Extracting prog: 1m35.958229184s
Minimizing prog: 14m5.778775702s
Simplifying prog options: 0s
Extracting C: 30.699825245s
Simplifying C: 11m2.440409305s


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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program crashed: KASAN: use-after-free Read in ext4_find_extent
program crashed: KASAN: use-after-free Read in ext4_find_extent
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
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$ext4-openat-pwrite64-creat-mount-openat-openat-write
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r1, &(0x7f0000000100)='?', 0x1)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$eJzs3c1vG2UaAPDHdpMmaXb7satV25W2lbpS90ON86FVk929cAIOlRCVuIBUQuKGEieOYqc0UQ8p3HrggEAgIQ7c+Qu40BMVEuIMd8QBFUEJEiAhGc3YTvPl4KI0RpnfT5p4Zl5nnveN9byZeWfGE0BmnU1+5CIGI+LTiDjaWNz8hrONl7X7N6eSKRf1+uVvcun7kuXWW1u/dyQiViOiLyKefjzihdz2uNXlldnJcrm02Fwu1uYWitXllQvX5iZnSjOl+ZHxixMT48NjoxN71tbbr710+9IHT/a+/8Or9+6+/tGHSbUGm2Ub27GXGk3vieMb1h2KiP8/imBdUGi2p7/bFeE3ST6/P0XEuTT/j0Yh/TSBLKjX6/Wf64fbFa/WgQMrn+4D5/JDEdGYz+eHhhr78H+OgXy5Uq39+2plaX66sa98LHryV6+VS8PNY4Vj0ZNLlkfS+QfLo1uWxyLSfeA3Cv3p8tBUpTy9v10dsMWRZv73N/P/+0Ij/4GM2PmQv+1BAXCAGPKD7JL/kF3yH7JL/kN2yX/ILvkP2fXQ+V94NPUA9p///5Bd8h+yS/5DJj116VIy1Vv3v09fX16arVy/MF2qzg7NLU0NTVUWF4ZmKpWZ9J6duV/bXrlSWRj5TyzdKNZK1VqxurxyZa6yNF+7kt7Xf6XUsy+tAjpx/Mydz3MRsfrf/nRK9DbL5CocbPV6Lrp9DzLQHc7kQXYZ+oPscowP7PAVvZv0tStY2Pu6APsj3+0KAF1z/pTzf5BVxv8hu4z/Q3bZxweM/0P2GP+H7Bps8/yvP2x4dtdwRPwxIj4r9BxuPesLOAjyX+Ui8sn+//mjfx/cWtqb+7EQ0ZOeE3z5nctv3Zis1RZHkvXfpqcOkvW1t5vrR7vSAKBDrTxt5TEAkF1r929Otab9jPv1Y42LELbHP9Qcm+xLz1EOrOU2XauQ26NrF1ZvRcTJneLnms87b5z5GFgrbIt/ovmaa2wire+h9Lnp+xP/1Ib4f9sQ//Qu8Xofom5w0N1J+p/hnfIvn+Z0rOff5v5ncI+unWjf/+XX+79Cm/7vTIcxXnz3lS/bxr8VcXrH+K14fWmsrfGTup3vLHzu3nPP/KVdYf29xnZ2ir++gYgo1uYWitXllQvp98jNlOZHxi9OTIwPj41OFNMx6mJrpHq7/5385O5u7R94EL8/Ijpqf7Lun521P37668fPnt0l/j/O7fz5n9glflLRf3UY/7vRL55vV5bEn27z98/vEj9ZN9Zh/OqbT3iWOAD8jlSXV2Yny+XSohkzZsysz3S7ZwIetQdJ3+2aAAAAAAAAAAAAAJ3aj8uJu91GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAICD4JcAAAD///3C05Q=")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
write(0xffffffffffffffff, &(0x7f0000000100)='?', 0x1)
sendfile(0xffffffffffffffff, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r1, &(0x7f0000000100)='?', 0x1)
sendfile(r1, 0xffffffffffffffff, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r1, &(0x7f0000000100)='?', 0x1)
sendfile(r1, r0, 0x0, 0x3ffff)

program did not crash
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$ext4-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
pwrite64(0xffffffffffffffff, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r1, &(0x7f0000000100)='?', 0x1)
sendfile(r1, r0, 0x0, 0x3ffff)

program did not crash
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}}): openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, 0x0, 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, 0x0, 0x0, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0), 0x0, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(0x0, 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(0x0, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, 0x0, 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, 0x0, 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, 0x0, 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, 0x0, 0x0)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100), 0x0)
sendfile(r2, r1, 0x0, 0x3ffff)

program did not crash
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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in ext4_find_extent
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in ext4_find_extent
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: slab-out-of-bounds Read in ext4_find_extent
a never seen crash title: KASAN: slab-out-of-bounds Read in ext4_find_extent, ignore
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in __crc32c_le_base
a never seen crash title: KASAN: use-after-free Read in __crc32c_le_base, ignore
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in ext4_find_extent
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in ext4_find_extent
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program crashed: KASAN: use-after-free Read in ext4_find_extent
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true 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$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$eJzs3c1vG2UaAPDHdpMmaXb7satV25W2lbpS90ON86FVk929cAIOlRCVuIBUQuKGEieOYqc0UQ8p3HrggEAgIQ7c+Qu40BMVEuIMd8QBFUEJEiAhGc3YTvPl4KI0RpnfT5p4Zl5nnveN9byZeWfGE0BmnU1+5CIGI+LTiDjaWNz8hrONl7X7N6eSKRf1+uVvcun7kuXWW1u/dyQiViOiLyKefjzihdz2uNXlldnJcrm02Fwu1uYWitXllQvX5iZnSjOl+ZHxixMT48NjoxN71tbbr710+9IHT/a+/8Or9+6+/tGHSbUGm2Ub27GXGk3vieMb1h2KiP8/imBdUGi2p7/bFeE3ST6/P0XEuTT/j0Yh/TSBLKjX6/Wf64fbFa/WgQMrn+4D5/JDEdGYz+eHhhr78H+OgXy5Uq39+2plaX66sa98LHryV6+VS8PNY4Vj0ZNLlkfS+QfLo1uWxyLSfeA3Cv3p8tBUpTy9v10dsMWRZv73N/P/+0Ij/4GM2PmQv+1BAXCAGPKD7JL/kF3yH7JL/kN2yX/ILvkP2fXQ+V94NPUA9p///5Bd8h+yS/5DJj116VIy1Vv3v09fX16arVy/MF2qzg7NLU0NTVUWF4ZmKpWZ9J6duV/bXrlSWRj5TyzdKNZK1VqxurxyZa6yNF+7kt7Xf6XUsy+tAjpx/Mydz3MRsfrf/nRK9DbL5CocbPV6Lrp9DzLQHc7kQXYZ+oPscowP7PAVvZv0tStY2Pu6APsj3+0KAF1z/pTzf5BVxv8hu4z/Q3bZxweM/0P2GP+H7Bps8/yvP2x4dtdwRPwxIj4r9BxuPesLOAjyX+Ui8sn+//mjfx/cWtqb+7EQ0ZOeE3z5nctv3Zis1RZHkvXfpqcOkvW1t5vrR7vSAKBDrTxt5TEAkF1r929Otab9jPv1Y42LELbHP9Qcm+xLz1EOrOU2XauQ26NrF1ZvRcTJneLnms87b5z5GFgrbIt/ovmaa2wire+h9Lnp+xP/1Ib4f9sQ//Qu8Xofom5w0N1J+p/hnfIvn+Z0rOff5v5ncI+unWjf/+XX+79Cm/7vTIcxXnz3lS/bxr8VcXrH+K14fWmsrfGTup3vLHzu3nPP/KVdYf29xnZ2ir++gYgo1uYWitXllQvp98jNlOZHxi9OTIwPj41OFNMx6mJrpHq7/5385O5u7R94EL8/Ijpqf7Lun521P37668fPnt0l/j/O7fz5n9glflLRf3UY/7vRL55vV5bEn27z98/vEj9ZN9Zh/OqbT3iWOAD8jlSXV2Yny+XSohkzZsysz3S7ZwIetQdJ3+2aAAAAAAAAAAAAAJ3aj8uJu91GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAICD4JcAAAD///3C05Q=")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program crashed: KASAN: use-after-free Read in ext4_find_extent
validation run: crashed=true
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program crashed: KASAN: use-after-free Read in ext4_find_extent
validation run: crashed=true
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat-pwrite64-creat-mount-openat-openat-write-sendfile
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000240)={[{@oldalloc}, {@dioread_nolock}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x40)
pwrite64(r0, &(0x7f00000000c0)='a', 0x200000c1, 0x9000)
creat(&(0x7f0000000580)='./bus\x00', 0x9e)
mount(&(0x7f0000000380)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1084, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./bus\x00', 0x8840, 0xa2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x12)
write(r2, &(0x7f0000000100)='?', 0x1)
sendfile(r2, r1, 0x0, 0x3ffff)

program crashed: KASAN: use-after-free Read in ext4_find_extent
validation run: crashed=true
reproducing took 29m24.397398767s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
BUG: KASAN: use-after-free in ext4_find_extent+0xbfb/0xe30 fs/ext4/extents.c:953
Read of size 4 at addr ffff88812f4d6380 by task kworker/u4:6/432

CPU: 1 PID: 432 Comm: kworker/u4:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: writeback wb_workfn (flush-7:1)
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
 ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
 ext4_find_extent+0xbfb/0xe30 fs/ext4/extents.c:953
 ext4_ext_map_blocks+0x20c/0x60e0 fs/ext4/extents.c:4187
 ext4_map_blocks+0x9d1/0x1a80 fs/ext4/inode.c:681
 mpage_map_one_extent fs/ext4/inode.c:2437 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2490 [inline]
 ext4_writepages+0x13eb/0x30a0 fs/ext4/inode.c:2858
 do_writepages+0x3ab/0x600 mm/page-writeback.c:2494
 __writeback_single_inode+0xd9/0xb10 fs/fs-writeback.c:1622
 writeback_sb_inodes+0x9fd/0x1610 fs/fs-writeback.c:1913
 wb_writeback+0x3eb/0x990 fs/fs-writeback.c:2089
 wb_do_writeback fs/fs-writeback.c:2236 [inline]
 wb_workfn+0x378/0xeb0 fs/fs-writeback.c:2276
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Allocated by task 379:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:380 [inline]
 __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:389
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 kmalloc_trace+0x40/0xb0 mm/slab_common.c:1033
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4097 [inline]
 fib6_nh_init+0x913/0x2070 net/ipv6/route.c:3670
 ip6_route_info_create+0xa32/0x14d0 net/ipv6/route.c:3851
 addrconf_f6i_alloc+0x19c/0x3f0 net/ipv6/route.c:4603
 ipv6_add_addr+0x447/0xe80 net/ipv6/addrconf.c:1125
 inet6_addr_add+0x45d/0x9c0 net/ipv6/addrconf.c:3039
 inet6_rtm_newaddr+0x74a/0xa10 net/ipv6/addrconf.c:4999
 rtnetlink_rcv_msg+0xb28/0xde0 net/core/rtnetlink.c:6154
 netlink_rcv_skb+0x200/0x450 net/netlink/af_netlink.c:2526
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6172
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x8c1/0xa60 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8b9/0xbd0 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 __sys_sendto+0x4ac/0x660 net/socket.c:2143
 __do_sys_sendto net/socket.c:2155 [inline]
 __se_sys_sendto net/socket.c:2151 [inline]
 __x64_sys_sendto+0xe5/0x100 net/socket.c:2151
 x64_sys_call+0x83/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:45
 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

Freed by task 8:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 ref_tracker_dir_exit+0x193/0x4d0 lib/ref_tracker.c:27
 free_netdev+0x27d/0x490 net/core/dev.c:10873
 netdev_run_todo+0xac6/0xc30 net/core/dev.c:10514
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:147
 ip_tunnel_delete_nets+0x34b/0x390 net/ipv4/ip_tunnel.c:1140
 vti_exit_batch_net+0x22/0x30 net/ipv4/ip_vti.c:515
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x630/0xb10 net/core/net_namespace.c:604
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88812f4d6380
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff88812f4d6380, ffff88812f4d63a0)

The buggy address belongs to the physical page:
page:ffffea0004bd3580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12f4d6
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea0004b83b00 dead000000000002 ffff888100042600
raw: 0000000000000000 0000000000400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 6, tgid 6 (kworker/0:0), ts 48884886840, free_ts 47912657255
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2673
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2680
 get_page_from_freelist+0x2ca9/0x2d20 mm/page_alloc.c:4587
 __alloc_pages+0x1fa/0x610 mm/page_alloc.c:5931
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3e0 mm/slub.c:2020
 ___slab_alloc+0x70f/0xb70 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 __kmem_cache_alloc_node+0x204/0x2d0 mm/slub.c:3423
 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_hold include/linux/netdevice.h:4114 [inline]
 dst_init+0xc4/0x3d0 net/core/dst.c:52
 dst_alloc+0x191/0x1e0 net/core/dst.c:96
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3312
 mld_sendpack+0x623/0xda0 net/ipv6/mcast.c:1814
 mld_send_cr net/ipv6/mcast.c:2126 [inline]
 mld_ifc_work+0x83b/0xc20 net/ipv6/mcast.c:2658
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1581 [inline]
 free_pcp_prepare mm/page_alloc.c:1655 [inline]
 free_unref_page_prepare+0x81b/0x820 mm/page_alloc.c:3622
 free_unref_page+0x93/0x530 mm/page_alloc.c:3720
 free_the_page mm/page_alloc.c:863 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:6021
 __vunmap+0xa3c/0xc00 mm/vmalloc.c:2739
 __vfree mm/vmalloc.c:2788 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2819
 kcov_put kernel/kcov.c:437 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:533
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xb0d/0x29f0 kernel/exit.c:896
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1040
 get_signal+0x167c/0x1700 kernel/signal.c:2904
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303

Memory state around the buggy address:
 ffff88812f4d6280: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812f4d6300: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff88812f4d6380: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
                   ^
 ffff88812f4d6400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812f4d6480: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
==================================================================
EXT4-fs error (device loop1): ext4_map_blocks:747: inode #15: block 5991479377949: comm kworker/u4:6: lblock 36 mapped to illegal pblock 5991479377949 (length 28)
EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 117
EXT4-fs (loop1): This should not happen!! Data will be lost

EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs (loop8): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 117
EXT4-fs (loop8): This should not happen!! Data will be lost

IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
__quota_error: 6 callbacks suppressed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
EXT4-fs (loop7): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 28
EXT4-fs (loop7): This should not happen!! Data will be lost

EXT4-fs (loop7): Total free blocks count 0
EXT4-fs (loop7): Free/Dirty block details
EXT4-fs (loop7): free_blocks=12
EXT4-fs (loop7): dirty_blocks=0
EXT4-fs (loop7): Block reservation details
EXT4-fs (loop7): i_reserved_data_blocks=0
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
bridge0: port 2(bridge_slave_1) entered blocking state
bridge0: port 2(bridge_slave_1) entered forwarding state

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
BUG: KASAN: use-after-free in ext4_find_extent+0xbfb/0xe30 fs/ext4/extents.c:953
Read of size 4 at addr ffff88812f4d6380 by task kworker/u4:6/432

CPU: 1 PID: 432 Comm: kworker/u4:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: writeback wb_workfn (flush-7:1)
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x71/0x200 mm/kasan/report.c:316
 print_report+0x4a/0x60 mm/kasan/report.c:420
 kasan_report+0x122/0x150 mm/kasan/report.c:524
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:350
 ext4_ext_binsearch fs/ext4/extents.c:837 [inline]
 ext4_find_extent+0xbfb/0xe30 fs/ext4/extents.c:953
 ext4_ext_map_blocks+0x20c/0x60e0 fs/ext4/extents.c:4187
 ext4_map_blocks+0x9d1/0x1a80 fs/ext4/inode.c:681
 mpage_map_one_extent fs/ext4/inode.c:2437 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2490 [inline]
 ext4_writepages+0x13eb/0x30a0 fs/ext4/inode.c:2858
 do_writepages+0x3ab/0x600 mm/page-writeback.c:2494
 __writeback_single_inode+0xd9/0xb10 fs/fs-writeback.c:1622
 writeback_sb_inodes+0x9fd/0x1610 fs/fs-writeback.c:1913
 wb_writeback+0x3eb/0x990 fs/fs-writeback.c:2089
 wb_do_writeback fs/fs-writeback.c:2236 [inline]
 wb_workfn+0x378/0xeb0 fs/fs-writeback.c:2276
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Allocated by task 379:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:380 [inline]
 __kasan_kmalloc+0x95/0xb0 mm/kasan/common.c:389
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 kmalloc_trace+0x40/0xb0 mm/slab_common.c:1033
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4097 [inline]
 fib6_nh_init+0x913/0x2070 net/ipv6/route.c:3670
 ip6_route_info_create+0xa32/0x14d0 net/ipv6/route.c:3851
 addrconf_f6i_alloc+0x19c/0x3f0 net/ipv6/route.c:4603
 ipv6_add_addr+0x447/0xe80 net/ipv6/addrconf.c:1125
 inet6_addr_add+0x45d/0x9c0 net/ipv6/addrconf.c:3039
 inet6_rtm_newaddr+0x74a/0xa10 net/ipv6/addrconf.c:4999
 rtnetlink_rcv_msg+0xb28/0xde0 net/core/rtnetlink.c:6154
 netlink_rcv_skb+0x200/0x450 net/netlink/af_netlink.c:2526
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:6172
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x8c1/0xa60 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8b9/0xbd0 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 __sys_sendto+0x4ac/0x660 net/socket.c:2143
 __do_sys_sendto net/socket.c:2155 [inline]
 __se_sys_sendto net/socket.c:2151 [inline]
 __x64_sys_sendto+0xe5/0x100 net/socket.c:2151
 x64_sys_call+0x83/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:45
 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

Freed by task 8:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:242
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:250
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1750 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776
 slab_free mm/slub.c:3712 [inline]
 __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728
 kfree+0x6f/0xf0 mm/slab_common.c:990
 ref_tracker_dir_exit+0x193/0x4d0 lib/ref_tracker.c:27
 free_netdev+0x27d/0x490 net/core/dev.c:10873
 netdev_run_todo+0xac6/0xc30 net/core/dev.c:10514
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:147
 ip_tunnel_delete_nets+0x34b/0x390 net/ipv4/ip_tunnel.c:1140
 vti_exit_batch_net+0x22/0x30 net/ipv4/ip_vti.c:515
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x630/0xb10 net/core/net_namespace.c:604
 process_one_work+0x717/0xc30 kernel/workqueue.c:2302
 worker_thread+0xa4d/0x11d0 kernel/workqueue.c:2449
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the object at ffff88812f4d6380
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 0 bytes inside of
 32-byte region [ffff88812f4d6380, ffff88812f4d63a0)

The buggy address belongs to the physical page:
page:ffffea0004bd3580 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12f4d6
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 ffffea0004b83b00 dead000000000002 ffff888100042600
raw: 0000000000000000 0000000000400040 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 6, tgid 6 (kworker/0:0), ts 48884886840, free_ts 47912657255
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f5/0x210 mm/page_alloc.c:2673
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2680
 get_page_from_freelist+0x2ca9/0x2d20 mm/page_alloc.c:4587
 __alloc_pages+0x1fa/0x610 mm/page_alloc.c:5931
 alloc_slab_page+0x6e/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1967 [inline]
 new_slab+0x98/0x3e0 mm/slub.c:2020
 ___slab_alloc+0x70f/0xb70 mm/slub.c:3177
 __slab_alloc+0x5e/0xa0 mm/slub.c:3263
 slab_alloc_node mm/slub.c:3348 [inline]
 __kmem_cache_alloc_node+0x204/0x2d0 mm/slub.c:3423
 kmalloc_trace+0x29/0xb0 mm/slab_common.c:1028
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 ref_tracker_alloc+0x16b/0x4a0 lib/ref_tracker.c:85
 __netdev_tracker_alloc include/linux/netdevice.h:4085 [inline]
 netdev_hold include/linux/netdevice.h:4114 [inline]
 dst_init+0xc4/0x3d0 net/core/dst.c:52
 dst_alloc+0x191/0x1e0 net/core/dst.c:96
 ip6_dst_alloc net/ipv6/route.c:345 [inline]
 icmp6_dst_alloc+0xf8/0x510 net/ipv6/route.c:3312
 mld_sendpack+0x623/0xda0 net/ipv6/mcast.c:1814
 mld_send_cr net/ipv6/mcast.c:2126 [inline]
 mld_ifc_work+0x83b/0xc20 net/ipv6/mcast.c:2658
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1581 [inline]
 free_pcp_prepare mm/page_alloc.c:1655 [inline]
 free_unref_page_prepare+0x81b/0x820 mm/page_alloc.c:3622
 free_unref_page+0x93/0x530 mm/page_alloc.c:3720
 free_the_page mm/page_alloc.c:863 [inline]
 __free_pages+0x67/0x100 mm/page_alloc.c:6021
 __vunmap+0xa3c/0xc00 mm/vmalloc.c:2739
 __vfree mm/vmalloc.c:2788 [inline]
 vfree+0x61/0x90 mm/vmalloc.c:2819
 kcov_put kernel/kcov.c:437 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:533
 __fput+0x1fd/0x8f0 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xb0d/0x29f0 kernel/exit.c:896
 do_group_exit+0x21b/0x2e0 kernel/exit.c:1040
 get_signal+0x167c/0x1700 kernel/signal.c:2904
 arch_do_signal_or_restart+0xd1/0x11c0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x7a/0xb0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303

Memory state around the buggy address:
 ffff88812f4d6280: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812f4d6300: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
>ffff88812f4d6380: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
                   ^
 ffff88812f4d6400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
 ffff88812f4d6480: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
==================================================================
EXT4-fs error (device loop1): ext4_map_blocks:747: inode #15: block 5991479377949: comm kworker/u4:6: lblock 36 mapped to illegal pblock 5991479377949 (length 28)
EXT4-fs (loop1): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 117
EXT4-fs (loop1): This should not happen!! Data will be lost

EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs error (device loop1): __ext4_get_inode_loc:4522: comm kworker/u4:6: Invalid inode table block 1061109567 in block_group 0
EXT4-fs (loop8): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 117
EXT4-fs (loop8): This should not happen!! Data will be lost

IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
__quota_error: 6 callbacks suppressed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
Quota error (device loop7): qtree_write_dquot: dquota write failed
EXT4-fs (loop7): Delayed block allocation failed for inode 15 at logical offset 36 with max blocks 28 with error 28
EXT4-fs (loop7): This should not happen!! Data will be lost

EXT4-fs (loop7): Total free blocks count 0
EXT4-fs (loop7): Free/Dirty block details
EXT4-fs (loop7): free_blocks=12
EXT4-fs (loop7): dirty_blocks=0
EXT4-fs (loop7): Block reservation details
EXT4-fs (loop7): i_reserved_data_blocks=0
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
bridge0: port 1(bridge_slave_0) entered blocking state
bridge0: port 1(bridge_slave_0) entered forwarding state
IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
bridge0: port 2(bridge_slave_1) entered blocking state
bridge0: port 2(bridge_slave_1) entered forwarding state