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 PTI
CPU: 0 UID: 0 PID: 6108 Comm: syz.2.50 Not tainted syzkaller #0 PREEMPT(full) 
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: 4f c7 ff 4c 89 e7 48 c7 c6 40 bd 94 8b e8 bd ee 2d ff 90 0f 0b e8 25 4f c7 ff 4c 89 e7 48 c7 c6 20 b4 94 8b e8 a6 ee 2d ff 90 <0f> 0b e8 0e 4f c7 ff 4c 89 e7 48 c7 c6 40 bd 94 8b e8 8f ee 2d ff
RSP: 0018:ffffc90003d475c0 EFLAGS: 00010246
RAX: 4f2c6800b8cdae00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff
RBP: ffffc90003d47740 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e
R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: ffffea0001c78900
R13: dffffc0000000000 R14: ffffea0001c78908 R15: 0000000000000002
FS:  000055556787c500(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000980 CR3: 0000000032384000 CR4: 00000000003526f0
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
 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400
 filemap_fault+0x6ac/0x1290 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5302
 do_shared_fault mm/memory.c:5801 [inline]
 do_fault mm/memory.c:5875 [inline]
 do_pte_missing+0x6ad/0x3330 mm/memory.c:4416
 handle_pte_fault mm/memory.c:6255 [inline]
 __handle_mm_fault mm/memory.c:6393 [inline]
 handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6562
 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x71/0xd0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fee162556b1
Code: 48 8b 54 24 08 48 85 d2 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fa 01 0f 85 b3 01 00 00 48 8b 44 24 10 8b 54 24 18 <89> 10 e9 15 fd ff ff 48 8b 44 24 10 8b 10 48 8b 44 24 08 48 85 c0
RSP: 002b:00007ffd8176a950 EFLAGS: 00010246
RAX: 0000200000000980 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000004000 RSI: 0000000000000000 RDI: 000055556787c3c8
RBP: 00007ffd8176aa58 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: 00007fee165e5fac
R13: 00007fee165e5fa0 R14: fffffffffffffffe R15: 0000000000000006
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: 4f c7 ff 4c 89 e7 48 c7 c6 40 bd 94 8b e8 bd ee 2d ff 90 0f 0b e8 25 4f c7 ff 4c 89 e7 48 c7 c6 20 b4 94 8b e8 a6 ee 2d ff 90 <0f> 0b e8 0e 4f c7 ff 4c 89 e7 48 c7 c6 40 bd 94 8b e8 8f ee 2d ff
RSP: 0018:ffffc90003d475c0 EFLAGS: 00010246

RAX: 4f2c6800b8cdae00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff
RBP: ffffc90003d47740 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e
R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: ffffea0001c78900
R13: dffffc0000000000 R14: ffffea0001c78908 R15: 0000000000000002
FS:  000055556787c500(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f92bd7b6ad8 CR3: 0000000032384000 CR4: 00000000003526f0