 0x1}], 0x1) executing program 1: mkdir(&(0x7f0000000000)='./cgroup/../file0\x00', 0x0) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r1 = openat$cgroup_pressure(r0, &(0x7f0000000300)='io.pressure\x00', 0x2, 0x0) write$cgroup_pressure(r1, &(0x7f00000000c0)={'some', 0x25, 0x0, 0x20, 0xf}, 0x2f) executing program 0: r0 = socket$inet_sctp(0x2, 0x5, 0x84) bind$inet(r0, &(0x7f0000000000)={0x2, 0x4e22, @empty}, 0x10) sendto$inet(r0, &(0x7f0000000a00)="b9", 0x1, 0x0, &(0x7f0000000a40)={0x2, 0x4e22, @local}, 0x10) getsockopt$inet_mreqn(r0, 0x0, 0x24, 0x0, &(0x7f0000000300)) executing program 4: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/i2c/devices/i2c-0/new_device\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='retu -', 0x6) executing program 1: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(r0, &(0x7f00000002c0)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f00000003c0)=ANY=[@ANYBLOB="5c0000000206030000000000000000000000000005000100070000000900020073797a31000000000c00078008000640000007010500050002000000050004000000000016000300686173683a6e65742c706f7274"], 0x5c}}, 0x0) r1 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_ADD(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB="50000000090601020000ffff00000000020000000900020073797a31000000000500010007000000280007800c00018008000140ffffffff0500070011000000060004404e22000006000540"], 0x50}, 0x1, 0x0, 0x0, 0x10000082}, 0x20000880) executing program 2: r0 = msgget$private(0x0, 0x210) msgsnd(r0, &(0x7f0000002040)={0x3}, 0x8, 0x0) msgsnd(r0, &(0x7f0000000000)={0x2}, 0x8, 0x0) msgrcv(r0, &(0x7f0000000040)={0x0, ""/45}, 0x35, 0x2, 0x0) executing program 4: r0 = syz_io_uring_setup(0xf00, &(0x7f00000000c0)={0x0, 0x5961, 0x10000, 0x0, 0x35a}, &(0x7f0000000040)=0x0, &(0x7f0000000080)=0x0, &(0x7f0000000140)=0x0) r4 = io_uring_register$IORING_REGISTER_PERSONALITY(r0, 0x9, 0x0, 0x0) syz_io_uring_submit(r1, r2, r3, &(0x7f0000000280)=@IORING_OP_FIXED_FD_INSTALL={0x36, 0x7, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, r4}}) io_uring_enter(r0, 0x2000, 0xfffffffd, 0x9, 0x0, 0x0) executing program 2: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuacct.usage_sys\x00', 0x275a, 0x0) mmap(&(0x7f0000000000/0x400000)=nil, 0x400000, 0x8, 0x12, r0, 0x0) r1 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r1, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x9c2, 0x2, 0xac7d, 0x1fd, 0x1, 0x1}, 0x1c) executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x4e22, 0x7, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, 0x1c) bind$inet6(r0, &(0x7f0000000280)={0xa, 0x4e22, 0x9, @loopback, 0x4}, 0x1c) connect$inet6(r0, &(0x7f00000005c0)={0xa, 0x4e20, 0xd, @local, 0x2}, 0x1c) executing program 2: setns(0xc9, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), r0) sendmsg$NL80211_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x1c, r1, 0x5, 0x70bd2a, 0x0, {{}, {@val={0x8}, @void}}}, 0x1c}}, 0x810) executing program 4: r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000001480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000340)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="3400000011000100000000000000000007000000", @ANYRES32=r2, @ANYBLOB="000000000000000014001a80100004800c"], 0x34}}, 0x0) executing program 2: r0 = syz_init_net_socket$llc(0x1a, 0x801, 0x0) setns(0xc9, 0x0) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net/llc/socket\x00') sendfile(r0, r1, &(0x7f0000000100)=0x4f, 0xff) executing program 4: r0 = socket(0x840000000002, 0x3, 0x100) connect$inet(r0, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) sendmmsg$inet(r0, &(0x7f0000005240), 0x4000095, 0x0) bind$rds(r0, 0x0, 0x0) executing program 0: sendmsg$TIPC_NL_MEDIA_GET(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000200)={0x6c, 0x0, 0x1, 0x2000000, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x58, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x44, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x13}, 0xf8}}, {0x20, 0x2, @in6={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @empty}, 0x3}}}}, @TIPC_NLA_BEARER_NAME={0xd, 0x1, @udp='udp:syz0\x00'}]}]}, 0x6c}}, 0x0) r0 = bpf$MAP_CREATE(0x1900000000000000, &(0x7f0000000040)=ANY=[@ANYBLOB="1b00000000000000000000000020"], 0x50) mmap(&(0x7f0000002000/0x3000)=nil, 0x3000, 0x1000001, 0x12, r0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000007c0)={0x18, 0xf, &(0x7f0000000240)=ANY=[@ANYBLOB="180000000800000000000000feffffff181100", @ANYRES32=r0, @ANYRES64=r0], &(0x7f0000000180)='GPL\x00', 0x9, 0x1003, &(0x7f0000001e40)=""/4099, 0x41000, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94) executing program 2: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracefs_dir\x00', 0x1ff) mount(0x0, &(0x7f00000000c0)='./tracefs_dir\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./tracefs_dir/buffer_size_kb\x00', 0x0, 0x0) readv(r0, &(0x7f0000000240)=[{&(0x7f0000000840)=""/253, 0xfd}], 0x1) executing program 0: r0 = io_uring_setup(0x645, &(0x7f00000000c0)={0x0, 0x7510, 0x3201, 0x3, 0x969}) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f0000000240)=[@in={0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}], 0x10) io_uring_enter(r0, 0x0, 0xcb, 0xf, &(0x7f0000000000), 0x18) executing program 2: syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0) r0 = syz_open_dev$vim2m(&(0x7f0000000000), 0x200001, 0x2) syz_open_dev$char_usb(0xc, 0xb4, 0x800000000000) close_range(r0, 0xffffffffffffffff, 0x0) program did not crash bisect: testing without sub-chunk 2/3 testing program (duration=6m5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 3: close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000001c0), 0x8000, 0x0) ioctl$KVM_CHECK_EXTENSION(r0, 0xae03, 0x79) executing program 3: r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1) r1 = socket$inet6_sctp(0xa, 0x801, 0x84) listen(r1, 0x7) mount$9p_fd(0x0, &(0x7f0000000680)='./file0\x00', &(0x7f0000000380), 0x14c98, &(0x7f0000002780)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) executing program 3: r0 = userfaultfd(0x801) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000040)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x3}) ioctl$UFFDIO_WRITEPROTECT(r0, 0xc018aa06, &(0x7f0000000140)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1}) executing program 3: capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x87, 0xffffffff, 0x2}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x93, 0x0, &(0x7f0000000240)="b461802305624431ed33730100010446b20ae20200000000010000d5fe00c6fc6ef8eef9757a601bee93639000195bbd00000000bc5f6322cbfac4973cf2be3f656d8f6306800a39c13d9e7f4e574c343f83ef6d8b19cb1d4e28d0245197219f5effb0868ef74fa531e8d4fdccb78411b3c042d6809dc2216f57fe9179233605000000890000000031ddbca2767d6a4e7d4731", 0x0, 0x27951cdc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8af84fc4db748a7b, 0x0, 0x6}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2000) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 3: open(&(0x7f00000000c0)='./file2\x00', 0x24842, 0x80) r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x51) ioctl$FS_IOC_FSSETXATTR(r0, 0x401c5820, &(0x7f0000000080)={0x8}) rename(&(0x7f0000000040)='./file2\x00', &(0x7f0000000140)='./file1\x00') executing program 3: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 32: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 4: r0 = syz_usb_connect(0x5, 0x24, &(0x7f0000000080)=ANY=[@ANYBLOB="1201000007794608cd0c39007b90000000010902120001fc0000000904"], 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) r1 = syz_open_dev$I2C(&(0x7f0000000040), 0x1, 0x2603) ioctl$I2C_SMBUS(r1, 0x720, &(0x7f0000000340)={0x1, 0x8, 0x8, &(0x7f0000000300)={0x19, "f593c1a834483fc037496a024061fcc2a00a0fe7f09a828c969314880622a053f9"}}) executing program 1: unshare(0x400) r0 = memfd_create(&(0x7f0000000140)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa0q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x1a\x98S7\xc9\x00\x00\x00\x00\x00\v\a\x01Z\'\fy`', 0x3) fcntl$addseals(r0, 0x409, 0x7) fcntl$addseals(r0, 0x409, 0x0) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) connect$inet6(r0, &(0x7f0000000100)={0xa, 0x4e22, 0x7, @ipv4={'\x00', '\xff\xff', @remote}, 0x7}, 0x1c) bind$inet6(r0, &(0x7f0000000280)={0xa, 0x4e22, 0x9, @loopback, 0x4}, 0x1c) connect$inet6(r0, &(0x7f00000005c0)={0xa, 0x4e20, 0xd, @local, 0x2}, 0x1c) executing program 2: setns(0xc9, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000040), r0) sendmsg$NL80211_CMD_CONNECT(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000080)={0x1c, r1, 0x5, 0x70bd2a, 0x0, {{}, {@val={0x8}, @void}}}, 0x1c}}, 0x810) executing program 4: r0 = socket$netlink(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000001480)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000340)={'bridge_slave_0\x00', 0x0}) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000140)=ANY=[@ANYBLOB="3400000011000100000000000000000007000000", @ANYRES32=r2, @ANYBLOB="000000000000000014001a80100004800c"], 0x34}}, 0x0) executing program 2: r0 = syz_init_net_socket$llc(0x1a, 0x801, 0x0) setns(0xc9, 0x0) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000080)='net/llc/socket\x00') sendfile(r0, r1, &(0x7f0000000100)=0x4f, 0xff) executing program 4: r0 = socket(0x840000000002, 0x3, 0x100) connect$inet(r0, &(0x7f0000000000)={0x2, 0x0, @remote}, 0x10) sendmmsg$inet(r0, &(0x7f0000005240), 0x4000095, 0x0) bind$rds(r0, 0x0, 0x0) executing program 0: sendmsg$TIPC_NL_MEDIA_GET(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f00000005c0)={&(0x7f0000000200)={0x6c, 0x0, 0x1, 0x2000000, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x58, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_UDP_OPTS={0x44, 0x4, {{0x20, 0x1, @in6={0xa, 0x0, 0x0, @dev={0xfe, 0x80, '\x00', 0x13}, 0xf8}}, {0x20, 0x2, @in6={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @empty}, 0x3}}}}, @TIPC_NLA_BEARER_NAME={0xd, 0x1, @udp='udp:syz0\x00'}]}]}, 0x6c}}, 0x0) r0 = bpf$MAP_CREATE(0x1900000000000000, &(0x7f0000000040)=ANY=[@ANYBLOB="1b00000000000000000000000020"], 0x50) mmap(&(0x7f0000002000/0x3000)=nil, 0x3000, 0x1000001, 0x12, r0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000007c0)={0x18, 0xf, &(0x7f0000000240)=ANY=[@ANYBLOB="180000000800000000000000feffffff181100", @ANYRES32=r0, @ANYRES64=r0], &(0x7f0000000180)='GPL\x00', 0x9, 0x1003, &(0x7f0000001e40)=""/4099, 0x41000, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x9}, 0x94) executing program 2: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./tracefs_dir\x00', 0x1ff) mount(0x0, &(0x7f00000000c0)='./tracefs_dir\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./tracefs_dir/buffer_size_kb\x00', 0x0, 0x0) readv(r0, &(0x7f0000000240)=[{&(0x7f0000000840)=""/253, 0xfd}], 0x1) executing program 0: r0 = io_uring_setup(0x645, &(0x7f00000000c0)={0x0, 0x7510, 0x3201, 0x3, 0x969}) r1 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f0000000240)=[@in={0x2, 0x0, @initdev={0xac, 0x1e, 0x0, 0x0}}], 0x10) io_uring_enter(r0, 0x0, 0xcb, 0xf, &(0x7f0000000000), 0x18) executing program 2: syz_usb_connect(0x0, 0x32, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040a61b01000100000000010902200001010080320904"], 0x0) r0 = syz_open_dev$vim2m(&(0x7f0000000000), 0x200001, 0x2) syz_open_dev$char_usb(0xc, 0xb4, 0x800000000000) close_range(r0, 0xffffffffffffffff, 0x0) program crashed: INFO: task hung in __ext4_find_entry bisect: the chunk can be dropped bisect: testing without sub-chunk 3/3 testing program (duration=6m2s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 3: close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) mmap$IORING_OFF_SQ_RING(0x110c230000, 0x8000002, 0x2000007, 0x401d031, 0xffffffffffffffff, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000001c0), 0x8000, 0x0) ioctl$KVM_CHECK_EXTENSION(r0, 0xae03, 0x79) executing program 3: r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1) r1 = socket$inet6_sctp(0xa, 0x801, 0x84) listen(r1, 0x7) mount$9p_fd(0x0, &(0x7f0000000680)='./file0\x00', &(0x7f0000000380), 0x14c98, &(0x7f0000002780)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}}) executing program 3: r0 = userfaultfd(0x801) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000040)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x3}) ioctl$UFFDIO_WRITEPROTECT(r0, 0xc018aa06, &(0x7f0000000140)={{&(0x7f0000400000/0xc00000)=nil, 0xc00000}, 0x1}) executing program 3: capset(&(0x7f0000000040)={0x20080522}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x87, 0xffffffff, 0x2}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x93, 0x0, &(0x7f0000000240)="b461802305624431ed33730100010446b20ae20200000000010000d5fe00c6fc6ef8eef9757a601bee93639000195bbd00000000bc5f6322cbfac4973cf2be3f656d8f6306800a39c13d9e7f4e574c343f83ef6d8b19cb1d4e28d0245197219f5effb0868ef74fa531e8d4fdccb78411b3c042d6809dc2216f57fe9179233605000000890000000031ddbca2767d6a4e7d4731", 0x0, 0x27951cdc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8af84fc4db748a7b, 0x0, 0x6}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2000) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 3: open(&(0x7f00000000c0)='./file2\x00', 0x24842, 0x80) r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x0, 0x51) ioctl$FS_IOC_FSSETXATTR(r0, 0x401c5820, &(0x7f0000000080)={0x8}) rename(&(0x7f0000000040)='./file2\x00', &(0x7f0000000140)='./file1\x00') executing program 3: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 32: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 4: r0 = syz_usb_connect(0x5, 0x24, &(0x7f0000000080)=ANY=[@ANYBLOB="1201000007794608cd0c39007b90000000010902120001fc0000000904"], 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) r1 = syz_open_dev$I2C(&(0x7f0000000040), 0x1, 0x2603) ioctl$I2C_SMBUS(r1, 0x720, &(0x7f0000000340)={0x1, 0x8, 0x8, &(0x7f0000000300)={0x19, "f593c1a834483fc037496a024061fcc2a00a0fe7f09a828c969314880622a053f9"}}) executing program 1: unshare(0x400) r0 = memfd_create(&(0x7f0000000140)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa0q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x1a\x98S7\xc9\x00\x00\x00\x00\x00\v\a\x01Z\'\fy`', 0x3) fcntl$addseals(r0, 0x409, 0x7) fcntl$addseals(r0, 0x409, 0x0) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) program crashed: INFO: task hung in do_get_write_access bisect: the chunk can be dropped bisect: split chunks (needed=true): <11> bisect: split chunk #0 of len 11 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m1s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4] detailed listing: executing program 32: capset(&(0x7f0000000040)={0x19980330}, &(0x7f0000000080)={0x6, 0x6, 0x2, 0x8087, 0x6, 0xd}) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000040)={0xffffffffffffffff, 0x0, 0x52, 0x0, &(0x7f0000000480)="b461802305624431ed337301000000010000986919d5d5fe00c6fc6ef852506b41edcd3beef9757a601bee936390009c5bbd000000003632b69f0eb2062818f298ed54aba245e80eab18bc6f632251fac400", 0x0, 0x422, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x0, 0x403}, 0x50) r0 = syz_open_dev$sg(&(0x7f0000000140), 0x6f5e, 0x2) ioctl$FIBMAP(r0, 0x1, &(0x7f0000000040)=0x85) executing program 4: r0 = syz_usb_connect(0x5, 0x24, &(0x7f0000000080)=ANY=[@ANYBLOB="1201000007794608cd0c39007b90000000010902120001fc0000000904"], 0x0) syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0) r1 = syz_open_dev$I2C(&(0x7f0000000040), 0x1, 0x2603) ioctl$I2C_SMBUS(r1, 0x720, &(0x7f0000000340)={0x1, 0x8, 0x8, &(0x7f0000000300)={0x19, "f593c1a834483fc037496a024061fcc2a00a0fe7f09a828c969314880622a053f9"}}) executing program 1: unshare(0x400) r0 = memfd_create(&(0x7f0000000140)='y\x105\xfb\xf7u\x83%:r\xc2\xb9x\xa0q\xc1\xea_\x8cZ7\xcda\x9b\x11X\x0e\xa1\xcf\x1a\x98S7\xc9\x00\x00\x00\x00\x00\v\a\x01Z\'\fy`', 0x3) fcntl$addseals(r0, 0x409, 0x7) fcntl$addseals(r0, 0x409, 0x0) 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) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) program crashed: INFO: task hung in do_get_write_access bisect: the chunk can be dropped bisect: testing without sub-chunk 2/2 bisect: no need to test this chunk, it's definitely needed bisect: split chunks (needed=true): <5> bisect: split chunk #0 of len 5 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4] detailed listing: executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) program crashed: INFO: task hung in do_get_write_access 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): <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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mount$overlay-listxattr detailed listing: executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000500)='debugfs\x00', 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000003c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) listxattr(&(0x7f0000000080)='./file0\x00', &(0x7f0000000400)=""/2, 0x2) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program crashed: INFO: task hung in do_get_write_access 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) pwrite64(r0, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=9m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program crashed: INFO: task hung in do_get_write_access bisect: concatenation succeeded found reproducer with 4 syscalls minimizing guilty program testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(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) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) pwrite64(0xffffffffffffffff, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, 0x2) program did not crash testing program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-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, &(0x7f00000004c0), 0x0, 0x2) program did not crash extracting C reproducer testing compiled C program (duration=6m50.62616899s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access simplifying C reproducer testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in __rq_qos_throttle a never seen crash title: INFO: task hung in __rq_qos_throttle, ignore testing compiled C program (duration=6m50.62616899s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in corrupted a never seen crash title: INFO: task hung in corrupted, ignore testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program did not crash testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program did not crash testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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:false Swap:true 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=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true testing program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true testing program (duration=6m50.62616899s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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: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, &(0x7f00000004c0)="02155e6509625285a565d235077879efa843adf933737d90a5ab08d8cef99870ed0c4be6", 0x24, 0x2) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true reproducing took 4h1m49.45099271s repro crashed as (corrupted=false): INFO: task kworker/u8:8:1022 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:8 state:D stack:21264 pid:1022 tgid:1022 ppid:2 task_flags:0x4248060 flags:0x00080000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249 ext4_mb_mark_context+0x325/0xec0 fs/ext4/mballoc.c:4125 ext4_mb_mark_diskspace_used+0x338/0x760 fs/ext4/mballoc.c:4241 ext4_mb_new_blocks+0x106f/0x4540 fs/ext4/mballoc.c:6329 ext4_ext_map_blocks+0x13f1/0x5680 fs/ext4/extents.c:4469 ext4_map_create_blocks+0x116/0x530 fs/ext4/inode.c:630 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823 mpage_map_one_extent fs/ext4/inode.c:2379 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline] ext4_do_writepages+0x239b/0x4770 fs/ext4/inode.c:2938 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032 do_writepages+0x338/0x560 mm/page-writeback.c:2560 __writeback_single_inode+0x136/0x1230 fs/fs-writeback.c:1788 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2099 __writeback_inodes_wb+0x114/0x240 fs/fs-writeback.c:2175 wb_writeback+0x42f/0xad0 fs/fs-writeback.c:2286 wb_check_old_data_flush fs/fs-writeback.c:2390 [inline] wb_do_writeback fs/fs-writeback.c:2469 [inline] wb_workfn+0xc98/0x10f0 fs/fs-writeback.c:2497 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task jbd2/sda1-8:4913 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:25496 pid:4913 tgid:4913 ppid:2 task_flags:0x240040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_buffer include/linux/buffer_head.h:418 [inline] jbd2_journal_commit_transaction+0x2f26/0x5ba0 fs/jbd2/commit.c:834 kjournald2+0x3bc/0x750 fs/jbd2/journal.c:200 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task syz.0.76:5884 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.76 state:D stack:27120 pid:5884 tgid:5884 ppid:5721 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x146/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2253 [inline] file_update_time_flags+0x39f/0x450 fs/inode.c:2483 ext4_page_mkwrite+0x225/0x1150 fs/ext4/inode.c:6902 do_page_mkwrite+0x14a/0x310 mm/memory.c:3816 do_shared_fault mm/memory.c:6076 [inline] do_fault mm/memory.c:6138 [inline] do_pte_missing+0x734/0x28f0 mm/memory.c:4700 handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0xf64/0x28c0 mm/memory.c:6876 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fc3d1466871 RSP: 002b:00007fff168bb820 EFLAGS: 00010202 RAX: 0000001b32464000 RBX: 0000000000000000 RCX: 000000000003fde8 RDX: 0000001b32463fff RSI: 0000000000000008 RDI: 00007fc3d2355720 RBP: 00007fc3d2355720 R08: 0000000000000000 R09: 00007fc3d1826038 R10: 00007fc3d2355700 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 Showing all locks held in the system: locks held by khungtaskd/38: 1, last CPU#0: #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871 locks held by kworker/u8:8/1022: 6, on CPU#0: #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479 #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479 #2: ffff888036a7c0e0 (&type->s_umount_key#34){++++}-{4:4}, at: super_trylock_shared+0x23/0xf0 fs/super.c:674 #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline] #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1887 [inline] #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3031 #4: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 #5: ffff888045254638 (&ei->i_data_sem#2){++++}-{4:4}, at: ext4_map_blocks+0x77d/0x12c0 fs/ext4/inode.c:822 locks held by getty/5336: 2, on CPU#1: #0: ffff888036a330a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900044bb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211 locks held by syz.0.76/5884: 3, on CPU#1: #0: ffff888033b70308 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310 #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs/super.h:19 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x203/0x1150 fs/ext4/inode.c:6901 #2: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 locks held by syz-executor/5890: 3, on CPU#0: #0: ffff888036a7c510 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494 #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1069 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2918 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2942 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5092 #2: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd7/0x1030 kernel/hung_task.c:561 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 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 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: dc 5a 02 e9 93 d8 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d b3 1c 12 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 RSP: 0018:ffffc900001d7e40 EFLAGS: 00000246 RAX: 000000000006aeed RBX: ffffffff819a8490 RCX: 8000000000000001 RDX: 0000000000000001 RSI: ffffffff8d869fd8 RDI: ffffffff8bcc2e80 RBP: ffffc900001d7f10 R08: ffff8880b8733e9b R09: 1ffff110170e67d3 R10: dffffc0000000000 R11: ffffed10170e67d4 R12: 0000000000000000 R13: 1ffff110039d3000 R14: 1ffff9200003afd0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125cca000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fd76db7168 CR3: 000000000dfb0000 CR4: 00000000003526f0 Call Trace: arch_safe_halt arch/x86/kernel/process.c:767 [inline] default_idle+0x9/0x20 arch/x86/kernel/process.c:768 default_idle_call+0x72/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x2e0/0x540 kernel/sched/idle.c:355 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x157 final repro crashed as (corrupted=false): INFO: task kworker/u8:8:1022 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:8 state:D stack:21264 pid:1022 tgid:1022 ppid:2 task_flags:0x4248060 flags:0x00080000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249 ext4_mb_mark_context+0x325/0xec0 fs/ext4/mballoc.c:4125 ext4_mb_mark_diskspace_used+0x338/0x760 fs/ext4/mballoc.c:4241 ext4_mb_new_blocks+0x106f/0x4540 fs/ext4/mballoc.c:6329 ext4_ext_map_blocks+0x13f1/0x5680 fs/ext4/extents.c:4469 ext4_map_create_blocks+0x116/0x530 fs/ext4/inode.c:630 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823 mpage_map_one_extent fs/ext4/inode.c:2379 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline] ext4_do_writepages+0x239b/0x4770 fs/ext4/inode.c:2938 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032 do_writepages+0x338/0x560 mm/page-writeback.c:2560 __writeback_single_inode+0x136/0x1230 fs/fs-writeback.c:1788 writeback_sb_inodes+0x9db/0x1ab0 fs/fs-writeback.c:2099 __writeback_inodes_wb+0x114/0x240 fs/fs-writeback.c:2175 wb_writeback+0x42f/0xad0 fs/fs-writeback.c:2286 wb_check_old_data_flush fs/fs-writeback.c:2390 [inline] wb_do_writeback fs/fs-writeback.c:2469 [inline] wb_workfn+0xc98/0x10f0 fs/fs-writeback.c:2497 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task jbd2/sda1-8:4913 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:25496 pid:4913 tgid:4913 ppid:2 task_flags:0x240040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_buffer include/linux/buffer_head.h:418 [inline] jbd2_journal_commit_transaction+0x2f26/0x5ba0 fs/jbd2/commit.c:834 kjournald2+0x3bc/0x750 fs/jbd2/journal.c:200 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 INFO: task syz.0.76:5884 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.76 state:D stack:27120 pid:5884 tgid:5884 ppid:5721 task_flags:0x440040 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x16d9/0x5700 kernel/sched/core.c:7277 __schedule_loop kernel/sched/core.c:7354 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7369 io_schedule+0x80/0xe0 kernel/sched/core.c:8213 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:258 __wait_on_bit+0xac/0x2f0 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_bit_io include/linux/wait_bit.h:106 [inline] do_get_write_access+0x671/0x1090 fs/jbd2/transaction.c:1113 jbd2_journal_get_write_access+0x1d7/0x230 fs/jbd2/transaction.c:1263 __ext4_journal_get_write_access+0xf1/0x620 fs/ext4/ext4_jbd2.c:249 ext4_reserve_inode_write+0x294/0x360 fs/ext4/inode.c:6514 __ext4_mark_inode_dirty+0x146/0x7b0 fs/ext4/inode.c:6699 ext4_dirty_inode+0xd0/0x110 fs/ext4/inode.c:6736 __mark_inode_dirty+0x3a8/0x13b0 fs/fs-writeback.c:2729 generic_update_time fs/inode.c:2253 [inline] file_update_time_flags+0x39f/0x450 fs/inode.c:2483 ext4_page_mkwrite+0x225/0x1150 fs/ext4/inode.c:6902 do_page_mkwrite+0x14a/0x310 mm/memory.c:3816 do_shared_fault mm/memory.c:6076 [inline] do_fault mm/memory.c:6138 [inline] do_pte_missing+0x734/0x28f0 mm/memory.c:4700 handle_pte_fault mm/memory.c:6558 [inline] __handle_mm_fault mm/memory.c:6707 [inline] handle_mm_fault+0xf64/0x28c0 mm/memory.c:6876 do_user_addr_fault+0xa4f/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7fc3d1466871 RSP: 002b:00007fff168bb820 EFLAGS: 00010202 RAX: 0000001b32464000 RBX: 0000000000000000 RCX: 000000000003fde8 RDX: 0000001b32463fff RSI: 0000000000000008 RDI: 00007fc3d2355720 RBP: 00007fc3d2355720 R08: 0000000000000000 R09: 00007fc3d1826038 R10: 00007fc3d2355700 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 Showing all locks held in the system: locks held by khungtaskd/38: 1, last CPU#0: #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6871 locks held by kworker/u8:8/1022: 6, on CPU#0: #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline] #0: ffff88801f2b5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479 #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3361 [inline] #1: ffffc900055a7c40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3479 #2: ffff888036a7c0e0 (&type->s_umount_key#34){++++}-{4:4}, at: super_trylock_shared+0x23/0xf0 fs/super.c:674 #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline] #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1887 [inline] #3: ffff888036a18d98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3031 #4: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 #5: ffff888045254638 (&ei->i_data_sem#2){++++}-{4:4}, at: ext4_map_blocks+0x77d/0x12c0 fs/ext4/inode.c:822 locks held by getty/5336: 2, on CPU#1: #0: ffff888036a330a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900044bb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 drivers/tty/n_tty.c:2211 locks held by syz.0.76/5884: 3, on CPU#1: #0: ffff888033b70308 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500 mm/mmap_lock.c:310 #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs/super.h:19 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs/super.h:159 [inline] #1: ffff888036a7c688 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x203/0x1150 fs/ext4/inode.c:6901 #2: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 locks held by syz-executor/5890: 3, on CPU#0: #0: ffff888036a7c510 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494 #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1069 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2918 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2942 [inline] #1: ffff88803fd85320 (&type->i_mutex_dir_key#3/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:5092 #2: ffff8880360aabb0 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x1fbf/0x2200 fs/jbd2/transaction.c:444 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd7/0x1030 kernel/hung_task.c:561 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 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 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: dc 5a 02 e9 93 d8 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d b3 1c 12 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 RSP: 0018:ffffc900001d7e40 EFLAGS: 00000246 RAX: 000000000006aeed RBX: ffffffff819a8490 RCX: 8000000000000001 RDX: 0000000000000001 RSI: ffffffff8d869fd8 RDI: ffffffff8bcc2e80 RBP: ffffc900001d7f10 R08: ffff8880b8733e9b R09: 1ffff110170e67d3 R10: dffffc0000000000 R11: ffffed10170e67d4 R12: 0000000000000000 R13: 1ffff110039d3000 R14: 1ffff9200003afd0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125cca000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fd76db7168 CR3: 000000000dfb0000 CR4: 00000000003526f0 Call Trace: arch_safe_halt arch/x86/kernel/process.c:767 [inline] default_idle+0x9/0x20 arch/x86/kernel/process.c:768 default_idle_call+0x72/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x2e0/0x540 kernel/sched/idle.c:355 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454 start_secondary+0x101/0x110 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x157