page: refcount:3 mapcount:1 mapping:ffff8880532c5200 index:0x360 pfn:0x53417 memcg:ffff888034144000 aops:shmem_aops ino:4 flags: 0x4fff6800002002d(locked|referenced|uptodate|lru|swapbacked|node=1|zone=1|lastcpupid=0x7ff) raw: 04fff6800002002d ffffea00014d0588 ffffea00014d0608 ffff8880532c5200 raw: 0000000000000360 0000000000000000 0000000300000000 ffff888034144000 page dumped because: VM_BUG_ON_FOLIO(folio_mapped(folio)) page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 5323, tgid 5322 (syz.0.0), ts 69442015743, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f4/0x240 mm/page_alloc.c:1551 prep_new_page mm/page_alloc.c:1559 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3477 __alloc_frozen_pages_noprof+0x292/0x710 mm/page_alloc.c:4739 alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270 folio_alloc_mpol_noprof+0x36/0x70 mm/mempolicy.c:2289 shmem_alloc_folio mm/shmem.c:1863 [inline] shmem_alloc_and_add_folio+0x4a0/0x1090 mm/shmem.c:1902 shmem_get_folio_gfp+0x621/0x1840 mm/shmem.c:2522 shmem_fault+0x220/0x5b0 mm/shmem.c:2723 __do_fault+0x135/0x390 mm/memory.c:4977 do_read_fault mm/memory.c:5392 [inline] do_fault mm/memory.c:5526 [inline] do_pte_missing mm/memory.c:4047 [inline] handle_pte_fault mm/memory.c:5889 [inline] __handle_mm_fault+0x4c44/0x70f0 mm/memory.c:6032 handle_mm_fault+0x3e5/0x8d0 mm/memory.c:6201 faultin_page mm/gup.c:1196 [inline] __get_user_pages+0x1a92/0x4140 mm/gup.c:1491 populate_vma_page_range+0x264/0x330 mm/gup.c:1929 __mm_populate+0x27a/0x460 mm/gup.c:2032 mm_populate include/linux/mm.h:3386 [inline] vm_mmap_pgoff+0x303/0x430 mm/util.c:580 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 page_owner free stack trace missing ------------[ cut here ]------------ kernel BUG at mm/filemap.c:154! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.14.0-rc2-syzkaller-00056-gab68d7eb7b1a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:filemap_unaccount_folio+0x73d/0x7d0 mm/filemap.c:154 Code: de c7 ff 48 89 df 48 c7 c6 e0 d3 13 8c e8 fb f3 11 00 90 0f 0b e8 a3 de c7 ff 48 89 df 48 c7 c6 c0 d2 13 8c e8 e4 f3 11 00 90 <0f> 0b e8 8c de c7 ff 48 89 df 48 c7 c6 e0 d3 13 8c e8 cd f3 11 00 RSP: 0018:ffffc9000d437490 EFLAGS: 00010046 RAX: 73ab402b2582f000 RBX: ffffea00014d05c0 RCX: ffffc9000d437003 RDX: 0000000000000002 RSI: ffffffff8c0ab8e0 RDI: ffffffff8c608cc0 RBP: 0000000000000000 R08: ffffffff901b6077 R09: 1ffffffff2036c0e R10: dffffc0000000000 R11: fffffbfff2036c0f R12: dffffc0000000000 R13: 1ffffd400029a0b9 R14: ffff8880532c5200 R15: ffffea00014d05c8 FS: 00007f64cb1336c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000040000026f100 CR3: 000000003d8ba000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __filemap_remove_folio+0xc7/0x670 mm/filemap.c:223 filemap_remove_folio+0xe1/0x1f0 mm/filemap.c:256 truncate_inode_folio+0x5d/0x70 mm/truncate.c:162 shmem_undo_range+0x44b/0x1820 mm/shmem.c:1108 shmem_truncate_range mm/shmem.c:1224 [inline] shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1352 evict+0x4e8/0x9a0 fs/inode.c:796 __dentry_kill+0x20d/0x630 fs/dcache.c:643 dput+0x19f/0x2b0 fs/dcache.c:885 __fput+0x60b/0x9f0 fs/file_table.c:472 task_work_run+0x24f/0x310 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f64ca38cde9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f64cb133038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: 0000400000000000 RBX: 00007f64ca5a6160 RCX: 00007f64ca38cde9 RDX: 0000000000000002 RSI: 0000000000b36000 RDI: 0000400000000000 RBP: 00007f64ca40e2a0 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f64ca5a6160 R15: 00007ffe3b6507b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_unaccount_folio+0x73d/0x7d0 mm/filemap.c:154 Code: de c7 ff 48 89 df 48 c7 c6 e0 d3 13 8c e8 fb f3 11 00 90 0f 0b e8 a3 de c7 ff 48 89 df 48 c7 c6 c0 d2 13 8c e8 e4 f3 11 00 90 <0f> 0b e8 8c de c7 ff 48 89 df 48 c7 c6 e0 d3 13 8c e8 cd f3 11 00 RSP: 0018:ffffc9000d437490 EFLAGS: 00010046 RAX: 73ab402b2582f000 RBX: ffffea00014d05c0 RCX: ffffc9000d437003 RDX: 0000000000000002 RSI: ffffffff8c0ab8e0 RDI: ffffffff8c608cc0 RBP: 0000000000000000 R08: ffffffff901b6077 R09: 1ffffffff2036c0e R10: dffffc0000000000 R11: fffffbfff2036c0f R12: dffffc0000000000 R13: 1ffffd400029a0b9 R14: ffff8880532c5200 R15: ffffea00014d05c8 FS: 00007f64cb1336c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000040000026f100 CR3: 000000003d8ba000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400