Extracting prog: 1m15.400079313s Minimizing prog: 51.41µs Simplifying prog options: 1m44.385128682s Extracting C: 33.972410381s Simplifying C: 4m55.610695786s 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra single: successfully extracted reproducer found reproducer with 1 syscalls minimizing guilty program extracting C reproducer testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash simplifying guilty program options testing program (duration=30s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra extracting C reproducer testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra simplifying C reproducer 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=30s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing compiled C program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 program did not crash testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$eJzs281rXFUbAPDn3mQm7duPpH37frRWjRYhKCZNWrULN0oLIhUFXdRlTKYldNpIE8XWYlMRV4IUdS0uRf8CdyKIuhLcunIlhaLdtHUVuTf3JpM0k4R8zNjO7wd35px7z809T879OHPOTAAdqz97SSJ2RsSvEdE7l11coH/u7fbNy2N3dl4eS2J29tU/krzcrZuXx8qi5X47isxAGpF+kBQHWWzq4qWzo/V67UKRH5o+9+bQ1MVLT759bvRM7Uzt/MixY0ePDD/z9MhTmxJnFtetA+9NHtz/wuvXXho7de2NH7/O6ruz2N4Yx2bpzwL/cza3dNtjm32wNtuVv/bkr0l3myvDmnVFRNZclfz6742uWGi83jjxflsrB2yp7NnU03zzzCxwH0tirSUrDfcM4N5XPuizz7/l0oJuxz/GjefmPgBlcd8ulrkt3ZEWZSrzn283X39EnJr56/NsiS0ahwAAaPTR2Gcnq9ET79756sWs79E7vyWN/+bvvy2aEeqLiD2fnIi9EfHviNgXEf+JyMv+LyL+v8H63N3/Sa9v8E+uKOv/PVvMbS3u/5W9v+jrKnK78vgryemJeu1wROyOiIGo9GT54RWO8e3xXz5utq2x/5ct2fHLvmBRj+vdSwboxkenR6OykagX3LgacaB7ufiT+ZmArPX3R8SB+b3WNMGzu0xMPP7lwWaFVo+/ib61VmNls19k4c1k8c/EkvhLSeP85MRd85ND26JeOzxUnhV3++nnD19pdvx1x79JbtTm3hvaf2mRvqRxvnZqc4+/zvM/rSav5fPM1WLO8Z3R6ekLwxHV5GSerxZl8/UjC/uW+bJ8dv4PHFr++t9b7JPF/0BEZCfxgxHxUEQ8XNT9kYh4NCIOrRDjD8+vHn+kbWr/qxHjy97/5s//Je1/8dLZ8ta4sGbFRNfZ779pdvy1tf/RPDVQrMnvf6tYrjrdy1R5vf83AAAAuJek+Xfgk3RwPp2mg4Nz3+HfF/9K65NT00+cnnzr/Pjcd+X7opKWI129xXhofaJeG05mir9YSY5HvTZSDNGV46VHImJPRHzatT3PD45N1sfbHDt0uh1Nrv/M713N99vWshoCW2j7smtHqi2vCNAGS+fR08XZKy+HmwHcr/xeGzrXKtd/2qp6AK3n+Q+da7nr/8qS/ApzAcA9zPMfOld5/Rvlhw6TftfuGgBtpP8PHWnVH+/niaTJL+q3LLGtcU115cLVVlasFYk1NsoGEj3r3z2iTKRt/0dJbGGi3XcmAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAzfF3AAAA///N+te0") program did not crash validation run: crashed=false testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$eJzs281rXFUbAPDn3mQm7duPpH37frRWjRYhKCZNWrULN0oLIhUFXdRlTKYldNpIE8XWYlMRV4IUdS0uRf8CdyKIuhLcunIlhaLdtHUVuTf3JpM0k4R8zNjO7wd35px7z809T879OHPOTAAdqz97SSJ2RsSvEdE7l11coH/u7fbNy2N3dl4eS2J29tU/krzcrZuXx8qi5X47isxAGpF+kBQHWWzq4qWzo/V67UKRH5o+9+bQ1MVLT759bvRM7Uzt/MixY0ePDD/z9MhTmxJnFtetA+9NHtz/wuvXXho7de2NH7/O6ruz2N4Yx2bpzwL/cza3dNtjm32wNtuVv/bkr0l3myvDmnVFRNZclfz6742uWGi83jjxflsrB2yp7NnU03zzzCxwH0tirSUrDfcM4N5XPuizz7/l0oJuxz/GjefmPgBlcd8ulrkt3ZEWZSrzn283X39EnJr56/NsiS0ahwAAaPTR2Gcnq9ET79756sWs79E7vyWN/+bvvy2aEeqLiD2fnIi9EfHviNgXEf+JyMv+LyL+v8H63N3/Sa9v8E+uKOv/PVvMbS3u/5W9v+jrKnK78vgryemJeu1wROyOiIGo9GT54RWO8e3xXz5utq2x/5ct2fHLvmBRj+vdSwboxkenR6OykagX3LgacaB7ufiT+ZmArPX3R8SB+b3WNMGzu0xMPP7lwWaFVo+/ib61VmNls19k4c1k8c/EkvhLSeP85MRd85ND26JeOzxUnhV3++nnD19pdvx1x79JbtTm3hvaf2mRvqRxvnZqc4+/zvM/rSav5fPM1WLO8Z3R6ekLwxHV5GSerxZl8/UjC/uW+bJ8dv4PHFr++t9b7JPF/0BEZCfxgxHxUEQ8XNT9kYh4NCIOrRDjD8+vHn+kbWr/qxHjy97/5s//Je1/8dLZ8ta4sGbFRNfZ779pdvy1tf/RPDVQrMnvf6tYrjrdy1R5vf83AAAAuJek+Xfgk3RwPp2mg4Nz3+HfF/9K65NT00+cnnzr/Pjcd+X7opKWI129xXhofaJeG05mir9YSY5HvTZSDNGV46VHImJPRHzatT3PD45N1sfbHDt0uh1Nrv/M713N99vWshoCW2j7smtHqi2vCNAGS+fR08XZKy+HmwHcr/xeGzrXKtd/2qp6AK3n+Q+da7nr/8qS/ApzAcA9zPMfOld5/Rvlhw6TftfuGgBtpP8PHWnVH+/niaTJL+q3LLGtcU115cLVVlasFYk1NsoGEj3r3z2iTKRt/0dJbGGi3XcmAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAzfF3AAAA///N+te0") program crashed: KASAN: null-ptr-deref Write in do_page_cache_ra validation run: crashed=true testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4 detailed listing: executing program 0: syz_mount_image$ext4(&(0x7f00000009c0)='ext4\x00', &(0x7f0000000040)='./file0\x00', 0x800718, &(0x7f0000000300)={[{@nodioread_nolock}, {@data_err_ignore}, {@debug_want_extra_isize={'debug_want_extra_isize', 0x3d, 0x5c}}, {@noquota}, {@resgid}, {@inlinecrypt}, {@errors_remount}]}, 0x4, 0x4a4, &(0x7f0000000a00)="$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") program did not crash validation run: crashed=false reproducing took 16m35.078290502s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:87 [inline] BUG: KASAN: null-ptr-deref in set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] BUG: KASAN: null-ptr-deref in do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Write of size 8 at addr 0000000000000000 by task udevd/418 CPU: 0 PID: 418 Comm: udevd Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_report+0x3d/0x60 mm/kasan/report.c:423 kasan_report+0x122/0x150 mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:87 [inline] set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fefd9ca7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007fff35fbd590 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fefda35f880 RCX: 00007fefd9ca7407 RDX: 0000000000000200 RSI: 00007fefda346000 RDI: 0000000000000009 RBP: 0000558d9aa52790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000020000 R14: 0000558d9aa5f038 R15: 00007fefda42439c ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000003 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 418 Comm: udevd Tainted: G B W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 dc 1c d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000b27878 EFLAGS: 00010246 RAX: ffff8881188dbc00 RBX: 0000000000000020 RCX: ffff8881188dbcc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b278c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 000000000000001f R14: 0000000000000000 R15: ffff88810b733a50 FS: 00007fefda35f880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000120fa8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fefd9ca7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007fff35fbd590 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fefda35f880 RCX: 00007fefd9ca7407 RDX: 0000000000000200 RSI: 00007fefda346000 RDI: 0000000000000009 RBP: 0000558d9aa52790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000020000 R14: 0000558d9aa5f038 R15: 00007fefda42439c Modules linked in: CR2: 0000000000000003 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 dc 1c d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000b27878 EFLAGS: 00010246 RAX: ffff8881188dbc00 RBX: 0000000000000020 RCX: ffff8881188dbcc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b278c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 000000000000001f R14: 0000000000000000 R15: ffff88810b733a50 FS: 00007fefda35f880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000120fa8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 72 10 jb 0x18 8: e8 dc 1c d2 ff call 0xffd21ce9 d: 49 83 ee 01 sub $0x1,%r14 11: 73 78 jae 0x8b 13: e9 87 00 00 00 jmp 0x9f 18: 49 89 c4 mov %rax,%r12 1b: 48 89 c7 mov %rax,%rdi 1e: be 08 00 00 00 mov $0x8,%esi 23: e8 d1 ba 17 00 call 0x17baf9 * 28: f0 41 80 4c 24 03 10 lock orb $0x10,0x3(%r12) <-- trapping instruction 2f: 4c 89 e7 mov %r12,%rdi 32: 48 83 c7 34 add $0x34,%rdi 36: be 04 00 00 00 mov $0x4,%esi 3b: e8 .byte 0xe8 3c: b9 .byte 0xb9 3d: ba .byte 0xba final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:87 [inline] BUG: KASAN: null-ptr-deref in set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] BUG: KASAN: null-ptr-deref in do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Write of size 8 at addr 0000000000000000 by task udevd/418 CPU: 0 PID: 418 Comm: udevd Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_report+0x3d/0x60 mm/kasan/report.c:423 kasan_report+0x122/0x150 mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_write include/linux/instrumented.h:87 [inline] set_bit include/asm-generic/bitops/instrumented-atomic.h:28 [inline] do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fefd9ca7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007fff35fbd590 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fefda35f880 RCX: 00007fefd9ca7407 RDX: 0000000000000200 RSI: 00007fefda346000 RDI: 0000000000000009 RBP: 0000558d9aa52790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000020000 R14: 0000558d9aa5f038 R15: 00007fefda42439c ================================================================== BUG: kernel NULL pointer dereference, address: 0000000000000003 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 418 Comm: udevd Tainted: G B W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 dc 1c d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000b27878 EFLAGS: 00010246 RAX: ffff8881188dbc00 RBX: 0000000000000020 RCX: ffff8881188dbcc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b278c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 000000000000001f R14: 0000000000000000 R15: ffff88810b733a50 FS: 00007fefda35f880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000120fa8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: force_page_cache_ra mm/readahead.c:360 [inline] page_cache_sync_ra+0x32b/0x3d0 mm/readahead.c:751 page_cache_sync_readahead include/linux/pagemap.h:1259 [inline] filemap_get_pages mm/filemap.c:2706 [inline] filemap_read+0x6b6/0x23c0 mm/filemap.c:2801 blkdev_read_iter+0x439/0x580 block/fops.c:668 call_read_iter include/linux/fs.h:2276 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x46e/0x930 fs/read_write.c:470 ksys_read+0x14a/0x260 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:621 x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:1 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fefd9ca7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007fff35fbd590 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007fefda35f880 RCX: 00007fefd9ca7407 RDX: 0000000000000200 RSI: 00007fefda346000 RDI: 0000000000000009 RBP: 0000558d9aa52790 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000020000 R14: 0000558d9aa5f038 R15: 00007fefda42439c Modules linked in: CR2: 0000000000000003 ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_set_bit include/linux/instrumented.h:87 [inline] RIP: 0010:set_bit include/asm-generic/bitops/instrumented-atomic.h:29 [inline] RIP: 0010:do_page_cache_ra+0x18f/0x230 mm/readahead.c:324 Code: fd ff 48 3d 01 f0 ff ff 72 10 e8 dc 1c d2 ff 49 83 ee 01 73 78 e9 87 00 00 00 49 89 c4 48 89 c7 be 08 00 00 00 e8 d1 ba 17 00 41 80 4c 24 03 10 4c 89 e7 48 83 c7 34 be 04 00 00 00 e8 b9 ba RSP: 0018:ffffc90000b27878 EFLAGS: 00010246 RAX: ffff8881188dbc00 RBX: 0000000000000020 RCX: ffff8881188dbcc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000b278c8 R08: ffffffff87b777e7 R09: 1ffffffff0f6eefc R10: dffffc0000000000 R11: fffffbfff0f6eefd R12: 0000000000000000 R13: 000000000000001f R14: 0000000000000000 R15: ffff88810b733a50 FS: 00007fefda35f880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000003 CR3: 0000000120fa8000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 72 10 jb 0x18 8: e8 dc 1c d2 ff call 0xffd21ce9 d: 49 83 ee 01 sub $0x1,%r14 11: 73 78 jae 0x8b 13: e9 87 00 00 00 jmp 0x9f 18: 49 89 c4 mov %rax,%r12 1b: 48 89 c7 mov %rax,%rdi 1e: be 08 00 00 00 mov $0x8,%esi 23: e8 d1 ba 17 00 call 0x17baf9 * 28: f0 41 80 4c 24 03 10 lock orb $0x10,0x3(%r12) <-- trapping instruction 2f: 4c 89 e7 mov %r12,%rdi 32: 48 83 c7 34 add $0x34,%rdi 36: be 04 00 00 00 mov $0x4,%esi 3b: e8 .byte 0xe8 3c: b9 .byte 0xb9 3d: ba .byte 0xba