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: 27792 Comm: syz.9.5645 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__filemap_add_folio+0x1204/0x13a0 mm/filemap.c:858
Code: 5b c5 ff 4c 89 e7 48 c7 c6 20 a5 d7 8b e8 d4 d5 27 ff 90 0f 0b e8 1c 5b c5 ff 4c 89 e7 48 c7 c6 c0 99 d7 8b e8 bd d5 27 ff 90 <0f> 0b e8 05 5b c5 ff 4c 89 e7 48 c7 c6 20 a5 d7 8b e8 a6 d5 27 ff
RSP: 0018:ffffc90006307140 EFLAGS: 00010246
RAX: c62b23fb634f3900 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8def2049 RDI: 00000000ffffffff
RBP: ffffc900063072c0 R08: ffffffff901182b7 R09: 1ffffffff2023056
R10: dffffc0000000000 R11: fffffbfff2023057 R12: ffffea00020bd100
R13: dffffc0000000000 R14: ffff88802386cd80 R15: 0000000000000004
FS:  00007fb41ec6d6c0(0000) GS:ffff888125463000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c36facc00 CR3: 0000000078a86000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x6b5/0xeb0 mm/readahead.c:515
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3405
 filemap_fault+0x6e2/0x1320 mm/filemap.c:3554
 __do_fault+0x138/0x390 mm/memory.c:5366
 do_shared_fault mm/memory.c:5865 [inline]
 do_fault mm/memory.c:5939 [inline]
 do_pte_missing+0x5c4/0x3750 mm/memory.c:4479
 handle_pte_fault mm/memory.c:6319 [inline]
 __handle_mm_fault mm/memory.c:6457 [inline]
 handle_mm_fault+0x1bec/0x3310 mm/memory.c:6626
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x165b/0x29d0 mm/gup.c:1428
 __get_user_pages_locked mm/gup.c:1692 [inline]
 faultin_page_range+0x240/0x8c0 mm/gup.c:1912
 madvise_populate mm/madvise.c:974 [inline]
 madvise_do_behavior+0x2e5/0x540 mm/madvise.c:1933
 do_madvise+0x1fa/0x2e0 mm/madvise.c:2028
 __do_sys_madvise mm/madvise.c:2037 [inline]
 __se_sys_madvise mm/madvise.c:2035 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:2035
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb41dd9bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb41ec6d028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fb41e016180 RCX: 00007fb41dd9bf79
RDX: 0000000000000017 RSI: 0000000000800000 RDI: 00002000000ec000
RBP: 00007fb41de327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb41e016218 R14: 00007fb41e016180 R15: 00007fff13844b18
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---