Extracting prog: 3m35.774207766s Minimizing prog: 55m51.869023704s Simplifying prog options: 0s Extracting C: 37.696968874s Simplifying C: 14m1.331243375s 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) program did not crash single: failed to extract reproducer single: executing 1 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)) 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}}): ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(0xffffffffffffffff, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(0xffffffffffffffff, 0xc00464b4, &(0x7f0000000040)={r0}) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(0x0, 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, 0x0) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, 0x0) program did not crash extracting C reproducer testing compiled C 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_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle simplifying C reproducer testing compiled C program (duration=6m0s, {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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing compiled C program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle testing program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle validation run: crashed=true testing program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle validation run: crashed=true testing program (duration=6m0s, {Threaded:true 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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-ioctl$DRM_IOCTL_MODE_DESTROY_DUMB detailed listing: executing program 0: r0 = syz_open_dev$dri(&(0x7f0000000180), 0x1, 0x0) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f00000029c0)={0x6, 0x8000005, 0x9, 0x0, 0x0}) ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064d2, &(0x7f0000000080)={0x1, 0x80, 0x3}) (async) ioctl$DRM_IOCTL_MODE_DESTROY_DUMB(r0, 0xc00464b4, &(0x7f0000000040)={r1}) program crashed: KASAN: slab-use-after-free Read in drm_gem_object_release_handle validation run: crashed=true reproducing took 1h18m33.325983126s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in drm_gem_object_release_handle+0x4b/0x1e0 drivers/gpu/drm/drm_gem.c:374 Read of size 8 at addr ffff888037705a78 by task syz.0.28/6062 CPU: 1 UID: 0 PID: 6062 Comm: syz.0.28 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 drm_gem_object_release_handle+0x4b/0x1e0 drivers/gpu/drm/drm_gem.c:374 idr_for_each+0x1c6/0x2a0 lib/idr.c:210 drm_gem_release+0x28/0x40 drivers/gpu/drm/drm_gem.c:1106 drm_file_free+0x729/0xa00 drivers/gpu/drm/drm_file.c:261 drm_close_helper drivers/gpu/drm/drm_file.c:290 [inline] drm_release+0x2de/0x3f0 drivers/gpu/drm/drm_file.c:438 __fput+0x44f/0xa60 fs/file_table.c:473 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa88339c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe18518438 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffe18518520 RCX: 00007fa88339c819 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00000000000196b4 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2fe20000 R11: 0000000000000246 R12: 00007ffe18518560 R13: 00007fa88361609c R14: 00000000000196e9 R15: 00007fa883616090 Allocated by task 6063: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5412 kmalloc_noprof include/linux/slab.h:950 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] __drm_gem_shmem_create+0xc4/0x2e0 drivers/gpu/drm/drm_gem_shmem_helper.c:130 drm_gem_shmem_create drivers/gpu/drm/drm_gem_shmem_helper.c:157 [inline] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:464 [inline] drm_gem_shmem_dumb_create+0x72/0x120 drivers/gpu/drm/drm_gem_shmem_helper.c:553 drm_mode_create_dumb drivers/gpu/drm/drm_dumb_buffers.c:227 [inline] drm_mode_create_dumb_ioctl+0x2bd/0x340 drivers/gpu/drm/drm_dumb_buffers.c:236 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 6064: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2689 [inline] slab_free mm/slub.c:6242 [inline] kfree+0x1c5/0x640 mm/slub.c:6557 drm_gem_object_release_handle+0xc2/0x1e0 drivers/gpu/drm/drm_gem.c:385 drm_gem_handle_delete+0x7b/0xb0 drivers/gpu/drm/drm_gem.c:413 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888037705800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 632 bytes inside of freed 1024-byte region [ffff888037705800, ffff888037705c00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888037702000 pfn:0x37700 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000240 ffff88813fe34dc0 ffff88813fe2f888 ffffea0001fdfe10 raw: ffff888037702000 000000080010000f 00000000f5000000 0000000000000000 head: 00fff00000000240 ffff88813fe34dc0 ffff88813fe2f888 ffffea0001fdfe10 head: ffff888037702000 000000080010000f 00000000f5000000 0000000000000000 head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5763, tgid 5763 (dhcpcd-run-hook), ts 68079648282, free_ts 68008443707 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 alloc_slab_page mm/slub.c:3278 [inline] allocate_slab+0x77/0x660 mm/slub.c:3467 new_slab mm/slub.c:3525 [inline] refill_objects+0x339/0x3d0 mm/slub.c:7247 refill_sheaf mm/slub.c:2816 [inline] __pcs_replace_empty_main+0x321/0x720 mm/slub.c:4651 alloc_from_pcs mm/slub.c:4749 [inline] slab_alloc_node mm/slub.c:4883 [inline] __do_kmalloc_node mm/slub.c:5291 [inline] __kmalloc_noprof+0x474/0x760 mm/slub.c:5304 kmalloc_noprof include/linux/slab.h:954 [inline] load_elf_phdrs fs/binfmt_elf.c:540 [inline] load_elf_binary+0x30f/0x2980 fs/binfmt_elf.c:869 search_binary_handler fs/exec.c:1664 [inline] exec_binprm fs/exec.c:1696 [inline] bprm_execve+0x956/0x1450 fs/exec.c:1748 do_execveat_common+0x50d/0x690 fs/exec.c:1846 __do_sys_execve fs/exec.c:1930 [inline] __se_sys_execve fs/exec.c:1924 [inline] __x64_sys_execve+0x97/0xc0 fs/exec.c:1924 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5760 tgid 5760 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 __slab_free+0x274/0x2c0 mm/slub.c:5605 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4569 [inline] slab_alloc_node mm/slub.c:4898 [inline] kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4905 vm_area_dup+0x2b/0x680 mm/vma_init.c:123 __split_vma+0x1dc/0xa40 mm/vma.c:516 vms_gather_munmap_vmas+0x32d/0x1380 mm/vma.c:1427 __mmap_setup mm/vma.c:2439 [inline] __mmap_region mm/vma.c:2753 [inline] mmap_region+0x856/0x2280 mm/vma.c:2856 do_mmap+0xc39/0x10c0 mm/mmap.c:560 vm_mmap_pgoff+0x2c9/0x4f0 mm/util.c:581 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:606 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888037705900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888037705980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888037705a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888037705a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888037705b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in drm_gem_object_release_handle+0x4b/0x1e0 drivers/gpu/drm/drm_gem.c:374 Read of size 8 at addr ffff888037705a78 by task syz.0.28/6062 CPU: 1 UID: 0 PID: 6062 Comm: syz.0.28 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 drm_gem_object_release_handle+0x4b/0x1e0 drivers/gpu/drm/drm_gem.c:374 idr_for_each+0x1c6/0x2a0 lib/idr.c:210 drm_gem_release+0x28/0x40 drivers/gpu/drm/drm_gem.c:1106 drm_file_free+0x729/0xa00 drivers/gpu/drm/drm_file.c:261 drm_close_helper drivers/gpu/drm/drm_file.c:290 [inline] drm_release+0x2de/0x3f0 drivers/gpu/drm/drm_file.c:438 __fput+0x44f/0xa60 fs/file_table.c:473 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:328 [inline] do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa88339c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe18518438 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffe18518520 RCX: 00007fa88339c819 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00000000000196b4 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2fe20000 R11: 0000000000000246 R12: 00007ffe18518560 R13: 00007fa88361609c R14: 00000000000196e9 R15: 00007fa883616090 Allocated by task 6063: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5412 kmalloc_noprof include/linux/slab.h:950 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] __drm_gem_shmem_create+0xc4/0x2e0 drivers/gpu/drm/drm_gem_shmem_helper.c:130 drm_gem_shmem_create drivers/gpu/drm/drm_gem_shmem_helper.c:157 [inline] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:464 [inline] drm_gem_shmem_dumb_create+0x72/0x120 drivers/gpu/drm/drm_gem_shmem_helper.c:553 drm_mode_create_dumb drivers/gpu/drm/drm_dumb_buffers.c:227 [inline] drm_mode_create_dumb_ioctl+0x2bd/0x340 drivers/gpu/drm/drm_dumb_buffers.c:236 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 6064: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2689 [inline] slab_free mm/slub.c:6242 [inline] kfree+0x1c5/0x640 mm/slub.c:6557 drm_gem_object_release_handle+0xc2/0x1e0 drivers/gpu/drm/drm_gem.c:385 drm_gem_handle_delete+0x7b/0xb0 drivers/gpu/drm/drm_gem.c:413 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888037705800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 632 bytes inside of freed 1024-byte region [ffff888037705800, ffff888037705c00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888037702000 pfn:0x37700 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000240 ffff88813fe34dc0 ffff88813fe2f888 ffffea0001fdfe10 raw: ffff888037702000 000000080010000f 00000000f5000000 0000000000000000 head: 00fff00000000240 ffff88813fe34dc0 ffff88813fe2f888 ffffea0001fdfe10 head: ffff888037702000 000000080010000f 00000000f5000000 0000000000000000 head: 00fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5763, tgid 5763 (dhcpcd-run-hook), ts 68079648282, free_ts 68008443707 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1858 prep_new_page mm/page_alloc.c:1866 [inline] get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226 alloc_slab_page mm/slub.c:3278 [inline] allocate_slab+0x77/0x660 mm/slub.c:3467 new_slab mm/slub.c:3525 [inline] refill_objects+0x339/0x3d0 mm/slub.c:7247 refill_sheaf mm/slub.c:2816 [inline] __pcs_replace_empty_main+0x321/0x720 mm/slub.c:4651 alloc_from_pcs mm/slub.c:4749 [inline] slab_alloc_node mm/slub.c:4883 [inline] __do_kmalloc_node mm/slub.c:5291 [inline] __kmalloc_noprof+0x474/0x760 mm/slub.c:5304 kmalloc_noprof include/linux/slab.h:954 [inline] load_elf_phdrs fs/binfmt_elf.c:540 [inline] load_elf_binary+0x30f/0x2980 fs/binfmt_elf.c:869 search_binary_handler fs/exec.c:1664 [inline] exec_binprm fs/exec.c:1696 [inline] bprm_execve+0x956/0x1450 fs/exec.c:1748 do_execveat_common+0x50d/0x690 fs/exec.c:1846 __do_sys_execve fs/exec.c:1930 [inline] __se_sys_execve fs/exec.c:1924 [inline] __x64_sys_execve+0x97/0xc0 fs/exec.c:1924 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5760 tgid 5760 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 __slab_free+0x274/0x2c0 mm/slub.c:5605 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4569 [inline] slab_alloc_node mm/slub.c:4898 [inline] kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4905 vm_area_dup+0x2b/0x680 mm/vma_init.c:123 __split_vma+0x1dc/0xa40 mm/vma.c:516 vms_gather_munmap_vmas+0x32d/0x1380 mm/vma.c:1427 __mmap_setup mm/vma.c:2439 [inline] __mmap_region mm/vma.c:2753 [inline] mmap_region+0x856/0x2280 mm/vma.c:2856 do_mmap+0xc39/0x10c0 mm/mmap.c:560 vm_mmap_pgoff+0x2c9/0x4f0 mm/util.c:581 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:606 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff888037705900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888037705980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888037705a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888037705a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888037705b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================