read_pages+0x3c8/0x5a0 mm/readahead.c:176
------------[ cut here ]------------
kernel BUG at mm/filemap.c:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 10952 Comm: syz.9.959 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: f4 c4 ff 4c 89 e7 48 c7 c6 00 b5 d7 8b e8 fc f0 26 ff 90 0f 0b e8 f4 f3 c4 ff 4c 89 e7 48 c7 c6 60 a9 d7 8b e8 e5 f0 26 ff 90 <0f> 0b e8 dd f3 c4 ff 4c 89 e7 48 c7 c6 00 b5 d7 8b e8 ce f0 26 ff
RSP: 0018:ffffc90005a6f300 EFLAGS: 00010246
RAX: aa86f4f6011e0a00 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfc0ce0 RDI: 00000000ffffffff
RBP: ffffc90005a6f480 R08: ffffffff9031b4f7 R09: 1ffffffff206369e
R10: dffffc0000000000 R11: fffffbfff206369f R12: ffffea000085c500
R13: dffffc0000000000 R14: ffffea000085c508 R15: 0000000000000004
FS:  00007f6f117f96c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000029c CR3: 00000000291a6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:967
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x6a9/0xe80 mm/readahead.c:515
 do_async_mmap_readahead mm/filemap.c:3442 [inline]
 filemap_fault+0x5bf/0x1300 mm/filemap.c:3541
 __do_fault+0x3e7/0x590 mm/memory.c:5501
 do_read_fault mm/memory.c:5936 [inline]
 do_fault mm/memory.c:6070 [inline]
 do_pte_missing+0x2093/0x33f0 mm/memory.c:4550
 handle_pte_fault mm/memory.c:6454 [inline]
 __handle_mm_fault mm/memory.c:6592 [inline]
 handle_mm_fault+0x1bd7/0x3170 mm/memory.c:6761
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1683/0x2720 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:4137 [inline]
 vm_mmap_pgoff+0x3aa/0x4f0 mm/util.c:586
 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:606
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f1099c819
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:00007f6f117f9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6f10c16180 RCX: 00007f6f1099c819
RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f6f10a32c91 R08: 0000000000000004 R09: 000000002c93a000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6f10c16218 R14: 00007f6f10c16180 R15: 00007ffcf77a0778
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: f4 c4 ff 4c 89 e7 48 c7 c6 00 b5 d7 8b e8 fc f0 26 ff 90 0f 0b e8 f4 f3 c4 ff 4c 89 e7 48 c7 c6 60 a9 d7 8b e8 e5 f0 26 ff 90 <0f> 0b e8 dd f3 c4 ff 4c 89 e7 48 c7 c6 00 b5 d7 8b e8 ce f0 26 ff
RSP: 0018:ffffc90005a6f300 EFLAGS: 00010246
RAX: aa86f4f6011e0a00 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfc0ce0 RDI: 00000000ffffffff
RBP: ffffc90005a6f480 R08: ffffffff9031b4f7 R09: 1ffffffff206369e
R10: dffffc0000000000 R11: fffffbfff206369f R12: ffffea000085c500
R13: dffffc0000000000 R14: ffffea000085c508 R15: 0000000000000004
FS:  00007f6f117f96c0(0000) GS:ffff88812535c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbde55e7158 CR3: 00000000291a6000 CR4: 00000000003526f0