__do_fault+0x138/0x2a0 mm/memory.c:5534 do_read_fault mm/memory.c:5969 [inline] do_fault mm/memory.c:6103 [inline] do_pte_missing+0x2215/0x34b0 mm/memory.c:4663 handle_pte_fault mm/memory.c:6527 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1670/0x2750 mm/gup.c:1428 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860 __mm_populate+0x25f/0x390 mm/gup.c:1963 page last free pid 7611 tgid 7611 ts 178319805229 stack trace: create_dummy_stack mm/page_owner.c:121 [inline] register_dummy_stack+0x98/0x100 mm/page_owner.c:127 init_page_owner+0x2e/0x600 mm/page_owner.c:145 invoke_init_callbacks mm/page_ext.c:152 [inline] page_ext_init+0x50c/0x550 mm/page_ext.c:485 mm_core_init+0x97/0xb0 mm/mm_init.c:2730 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 7615 Comm: syz.3.618 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026 RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858 Code: ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 fe 5e 1f ff 90 0f 0b e8 d6 3e bf ff 48 8b 7c 24 20 48 c7 c6 e0 03 19 8c e8 e5 5e 1f ff 90 <0f> 0b e8 bd 3e bf ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 ce 5e 1f ff RSP: 0018:ffffc900076771a0 EFLAGS: 00010246 RAX: 0a7ea73f81d29500 RBX: 0000000000000000 RCX: 0000000000000046 RDX: ffffc9000f359000 RSI: ffffffff8e82b24f RDI: ffff8880292d1f40 RBP: ffffc90007677338 R08: ffff8880b8524713 R09: 1ffff110170a48e2 R10: dffffc0000000000 R11: ffffed10170a48e3 R12: dffffc0000000000 R13: ffff888026229440 R14: 0000000000000002 R15: ffff888026229558 FS: 00007f21f1ede6c0(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efc9d9eb840 CR3: 000000006374c000 CR4: 00000000003526f0 Call Trace: filemap_add_folio+0x251/0x4e0 mm/filemap.c:972 ra_alloc_folio mm/readahead.c:470 [inline] page_cache_ra_order+0x6d1/0xee0 mm/readahead.c:535 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3443 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3597 __do_fault+0x138/0x2a0 mm/memory.c:5534 do_read_fault mm/memory.c:5969 [inline] do_fault mm/memory.c:6103 [inline] do_pte_missing+0x2215/0x34b0 mm/memory.c:4663 handle_pte_fault mm/memory.c:6527 [inline] __handle_mm_fault mm/memory.c:6676 [inline] handle_mm_fault+0x1a53/0x3750 mm/memory.c:6843 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1670/0x2750 mm/gup.c:1428 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860 __mm_populate+0x25f/0x390 mm/gup.c:1963 mm_populate include/linux/mm.h:4269 [inline] vm_mmap_pgoff+0x353/0x4e0 mm/util.c:586 ksys_mmap_pgoff+0x4dc/0x760 mm/mmap.c:619 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f21f0f9e159 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:00007f21f1ede028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f21f1226090 RCX: 00007f21f0f9e159 RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000 RBP: 00007f21f103506b R08: 0000000000000006 R09: 000000002c93a000 R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f21f1226128 R14: 00007f21f1226090 R15: 00007ffcc5251228 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858 Code: ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 fe 5e 1f ff 90 0f 0b e8 d6 3e bf ff 48 8b 7c 24 20 48 c7 c6 e0 03 19 8c e8 e5 5e 1f ff 90 <0f> 0b e8 bd 3e bf ff 4c 89 f7 48 c7 c6 20 0f 19 8c e8 ce 5e 1f ff RSP: 0018:ffffc900076771a0 EFLAGS: 00010246 RAX: 0a7ea73f81d29500 RBX: 0000000000000000 RCX: 0000000000000046 RDX: ffffc9000f359000 RSI: ffffffff8e82b24f RDI: ffff8880292d1f40 RBP: ffffc90007677338 R08: ffff8880b8524713 R09: 1ffff110170a48e2 R10: dffffc0000000000 R11: ffffed10170a48e3 R12: dffffc0000000000 R13: ffff888026229440 R14: 0000000000000002 R15: ffff888026229558 FS: 00007f21f1ede6c0(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3d10c5 CR3: 000000006374c000 CR4: 00000000003526f0