Extracting prog: 1m57.11257314s
Minimizing prog: 5m36.01038623s
Simplifying prog options: 0s
Extracting C: 1m12.45796603s
Simplifying C: 12m57.545098069s


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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$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=45.063482323s, {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$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)

program did not crash
testing program (duration=45.063482323s, {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$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000200)='./file1\x00', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
write$cgroup_int(0xffffffffffffffff, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=45.063482323s, {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=45.063482323s, {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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x149a82, 0x0)
write$cgroup_int(r0, &(0x7f0000000000)=0x700, 0x12)

program did not crash
testing program (duration=45.063482323s, {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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$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=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
simplifying C reproducer
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program did not crash
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {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$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=45.063482323s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-openat$sysfs-write$cgroup_int
program crashed: kernel BUG in submit_bh_wbc
testing program (duration=45.063482323s, {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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$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=45.063482323s, {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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$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=45.063482323s, {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', 0x0, &(0x7f0000000480), 0xf8, 0x58a, &(0x7f00000004c0)="$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")
r0 = openat$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 25m18.430279586s
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: 4506 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
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 : ffff800020f47bb0
x29: ffff800020f47bc0 x28: 0000000000000000 x27: 000000000000022b
x26: dfff800000000000 x25: ffff800020f47c40 x24: dfff800000000000
x23: 1fffe0001c06e779 x22: ffff0000d5e08000 x21: 0000000000003801
x20: ffff0000e0373bc8 x19: 0000000000000005 x18: 1fffe00033e8417e
x17: ffff80001532d000 x16: ffff8000082dba2c x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe0001c06e785 x12: 0000000000000000
x11: ff00800008aa2f78 x10: 0000000000000000 x9 : ffff800008aa2f78
x8 : ffff0000d14b0000 x7 : ffff800008de0080 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008ddfcf0
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+0x324/0x4d8 fs/ext4/mmp.c:51
 write_mmp_block+0x1e4/0x5f0 fs/ext4/mmp.c:67
 kmmpd+0x1c0/0x978 fs/ext4/mmp.c:246
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 17ffffad 97e83dac d4210000 97e83daa (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: 4506 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
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 : ffff800020f47bb0
x29: ffff800020f47bc0 x28: 0000000000000000 x27: 000000000000022b
x26: dfff800000000000 x25: ffff800020f47c40 x24: dfff800000000000
x23: 1fffe0001c06e779 x22: ffff0000d5e08000 x21: 0000000000003801
x20: ffff0000e0373bc8 x19: 0000000000000005 x18: 1fffe00033e8417e
x17: ffff80001532d000 x16: ffff8000082dba2c x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe0001c06e785 x12: 0000000000000000
x11: ff00800008aa2f78 x10: 0000000000000000 x9 : ffff800008aa2f78
x8 : ffff0000d14b0000 x7 : ffff800008de0080 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008ddfcf0
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+0x324/0x4d8 fs/ext4/mmp.c:51
 write_mmp_block+0x1e4/0x5f0 fs/ext4/mmp.c:67
 kmmpd+0x1c0/0x978 fs/ext4/mmp.c:246
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Code: 17ffffad 97e83dac d4210000 97e83daa (d4210000) 
---[ end trace 0000000000000000 ]---