Extracting prog: 1h11m7.274301179s Minimizing prog: 1h3m22.361083691s Simplifying prog options: 0s Extracting C: 3m10.390172684s Simplifying C: 28m24.489893845s extracting reproducer from 24 programs testing a last program of every proc single: executing 4 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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}}): ioperm-close_range-socket$inet6-cachestat detailed listing: executing program 0: ioperm(0x0, 0x62ee, 0x2000000000000006) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r0 = socket$inet6(0xa, 0x802, 0x0) cachestat(r0, &(0x7f0000000000)={0x20000008264, 0xffffffff}, 0x0, 0xee) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_mount_image$vfat-openat$dir-fanotify_init-fanotify_mark detailed listing: executing program 0: syz_mount_image$vfat(&(0x7f0000000840), &(0x7f0000000080)='./bus\x00', 0x2, &(0x7f0000000b40)=ANY=[], 0x1, 0x307, &(0x7f0000001b40)="$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") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0, 0x0) r1 = fanotify_init(0x200, 0x0) fanotify_mark(r1, 0x39, 0x40000000, r0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-ioctl$FS_IOC_GETFSMAP-ioctl$SECCOMP_IOCTL_NOTIF_SEND detailed listing: executing program 0: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f00000005c0)=[{0x6}]}) ioctl$FS_IOC_GETFSMAP(0xffffffffffffffff, 0xc0c0583b, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0502103, &(0x7f00000001c0)) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-setsockopt$netlink_NETLINK_TX_RING-write-syz_usb_connect$uac2 detailed listing: executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) program did not crash single: failed to extract reproducer bisect: bisecting 24 programs with base timeout 6m0s testing program (duration=6m6s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 2: r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f0000000240)={0x1, &(0x7f0000000200)=[{0x6, 0xff, 0x7, 0x7fc00002}]}) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f0000000180)={0x0}) ioctl$SECCOMP_IOCTL_NOTIF_ADDFD(r0, 0x80082102, &(0x7f0000000080)={r1, 0x0, r0, 0xf3, 0x80000}) executing program 0: prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x0, 0x4, &(0x7f0000006680)) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x8031, 0xffffffffffffffff, 0x0) madvise(&(0x7f0000000000/0x600000)=nil, 0x600002, 0x9) ptrace$getregset(0x4205, 0x0, 0x200, 0x0) executing program 1: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'bridge0\x00', 0x0}) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000005c0)=ANY=[@ANYBLOB="780000001000830404000000fedbdf2500007400", @ANYRES32=r1, @ANYBLOB="0008000007500500580012800b0001006272696467650000480002800500190002000000050017"], 0x78}, 0x1, 0x0, 0x0, 0x800}, 0x0) executing program 2: r0 = socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000780)={&(0x7f00000007c0)=@newqdisc={0x78, 0x24, 0xd0f, 0x70bd2b, 0x0, {0x60, 0x0, 0x0, r2, {}, {0xffff, 0xffff}, {0x0, 0x4}}, [@qdisc_kind_options=@q_sfq={{0x8}, {0x4c, 0x2, {{0xd9, 0x4, 0x1, 0x4000}, 0x7d, 0x0, 0x4, 0x0, 0x4, 0xf, 0x10, 0x0, 0x0, 0x0, {0x6, 0x0, 0x6, 0x0, 0xfffffffd, 0x9}}}}]}, 0x78}}, 0x0) executing program 1: mmap(&(0x7f0000000000/0xfbe000)=nil, 0xfbe000, 0x2, 0x31, 0xffffffffffffffff, 0x0) remap_file_pages(&(0x7f00002ec000/0x200000)=nil, 0x200000, 0x0, 0x3, 0x0) remap_file_pages(&(0x7f000075d000/0x3000)=nil, 0x3000, 0x0, 0x7, 0x0) mbind(&(0x7f0000001000/0x800000)=nil, 0x800000, 0x4, 0x0, 0x0, 0x2) executing program 0: r0 = io_uring_setup(0x2a90, &(0x7f0000000240)={0x0, 0x86a1, 0x2, 0x3, 0x277}) r1 = syz_open_dev$dri(&(0x7f00000000c0), 0x1ff, 0x0) ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(r1, 0xc01064bd, &(0x7f00000006c0)={&(0x7f0000000680)='\x00', 0x1}) close_range(r0, 0xffffffffffffffff, 0x0) executing program 2: r0 = socket$inet_mptcp(0x2, 0x1, 0x106) bind$inet(r0, &(0x7f0000000040)={0x2, 0x4e21, @multicast2}, 0x10) connect$inet(r0, &(0x7f0000000080)={0x2, 0x4e21, @empty}, 0x10) setsockopt$inet_tcp_int(r0, 0x6, 0x19, &(0x7f00000000c0)=0x3, 0x4) executing program 1: syz_open_dev$evdev(&(0x7f0000000080), 0x2, 0x842) syz_open_dev$sndctrl(&(0x7f0000000040), 0x0, 0x0) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) pselect6(0x40, &(0x7f0000000100), 0x0, &(0x7f0000000240)={0x1f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3}, &(0x7f0000000280)={0x0, 0x3938700}, 0x0) executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) capset(&(0x7f0000a31000)={0x20080522}, &(0x7f0000000080)={0x0, 0x7ff, 0x0, 0x0, 0x9}) fchownat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0xffffffffffffffff, 0xee01, 0x1000) executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./debug\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000140)='debugfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000580)='./debug/ieee80211/phy0/netdev:wlan0/active_links\x00', 0x1, 0x0) pwrite64(r0, &(0x7f0000000080)="6a5b78118ac592cdd9ecd590575781205e23b6f858a112b4ef13f31831cbba3dda2697bd9e86dea138192b6c57757796a62585a68ca8d8cd0e0576392e4856ea97", 0x41, 0xffff) executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_int(r0, 0x107, 0xf, &(0x7f0000000240)=0x6, 0x4) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'erspan0\x00', 0x0}) sendto$packet(r0, &(0x7f0000000180)="0b032200eb1025120212475400f6a13bb1000000080086dd4803", 0x10300, 0x0, &(0x7f0000000140)={0x11, 0x0, r1}, 0x14) executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000002c0)={'bridge_slave_1\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)=@newqdisc={0x44, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r1, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_hfsc={{0x9}, {0x14, 0x2, @TCA_HFSC_FSC={0x10, 0x2, {0xd, 0xfffffffb, 0x7fffffff}}}}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000000}, 0x20040084) sendmsg$nl_route_sched(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000b00)=@newqdisc={0x458, 0x28, 0x4ee4e6a52ff56541, 0x5001, 0xfffffdfc, {0x0, 0x0, 0x0, r1, {0xfff3}, {0x0, 0xfff1}, {0x2, 0x8}}, [@qdisc_kind_options=@q_tbf={{0x8}, {0x408, 0x2, [@TCA_TBF_RTAB={0x404, 0x2, [0x80000001, 0x8001, 0x3, 0x0, 0x6, 0x4, 0x8, 0x9, 0x401, 0xfffffffc, 0x6, 0xfffffff7, 0x3, 0x3, 0x4, 0x3, 0x100, 0x8, 0xff, 0x80, 0x9, 0x8001, 0x80, 0x7, 0x101, 0xa46, 0xeb, 0x7ff, 0x7, 0x10001, 0x9, 0x6, 0x9c01, 0x7, 0x4, 0x0, 0xfaa, 0xc88, 0x6, 0x8d1, 0x1ff, 0x2, 0x1, 0x80000000, 0x6a, 0xffffffff, 0x7, 0x4, 0x3, 0x6, 0x0, 0x100, 0x4, 0x9, 0x8, 0x144, 0xd, 0x14574, 0x0, 0x7f, 0x7, 0x1, 0x314, 0x7, 0xe, 0xfccf, 0x2, 0x45, 0x7, 0x4, 0x2, 0x8, 0x5, 0x3, 0x1, 0x4, 0x1, 0x40, 0xb, 0x3ff, 0xfffffff9, 0x6, 0x9, 0x8, 0x80, 0x59b, 0x1, 0x2, 0x6, 0xc, 0x0, 0xfffffffa, 0x4, 0xba65, 0x4, 0x0, 0x70e, 0x9, 0xd, 0x1, 0x0, 0x7fffffff, 0x7fff, 0xfff, 0x4, 0x4, 0xac1, 0x5, 0x4, 0x9, 0x5, 0x9, 0x7, 0x5371, 0x709d7f5b, 0xa09a, 0xfffffffe, 0x4b8a, 0x9, 0x7, 0x4, 0x3, 0x8ad, 0x6, 0x4, 0x10001, 0xc0000000, 0x4, 0x7, 0xf, 0x86, 0x7, 0x3, 0x9, 0x9, 0x663, 0xfffffffd, 0xe2, 0x0, 0x4, 0x4, 0x6, 0xfc, 0x1, 0x9, 0x8, 0x7, 0x8001, 0x0, 0x4, 0x5, 0xfd, 0x90, 0xffff, 0x5, 0xfffeffff, 0x7, 0x9, 0x8e0e, 0x1, 0xe, 0x8, 0xd, 0x2, 0x5, 0x0, 0xb, 0x6, 0x4, 0x9, 0x9, 0x0, 0xc, 0xaa8, 0xcb1a, 0x7, 0xffffffff, 0x9, 0x2, 0x3, 0x9, 0x280, 0x0, 0x8, 0x9, 0x8, 0xfffffff9, 0x800, 0x18e, 0x5, 0x5, 0x1, 0x32, 0x6, 0x4f, 0x8, 0xfffffff9, 0x1, 0x0, 0x6, 0x1, 0x7, 0x8001, 0x7, 0x53f, 0x4, 0xd13b, 0xb, 0x6, 0xb, 0x100, 0x7, 0x5, 0x6, 0x1, 0x10001, 0x6, 0x4, 0x7, 0x82, 0xf0, 0x4, 0x3, 0x6, 0x4, 0x5, 0x400, 0x0, 0x0, 0x1000, 0x6, 0xc, 0x2, 0x1, 0x3, 0xc, 0x8, 0x80000001, 0x8, 0xa4eb, 0x7, 0x4, 0xffffffff, 0x1ff, 0x3ff, 0x3, 0x80, 0x3, 0x8001, 0x1, 0x8, 0xe1, 0xc, 0x5, 0x3, 0x95]}]}}, @TCA_RATE={0x6, 0x5, {0x0, 0x11}}, @qdisc_kind_options=@q_etf={{0x8}, {0x14, 0x2, @TCA_ETF_PARMS={0x10, 0x1, {0x0, 0xb, 0x3}}}}]}, 0x458}, 0x1, 0x0, 0x0, 0x40098}, 0x4004004) executing program 3: r0 = openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000240), 0x80080, 0x0) ioctl$SW_SYNC_IOC_CREATE_FENCE(r0, 0xc0285700, &(0x7f0000000100)={0xfffffff4, "5660359c3245d1c4231700007d48ed51e10000000000033c4ef043512d7e4100", 0xffffffffffffffff}) ioctl$SYNC_IOC_MERGE(r1, 0xc0303e03, &(0x7f00000001c0)={"3c24139ed44aec57f2000086923c44d445f248a8865700", r1, 0xffffffffffffffff}) ioctl$SYNC_IOC_FILE_INFO(r2, 0xc0383e04, &(0x7f00000004c0)={""/32, 0x0, 0x0, 0x1, 0x0, &(0x7f0000000280)=[{}]}) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000000c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) umount2(&(0x7f0000000000)='./file0\x00', 0x9) executing program 3: r0 = socket$unix(0x1, 0x1, 0x0) bind$unix(r0, &(0x7f0000003000)=@abs={0x1, 0x0, 0x4e20}, 0x3) r1 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/unix\x00') pread64(r1, &(0x7f0000000480)=""/177, 0xb1, 0xe0) executing program 0: r0 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x48283, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000100)={'\x00', 0x52d35ce30131f272}) ioctl$TUNSETOFFLOAD(r0, 0x400454c9, 0xb) ioctl$TUNGETFILTER(r0, 0x801054db, &(0x7f0000000000)=""/115) executing program 2: r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x3, 0x0, 0x81, 0x1ff, 0x1, 0x1}, 0x1c) recvmmsg$unix(r0, &(0x7f0000000540)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000001bc0)=""/4100, 0x1004}], 0x1}}], 0x47, 0x40012282, 0x0) sendmmsg(r0, &(0x7f00000030c0)=[{{0x0, 0xa9cc7003, &(0x7f0000000400)=[{&(0x7f00000000c0)="ee", 0x101d0}], 0x1}}], 0x400000000000181, 0x9200000000000000) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x500, 0x4) executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_int(r0, 0x29, 0x19, &(0x7f0000000000)=0x94b, 0x4) syz_emit_ethernet(0x6e, &(0x7f0000000440)={@broadcast, @random="9e4338bf2d14", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "00318e", 0x38, 0x3a, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @mcast2, {[], @time_exceed={0x2, 0x1, 0x0, 0x0, '\x00', {0x0, 0x6, "000006", 0xda34, 0x3a, 0x0, @mcast1, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x2d}}, [], "2037e07b610d272d"}}}}}}}, 0x0) recvmmsg(r0, &(0x7f0000001740)=[{{0x0, 0x0, 0x0}, 0x4}], 0x1, 0x2000, 0x0) executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f00000005c0)=[{0x6}]}) ioctl$FS_IOC_GETFSMAP(0xffffffffffffffff, 0xc0c0583b, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0502103, &(0x7f00000001c0)) executing program 3: r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x2002, 0x0) ioctl$SNDCTL_DSP_SETFMT(r0, 0xc0045005, &(0x7f0000001180)=0x2000000) mmap$dsp(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x3, 0x12, r0, 0x0) ioctl$SNDCTL_DSP_GETOPTR(r0, 0x5008, 0x0) executing program 3: syz_mount_image$vfat(&(0x7f0000000840), &(0x7f0000000080)='./bus\x00', 0x2, &(0x7f0000000b40)=ANY=[], 0x1, 0x307, &(0x7f0000001b40)="$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") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0, 0x0) r1 = fanotify_init(0x200, 0x0) fanotify_mark(r1, 0x39, 0x40000000, r0, 0x0) executing program 2: ioperm(0x0, 0x62ee, 0x2000000000000006) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r0 = socket$inet6(0xa, 0x802, 0x0) cachestat(r0, &(0x7f0000000000)={0x20000008264, 0xffffffff}, 0x0, 0xee) program crashed: INFO: task hung in do_get_write_access bisect: bisecting 24 programs bisect: split chunks (needed=false): <24> bisect: split chunk #0 of len 24 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=6m4s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4] detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) capset(&(0x7f0000a31000)={0x20080522}, &(0x7f0000000080)={0x0, 0x7ff, 0x0, 0x0, 0x9}) fchownat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0xffffffffffffffff, 0xee01, 0x1000) executing program 3: mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./debug\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000140)='debugfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000580)='./debug/ieee80211/phy0/netdev:wlan0/active_links\x00', 0x1, 0x0) pwrite64(r0, &(0x7f0000000080)="6a5b78118ac592cdd9ecd590575781205e23b6f858a112b4ef13f31831cbba3dda2697bd9e86dea138192b6c57757796a62585a68ca8d8cd0e0576392e4856ea97", 0x41, 0xffff) executing program 2: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_int(r0, 0x107, 0xf, &(0x7f0000000240)=0x6, 0x4) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'erspan0\x00', 0x0}) sendto$packet(r0, &(0x7f0000000180)="0b032200eb1025120212475400f6a13bb1000000080086dd4803", 0x10300, 0x0, &(0x7f0000000140)={0x11, 0x0, r1}, 0x14) executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000002c0)={'bridge_slave_1\x00', 0x0}) sendmsg$nl_route_sched(r0, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000140)=@newqdisc={0x44, 0x24, 0x4ee4e6a52ff56541, 0x70bd2a, 0xffffffff, {0x0, 0x0, 0x0, r1, {0x0, 0xfff1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_hfsc={{0x9}, {0x14, 0x2, @TCA_HFSC_FSC={0x10, 0x2, {0xd, 0xfffffffb, 0x7fffffff}}}}]}, 0x44}, 0x1, 0x0, 0x0, 0x4000000}, 0x20040084) sendmsg$nl_route_sched(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000b00)=@newqdisc={0x458, 0x28, 0x4ee4e6a52ff56541, 0x5001, 0xfffffdfc, {0x0, 0x0, 0x0, r1, {0xfff3}, {0x0, 0xfff1}, {0x2, 0x8}}, [@qdisc_kind_options=@q_tbf={{0x8}, {0x408, 0x2, [@TCA_TBF_RTAB={0x404, 0x2, [0x80000001, 0x8001, 0x3, 0x0, 0x6, 0x4, 0x8, 0x9, 0x401, 0xfffffffc, 0x6, 0xfffffff7, 0x3, 0x3, 0x4, 0x3, 0x100, 0x8, 0xff, 0x80, 0x9, 0x8001, 0x80, 0x7, 0x101, 0xa46, 0xeb, 0x7ff, 0x7, 0x10001, 0x9, 0x6, 0x9c01, 0x7, 0x4, 0x0, 0xfaa, 0xc88, 0x6, 0x8d1, 0x1ff, 0x2, 0x1, 0x80000000, 0x6a, 0xffffffff, 0x7, 0x4, 0x3, 0x6, 0x0, 0x100, 0x4, 0x9, 0x8, 0x144, 0xd, 0x14574, 0x0, 0x7f, 0x7, 0x1, 0x314, 0x7, 0xe, 0xfccf, 0x2, 0x45, 0x7, 0x4, 0x2, 0x8, 0x5, 0x3, 0x1, 0x4, 0x1, 0x40, 0xb, 0x3ff, 0xfffffff9, 0x6, 0x9, 0x8, 0x80, 0x59b, 0x1, 0x2, 0x6, 0xc, 0x0, 0xfffffffa, 0x4, 0xba65, 0x4, 0x0, 0x70e, 0x9, 0xd, 0x1, 0x0, 0x7fffffff, 0x7fff, 0xfff, 0x4, 0x4, 0xac1, 0x5, 0x4, 0x9, 0x5, 0x9, 0x7, 0x5371, 0x709d7f5b, 0xa09a, 0xfffffffe, 0x4b8a, 0x9, 0x7, 0x4, 0x3, 0x8ad, 0x6, 0x4, 0x10001, 0xc0000000, 0x4, 0x7, 0xf, 0x86, 0x7, 0x3, 0x9, 0x9, 0x663, 0xfffffffd, 0xe2, 0x0, 0x4, 0x4, 0x6, 0xfc, 0x1, 0x9, 0x8, 0x7, 0x8001, 0x0, 0x4, 0x5, 0xfd, 0x90, 0xffff, 0x5, 0xfffeffff, 0x7, 0x9, 0x8e0e, 0x1, 0xe, 0x8, 0xd, 0x2, 0x5, 0x0, 0xb, 0x6, 0x4, 0x9, 0x9, 0x0, 0xc, 0xaa8, 0xcb1a, 0x7, 0xffffffff, 0x9, 0x2, 0x3, 0x9, 0x280, 0x0, 0x8, 0x9, 0x8, 0xfffffff9, 0x800, 0x18e, 0x5, 0x5, 0x1, 0x32, 0x6, 0x4f, 0x8, 0xfffffff9, 0x1, 0x0, 0x6, 0x1, 0x7, 0x8001, 0x7, 0x53f, 0x4, 0xd13b, 0xb, 0x6, 0xb, 0x100, 0x7, 0x5, 0x6, 0x1, 0x10001, 0x6, 0x4, 0x7, 0x82, 0xf0, 0x4, 0x3, 0x6, 0x4, 0x5, 0x400, 0x0, 0x0, 0x1000, 0x6, 0xc, 0x2, 0x1, 0x3, 0xc, 0x8, 0x80000001, 0x8, 0xa4eb, 0x7, 0x4, 0xffffffff, 0x1ff, 0x3ff, 0x3, 0x80, 0x3, 0x8001, 0x1, 0x8, 0xe1, 0xc, 0x5, 0x3, 0x95]}]}}, @TCA_RATE={0x6, 0x5, {0x0, 0x11}}, @qdisc_kind_options=@q_etf={{0x8}, {0x14, 0x2, @TCA_ETF_PARMS={0x10, 0x1, {0x0, 0xb, 0x3}}}}]}, 0x458}, 0x1, 0x0, 0x0, 0x40098}, 0x4004004) executing program 3: r0 = openat$sw_sync(0xffffffffffffff9c, &(0x7f0000000240), 0x80080, 0x0) ioctl$SW_SYNC_IOC_CREATE_FENCE(r0, 0xc0285700, &(0x7f0000000100)={0xfffffff4, "5660359c3245d1c4231700007d48ed51e10000000000033c4ef043512d7e4100", 0xffffffffffffffff}) ioctl$SYNC_IOC_MERGE(r1, 0xc0303e03, &(0x7f00000001c0)={"3c24139ed44aec57f2000086923c44d445f248a8865700", r1, 0xffffffffffffffff}) ioctl$SYNC_IOC_FILE_INFO(r2, 0xc0383e04, &(0x7f00000004c0)={""/32, 0x0, 0x0, 0x1, 0x0, &(0x7f0000000280)=[{}]}) executing program 1: mkdirat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000180)='./file0\x00', &(0x7f0000000080)='sysfs\x00', 0x1214040, 0x0) mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000000c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) umount2(&(0x7f0000000000)='./file0\x00', 0x9) executing program 3: r0 = socket$unix(0x1, 0x1, 0x0) bind$unix(r0, &(0x7f0000003000)=@abs={0x1, 0x0, 0x4e20}, 0x3) r1 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/unix\x00') pread64(r1, &(0x7f0000000480)=""/177, 0xb1, 0xe0) executing program 0: r0 = openat$tun(0xffffffffffffff9c, &(0x7f00000000c0), 0x48283, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000100)={'\x00', 0x52d35ce30131f272}) ioctl$TUNSETOFFLOAD(r0, 0x400454c9, 0xb) ioctl$TUNGETFILTER(r0, 0x801054db, &(0x7f0000000000)=""/115) executing program 2: r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x3, 0x0, 0x81, 0x1ff, 0x1, 0x1}, 0x1c) recvmmsg$unix(r0, &(0x7f0000000540)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000001bc0)=""/4100, 0x1004}], 0x1}}], 0x47, 0x40012282, 0x0) sendmmsg(r0, &(0x7f00000030c0)=[{{0x0, 0xa9cc7003, &(0x7f0000000400)=[{&(0x7f00000000c0)="ee", 0x101d0}], 0x1}}], 0x400000000000181, 0x9200000000000000) 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, &(0x7f00000000c0)="02", 0x500, 0x4) executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_int(r0, 0x29, 0x19, &(0x7f0000000000)=0x94b, 0x4) syz_emit_ethernet(0x6e, &(0x7f0000000440)={@broadcast, @random="9e4338bf2d14", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "00318e", 0x38, 0x3a, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @mcast2, {[], @time_exceed={0x2, 0x1, 0x0, 0x0, '\x00', {0x0, 0x6, "000006", 0xda34, 0x3a, 0x0, @mcast1, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x2d}}, [], "2037e07b610d272d"}}}}}}}, 0x0) recvmmsg(r0, &(0x7f0000001740)=[{{0x0, 0x0, 0x0}, 0x4}], 0x1, 0x2000, 0x0) executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f00000005c0)=[{0x6}]}) ioctl$FS_IOC_GETFSMAP(0xffffffffffffffff, 0xc0c0583b, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0502103, &(0x7f00000001c0)) executing program 3: r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x2002, 0x0) ioctl$SNDCTL_DSP_SETFMT(r0, 0xc0045005, &(0x7f0000001180)=0x2000000) mmap$dsp(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x3, 0x12, r0, 0x0) ioctl$SNDCTL_DSP_GETOPTR(r0, 0x5008, 0x0) executing program 3: syz_mount_image$vfat(&(0x7f0000000840), &(0x7f0000000080)='./bus\x00', 0x2, &(0x7f0000000b40)=ANY=[], 0x1, 0x307, &(0x7f0000001b40)="$eJzs3M1rE1sYx/Enbd6a0iaLy71cLpd7uG4UYWjjXgjSohhQ2kasgjBtJxoyJiUTKhFp68qt+Ee4KN21u4K6cNuNO1du3HWhIGJR68hMZtq0nVSLnVTN9wPNnM6ZJ+dM88LvDHQ2rj68XS5aWlGvS09PTHpEkrIpknFaIg3nISLOzqaIxKXVopzqf/fy3/HJaxdz+fzImFKjuYkzWaXU4H9P7txb/v9Zvf/K6uBaQtYzNzbeZl+v/7n+98aXiVslS5UsVanWla6mqq/q8SnTUDMlq6wpddm2dctQpcrzSRG3v1rXnf6iWZ2dbSi9MjOQmq0ZlqX0SkOVjYaSqEitofSbeqmiNE1TAynBtySWxsb0nNtMHrp4OoQJ4YedT8mez2itltOdbd++YwtLnZsXAAD4WezK/0nlpP7FlvzvinhbZ8+Wbdut9W7+f78icmD+98PlWrxN/vfyvZ//TaOZ/y2j1uyPek/QNv/Xq6ru5P8o+f8QCjv5f5+VrU7PBuFw8n/K+/y67l9fHnIb5H8AAAAAAAAAAAAAAAAAAAAAAH4Fm7adtm077W/9n4T3L+H+78c9T4SD17+7jSuvoVRSxHwwV5griJix5s7t192QIUnLZ/f94Gm2Ry/kR7bvNvDUXPDqF+YKve6uXFFKYoohw5KWTHD9sGraXR+TVGt9VtLyR3B9NrA+LidPtNRrkpYX01IVU2bc9/VO/fywUucu5ffU97nHAQAAAADwO9DUtkzQ+l3TdvX7twJacI6S5vpc3PV1wPWBuIg46+uhfevzxPGdMAAAAAAAXchq3C3rpmnUOthIikgy9LGcswv/dPoOPmb+dNsuyXT+L9/hRrplj3/lqOPTiLYO6l94Cmmsvx49/nB0T3h29Z9PQV0fj26IwfZd3/HlEQvvewkAAADA0dsJ/UG9kUXn0X7T8WkBAAAAAAAAAAAAAAAAAAAAAAAAAAAAANBVwrvvWq83QvCdBQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIBu9DUAAP//5M4T/A==") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0, 0x0) r1 = fanotify_init(0x200, 0x0) fanotify_mark(r1, 0x39, 0x40000000, r0, 0x0) executing program 2: ioperm(0x0, 0x62ee, 0x2000000000000006) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r0 = socket$inet6(0xa, 0x802, 0x0) cachestat(r0, &(0x7f0000000000)={0x20000008264, 0xffffffff}, 0x0, 0xee) program crashed: INFO: task hung in __rq_qos_throttle bisect: the chunk can be dropped bisect: testing without sub-chunk 2/3 testing program (duration=6m2s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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] detailed listing: executing program 2: r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x3, 0x0, 0x81, 0x1ff, 0x1, 0x1}, 0x1c) recvmmsg$unix(r0, &(0x7f0000000540)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000001bc0)=""/4100, 0x1004}], 0x1}}], 0x47, 0x40012282, 0x0) sendmmsg(r0, &(0x7f00000030c0)=[{{0x0, 0xa9cc7003, &(0x7f0000000400)=[{&(0x7f00000000c0)="ee", 0x101d0}], 0x1}}], 0x400000000000181, 0x9200000000000000) 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, &(0x7f00000000c0)="02", 0x500, 0x4) executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_int(r0, 0x29, 0x19, &(0x7f0000000000)=0x94b, 0x4) syz_emit_ethernet(0x6e, &(0x7f0000000440)={@broadcast, @random="9e4338bf2d14", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "00318e", 0x38, 0x3a, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @mcast2, {[], @time_exceed={0x2, 0x1, 0x0, 0x0, '\x00', {0x0, 0x6, "000006", 0xda34, 0x3a, 0x0, @mcast1, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x2d}}, [], "2037e07b610d272d"}}}}}}}, 0x0) recvmmsg(r0, &(0x7f0000001740)=[{{0x0, 0x0, 0x0}, 0x4}], 0x1, 0x2000, 0x0) executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f00000005c0)=[{0x6}]}) ioctl$FS_IOC_GETFSMAP(0xffffffffffffffff, 0xc0c0583b, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0502103, &(0x7f00000001c0)) executing program 3: r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x2002, 0x0) ioctl$SNDCTL_DSP_SETFMT(r0, 0xc0045005, &(0x7f0000001180)=0x2000000) mmap$dsp(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x3, 0x12, r0, 0x0) ioctl$SNDCTL_DSP_GETOPTR(r0, 0x5008, 0x0) executing program 3: syz_mount_image$vfat(&(0x7f0000000840), &(0x7f0000000080)='./bus\x00', 0x2, &(0x7f0000000b40)=ANY=[], 0x1, 0x307, &(0x7f0000001b40)="$eJzs3M1rE1sYx/Enbd6a0iaLy71cLpd7uG4UYWjjXgjSohhQ2kasgjBtJxoyJiUTKhFp68qt+Ee4KN21u4K6cNuNO1du3HWhIGJR68hMZtq0nVSLnVTN9wPNnM6ZJ+dM88LvDHQ2rj68XS5aWlGvS09PTHpEkrIpknFaIg3nISLOzqaIxKXVopzqf/fy3/HJaxdz+fzImFKjuYkzWaXU4H9P7txb/v9Zvf/K6uBaQtYzNzbeZl+v/7n+98aXiVslS5UsVanWla6mqq/q8SnTUDMlq6wpddm2dctQpcrzSRG3v1rXnf6iWZ2dbSi9MjOQmq0ZlqX0SkOVjYaSqEitofSbeqmiNE1TAynBtySWxsb0nNtMHrp4OoQJ4YedT8mez2itltOdbd++YwtLnZsXAAD4WezK/0nlpP7FlvzvinhbZ8+Wbdut9W7+f78icmD+98PlWrxN/vfyvZ//TaOZ/y2j1uyPek/QNv/Xq6ru5P8o+f8QCjv5f5+VrU7PBuFw8n/K+/y67l9fHnIb5H8AAAAAAAAAAAAAAAAAAAAAAH4Fm7adtm077W/9n4T3L+H+78c9T4SD17+7jSuvoVRSxHwwV5griJix5s7t192QIUnLZ/f94Gm2Ry/kR7bvNvDUXPDqF+YKve6uXFFKYoohw5KWTHD9sGraXR+TVGt9VtLyR3B9NrA+LidPtNRrkpYX01IVU2bc9/VO/fywUucu5ffU97nHAQAAAADwO9DUtkzQ+l3TdvX7twJacI6S5vpc3PV1wPWBuIg46+uhfevzxPGdMAAAAAAAXchq3C3rpmnUOthIikgy9LGcswv/dPoOPmb+dNsuyXT+L9/hRrplj3/lqOPTiLYO6l94Cmmsvx49/nB0T3h29Z9PQV0fj26IwfZd3/HlEQvvewkAAADA0dsJ/UG9kUXn0X7T8WkBAAAAAAAAAAAAAAAAAAAAAAAAAAAAANBVwrvvWq83QvCdBQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIBu9DUAAP//5M4T/A==") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0, 0x0) r1 = fanotify_init(0x200, 0x0) fanotify_mark(r1, 0x39, 0x40000000, r0, 0x0) executing program 2: ioperm(0x0, 0x62ee, 0x2000000000000006) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r0 = socket$inet6(0xa, 0x802, 0x0) cachestat(r0, &(0x7f0000000000)={0x20000008264, 0xffffffff}, 0x0, 0xee) program crashed: INFO: task hung in do_get_write_access bisect: the chunk can be dropped bisect: testing without sub-chunk 3/3 bisect: split chunks (needed=true): <8> bisect: split chunk #0 of len 8 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m1s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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] detailed listing: executing program 1: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)) r0 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0xc, &(0x7f00000000c0)={0x1, &(0x7f00000005c0)=[{0x6}]}) ioctl$FS_IOC_GETFSMAP(0xffffffffffffffff, 0xc0c0583b, 0x0) ioctl$SECCOMP_IOCTL_NOTIF_SEND(r0, 0xc0502103, &(0x7f00000001c0)) executing program 3: r0 = openat$dsp(0xffffffffffffff9c, &(0x7f0000000000), 0x2002, 0x0) ioctl$SNDCTL_DSP_SETFMT(r0, 0xc0045005, &(0x7f0000001180)=0x2000000) mmap$dsp(&(0x7f0000ffc000/0x3000)=nil, 0x3000, 0x3, 0x12, r0, 0x0) ioctl$SNDCTL_DSP_GETOPTR(r0, 0x5008, 0x0) executing program 3: syz_mount_image$vfat(&(0x7f0000000840), &(0x7f0000000080)='./bus\x00', 0x2, &(0x7f0000000b40)=ANY=[], 0x1, 0x307, &(0x7f0000001b40)="$eJzs3M1rE1sYx/Enbd6a0iaLy71cLpd7uG4UYWjjXgjSohhQ2kasgjBtJxoyJiUTKhFp68qt+Ee4KN21u4K6cNuNO1du3HWhIGJR68hMZtq0nVSLnVTN9wPNnM6ZJ+dM88LvDHQ2rj68XS5aWlGvS09PTHpEkrIpknFaIg3nISLOzqaIxKXVopzqf/fy3/HJaxdz+fzImFKjuYkzWaXU4H9P7txb/v9Zvf/K6uBaQtYzNzbeZl+v/7n+98aXiVslS5UsVanWla6mqq/q8SnTUDMlq6wpddm2dctQpcrzSRG3v1rXnf6iWZ2dbSi9MjOQmq0ZlqX0SkOVjYaSqEitofSbeqmiNE1TAynBtySWxsb0nNtMHrp4OoQJ4YedT8mez2itltOdbd++YwtLnZsXAAD4WezK/0nlpP7FlvzvinhbZ8+Wbdut9W7+f78icmD+98PlWrxN/vfyvZ//TaOZ/y2j1uyPek/QNv/Xq6ru5P8o+f8QCjv5f5+VrU7PBuFw8n/K+/y67l9fHnIb5H8AAAAAAAAAAAAAAAAAAAAAAH4Fm7adtm077W/9n4T3L+H+78c9T4SD17+7jSuvoVRSxHwwV5griJix5s7t192QIUnLZ/f94Gm2Ry/kR7bvNvDUXPDqF+YKve6uXFFKYoohw5KWTHD9sGraXR+TVGt9VtLyR3B9NrA+LidPtNRrkpYX01IVU2bc9/VO/fywUucu5ffU97nHAQAAAADwO9DUtkzQ+l3TdvX7twJacI6S5vpc3PV1wPWBuIg46+uhfevzxPGdMAAAAAAAXchq3C3rpmnUOthIikgy9LGcswv/dPoOPmb+dNsuyXT+L9/hRrplj3/lqOPTiLYO6l94Cmmsvx49/nB0T3h29Z9PQV0fj26IwfZd3/HlEQvvewkAAADA0dsJ/UG9kUXn0X7T8WkBAAAAAAAAAAAAAAAAAAAAAAAAAAAAANBVwrvvWq83QvCdBQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIBu9DUAAP//5M4T/A==") r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000100)='.\x00', 0x0, 0x0) r1 = fanotify_init(0x200, 0x0) fanotify_mark(r1, 0x39, 0x40000000, r0, 0x0) executing program 2: ioperm(0x0, 0x62ee, 0x2000000000000006) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r0 = socket$inet6(0xa, 0x802, 0x0) cachestat(r0, &(0x7f0000000000)={0x20000008264, 0xffffffff}, 0x0, 0xee) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m1s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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] detailed listing: executing program 2: r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x3, 0x0, 0x81, 0x1ff, 0x1, 0x1}, 0x1c) recvmmsg$unix(r0, &(0x7f0000000540)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000001bc0)=""/4100, 0x1004}], 0x1}}], 0x47, 0x40012282, 0x0) sendmmsg(r0, &(0x7f00000030c0)=[{{0x0, 0xa9cc7003, &(0x7f0000000400)=[{&(0x7f00000000c0)="ee", 0x101d0}], 0x1}}], 0x400000000000181, 0x9200000000000000) 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, &(0x7f00000000c0)="02", 0x500, 0x4) executing program 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_int(r0, 0x29, 0x19, &(0x7f0000000000)=0x94b, 0x4) syz_emit_ethernet(0x6e, &(0x7f0000000440)={@broadcast, @random="9e4338bf2d14", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "00318e", 0x38, 0x3a, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @mcast2, {[], @time_exceed={0x2, 0x1, 0x0, 0x0, '\x00', {0x0, 0x6, "000006", 0xda34, 0x3a, 0x0, @mcast1, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x2d}}, [], "2037e07b610d272d"}}}}}}}, 0x0) recvmmsg(r0, &(0x7f0000001740)=[{{0x0, 0x0, 0x0}, 0x4}], 0x1, 0x2000, 0x0) executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) program crashed: INFO: task hung in __ext4_find_entry bisect: the chunk can be dropped bisect: split chunks (needed=true): <4> bisect: split chunk #0 of len 4 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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 3: r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_int(r0, 0x29, 0x19, &(0x7f0000000000)=0x94b, 0x4) syz_emit_ethernet(0x6e, &(0x7f0000000440)={@broadcast, @random="9e4338bf2d14", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, "00318e", 0x38, 0x3a, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @mcast2, {[], @time_exceed={0x2, 0x1, 0x0, 0x0, '\x00', {0x0, 0x6, "000006", 0xda34, 0x3a, 0x0, @mcast1, @ipv4={'\x00', '\xff\xff', @dev={0xac, 0x14, 0x14, 0x2d}}, [], "2037e07b610d272d"}}}}}}}, 0x0) recvmmsg(r0, &(0x7f0000001740)=[{{0x0, 0x0, 0x0}, 0x4}], 0x1, 0x2000, 0x0) executing program 0: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x10003, 0xffffffff, 0xd7c7, 0x401}, 0x10) write(r0, &(0x7f00000000c0)="240000001e005f0214fffffffffffff8070000000b00000000000000080009000b000000", 0x24) syz_usb_connect$uac2(0x5, 0x7b, &(0x7f00000001c0)=ANY=[@ANYBLOB="1201500200000040532b24004000010203010902690003012b4006080b020101032008090400000001012000092401008009090009090401000001022000090401010101022000090501091000320009082501023000010009040200000102200009040201010102"], &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0}) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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 2: r0 = socket(0x1e, 0x4, 0x0) setsockopt$packet_tx_ring(r0, 0x10f, 0x87, &(0x7f0000000140)=@req3={0x7813, 0x3, 0x0, 0x81, 0x1ff, 0x1, 0x1}, 0x1c) recvmmsg$unix(r0, &(0x7f0000000540)=[{{0x0, 0x0, &(0x7f0000000300)=[{&(0x7f0000001bc0)=""/4100, 0x1004}], 0x1}}], 0x47, 0x40012282, 0x0) sendmmsg(r0, &(0x7f00000030c0)=[{{0x0, 0xa9cc7003, &(0x7f0000000400)=[{&(0x7f00000000c0)="ee", 0x101d0}], 0x1}}], 0x400000000000181, 0x9200000000000000) 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, &(0x7f00000000c0)="02", 0x500, 0x4) program crashed: INFO: task hung in do_get_write_access bisect: the chunk can be dropped bisect: split chunks (needed=true): <2> bisect: split chunk #0 of len 2 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) 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): <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, &(0x7f00000000c0)="02", 0x500, 0x4) bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=9m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program crashed: INFO: task hung in __rq_qos_throttle bisect: concatenation succeeded found reproducer with 4 syscalls minimizing guilty program testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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 crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0)="02", 0x500, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, 0x4) program did not crash testing program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f00000000c0), 0x0, 0x4) program did not crash extracting C reproducer testing compiled C program (duration=6m6.627118212s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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=6m6.627118212s, {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=6m6.627118212s, {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 do_get_write_access testing compiled C program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in __rq_qos_throttle testing compiled C program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x500, 0x4) VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying program crashed: INFO: task hung in do_get_write_access validation run: crashed=true testing program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x500, 0x4) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true testing program (duration=6m6.627118212s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000040)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f00000000c0)="02", 0x500, 0x4) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true reproducing took 3h2m53.671429124s repro crashed as (corrupted=false): INFO: task syz.0.217:6135 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.217 state:D stack:27560 pid:6135 ppid:5891 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6701 schedule+0xbd/0x170 kernel/sched/core.c:6775 io_schedule+0x80/0xd0 kernel/sched/core.c:9024 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x9f/0x2c0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x13c/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x5c9/0xe00 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x10c/0x140 fs/jbd2/transaction.c:1231 __ext4_journal_get_write_access+0x208/0x6d0 fs/ext4/ext4_jbd2.c:241 ext4_reserve_inode_write+0x205/0x2a0 fs/ext4/inode.c:5945 __ext4_mark_inode_dirty+0x13f/0x720 fs/ext4/inode.c:6129 ext4_dirty_inode+0xcb/0x110 fs/ext4/inode.c:6166 __mark_inode_dirty+0x2cc/0xc90 fs/fs-writeback.c:2522 generic_update_time fs/inode.c:1981 [inline] inode_update_time fs/inode.c:1994 [inline] __file_update_time fs/inode.c:2180 [inline] file_update_time+0x187/0x1a0 fs/inode.c:2210 ext4_page_mkwrite+0x1f9/0x11a0 fs/ext4/inode.c:6284 do_page_mkwrite+0x153/0x3f0 mm/memory.c:2951 do_shared_fault mm/memory.c:4717 [inline] do_fault mm/memory.c:4779 [inline] do_pte_missing mm/memory.c:3689 [inline] handle_pte_fault mm/memory.c:5047 [inline] __handle_mm_fault mm/memory.c:5188 [inline] handle_mm_fault+0x1a2c/0x4a50 mm/memory.c:5353 do_user_addr_fault+0x736/0x12d0 arch/x86/mm/fault.c:1371 handle_page_fault arch/x86/mm/fault.c:1463 [inline] exc_page_fault+0x64/0x100 arch/x86/mm/fault.c:1516 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0x7f623326baa3 RSP: 002b:00007ffd1a459dd0 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b2ce24000 RSI: 0000000000040000 RDI: 00007f62335e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd1a45a060 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline] #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline] #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x290 kernel/locking/lockdep.c:6635 2 locks held by getty/5532: #0: ffff88802db160a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x428/0x1370 drivers/tty/n_tty.c:2217 3 locks held by syz-executor/5786: #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5380 [inline] #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5440 #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1633 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1737 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1e2/0x11a0 fs/ext4/inode.c:6283 #2: ffff88802d0fa990 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x1f3f/0x2170 fs/jbd2/transaction.c:448 3 locks held by syz.0.217/6135: #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5380 [inline] #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5440 #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1633 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1737 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1e2/0x11a0 fs/ext4/inode.c:6283 #2: ffff88802d0fa990 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x1f3f/0x2170 fs/jbd2/transaction.c:448 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 nmi_cpu_backtrace+0x3a6/0x3e0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x2f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xf59/0xfa0 kernel/hung_task.c:379 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0xf/0x10 arch/x86/kernel/paravirt.c:148 Code: 89 18 02 c3 cc cc cc cc cc cc cc f3 0f 1e fa 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 66 90 0f 00 2d 03 f6 36 00 fb f4 66 0f 1f 00 55 41 57 41 56 41 54 53 50 8b 2f eb 2c 89 cb 80 f9 RSP: 0018:ffffc90000187de0 EFLAGS: 000002c6 RAX: 3846d917c00f6d00 RBX: ffffffff81631e24 RCX: 3846d917c00f6d00 RDX: 0000000000000001 RSI: ffffffff8acacce0 RDI: ffffffff8b1d3ba0 RBP: ffffc90000187f20 R08: ffff8880b8f36b6b R09: 1ffff110171e6d6d R10: dffffc0000000000 R11: ffffed10171e6d6e R12: 1ffff92000030fc8 R13: dffffc0000000000 R14: 1ffff11003848780 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055eeffee5aa0 CR3: 000000000cf32000 CR4: 00000000003506e0 Call Trace: arch_safe_halt arch/x86/include/asm/paravirt.h:108 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:753 default_idle_call+0x6c/0xa0 kernel/sched/idle.c:97 cpuidle_idle_call kernel/sched/idle.c:178 [inline] do_idle+0x334/0x5c0 kernel/sched/idle.c:302 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:401 start_secondary+0xee/0xf0 arch/x86/kernel/smpboot.c:323 secondary_startup_64_no_verify+0x179/0x17b final repro crashed as (corrupted=false): INFO: task syz.0.217:6135 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.217 state:D stack:27560 pid:6135 ppid:5891 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6701 schedule+0xbd/0x170 kernel/sched/core.c:6775 io_schedule+0x80/0xd0 kernel/sched/core.c:9024 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x9f/0x2c0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x13c/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x5c9/0xe00 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x10c/0x140 fs/jbd2/transaction.c:1231 __ext4_journal_get_write_access+0x208/0x6d0 fs/ext4/ext4_jbd2.c:241 ext4_reserve_inode_write+0x205/0x2a0 fs/ext4/inode.c:5945 __ext4_mark_inode_dirty+0x13f/0x720 fs/ext4/inode.c:6129 ext4_dirty_inode+0xcb/0x110 fs/ext4/inode.c:6166 __mark_inode_dirty+0x2cc/0xc90 fs/fs-writeback.c:2522 generic_update_time fs/inode.c:1981 [inline] inode_update_time fs/inode.c:1994 [inline] __file_update_time fs/inode.c:2180 [inline] file_update_time+0x187/0x1a0 fs/inode.c:2210 ext4_page_mkwrite+0x1f9/0x11a0 fs/ext4/inode.c:6284 do_page_mkwrite+0x153/0x3f0 mm/memory.c:2951 do_shared_fault mm/memory.c:4717 [inline] do_fault mm/memory.c:4779 [inline] do_pte_missing mm/memory.c:3689 [inline] handle_pte_fault mm/memory.c:5047 [inline] __handle_mm_fault mm/memory.c:5188 [inline] handle_mm_fault+0x1a2c/0x4a50 mm/memory.c:5353 do_user_addr_fault+0x736/0x12d0 arch/x86/mm/fault.c:1371 handle_page_fault arch/x86/mm/fault.c:1463 [inline] exc_page_fault+0x64/0x100 arch/x86/mm/fault.c:1516 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0x7f623326baa3 RSP: 002b:00007ffd1a459dd0 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b2ce24000 RSI: 0000000000040000 RDI: 00007f62335e0708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd1a45a060 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline] #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline] #0: ffffffff8d1320e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x290 kernel/locking/lockdep.c:6635 2 locks held by getty/5532: #0: ffff88802db160a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x428/0x1370 drivers/tty/n_tty.c:2217 3 locks held by syz-executor/5786: #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5380 [inline] #0: ffff88807d260b20 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5440 #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1633 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1737 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1e2/0x11a0 fs/ext4/inode.c:6283 #2: ffff88802d0fa990 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x1f3f/0x2170 fs/jbd2/transaction.c:448 3 locks held by syz.0.217/6135: #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline] #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:5380 [inline] #0: ffff88802d0d3120 (&mm->mmap_lock){++++}-{3:3}, at: lock_mm_and_find_vma+0x32/0x2f0 mm/memory.c:5440 #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1633 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1737 [inline] #1: ffff88802d0f6510 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x1e2/0x11a0 fs/ext4/inode.c:6283 #2: ffff88802d0fa990 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x1f3f/0x2170 fs/jbd2/transaction.c:448 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 nmi_cpu_backtrace+0x3a6/0x3e0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x2f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xf59/0xfa0 kernel/hung_task.c:379 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:pv_native_safe_halt+0xf/0x10 arch/x86/kernel/paravirt.c:148 Code: 89 18 02 c3 cc cc cc cc cc cc cc f3 0f 1e fa 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 66 90 0f 00 2d 03 f6 36 00 fb f4 66 0f 1f 00 55 41 57 41 56 41 54 53 50 8b 2f eb 2c 89 cb 80 f9 RSP: 0018:ffffc90000187de0 EFLAGS: 000002c6 RAX: 3846d917c00f6d00 RBX: ffffffff81631e24 RCX: 3846d917c00f6d00 RDX: 0000000000000001 RSI: ffffffff8acacce0 RDI: ffffffff8b1d3ba0 RBP: ffffc90000187f20 R08: ffff8880b8f36b6b R09: 1ffff110171e6d6d R10: dffffc0000000000 R11: ffffed10171e6d6e R12: 1ffff92000030fc8 R13: dffffc0000000000 R14: 1ffff11003848780 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055eeffee5aa0 CR3: 000000000cf32000 CR4: 00000000003506e0 Call Trace: arch_safe_halt arch/x86/include/asm/paravirt.h:108 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:753 default_idle_call+0x6c/0xa0 kernel/sched/idle.c:97 cpuidle_idle_call kernel/sched/idle.c:178 [inline] do_idle+0x334/0x5c0 kernel/sched/idle.c:302 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:401 start_secondary+0xee/0xf0 arch/x86/kernel/smpboot.c:323 secondary_startup_64_no_verify+0x179/0x17b