blkdev_bszset+0x19b/0x240 block/ioctl.c:640
 blkdev_ioctl+0x513/0x6f0 block/ioctl.c:779
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x10b/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: 16606 Comm: syz.2.3125 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859
Code: 95 9e c3 ff 48 8d 3d 7e 00 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 7f 9e c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 90 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 63 9e c3 ff 48 c7 84 24 a0 00 00 00 03 00
RSP: 0018:ffffc9000a237820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888033e8ca00 RSI: ffffffff8257cca8 RDI: ffff888033e8cec4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004
R13: ffffea0000e4dfc0 R14: 0000000000000000 R15: 1ffff92001446f2f
FS:  000055557c69b500(0000) GS:ffff88812436d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3371eff8 CR3: 000000008d9d8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:967
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x614/0xf10 mm/readahead.c:515
 do_sync_mmap_readahead mm/filemap.c:3406 [inline]
 filemap_fault+0x1900/0x2e90 mm/filemap.c:3555
 __do_fault+0x10b/0x440 mm/memory.c:5458
 do_shared_fault mm/memory.c:5957 [inline]
 do_fault+0x2db/0x1750 mm/memory.c:6031
 do_pte_missing mm/memory.c:4550 [inline]
 handle_pte_fault mm/memory.c:6411 [inline]
 __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6549
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6718
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f44cee6a378
Code: 25 00 00 00 00 48 8d b8 d8 fe ff ff 4c 89 74 24 50 e8 5c 3b 0d 00 85 c0 75 13 48 8b 84 24 80 00 00 00 48 8b b4 24 c0 00 00 00 <48> 89 30 64 f0 83 2c 25 a0 ff ff ff 01 4c 8b 74 24 50 e9 91 f5 ff
RSP: 002b:00007ffcb3f54490 EFLAGS: 00010246
RAX: 0000200000000000 RBX: 0000000000000002 RCX: 0000000000000015
RDX: 579bda418ad6e4ac RSI: 00002000008f9f09 RDI: 000055557c69b3d8
RBP: fffffffffffffffe R08: 0000001b2ca20000 R09: 0000000000000008
R10: 00000000008f9f09 R11: 0000000000000003 R12: 00007ffcb3f545b0
R13: 00007f44cf21618c R14: 00000000000c9616 R15: 00007f44cf216180
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859
Code: 95 9e c3 ff 48 8d 3d 7e 00 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 7f 9e c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 90 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 63 9e c3 ff 48 c7 84 24 a0 00 00 00 03 00
RSP: 0018:ffffc9000a237820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888033e8ca00 RSI: ffffffff8257cca8 RDI: ffff888033e8cec4
RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004
R13: ffffea0000e4dfc0 R14: 0000000000000000 R15: 1ffff92001446f2f
FS:  000055557c69b500(0000) GS:ffff88812446d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33701ff8 CR3: 000000008d9d8000 CR4: 00000000003526f0