__exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 10809 Comm: syz.1.4571 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 06 c5 ff 4c 89 e7 48 c7 c6 40 b9 d7 8b e8 3c 89 26 ff 90 0f 0b e8 b4 06 c5 ff 4c 89 e7 48 c7 c6 a0 ad d7 8b e8 25 89 26 ff 90 <0f> 0b e8 9d 06 c5 ff 4c 89 e7 48 c7 c6 40 b9 d7 8b e8 0e 89 26 ff
RSP: 0018:ffffc9000da771e0 EFLAGS: 00010246
RAX: 68f8723a400ab900 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8e05f4c1 RDI: 00000000ffffffff
RBP: ffffc9000da77360 R08: ffffffff903444f7 R09: 1ffffffff206889e
R10: dffffc0000000000 R11: fffffbfff206889f R12: ffffea0000c63540
R13: dffffc0000000000 R14: ffffea0000c63548 R15: 0000000000000002
FS:  00007fdfbc6356c0(0000) GS:ffff8881250f3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f667d004000 CR3: 000000005b420000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
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_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3406
 filemap_fault+0x703/0x1300 mm/filemap.c:3555
 __do_fault+0x3e7/0x590 mm/memory.c:5502
 do_read_fault mm/memory.c:5937 [inline]
 do_fault mm/memory.c:6071 [inline]
 do_pte_missing+0x2093/0x33f0 mm/memory.c:4550
 handle_pte_fault mm/memory.c:6455 [inline]
 __handle_mm_fault mm/memory.c:6593 [inline]
 handle_mm_fault+0x1bd7/0x3170 mm/memory.c:6762
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1683/0x2720 mm/gup.c:1428
 populate_vma_page_range+0x29e/0x3c0 mm/gup.c:1860
 __mm_populate+0x25f/0x390 mm/gup.c:1963
 mm_populate include/linux/mm.h:4151 [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+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdfbb79c799
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:00007fdfbc635028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fdfbba16090 RCX: 00007fdfbb79c799
RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fdfbb832c99 R08: 0000000000000004 R09: 0000000000f62000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdfbba16128 R14: 00007fdfbba16090 R15: 00007fffd29b4958
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 06 c5 ff 4c 89 e7 48 c7 c6 40 b9 d7 8b e8 3c 89 26 ff 90 0f 0b e8 b4 06 c5 ff 4c 89 e7 48 c7 c6 a0 ad d7 8b e8 25 89 26 ff 90 <0f> 0b e8 9d 06 c5 ff 4c 89 e7 48 c7 c6 40 b9 d7 8b e8 0e 89 26 ff
RSP: 0018:ffffc9000da771e0 EFLAGS: 00010246

RAX: 68f8723a400ab900 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8e05f4c1 RDI: 00000000ffffffff
RBP: ffffc9000da77360 R08: ffffffff903444f7 R09: 1ffffffff206889e
R10: dffffc0000000000 R11: fffffbfff206889f R12: ffffea0000c63540
R13: dffffc0000000000 R14: ffffea0000c63548 R15: 0000000000000002
FS:  00007fdfbc6356c0(0000) GS:ffff888124ff3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9603b85900 CR3: 000000005b420000 CR4: 00000000003526f0