page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x10 pfn:0x52694 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff888030a90d00 flags: 0x4fff00000000041(locked|head|node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000041 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000010 0000000000000000 00000001ffffffff ffff888030a90d00 head: 04fff00000000041 0000000000000000 dead000000000122 0000000000000000 head: 0000000000000010 0000000000000000 00000001ffffffff ffff888030a90d00 head: 04fff00000000202 ffffea000149a501 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 page dumped because: VM_BUG_ON_FOLIO(folio_order(folio) < mapping_min_folio_order(mapping)) page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5333, tgid 5332 (syz.0.0), ts 86175002574, free_ts 86134101047 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419 alloc_frozen_pages_noprof mm/mempolicy.c:2490 [inline] alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2510 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2520 filemap_alloc_folio_noprof+0xdf/0x470 mm/filemap.c:1007 ractl_alloc_folio mm/readahead.c:186 [inline] ra_alloc_folio mm/readahead.c:441 [inline] page_cache_ra_order+0x5e5/0xc70 mm/readahead.c:509 do_sync_mmap_readahead+0x4b5/0x5f0 mm/filemap.c:3271 filemap_fault+0x62a/0x1200 mm/filemap.c:3412 __do_fault+0x138/0x390 mm/memory.c:5169 do_read_fault mm/memory.c:5590 [inline] do_fault mm/memory.c:5724 [inline] do_pte_missing mm/memory.c:4251 [inline] handle_pte_fault mm/memory.c:6069 [inline] __handle_mm_fault+0x37ed/0x5620 mm/memory.c:6212 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6381 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 page last free pid 5334 tgid 5332 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] free_unref_folios+0xc66/0x14d0 mm/page_alloc.c:2763 folios_put_refs+0x559/0x640 mm/swap.c:992 folio_batch_release include/linux/pagevec.h:101 [inline] truncate_inode_pages_range+0x346/0xda0 mm/truncate.c:383 kill_bdev block/bdev.c:91 [inline] set_blocksize+0x32a/0x500 block/bdev.c:207 blkdev_bszset+0x1ac/0x220 block/ioctl.c:553 blkdev_ioctl+0x430/0x6d0 block/ioctl.c:687 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:868! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5333 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00072-gee88bddf7f2f #0 PREEMPT(full) 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_add_folio+0x11ad/0x12f0 mm/filemap.c:867 Code: fd c8 ff 4c 89 e7 48 c7 c6 e0 37 94 8b e8 fb a3 10 00 90 0f 0b e8 63 fd c8 ff 4c 89 e7 48 c7 c6 c0 2e 94 8b e8 e4 a3 10 00 90 <0f> 0b e8 4c fd c8 ff 4c 89 e7 48 c7 c6 e0 37 94 8b e8 cd a3 10 00 RSP: 0018:ffffc9000d61f300 EFLAGS: 00010246 RAX: f96482b9ae964500 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d982307 RDI: 00000000ffffffff RBP: ffffc9000d61f468 R08: ffffffff8fa10bf7 R09: 1ffffffff1f4217e R10: dffffc0000000000 R11: fffffbfff1f4217f R12: ffffea000149a500 R13: dffffc0000000000 R14: ffffea000149a508 R15: 0000000000000004 FS: 00007ff3b46b46c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff3a85ff000 CR3: 0000000043e0c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: filemap_add_folio+0xd5/0x270 mm/filemap.c:969 ra_alloc_folio mm/readahead.c:448 [inline] page_cache_ra_order+0x74c/0xc70 mm/readahead.c:509 do_sync_mmap_readahead+0x4b5/0x5f0 mm/filemap.c:3271 filemap_fault+0x62a/0x1200 mm/filemap.c:3412 __do_fault+0x138/0x390 mm/memory.c:5169 do_read_fault mm/memory.c:5590 [inline] do_fault mm/memory.c:5724 [inline] do_pte_missing mm/memory.c:4251 [inline] handle_pte_fault mm/memory.c:6069 [inline] __handle_mm_fault+0x37ed/0x5620 mm/memory.c:6212 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6381 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:rep_movs_alternative+0x30/0x90 arch/x86/lib/copy_user_64.S:60 Code: 83 f9 08 73 25 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 e9 7d 00 04 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 RSP: 0018:ffffc9000d61fc98 EFLAGS: 00050202 RAX: 00007ffffffff001 RBX: 0000000000000028 RCX: 0000000000000028 RDX: 0000000000000001 RSI: 0000200000000600 RDI: ffffc9000d61fd00 RBP: ffffc9000d61fdb0 R08: ffffc9000d61fd27 R09: 1ffff92001ac3fa4 R10: dffffc0000000000 R11: fffff52001ac3fa5 R12: ffffc9000d61fd00 R13: 0000000000000000 R14: ffffc9000d61fd00 R15: 0000200000000600 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:178 [inline] _copy_from_user+0x7a/0xb0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] get_user_ifreq net/socket.c:3324 [inline] sock_do_ioctl+0x182/0x300 net/socket.c:1202 sock_ioctl+0x576/0x790 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff3b378e929 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:00007ff3b46b4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff3b39b5fa0 RCX: 00007ff3b378e929 RDX: 0000200000000600 RSI: 0000000000008933 RDI: 0000000000000003 RBP: 00007ff3b3810b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff3b39b5fa0 R15: 00007ffd6f3c5328 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867 Code: fd c8 ff 4c 89 e7 48 c7 c6 e0 37 94 8b e8 fb a3 10 00 90 0f 0b e8 63 fd c8 ff 4c 89 e7 48 c7 c6 c0 2e 94 8b e8 e4 a3 10 00 90 <0f> 0b e8 4c fd c8 ff 4c 89 e7 48 c7 c6 e0 37 94 8b e8 cd a3 10 00 RSP: 0018:ffffc9000d61f300 EFLAGS: 00010246 RAX: f96482b9ae964500 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d982307 RDI: 00000000ffffffff RBP: ffffc9000d61f468 R08: ffffffff8fa10bf7 R09: 1ffffffff1f4217e R10: dffffc0000000000 R11: fffffbfff1f4217f R12: ffffea000149a500 R13: dffffc0000000000 R14: ffffea000149a508 R15: 0000000000000004 FS: 00007ff3b46b46c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd6f3c4b40 CR3: 0000000043e0c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 83 f9 08 cmp $0x8,%ecx 3: 73 25 jae 0x2a 5: 85 c9 test %ecx,%ecx 7: 74 0f je 0x18 9: 8a 06 mov (%rsi),%al b: 88 07 mov %al,(%rdi) d: 48 ff c7 inc %rdi 10: 48 ff c6 inc %rsi 13: 48 ff c9 dec %rcx 16: 75 f1 jne 0x9 18: e9 7d 00 04 00 jmp 0x4009a 1d: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 24: 00 00 00 27: 0f 1f 00 nopl (%rax) * 2a: 48 8b 06 mov (%rsi),%rax <-- trapping instruction 2d: 48 89 07 mov %rax,(%rdi) 30: 48 83 c6 08 add $0x8,%rsi 34: 48 83 c7 08 add $0x8,%rdi 38: 83 e9 08 sub $0x8,%ecx 3b: 74 db je 0x18 3d: 83 f9 08 cmp $0x8,%ecx