faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x167f/0x2730 mm/gup.c:1428
 __get_user_pages_locked mm/gup.c:1692 [inline]
 faultin_page_range+0x240/0x8c0 mm/gup.c:1912
 madvise_populate mm/madvise.c:969 [inline]
 madvise_do_behavior+0x2e5/0x540 mm/madvise.c:1927
page last free pid 11560 tgid 11560 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1397 [inline]
 __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
 vfree+0x1d1/0x2f0 mm/vmalloc.c:3472
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3397
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3478
 kthread+0x389/0x470 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:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 29712 Comm: syz.5.5468 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 1c 6b 25 ff 90 0f 0b e8 54 15 c3 ff 4c 89 e7 48 c7 c6 40 ac d7 8b e8 05 6b 25 ff 90 <0f> 0b e8 3d 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 ee 6a 25 ff
RSP: 0018:ffffc90004a0f120 EFLAGS: 00010246
RAX: 6c2b1cc81ca23c00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8e217351 RDI: ffff888027639f00
RBP: ffffc90004a0f2a0 R08: ffffffff903037f7 R09: 1ffffffff20606fe
R10: dffffc0000000000 R11: fffffbfff20606ff R12: ffffea0002383940
R13: dffffc0000000000 R14: ffffea0002383948 R15: 0000000000000004
FS:  00007f5731aab6c0(0000) GS:ffff8881252a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005574275ce008 CR3: 00000000667ab000 CR4: 0000000000350ef0
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+0x138/0x2a0 mm/memory.c:5474
 do_shared_fault mm/memory.c:5973 [inline]
 do_fault mm/memory.c:6047 [inline]
 do_pte_missing+0x601/0x33f0 mm/memory.c:4566
 handle_pte_fault mm/memory.c:6427 [inline]
 __handle_mm_fault mm/memory.c:6565 [inline]
 handle_mm_fault+0x1bf2/0x3170 mm/memory.c:6734
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x167f/0x2730 mm/gup.c:1428
 __get_user_pages_locked mm/gup.c:1692 [inline]
 faultin_page_range+0x240/0x8c0 mm/gup.c:1912
 madvise_populate mm/madvise.c:969 [inline]
 madvise_do_behavior+0x2e5/0x540 mm/madvise.c:1927
 do_madvise+0x1fa/0x2e0 mm/madvise.c:2022
 __do_sys_madvise mm/madvise.c:2031 [inline]
 __se_sys_madvise mm/madvise.c:2029 [inline]
 __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:2029
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5730b9ce59
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:00007f5731aab028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f5730e16270 RCX: 00007f5730b9ce59
RDX: 0000000000000017 RSI: 0000000000c00000 RDI: 0000200000000000
RBP: 00007f5730c32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5730e16308 R14: 00007f5730e16270 R15: 00007ffe7fcb7fa8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 1c 6b 25 ff 90 0f 0b e8 54 15 c3 ff 4c 89 e7 48 c7 c6 40 ac d7 8b e8 05 6b 25 ff 90 <0f> 0b e8 3d 15 c3 ff 4c 89 e7 48 c7 c6 40 b8 d7 8b e8 ee 6a 25 ff
RSP: 0018:ffffc90004a0f120 EFLAGS: 00010246

RAX: 6c2b1cc81ca23c00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8e217351 RDI: ffff888027639f00
RBP: ffffc90004a0f2a0 R08: ffffffff903037f7 R09: 1ffffffff20606fe
R10: dffffc0000000000 R11: fffffbfff20606ff R12: ffffea0002383940
R13: dffffc0000000000 R14: ffffea0002383948 R15: 0000000000000004
FS:  00007f5731aab6c0(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffecf64d688 CR3: 00000000667ab000 CR4: 0000000000350ef0