REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop0): checking transaction log (loop0) REISERFS (device loop0): Using r5 hash to sort names reiserfs: enabling write barrier flush mode ================================================================== BUG: KASAN: out-of-bounds in leaf_paste_entries+0x963/0x13a0 fs/reiserfs/lbalance.c:1377 Read of size 18446744073709551584 at addr ffff88807634afa4 by task syz-executor326/5058 CPU: 0 PID: 5058 Comm: syz-executor326 Not tainted 6.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x142/0x170 mm/kasan/report.c:588 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:187 __asan_memmove+0x29/0x70 mm/kasan/shadow.c:94 leaf_paste_entries+0x963/0x13a0 fs/reiserfs/lbalance.c:1377 balance_leaf_finish_node_paste_dirent fs/reiserfs/do_balan.c:1295 [inline] balance_leaf_finish_node_paste fs/reiserfs/do_balan.c:1321 [inline] balance_leaf_finish_node fs/reiserfs/do_balan.c:1364 [inline] balance_leaf+0xbd22/0x12510 fs/reiserfs/do_balan.c:1452 do_balance+0x30d/0x8f0 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x732/0x870 fs/reiserfs/stree.c:2158 reiserfs_add_entry+0x9bc/0xd50 fs/reiserfs/namei.c:565 reiserfs_mkdir+0x6c0/0x8f0 fs/reiserfs/namei.c:860 xattr_mkdir fs/reiserfs/xattr.c:77 [inline] create_privroot fs/reiserfs/xattr.c:891 [inline] reiserfs_xattr_init+0x323/0x670 fs/reiserfs/xattr.c:1007 reiserfs_remount+0x12bc/0x18f0 fs/reiserfs/super.c:1586 reconfigure_super+0x440/0x870 fs/super.c:1143 do_remount fs/namespace.c:2884 [inline] path_mount+0xc24/0xfa0 fs/namespace.c:3656 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff06b2bdeba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd84099758 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007ff06b2bdeba RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 0000000000000000 RBP: 00007ffd840997f0 R08: 00007ffd840997f0 R09: 0000000000000000 R10: 0000000001a484bc R11: 0000000000000286 R12: 0000000020000100 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000d80 The buggy address belongs to the physical page: page:ffffea0001d8d280 refcount:3 mapcount:0 mapping:ffff888148e2aaf8 index:0x213 pfn:0x7634a memcg:ffff888016262000 aops:def_blk_aops ino:700000 flags: 0xfff00000008104(referenced|active|private|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000008104 0000000000000000 dead000000000122 ffff888148e2aaf8 raw: 0000000000000213 ffff888076514e80 00000003ffffffff ffff888016262000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 5058, tgid 5058 (syz-executor326), ts 71008307659, free_ts 70920723530 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x339a/0x3530 mm/page_alloc.c:3312 __alloc_pages+0x255/0x670 mm/page_alloc.c:4568 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133 alloc_pages mm/mempolicy.c:2204 [inline] folio_alloc+0x12a/0x330 mm/mempolicy.c:2211 filemap_alloc_folio+0xde/0x500 mm/filemap.c:974 __filemap_get_folio+0x431/0xbb0 mm/filemap.c:1918 grow_dev_page fs/buffer.c:1041 [inline] grow_buffers fs/buffer.c:1106 [inline] __getblk_slow fs/buffer.c:1133 [inline] bdev_getblk+0x246/0x6d0 fs/buffer.c:1429 __getblk include/linux/buffer_head.h:358 [inline] sb_getblk include/linux/buffer_head.h:364 [inline] search_by_key+0x4a5/0x4950 fs/reiserfs/stree.c:672 reiserfs_read_locked_inode+0x240/0x2950 fs/reiserfs/inode.c:1543 reiserfs_fill_super+0x1363/0x2620 fs/reiserfs/super.c:2071 mount_bdev+0x237/0x300 fs/super.c:1650 legacy_get_tree+0xef/0x190 fs/fs_context.c:662 vfs_get_tree+0x8c/0x280 fs/super.c:1771 do_new_mount+0x28f/0xae0 fs/namespace.c:3337 do_mount fs/namespace.c:3677 [inline] __do_sys_mount fs/namespace.c:3886 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x92a/0xa50 mm/page_alloc.c:2347 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2533 release_pages+0x2113/0x23f0 mm/swap.c:1042 tlb_batch_pages_flush mm/mmu_gather.c:98 [inline] tlb_flush_mmu_free mm/mmu_gather.c:293 [inline] tlb_flush_mmu+0x34c/0x4e0 mm/mmu_gather.c:300 tlb_finish_mmu+0xd4/0x1f0 mm/mmu_gather.c:392 unmap_region+0x300/0x350 mm/mmap.c:2341 do_vmi_align_munmap+0x121e/0x1850 mm/mmap.c:2657 do_vmi_munmap+0x24d/0x2d0 mm/mmap.c:2725 __vm_munmap+0x230/0x450 mm/mmap.c:3012 __do_sys_munmap mm/mmap.c:3029 [inline] __se_sys_munmap mm/mmap.c:3026 [inline] __x64_sys_munmap+0x69/0x80 mm/mmap.c:3026 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b Memory state around the buggy address: ffff88807634ae80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807634af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88807634af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88807634b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807634b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================