Extracting prog: 2m27.211471605s
Minimizing prog: 10m14.116258567s
Simplifying prog options: 0s
Extracting C: 1m14.872450826s
Simplifying C: 10m45.135929481s


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:4 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$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program crashed: kernel BUG in __filemap_add_folio
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-openat$nullb
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
ioctl$FS_IOC_SETFLAGS(0xffffffffffffffff, 0x40081271, &(0x7f0000000980)=0x4000)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r0, 0x40081271, &(0x7f0000000980)=0x4000)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, 0xffffffffffffffff, 0x0)
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r0, 0x40081271, &(0x7f0000000980)=0x4000)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, 0x0, 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, 0x0, 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program did not crash
testing program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=47.573989996s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
simplifying C reproducer
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing compiled C program (duration=47.573989996s, {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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program did not crash
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program did not crash
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing compiled C program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
program crashed: kernel BUG in __filemap_add_folio
testing program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program crashed: kernel BUG in __filemap_add_folio
validation run: crashed=true
testing program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program crashed: kernel BUG in __filemap_add_folio
validation run: crashed=true
testing program (duration=47.573989996s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$nullb-mmap-openat$nullb-ioctl$FS_IOC_SETFLAGS
detailed listing:
executing program 0:
r0 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3000007, 0x38011, r0, 0x0)
r1 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000040), 0x121403, 0x0)
ioctl$FS_IOC_SETFLAGS(r1, 0x40081271, &(0x7f0000000980)=0x4000)

program crashed: kernel BUG in __filemap_add_folio
validation run: crashed=true
reproducing took 30m6.665701254s
repro crashed as (corrupted=false):
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x3dd/0xe30 mm/truncate.c:408
 kill_bdev block/bdev.c:91 [inline]
 set_blocksize+0x2d7/0x490 block/bdev.c:207
 blkdev_bszset+0x1b2/0x230 block/ioctl.c:635
 blkdev_ioctl+0x2c7/0x740 block/ioctl.c:774
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6064 Comm: syz.0.56 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 6c 7b 2b ff 90 0f 0b e8 44 90 c6 ff 4c 89 e7 48 c7 c6 40 b1 b7 8b e8 55 7b 2b ff 90 <0f> 0b e8 2d 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 3e 7b 2b ff
RSP: 0018:ffffc90002e875c0 EFLAGS: 00010246
RAX: 7e8007a89f5a0e00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8ddee551 RDI: 00000000ffffffff
RBP: ffffc90002e87740 R08: ffffffff9011d2b7 R09: 1ffffffff2023a56
R10: dffffc0000000000 R11: fffffbfff2023a57 R12: ffffea0001d4fa00
R13: dffffc0000000000 R14: ffffea0001d4fa08 R15: 0000000000000002
FS:  0000555586428500(0000) GS:ffff8881253a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f61ef14da08 CR3: 0000000066afa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a8/0xe50 mm/readahead.c:512
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3400
 filemap_fault+0x703/0x12e0 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5362
 do_shared_fault mm/memory.c:5861 [inline]
 do_fault mm/memory.c:5935 [inline]
 do_pte_missing+0x66e/0x3220 mm/memory.c:4476
 handle_pte_fault mm/memory.c:6315 [inline]
 __handle_mm_fault mm/memory.c:6453 [inline]
 handle_mm_fault+0x1b8c/0x32b0 mm/memory.c:6622
 do_user_addr_fault+0xa73/0x1360 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fca94969c18
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007ffda69816a8 EFLAGS: 00010202
RAX: 0000200000000040 RBX: 0000000000000004 RCX: 0030626c6c756e2f
RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000200000000040
RBP: fffffffffffffffe R08: 0000001b2f620000 R09: 0000000000000001
R10: 7ffffffffffffff3 R11: 0000000000000009 R12: 0000000000000000
R13: 00007fca94c15fac R14: 000000000001a7ff R15: 00007fca94c15fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 6c 7b 2b ff 90 0f 0b e8 44 90 c6 ff 4c 89 e7 48 c7 c6 40 b1 b7 8b e8 55 7b 2b ff 90 <0f> 0b e8 2d 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 3e 7b 2b ff
RSP: 0018:ffffc90002e875c0 EFLAGS: 00010246
RAX: 7e8007a89f5a0e00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8ddee551 RDI: 00000000ffffffff
RBP: ffffc90002e87740 R08: ffffffff9011d2b7 R09: 1ffffffff2023a56
R10: dffffc0000000000 R11: fffffbfff2023a57 R12: ffffea0001d4fa00
R13: dffffc0000000000 R14: ffffea0001d4fa08 R15: 0000000000000002
FS:  0000555586428500(0000) GS:ffff8881253a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b6dbde2f8 CR3: 0000000066afa000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x3dd/0xe30 mm/truncate.c:408
 kill_bdev block/bdev.c:91 [inline]
 set_blocksize+0x2d7/0x490 block/bdev.c:207
 blkdev_bszset+0x1b2/0x230 block/ioctl.c:635
 blkdev_ioctl+0x2c7/0x740 block/ioctl.c:774
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6064 Comm: syz.0.56 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 6c 7b 2b ff 90 0f 0b e8 44 90 c6 ff 4c 89 e7 48 c7 c6 40 b1 b7 8b e8 55 7b 2b ff 90 <0f> 0b e8 2d 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 3e 7b 2b ff
RSP: 0018:ffffc90002e875c0 EFLAGS: 00010246
RAX: 7e8007a89f5a0e00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8ddee551 RDI: 00000000ffffffff
RBP: ffffc90002e87740 R08: ffffffff9011d2b7 R09: 1ffffffff2023a56
R10: dffffc0000000000 R11: fffffbfff2023a57 R12: ffffea0001d4fa00
R13: dffffc0000000000 R14: ffffea0001d4fa08 R15: 0000000000000002
FS:  0000555586428500(0000) GS:ffff8881253a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f61ef14da08 CR3: 0000000066afa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a8/0xe50 mm/readahead.c:512
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3400
 filemap_fault+0x703/0x12e0 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5362
 do_shared_fault mm/memory.c:5861 [inline]
 do_fault mm/memory.c:5935 [inline]
 do_pte_missing+0x66e/0x3220 mm/memory.c:4476
 handle_pte_fault mm/memory.c:6315 [inline]
 __handle_mm_fault mm/memory.c:6453 [inline]
 handle_mm_fault+0x1b8c/0x32b0 mm/memory.c:6622
 do_user_addr_fault+0xa73/0x1360 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fca94969c18
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007ffda69816a8 EFLAGS: 00010202
RAX: 0000200000000040 RBX: 0000000000000004 RCX: 0030626c6c756e2f
RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000200000000040
RBP: fffffffffffffffe R08: 0000001b2f620000 R09: 0000000000000001
R10: 7ffffffffffffff3 R11: 0000000000000009 R12: 0000000000000000
R13: 00007fca94c15fac R14: 000000000001a7ff R15: 00007fca94c15fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1300 mm/filemap.c:858
Code: 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 6c 7b 2b ff 90 0f 0b e8 44 90 c6 ff 4c 89 e7 48 c7 c6 40 b1 b7 8b e8 55 7b 2b ff 90 <0f> 0b e8 2d 90 c6 ff 4c 89 e7 48 c7 c6 a0 bc b7 8b e8 3e 7b 2b ff
RSP: 0018:ffffc90002e875c0 EFLAGS: 00010246
RAX: 7e8007a89f5a0e00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8ddee551 RDI: 00000000ffffffff
RBP: ffffc90002e87740 R08: ffffffff9011d2b7 R09: 1ffffffff2023a56
R10: dffffc0000000000 R11: fffffbfff2023a57 R12: ffffea0001d4fa00
R13: dffffc0000000000 R14: ffffea0001d4fa08 R15: 0000000000000002
FS:  0000555586428500(0000) GS:ffff8881253a1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0b6dbde2f8 CR3: 0000000066afa000 CR4: 00000000003526f0