folios_put_refs+0x584/0x670 mm/swap.c:1002
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x346/0xd90 mm/truncate.c:408
 kill_bdev block/bdev.c:91 [inline]
 set_blocksize+0x32a/0x500 block/bdev.c:207
 blkdev_bszset+0x1ac/0x220 block/ioctl.c:635
 blkdev_ioctl+0x2ad/0x710 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+0xec/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 NOPTI
CPU: 0 UID: 0 PID: 21955 Comm: syz.4.3911 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 fd da 2e ff 90 0f 0b e8 45 ca c7 ff 4c 89 e7 48 c7 c6 a0 a7 74 8b e8 e6 da 2e ff 90 <0f> 0b e8 2e ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 cf da 2e ff
RSP: 0018:ffffc900125b72a0 EFLAGS: 00010246
RAX: 9dc4e0c8144da700 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8d975e7a RDI: ffff888033c50000
RBP: ffffc900125b7420 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bbae40 R12: ffffea000289f300
R13: dffffc0000000000 R14: ffffea000289f308 R15: 0000000000000002
FS:  00007f2c5622a6c0(0000) GS:ffff888125e1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0deae9feb8 CR3: 00000000848c3000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x26d/0x540 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a7/0xe50 mm/readahead.c:512
 filemap_get_pages+0x468/0x1dc0 mm/filemap.c:2690
 filemap_splice_read+0x581/0xc60 mm/filemap.c:3079
 do_splice_read fs/splice.c:982 [inline]
 splice_direct_to_actor+0x4a9/0xcc0 fs/splice.c:1086
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1230
 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+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2c5538f749
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:00007f2c5622a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f2c555e6090 RCX: 00007f2c5538f749
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000006
RBP: 00007f2c55413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000200000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2c555e6128 R14: 00007f2c555e6090 R15: 00007ffc1062d708
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 fd da 2e ff 90 0f 0b e8 45 ca c7 ff 4c 89 e7 48 c7 c6 a0 a7 74 8b e8 e6 da 2e ff 90 <0f> 0b e8 2e ca c7 ff 4c 89 e7 48 c7 c6 c0 b0 74 8b e8 cf da 2e ff
RSP: 0018:ffffc900125b72a0 EFLAGS: 00010246
RAX: 9dc4e0c8144da700 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8d975e7a RDI: ffff888033c50000
RBP: ffffc900125b7420 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bbae40 R12: ffffea000289f300
R13: dffffc0000000000 R14: ffffea000289f308 R15: 0000000000000002
FS:  00007f2c5622a6c0(0000) GS:ffff888125e1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0deae9feb8 CR3: 00000000848c3000 CR4: 0000000000350ef0