Extracting prog: 57.431883786s Minimizing prog: 6m1.54737019s Simplifying prog options: 0s Extracting C: 21.323665267s Simplifying C: 2m51.687945675s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program crashed: KASAN: global-out-of-bounds Read in uevent_store single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) write(0xffffffffffffffff, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, 0x0, &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, 0x0, 0x0) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300), 0x0) program did not crash extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store simplifying C reproducer testing compiled C program (duration=30s, {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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false 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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false 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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false 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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false 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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing compiled C program (duration=30s, {Threaded:false Repeat:false 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-write program crashed: KASAN: global-out-of-bounds Read in uevent_store testing program (duration=30s, {Threaded:false Repeat:false 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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program crashed: KASAN: global-out-of-bounds Read in uevent_store validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false 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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program crashed: KASAN: global-out-of-bounds Read in uevent_store validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false 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-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./sys\x00', 0x9d) mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/acpi/devices/device:00/uevent\x00', 0x1, 0x0) write(r0, &(0x7f0000000300)="61646400b4e07fcf22169cf1972e948e8a7781d83e6204df331fa50a943ce733cc3b7fa9ac36ad1b70a8043d3d5d95163c325d390809d0abfb5d43cd893fa987a860fb56bfac8efe5e23d0c0bb026f68d80b80ac60abe0dd4dd47327821db79a41bee0ee68b0d5aa016e0313fbe20816433fe7aa84b9a8283c96fd3b3531", 0x7e) program crashed: KASAN: global-out-of-bounds Read in uevent_store validation run: crashed=true reproducing took 11m54.779485037s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: global-out-of-bounds in kobject_action_type lib/kobject_uevent.c:86 [inline] BUG: KASAN: global-out-of-bounds in kobject_synth_uevent+0x79d/0x7d0 lib/kobject_uevent.c:200 Read of size 1 at addr ffffffff8d723dde by task syz.0.17/5913 CPU: 0 UID: 0 PID: 5913 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x13d/0x4b0 mm/kasan/report.c:482 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595 kobject_action_type lib/kobject_uevent.c:86 [inline] kobject_synth_uevent+0x79d/0x7d0 lib/kobject_uevent.c:200 uevent_store+0x24/0x50 drivers/base/core.c:2847 dev_attr_store+0x58/0x80 drivers/base/core.c:2509 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf707efec Code: Unable to access opcode bytes at 0xf707efc2. RSP: 002b:00000000ffd1c9dc EFLAGS: 00000292 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000300 RDX: 000000000000007e RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 The buggy address belongs to the variable: uevent_helper_sysctl_table+0x11e/0x2a0 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd723 flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000002000 ffffea000035c8c8 ffffea000035c8c8 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner info is not present (never set?) Memory state around the buggy address: ffffffff8d723c80: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 ffffffff8d723d00: f9 f9 f9 f9 00 07 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 >ffffffff8d723d80: f9 f9 f9 f9 07 f9 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 ^ ffffffff8d723e00: f9 f9 f9 f9 05 f9 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 ffffffff8d723e80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 05 f9 f9 f9 ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: global-out-of-bounds in kobject_action_type lib/kobject_uevent.c:86 [inline] BUG: KASAN: global-out-of-bounds in kobject_synth_uevent+0x79d/0x7d0 lib/kobject_uevent.c:200 Read of size 1 at addr ffffffff8d723dde by task syz.0.17/5913 CPU: 0 UID: 0 PID: 5913 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x13d/0x4b0 mm/kasan/report.c:482 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595 kobject_action_type lib/kobject_uevent.c:86 [inline] kobject_synth_uevent+0x79d/0x7d0 lib/kobject_uevent.c:200 uevent_store+0x24/0x50 drivers/base/core.c:2847 dev_attr_store+0x58/0x80 drivers/base/core.c:2509 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf707efec Code: Unable to access opcode bytes at 0xf707efc2. RSP: 002b:00000000ffd1c9dc EFLAGS: 00000292 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000300 RDX: 000000000000007e RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 The buggy address belongs to the variable: uevent_helper_sysctl_table+0x11e/0x2a0 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xd723 flags: 0xfff00000002000(reserved|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000002000 ffffea000035c8c8 ffffea000035c8c8 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner info is not present (never set?) Memory state around the buggy address: ffffffff8d723c80: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 ffffffff8d723d00: f9 f9 f9 f9 00 07 f9 f9 f9 f9 f9 f9 04 f9 f9 f9 >ffffffff8d723d80: f9 f9 f9 f9 07 f9 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 ^ ffffffff8d723e00: f9 f9 f9 f9 05 f9 f9 f9 f9 f9 f9 f9 07 f9 f9 f9 ffffffff8d723e80: f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 05 f9 f9 f9 ==================================================================