Extracting prog: 1m32.281659701s
Minimizing prog: 5m22.419825619s
Simplifying prog options: 0s
Extracting C: 31.417986344s
Simplifying C: 5m24.086772154s


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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program crashed: kernel BUG in submit_bh_wbc
program crashed: kernel BUG in submit_bh_wbc
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)

program did not crash
testing program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
testing program (duration=33.306593274s, {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}}): mount$fuseblk-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
write$cgroup_subtree(0xffffffffffffffff, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
testing program (duration=33.306593274s, {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$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
testing program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(0x0, 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
testing program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
testing program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, 0x0, 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
extracting C reproducer
testing compiled C program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
simplifying C reproducer
testing compiled C program (duration=33.306593274s, {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}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program did not crash
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program did not crash
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
testing compiled C program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
program crashed: kernel BUG in submit_bh_wbc
testing program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
testing program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program did not crash
validation run: crashed=false
testing program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
testing program (duration=33.306593274s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$fuseblk-openat$sysfs-write$cgroup_subtree-syz_mount_image$ext4
detailed listing:
executing program 0:
mount$fuseblk(&(0x7f0000000000), 0x0, 0x0, 0x2010002, 0x0)
r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x141a82, 0x0)
write$cgroup_subtree(r0, &(0x7f0000000000)=ANY=[], 0x32600)
syz_mount_image$ext4(&(0x7f0000000640)='ext4\x00', &(0x7f0000000200)='./file2\x00', 0x200000, &(0x7f0000000300)={[{@dioread_lock}, {@jqfmt_vfsv1}, {@nouid32}, {@grpquota}]}, 0xfc, 0x580, &(0x7f0000000f80)="$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")

program crashed: kernel BUG in submit_bh_wbc
validation run: crashed=true
reproducing took 16m24.875975404s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2714!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 419 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:submit_bh_wbc+0x4c9/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 68 d5 e7 ff e9 b0 fe ff ff e8 1e 38 a2 ff 0f 0b e8 17 38 a2 ff <0f> 0b e8 10 38 a2 ff 0f 0b e8 09 38 a2 ff 0f 0b e8 02 38 a2 ff 0f
RSP: 0018:ffffc90000b87ca0 EFLAGS: 00010293
RAX: ffffffff81cf3f59 RBX: 0000000000000000 RCX: ffff888118575100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b87cf0 R08: ffff888123ffdc7f R09: 1ffff110247ffb8f
R10: dffffc0000000000 R11: ffffed10247ffb90 R12: 0000000000000000
R13: 1ffff110247ffb8f R14: ffff888123ffdc78 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8d0585fc0 CR3: 000000010fb65000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 submit_bh+0x1f/0x30 fs/buffer.c:2755
 write_mmp_block_thawed+0x397/0x510 fs/ext4/mmp.c:51
 write_mmp_block+0x138/0x2b0 fs/ext4/mmp.c:67
 kmmpd+0x215/0x950 fs/ext4/mmp.c:246
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x4c9/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 68 d5 e7 ff e9 b0 fe ff ff e8 1e 38 a2 ff 0f 0b e8 17 38 a2 ff <0f> 0b e8 10 38 a2 ff 0f 0b e8 09 38 a2 ff 0f 0b e8 02 38 a2 ff 0f
RSP: 0018:ffffc90000b87ca0 EFLAGS: 00010293
RAX: ffffffff81cf3f59 RBX: 0000000000000000 RCX: ffff888118575100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b87cf0 R08: ffff888123ffdc7f R09: 1ffff110247ffb8f
R10: dffffc0000000000 R11: ffffed10247ffb90 R12: 0000000000000000
R13: 1ffff110247ffb8f R14: ffff888123ffdc78 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc219fff8 CR3: 0000000134683000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2714!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 419 Comm: kmmpd-loop0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:submit_bh_wbc+0x4c9/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 68 d5 e7 ff e9 b0 fe ff ff e8 1e 38 a2 ff 0f 0b e8 17 38 a2 ff <0f> 0b e8 10 38 a2 ff 0f 0b e8 09 38 a2 ff 0f 0b e8 02 38 a2 ff 0f
RSP: 0018:ffffc90000b87ca0 EFLAGS: 00010293
RAX: ffffffff81cf3f59 RBX: 0000000000000000 RCX: ffff888118575100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b87cf0 R08: ffff888123ffdc7f R09: 1ffff110247ffb8f
R10: dffffc0000000000 R11: ffffed10247ffb90 R12: 0000000000000000
R13: 1ffff110247ffb8f R14: ffff888123ffdc78 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc8d0585fc0 CR3: 000000010fb65000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 submit_bh+0x1f/0x30 fs/buffer.c:2755
 write_mmp_block_thawed+0x397/0x510 fs/ext4/mmp.c:51
 write_mmp_block+0x138/0x2b0 fs/ext4/mmp.c:67
 kmmpd+0x215/0x950 fs/ext4/mmp.c:246
 kthread+0x281/0x320 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_bh_wbc+0x4c9/0x4f0 fs/buffer.c:2714
Code: c3 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c bd fe ff ff 48 89 df e8 68 d5 e7 ff e9 b0 fe ff ff e8 1e 38 a2 ff 0f 0b e8 17 38 a2 ff <0f> 0b e8 10 38 a2 ff 0f 0b e8 09 38 a2 ff 0f 0b e8 02 38 a2 ff 0f
RSP: 0018:ffffc90000b87ca0 EFLAGS: 00010293
RAX: ffffffff81cf3f59 RBX: 0000000000000000 RCX: ffff888118575100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000b87cf0 R08: ffff888123ffdc7f R09: 1ffff110247ffb8f
R10: dffffc0000000000 R11: ffffed10247ffb90 R12: 0000000000000000
R13: 1ffff110247ffb8f R14: ffff888123ffdc78 R15: 0000000000003801
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc219fff8 CR3: 0000000134683000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400