handle_softirqs+0x226/0x860 kernel/softirq.c:645
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 5688 Comm: syz-executor584 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__filemap_add_folio+0x128c/0x1400 mm/filemap.c:858
Code: ff 4c 89 f7 48 c7 c6 c0 0b 19 8c e8 be 7d 1f ff 90 0f 0b e8 d6 49 bf ff 48 8b 7c 24 20 48 c7 c6 80 00 19 8c e8 a5 7d 1f ff 90 <0f> 0b e8 bd 49 bf ff 4c 89 f7 48 c7 c6 c0 0b 19 8c e8 8e 7d 1f ff
RSP: 0018:ffffc9000368f1a0 EFLAGS: 00010246
RAX: dae88611a5c03b00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e69f504 RDI: ffff88802bf19f40
RBP: ffffc9000368f338 R08: ffff8880b8724713 R09: 1ffff110170e48e2
R10: dffffc0000000000 R11: ffffed10170e48e3 R12: dffffc0000000000
R13: ffff88802396c240 R14: 0000000000000002 R15: ffff88802396c358
FS:  000055556b340400(0000) GS:ffff888124dc7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556b340340 CR3: 000000007f3f0000 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: 0033:0x7f0863c87639
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff931bfd98 EFLAGS: 00000216 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0863c87639
RDX: 0000000000000007 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00000000000f4240 R08: 0000000000000004 R09: 000000002cb25000
R10: 0000000000028011 R11: 0000000000000216 R12: 0000000000014f45
R13: 00007fff931bfdbc R14: 00007fff931bfdd0 R15: 00007fff931bfdc0
 </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 c0 0b 19 8c e8 be 7d 1f ff 90 0f 0b e8 d6 49 bf ff 48 8b 7c 24 20 48 c7 c6 80 00 19 8c e8 a5 7d 1f ff 90 <0f> 0b e8 bd 49 bf ff 4c 89 f7 48 c7 c6 c0 0b 19 8c e8 8e 7d 1f ff
RSP: 0018:ffffc9000368f1a0 EFLAGS: 00010246
RAX: dae88611a5c03b00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e69f504 RDI: ffff88802bf19f40
RBP: ffffc9000368f338 R08: ffff8880b8724713 R09: 1ffff110170e48e2
R10: dffffc0000000000 R11: ffffed10170e48e3 R12: dffffc0000000000
R13: ffff88802396c240 R14: 0000000000000002 R15: ffff88802396c358
FS:  000055556b340400(0000) GS:ffff888124dc7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556b340340 CR3: 000000007f3f0000 CR4: 0000000000350ef0