------------[ cut here ]------------
kernel BUG at ./include/linux/pagemap.h:1426!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 8035 Comm: syz.2.571 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__readahead_folio include/linux/pagemap.h:1426 [inline]
RIP: 0010:readahead_folio include/linux/pagemap.h:1452 [inline]
RIP: 0010:mpage_readahead+0x765/0x790 fs/mpage.c:367
Code: c6 80 82 9a 8b e8 0b 9c da fe 90 0f 0b e8 43 87 74 ff 4c 89 ff 48 c7 c6 60 81 9a 8b e8 f4 9b da fe 90 0f 0b e8 2c 87 74 ff 90 <0f> 0b e8 24 87 74 ff 4c 89 ff 48 c7 c6 80 82 9a 8b e8 d5 9b da fe
RSP: 0018:ffffc900033574a0 EFLAGS: 00010293
RAX: ffffffff824d6c04 RBX: 0000000000000010 RCX: ffff888025e59e80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffc90003357690 R08: ffffea000140cc07 R09: 1ffffd4000281980
R10: dffffc0000000000 R11: fffff94000281981 R12: ffffc90003357908
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90003357920
FS:  0000555583dd5500(0000) GS:ffff888125b03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005628726c2950 CR3: 000000007e448000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 read_pages+0x17a/0x580 mm/readahead.c:163
 page_cache_ra_unbounded+0x3dc/0x990 mm/readahead.c:269
 do_sync_mmap_readahead+0x4ae/0x870 mm/filemap.c:3329
 filemap_fault+0x6ac/0x1290 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5320
 do_shared_fault mm/memory.c:5819 [inline]
 do_fault mm/memory.c:5893 [inline]
 do_pte_missing+0x6ad/0x3330 mm/memory.c:4401
 handle_pte_fault mm/memory.c:6273 [inline]
 __handle_mm_fault mm/memory.c:6411 [inline]
 handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580
 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+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fdc48b5737c
Code: 7c 10 8a 0e 74 0a 0f b7 74 16 fe 66 89 74 17 fe 88 0f c3 8b 4c 16 fc 8b 36 89 4c 17 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
RSP: 002b:00007fffb6d4b848 EFLAGS: 00010206
RAX: 0000200000000000 RBX: 0000000000000004 RCX: 800000000000001a
RDX: 000000000000001a RSI: 0000001b2f8200d6 RDI: 0000200000000000
RBP: 00007fdc48de7da0 R08: 0000001b2fc20000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fdc48de618c
R13: 00007fdc48de6180 R14: fffffffffffffffe R15: 00007fffb6d4b960
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__readahead_folio include/linux/pagemap.h:1426 [inline]
RIP: 0010:readahead_folio include/linux/pagemap.h:1452 [inline]
RIP: 0010:mpage_readahead+0x765/0x790 fs/mpage.c:367
Code: c6 80 82 9a 8b e8 0b 9c da fe 90 0f 0b e8 43 87 74 ff 4c 89 ff 48 c7 c6 60 81 9a 8b e8 f4 9b da fe 90 0f 0b e8 2c 87 74 ff 90 <0f> 0b e8 24 87 74 ff 4c 89 ff 48 c7 c6 80 82 9a 8b e8 d5 9b da fe
RSP: 0018:ffffc900033574a0 EFLAGS: 00010293

RAX: ffffffff824d6c04 RBX: 0000000000000010 RCX: ffff888025e59e80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffffc90003357690 R08: ffffea000140cc07 R09: 1ffffd4000281980
R10: dffffc0000000000 R11: fffff94000281981 R12: ffffc90003357908
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90003357920
FS:  0000555583dd5500(0000) GS:ffff888125a03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005628726c2950 CR3: 000000007e448000 CR4: 00000000003526f0