Extracting prog: 1m38.410190393s Minimizing prog: 7m4.033593996s Simplifying prog options: 0s Extracting C: 43.974438053s Simplifying C: 4m39.629861053s 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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program crashed: KASAN: use-after-free Write in steam_input_open single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0) syz_usb_control_io(0xffffffffffffffff, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000002300), 0x0, 0x0) program did not crash testing program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x40, 0x28de, 0x1102, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0xd0, 0x0, [{{0x9, 0x4, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0x1, 0xf9, 0x1, {0x22, 0x5}}, {{{0x9, 0x5, 0x81, 0x3, 0x0, 0x0, 0x0, 0x50}}}}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, &(0x7f0000000040)={0x2c, &(0x7f0000000200)=ANY=[@ANYBLOB="200b4000000028b1"], 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(0x0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=35.814240753s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_open simplifying C reproducer testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_open testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program did not crash testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program did not crash testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_open testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_open testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_close a never seen crash title: KASAN: use-after-free Write in steam_input_close, ignore testing compiled C program (duration=35.814240753s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_open_dev$hidraw program crashed: KASAN: use-after-free Write in steam_input_open reproducing took 14m6.048100385s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] BUG: KASAN: use-after-free in mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298 Write of size 8 at addr ffff88810fbe8c40 by task udevd/284 CPU: 0 PID: 284 Comm: udevd Not tainted 5.10.237-syzkaller-00309-g7e2543346ff7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0xe2/0x130 mm/kasan/report.c:452 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x280/0x290 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298 steam_input_open+0x91/0x160 drivers/hid/hid-steam.c:297 input_open_device+0x14c/0x2a0 drivers/input/input.c:635 evdev_open_device drivers/input/evdev.c:400 [inline] evdev_open+0x4d2/0x5e0 drivers/input/evdev.c:487 chrdev_open+0x597/0x670 fs/char_dev.c:414 do_dentry_open+0x793/0x1090 fs/open.c:819 vfs_open+0x73/0x80 fs/open.c:942 do_open fs/namei.c:3391 [inline] path_openat+0x27ad/0x3160 fs/namei.c:3509 do_filp_open+0x1b3/0x3e0 fs/namei.c:3536 do_sys_openat2+0x14c/0x6d0 fs/open.c:1217 do_sys_open fs/open.c:1233 [inline] __do_sys_openat fs/open.c:1249 [inline] __se_sys_openat fs/open.c:1244 [inline] __x64_sys_openat+0x136/0x160 fs/open.c:1244 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f17622e49a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fffd6316140 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f17622e49a4 RDX: 0000000000080000 RSI: 0000562f6398fce0 RDI: 00000000ffffff9c RBP: 0000562f6398fce0 R08: 0000562f63998548 R09: 00007f17623bfb10 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 00007fffd6316308 R14: 0000000000000000 R15: 0000562f4ebd6ed5 Allocated by task 0: (stack is not available) Freed by task 282: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4a/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1595 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1621 slab_free mm/slub.c:3203 [inline] kfree+0xc0/0x270 mm/slub.c:4191 release_nodes+0x753/0x7d0 drivers/base/devres.c:524 devres_release_all+0x7c/0xa0 drivers/base/devres.c:545 __device_release_driver drivers/base/dd.c:1190 [inline] device_release_driver_internal+0x4cb/0x750 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535 device_del+0x696/0xed0 drivers/base/core.c:3452 hid_remove_device drivers/hid/hid-core.c:2503 [inline] hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2522 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1445 usb_unbind_interface+0x212/0x8c0 drivers/usb/core/driver.c:459 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x4bc/0x750 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535 device_del+0x696/0xed0 drivers/base/core.c:3452 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1411 usb_disconnect+0x31e/0x850 drivers/usb/core/hub.c:2282 hub_port_connect drivers/usb/core/hub.c:5308 [inline] hub_port_connect_change drivers/usb/core/hub.c:5609 [inline] port_event drivers/usb/core/hub.c:5759 [inline] hub_event+0x1912/0x4120 drivers/usb/core/hub.c:5841 process_one_work+0x6e1/0xba0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd56/0x13b0 kernel/workqueue.c:2449 kthread+0x346/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the object at ffff88810fbe8c00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 64 bytes inside of 512-byte region [ffff88810fbe8c00, ffff88810fbe8e00) The buggy address belongs to the page: page:ffffea00043efa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fbe8 head:ffffea00043efa00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 ffffea00043ea000 0000000500000005 ffff888100043080 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 97, ts 4561638589, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x179/0x180 mm/page_alloc.c:2462 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5349 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1808 [inline] new_slab+0x84/0x3f0 mm/slub.c:1869 new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc+0x2a6/0x450 mm/slub.c:2791 __slab_alloc+0x63/0xa0 mm/slub.c:2831 slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] __kmalloc_track_caller+0x1ef/0x320 mm/slub.c:4536 __kmalloc_reserve net/core/skbuff.c:144 [inline] __alloc_skb+0xdc/0x520 net/core/skbuff.c:212 alloc_skb include/linux/skbuff.h:1126 [inline] alloc_skb_with_frags+0xa2/0x560 net/core/skbuff.c:5993 sock_alloc_send_pskb+0x853/0x980 net/core/sock.c:2388 unix_dgram_sendmsg+0x5f4/0x17d0 net/unix/af_unix.c:1725 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] sock_write_iter+0x29c/0x380 net/socket.c:1018 call_write_iter include/linux/fs.h:2058 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x725/0xd60 fs/read_write.c:605 ksys_write+0x140/0x240 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:667 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 page_owner free stack trace missing Memory state around the buggy address: ffff88810fbe8b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88810fbe8b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88810fbe8c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810fbe8c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810fbe8d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] BUG: KASAN: use-after-free in mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298 Write of size 8 at addr ffff88810fbe8c40 by task udevd/284 CPU: 0 PID: 284 Comm: udevd Not tainted 5.10.237-syzkaller-00309-g7e2543346ff7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0xe2/0x130 mm/kasan/report.c:452 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x280/0x290 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] mutex_lock+0x7f/0xe0 kernel/locking/mutex.c:298 steam_input_open+0x91/0x160 drivers/hid/hid-steam.c:297 input_open_device+0x14c/0x2a0 drivers/input/input.c:635 evdev_open_device drivers/input/evdev.c:400 [inline] evdev_open+0x4d2/0x5e0 drivers/input/evdev.c:487 chrdev_open+0x597/0x670 fs/char_dev.c:414 do_dentry_open+0x793/0x1090 fs/open.c:819 vfs_open+0x73/0x80 fs/open.c:942 do_open fs/namei.c:3391 [inline] path_openat+0x27ad/0x3160 fs/namei.c:3509 do_filp_open+0x1b3/0x3e0 fs/namei.c:3536 do_sys_openat2+0x14c/0x6d0 fs/open.c:1217 do_sys_open fs/open.c:1233 [inline] __do_sys_openat fs/open.c:1249 [inline] __se_sys_openat fs/open.c:1244 [inline] __x64_sys_openat+0x136/0x160 fs/open.c:1244 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f17622e49a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fffd6316140 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f17622e49a4 RDX: 0000000000080000 RSI: 0000562f6398fce0 RDI: 00000000ffffff9c RBP: 0000562f6398fce0 R08: 0000562f63998548 R09: 00007f17623bfb10 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 00007fffd6316308 R14: 0000000000000000 R15: 0000562f4ebd6ed5 Allocated by task 0: (stack is not available) Freed by task 282: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4a/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1595 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1621 slab_free mm/slub.c:3203 [inline] kfree+0xc0/0x270 mm/slub.c:4191 release_nodes+0x753/0x7d0 drivers/base/devres.c:524 devres_release_all+0x7c/0xa0 drivers/base/devres.c:545 __device_release_driver drivers/base/dd.c:1190 [inline] device_release_driver_internal+0x4cb/0x750 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535 device_del+0x696/0xed0 drivers/base/core.c:3452 hid_remove_device drivers/hid/hid-core.c:2503 [inline] hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2522 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1445 usb_unbind_interface+0x212/0x8c0 drivers/usb/core/driver.c:459 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x4bc/0x750 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2dd/0x340 drivers/base/bus.c:535 device_del+0x696/0xed0 drivers/base/core.c:3452 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1411 usb_disconnect+0x31e/0x850 drivers/usb/core/hub.c:2282 hub_port_connect drivers/usb/core/hub.c:5308 [inline] hub_port_connect_change drivers/usb/core/hub.c:5609 [inline] port_event drivers/usb/core/hub.c:5759 [inline] hub_event+0x1912/0x4120 drivers/usb/core/hub.c:5841 process_one_work+0x6e1/0xba0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd56/0x13b0 kernel/workqueue.c:2449 kthread+0x346/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the object at ffff88810fbe8c00 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 64 bytes inside of 512-byte region [ffff88810fbe8c00, ffff88810fbe8e00) The buggy address belongs to the page: page:ffffea00043efa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fbe8 head:ffffea00043efa00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 ffffea00043ea000 0000000500000005 ffff888100043080 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 97, ts 4561638589, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x179/0x180 mm/page_alloc.c:2462 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5349 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1808 [inline] new_slab+0x84/0x3f0 mm/slub.c:1869 new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc+0x2a6/0x450 mm/slub.c:2791 __slab_alloc+0x63/0xa0 mm/slub.c:2831 slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] __kmalloc_track_caller+0x1ef/0x320 mm/slub.c:4536 __kmalloc_reserve net/core/skbuff.c:144 [inline] __alloc_skb+0xdc/0x520 net/core/skbuff.c:212 alloc_skb include/linux/skbuff.h:1126 [inline] alloc_skb_with_frags+0xa2/0x560 net/core/skbuff.c:5993 sock_alloc_send_pskb+0x853/0x980 net/core/sock.c:2388 unix_dgram_sendmsg+0x5f4/0x17d0 net/unix/af_unix.c:1725 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] sock_write_iter+0x29c/0x380 net/socket.c:1018 call_write_iter include/linux/fs.h:2058 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x725/0xd60 fs/read_write.c:605 ksys_write+0x140/0x240 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:667 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 page_owner free stack trace missing Memory state around the buggy address: ffff88810fbe8b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88810fbe8b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88810fbe8c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810fbe8c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810fbe8d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read hid 0003:28DE:1102.001F: No HID_FEATURE_REPORT submitted - nothing to read