Extracting prog: 2m40.350599345s
Minimizing prog: 11m41.46458267s
Simplifying prog options: 3m32.887572885s
Extracting C: 1m28.808023374s
Simplifying C: 11m22.091489511s


extracting reproducer from 30 programs
first checking the prog from the crash report
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-renameat2-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE-rmdir
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
renameat2(0xffffffffffffff9c, &(0x7f00000001c0)='./file0/file0\x00', 0xffffffffffffff9c, 0x0, 0x0)
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)
rmdir(&(0x7f0000000100)='./file0\x00')

program crashed: WARNING: suspicious RCU usage in proc_sys_compare
program crashed: WARNING: suspicious RCU usage in proc_sys_compare
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-renameat2-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
renameat2(0xffffffffffffff9c, &(0x7f00000001c0)='./file0/file0\x00', 0xffffffffffffff9c, 0x0, 0x0)
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: kernel BUG in folio_set_bh
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-renameat2-syz_open_dev$loop
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
renameat2(0xffffffffffffff9c, &(0x7f00000001c0)='./file0/file0\x00', 0xffffffffffffff9c, 0x0, 0x0)
syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)

program did not crash
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-renameat2-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
renameat2(0xffffffffffffff9c, &(0x7f00000001c0)='./file0/file0\x00', 0xffffffffffffff9c, 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(0xffffffffffffffff, 0x4c09, 0x8000)

program did not crash
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: WARNING: suspicious RCU usage in proc_sys_compare
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program did not crash
testing program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(0x0, 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program did not crash
extracting C reproducer
testing compiled C program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: WARNING in bdev_getblk
a never seen crash title: WARNING in bdev_getblk, ignore
simplifying guilty program options
testing program (duration=36.061204936s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: kernel BUG in folio_set_bh
extracting C reproducer
testing compiled C program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: kernel BUG in folio_set_bh
simplifying C reproducer
testing compiled C program (duration=36.061204936s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program did not crash
testing compiled C program (duration=36.061204936s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: WARNING in bdev_getblk
a never seen crash title: WARNING in bdev_getblk, ignore
testing compiled C program (duration=36.061204936s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: kernel BUG in folio_set_bh
testing compiled C program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: kernel BUG in folio_set_bh
testing compiled C program (duration=36.061204936s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: kernel BUG in folio_set_bh
testing compiled C program (duration=36.061204936s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program did not crash
testing compiled C program (duration=36.061204936s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: kernel BUG in folio_set_bh
testing program (duration=36.061204936s, {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:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: kernel BUG in folio_set_bh
validation run: crashed=true
testing program (duration=36.061204936s, {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:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: kernel BUG in folio_set_bh
validation run: crashed=true
testing program (duration=36.061204936s, {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:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$vfat(&(0x7f0000000240), &(0x7f0000000280)='./file0\x00', 0x0, &(0x7f0000000480)={[{@shortname_winnt}, {@uni_xlate}, {@shortname_lower}, {@iocharset={'iocharset', 0x3d, 'cp850'}}, {@fat=@codepage={'codepage', 0x3d, '1250'}}, {@utf8}, {@uni_xlate}, {@utf8}]}, 0x11, 0x221, &(0x7f0000000680)="$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")
r0 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x8000)

program crashed: kernel BUG in folio_set_bh
validation run: crashed=true
reproducing took 37m1.589982867s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 128
------------[ cut here ]------------
kernel BUG at fs/buffer.c:1582!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6151 Comm: syz.0.51 Not tainted 6.16.0-rc4-next-20250702-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc90003c5f8e0 EFLAGS: 00010293
RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148
R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000
R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000
FS:  0000555591bcd500(0000) GS:ffff888125d1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5810d71d60 CR3: 0000000076ee0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 folio_alloc_buffers+0x3a0/0x640 fs/buffer.c:946
 grow_dev_folio fs/buffer.c:1075 [inline]
 grow_buffers fs/buffer.c:1116 [inline]
 __getblk_slow fs/buffer.c:1134 [inline]
 bdev_getblk+0x286/0x660 fs/buffer.c:1461
 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515
 sb_bread include/linux/buffer_head.h:346 [inline]
 fat_fill_super+0x5e2/0x3570 fs/fat/inode.c:1598
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1681
 vfs_get_tree+0x92/0x2b0 fs/super.c:1804
 do_new_mount+0x24a/0xa40 fs/namespace.c:3902
 do_mount fs/namespace.c:4239 [inline]
 __do_sys_mount fs/namespace.c:4450 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5810d900ca
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6ee42248 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe6ee422d0 RCX: 00007f5810d900ca
RDX: 0000200000000240 RSI: 0000200000000280 RDI: 00007ffe6ee42290
RBP: 0000200000000240 R08: 00007ffe6ee422d0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000280
R13: 00007ffe6ee42290 R14: 0000000000000221 R15: 0000200000000480
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc90003c5f8e0 EFLAGS: 00010293
RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148
R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000
R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000
FS:  0000555591bcd500(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9535e0f000 CR3: 0000000076ee0000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 128
------------[ cut here ]------------
kernel BUG at fs/buffer.c:1582!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6151 Comm: syz.0.51 Not tainted 6.16.0-rc4-next-20250702-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc90003c5f8e0 EFLAGS: 00010293
RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148
R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000
R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000
FS:  0000555591bcd500(0000) GS:ffff888125d1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5810d71d60 CR3: 0000000076ee0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 folio_alloc_buffers+0x3a0/0x640 fs/buffer.c:946
 grow_dev_folio fs/buffer.c:1075 [inline]
 grow_buffers fs/buffer.c:1116 [inline]
 __getblk_slow fs/buffer.c:1134 [inline]
 bdev_getblk+0x286/0x660 fs/buffer.c:1461
 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515
 sb_bread include/linux/buffer_head.h:346 [inline]
 fat_fill_super+0x5e2/0x3570 fs/fat/inode.c:1598
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1681
 vfs_get_tree+0x92/0x2b0 fs/super.c:1804
 do_new_mount+0x24a/0xa40 fs/namespace.c:3902
 do_mount fs/namespace.c:4239 [inline]
 __do_sys_mount fs/namespace.c:4450 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5810d900ca
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6ee42248 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe6ee422d0 RCX: 00007f5810d900ca
RDX: 0000200000000240 RSI: 0000200000000280 RDI: 00007ffe6ee42290
RBP: 0000200000000240 R08: 00007ffe6ee422d0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000280
R13: 00007ffe6ee42290 R14: 0000000000000221 R15: 0000200000000480
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582
Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc90003c5f8e0 EFLAGS: 00010293
RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000
RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148
R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000
R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000
FS:  0000555591bcd500(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9535e0f000 CR3: 0000000076ee0000 CR4: 00000000003526f0