Extracting prog: 2m2.664366503s
Minimizing prog: 5m39.580000802s
Simplifying prog options: 0s
Extracting C: 48.041813549s
Simplifying C: 13m19.078559402s


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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program crashed: kernel BUG in submit_bh_wbc
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)

program did not crash
testing program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
write$cgroup_int(0xffffffffffffffff, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=47.664128625s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
simplifying C reproducer
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program did not crash
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$eJzs3d9rW1UcAPDvTdv91nUwhvoghT04mUvX1h8TfJiPosOBvs/Q3pXRZBlNOtY6cHtwL77IEEQciH+A7z4O/wH/ioEOhoyiD75EbnrTZWvSZm22Zubzgduec89Nzz0593t6bk5CAhhaE9mPQsSrEfFtEnG4rWw08sKJteNWH16fzbYkGo3P/koiyfe1jk/y3wfzzCsR8dvXEScLG+utLa8slMrldDHPT9YrVyZryyunLlVK8+l8enl6ZubMOzPT77/3bt/a+ub5f3749O5HZ745vvr9L/eP3E7ibBzKy9rbsQM32jMTMZE/J2Nx9okDp/pQ2SBJdvsE2JaRPM7HIhsDDsdIHvXA/99XEdEAhlQi/mFIteYBrXv7Pt0HvzAefLh2A7Sx/aNrr43Evua90YHV5LE7o+x+d7wP9Wd1/PrnndvZFv17HQJgSzduRsTp0dGN41+Sj3/bd7qHY56sw/gHz8/dbP7zVqf5T2F9/hMd5j8HO8Tudmwd/4X7faimq2z+90HH+e/6otX4SJ57qTnnG0suXiqn2dj2ckSciLG9WX6z9Zwzq/ca3cra53/ZltXfmgvm53F/dO/jj5kr1Us7aXO7BzcjXus4/03W+z/p0P/Z83G+xzqOpXde71a2dfufrcbPEW907P9HK1rJ5uuTk83rYbJ1VWz0961jv3erf7fbn/X/gc3bP560r9fWnr6On/b9m3Yr2+71vyf5vJnek++7VqrXF6ci9iSfbNw//eixrXzr+Kz9J45vPv51uv73R8QXPbb/1tFbXQ8dhP6fe6r+f/rEvY+//LFb/b31/9vN1Il8Ty/jX68nuJPnDgAAAAAAAAZNISIORVIorqcLhWJx7f0dR+NAoVyt1U9erC5dnovmZ2XHY6zQWuk+3PZ+iKn8/bCt/PQT+ZmIOBIR343sb+aLs9Xy3G43HgAAAAAAAAAAAAAAAAAAAAbEwYh9nT7/n/ljZLfPDnjmfOU3DK/u8Z+X9OObnoCB5P8/DC/xD8NL/MPwEv8wvMQ/DC/xD8NL/MPwEv8AAAAAAAAAAAAAAAAAAAAAAAAAAADQV+fPncu2xurD67NZfu7q8tJC9eqpubS2UKwszRZnq4tXivPV6nw5Lc5WK1v9vXK1emVqOpauTdbTWn2ytrxyoVJduly/cKlSmk8vpGPPpVUAAAAAAAAAAAAAAAAAAADwYqktryyUyuV0UUJiW4nRwTgNiT4ndntkAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIBH/gsAAP//sQI4ww==")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
testing program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
testing program (duration=47.664128625s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x200000, &(0x7f0000000a40)={[{@stripe={'stripe', 0x3d, 0x3}}, {@noauto_da_alloc}, {@jqfmt_vfsold}, {@data_err_ignore}, {@noauto_da_alloc}, {@delalloc}, {@resuid}, {@oldalloc}, {@jqfmt_vfsv1}]}, 0xfc, 0x550, &(0x7f0000000b00)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
reproducing took 24m35.455141179s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2666!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4499 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
lr : submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
sp : ffff8000214f7bb0
x29: ffff8000214f7bc0 x28: ffff0000f2063008 x27: dfff800000000000
x26: 1fffe0001a9764cf x25: 0000000000000000 x24: 1fffe0001bd30ae8
x23: ffff70000429ef88 x22: ffff0000d4bb0000 x21: 0000000000003801
x20: ffff0000de985740 x19: 0000000000000005 x18: ffff800011b9bf60
x17: 1fffe00033eaa57e x16: ffff8000082d7db8 x15: ffff80001521d000
x14: 0000000000000001 x13: 1fffe0001bd30af4 x12: 0000000000ff0100
x11: ff00800008a94c98 x10: 0000000000000000 x9 : ffff800008a94c98
x8 : ffff0000e1029bc0 x7 : ffff800008dcdf7c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008dcd758
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
 submit_bh+0x2c/0x3c fs/buffer.c:2707
 write_mmp_block_thawed+0x320/0x4c4 fs/ext4/mmp.c:51
 write_mmp_block+0x1e4/0x5f0 fs/ext4/mmp.c:67
 kmmpd+0x664/0x938 fs/ext4/mmp.c:246
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 17ffffad 97e85a43 d4210000 97e85a41 (d4210000) 
---[ end trace 0000000000000000 ]---

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2666!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4499 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
lr : submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
sp : ffff8000214f7bb0
x29: ffff8000214f7bc0 x28: ffff0000f2063008 x27: dfff800000000000
x26: 1fffe0001a9764cf x25: 0000000000000000 x24: 1fffe0001bd30ae8
x23: ffff70000429ef88 x22: ffff0000d4bb0000 x21: 0000000000003801
x20: ffff0000de985740 x19: 0000000000000005 x18: ffff800011b9bf60
x17: 1fffe00033eaa57e x16: ffff8000082d7db8 x15: ffff80001521d000
x14: 0000000000000001 x13: 1fffe0001bd30af4 x12: 0000000000ff0100
x11: ff00800008a94c98 x10: 0000000000000000 x9 : ffff800008a94c98
x8 : ffff0000e1029bc0 x7 : ffff800008dcdf7c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008dcd758
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 submit_bh_wbc+0x3e0/0x44c fs/buffer.c:2666
 submit_bh+0x2c/0x3c fs/buffer.c:2707
 write_mmp_block_thawed+0x320/0x4c4 fs/ext4/mmp.c:51
 write_mmp_block+0x1e4/0x5f0 fs/ext4/mmp.c:67
 kmmpd+0x664/0x938 fs/ext4/mmp.c:246
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 17ffffad 97e85a43 d4210000 97e85a41 (d4210000) 
---[ end trace 0000000000000000 ]---