blkdev_bszset+0x1ac/0x220 block/ioctl.c:554
 blkdev_ioctl+0x430/0x6d0 block/ioctl.c:688
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584
 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
------------[ cut here ]------------
kernel BUG at mm/filemap.c:868!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 1856 Comm: syz.1.8372 Not tainted 6.17.0-rc1-next-20250814-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867
Code: 47 c9 ff 4c 89 e7 48 c7 c6 60 3d b4 8b e8 db 4f 31 ff 90 0f 0b e8 f3 46 c9 ff 4c 89 e7 48 c7 c6 40 34 b4 8b e8 c4 4f 31 ff 90 <0f> 0b e8 dc 46 c9 ff 4c 89 e7 48 c7 c6 60 3d b4 8b e8 ad 4f 31 ff
RSP: 0018:ffffc900045472c0 EFLAGS: 00010246
RAX: 5cd4c2301d3d1300 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c04d960 RDI: 00000000ffffffff
RBP: ffffc90004547430 R08: ffffffff8fe4db37 R09: 1ffffffff1fc9b66
R10: dffffc0000000000 R11: fffffbfff1fc9b67 R12: ffffea0000e7b800
R13: dffffc0000000000 R14: ffffea0000e7b808 R15: 0000000000000004
FS:  00007fd3dcd626c0(0000) GS:ffff8881257d6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001140 CR3: 000000004adc2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0xd5/0x270 mm/filemap.c:969
 ra_alloc_folio mm/readahead.c:448 [inline]
 page_cache_ra_order+0x643/0xd40 mm/readahead.c:506
 filemap_get_pages+0x486/0x1da0 mm/filemap.c:2604
 filemap_splice_read+0x581/0xc60 mm/filemap.c:2992
 do_splice_read fs/splice.c:979 [inline]
 splice_direct_to_actor+0x4a6/0xcc0 fs/splice.c:1083
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 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: 0033:0x7fd3dbf8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fd3dcd62038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fd3dc1b6090 RCX: 00007fd3dbf8ebe9
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007fd3dc011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 000000007ffff000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd3dc1b6128 R14: 00007fd3dc1b6090 R15: 00007ffcbbb52be8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867
Code: 47 c9 ff 4c 89 e7 48 c7 c6 60 3d b4 8b e8 db 4f 31 ff 90 0f 0b e8 f3 46 c9 ff 4c 89 e7 48 c7 c6 40 34 b4 8b e8 c4 4f 31 ff 90 <0f> 0b e8 dc 46 c9 ff 4c 89 e7 48 c7 c6 60 3d b4 8b e8 ad 4f 31 ff
RSP: 0018:ffffc900045472c0 EFLAGS: 00010246
RAX: 5cd4c2301d3d1300 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8c04d960 RDI: 00000000ffffffff
RBP: ffffc90004547430 R08: ffffffff8fe4db37 R09: 1ffffffff1fc9b66
R10: dffffc0000000000 R11: fffffbfff1fc9b67 R12: ffffea0000e7b800
R13: dffffc0000000000 R14: ffffea0000e7b808 R15: 0000000000000004
FS:  00007fd3dcd626c0(0000) GS:ffff8881257d6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001140 CR3: 000000004adc2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000006800 DR2: 0000000000009951
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400