exit_mmap+0x4b2/0x9f0 mm/mmap.c:1328
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x221/0x2d0 kernel/exit.c:618
 do_exit+0x6cd/0x2360 kernel/exit.c:1000
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1155
 get_signal+0x121b/0x12c0 kernel/signal.c:3112
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 7209 Comm: syz.4.469 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 00 09 19 8c e8 4e 8b 1f ff 90 0f 0b e8 56 45 bf ff 48 8b 7c 24 20 48 c7 c6 c0 fd 18 8c e8 35 8b 1f ff 90 <0f> 0b e8 3d 45 bf ff 4c 89 f7 48 c7 c6 00 09 19 8c e8 1e 8b 1f ff
RSP: 0018:ffffc900050ef1a0 EFLAGS: 00010246
RAX: 5006e7093025d200 RBX: 0000000000000000 RCX: 0000000000000046
RDX: ffffc9000fd87000 RSI: ffffffff8e69da56 RDI: ffff8880303dbe80
RBP: ffffc900050ef338 R08: ffff8880b8724713 R09: 1ffff110170e48e2
R10: dffffc0000000000 R11: ffffed10170e48e3 R12: dffffc0000000000
R13: ffff8880238bfbc0 R14: 0000000000000002 R15: ffff8880238bfcd8
FS:  00007f69404336c0(0000) GS:ffff888124dcb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f693f5eb840 CR3: 000000002a35f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 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:5565
 do_read_fault mm/memory.c:6000 [inline]
 do_fault mm/memory.c:6134 [inline]
 do_pte_missing+0x2215/0x34b0 mm/memory.c:4700
 handle_pte_fault mm/memory.c:6558 [inline]
 __handle_mm_fault mm/memory.c:6707 [inline]
 handle_mm_fault+0x1a53/0x3750 mm/memory.c:6876
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1675/0x2750 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:4288 [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: 0033:0x7f693f59e159
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:00007f6940433028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f693f826090 RCX: 00007f693f59e159
RDX: 0000000000000007 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f693f63506b R08: 0000000000000004 R09: 000000002cb25000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f693f826128 R14: 00007f693f826090 R15: 00007fff596fbea8
 </TASK>
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 00 09 19 8c e8 4e 8b 1f ff 90 0f 0b e8 56 45 bf ff 48 8b 7c 24 20 48 c7 c6 c0 fd 18 8c e8 35 8b 1f ff 90 <0f> 0b e8 3d 45 bf ff 4c 89 f7 48 c7 c6 00 09 19 8c e8 1e 8b 1f ff
RSP: 0018:ffffc900050ef1a0 EFLAGS: 00010246
RAX: 5006e7093025d200 RBX: 0000000000000000 RCX: 0000000000000046
RDX: ffffc9000fd87000 RSI: ffffffff8e69da56 RDI: ffff8880303dbe80
RBP: ffffc900050ef338 R08: ffff8880b8724713 R09: 1ffff110170e48e2
R10: dffffc0000000000 R11: ffffed10170e48e3 R12: dffffc0000000000
R13: ffff8880238bfbc0 R14: 0000000000000002 R15: ffff8880238bfcd8
FS:  00007f69404336c0(0000) GS:ffff888124ccb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f659b027dac CR3: 000000002a35f000 CR4: 0000000000350ef0