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+0x95f/0x13a0 fs/reiserfs/lbalance.c:1377 Read of size 18446744073709551584 at addr ffff888070038fa4 by task syz-executor154/3498 CPU: 0 PID: 3498 Comm: syz-executor154 Not tainted 5.15.124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 memmove+0x25/0x60 mm/kasan/shadow.c:54 leaf_paste_entries+0x95f/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+0xbd1e/0x12510 fs/reiserfs/do_balan.c:1452 do_balance+0x309/0x8f0 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x73b/0x880 fs/reiserfs/stree.c:2159 reiserfs_add_entry+0x9b8/0xd70 fs/reiserfs/namei.c:567 reiserfs_mkdir+0x6bc/0x8f0 fs/reiserfs/namei.c:862 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x348/0x730 fs/reiserfs/xattr.c:1012 reiserfs_remount+0x12b8/0x18e0 fs/reiserfs/super.c:1588 reconfigure_super+0x3c5/0x7c0 fs/super.c:916 do_remount fs/namespace.c:2656 [inline] path_mount+0xceb/0x10a0 fs/namespace.c:3316 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f4729fcdefa 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:00007ffd34681498 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f4729fcdefa RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 0000000000000000 RBP: 00007ffd34681530 R08: 00007ffd34681530 R09: 0000000000000000 R10: 0000000001a484bc R11: 0000000000000286 R12: 0000000020000100 R13: 00000000200000c0 R14: 0000000000000000 R15: 0000000020000d80 The buggy address belongs to the page: page:ffffea0001c00e00 refcount:2 mapcount:0 mapping:ffff8881408937b0 index:0x213 pfn:0x70038 memcg:ffff8881407a4000 aops:def_blk_aops ino:700000 flags: 0xfff00000002032(referenced|lru|active|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000002032 ffffea0001c00ec8 ffffea00006bfac8 ffff8881408937b0 raw: 0000000000000213 ffff888074385e80 00000002ffffffff ffff8881407a4000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x108c48(GFP_NOFS|__GFP_NOFAIL|__GFP_HARDWALL|__GFP_MOVABLE), pid 3498, ts 54018545913, free_ts 53899099281 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421 __page_cache_alloc+0xd4/0x4a0 mm/filemap.c:1022 pagecache_get_page+0xa91/0x1010 mm/filemap.c:1940 find_or_create_page include/linux/pagemap.h:420 [inline] grow_dev_page fs/buffer.c:949 [inline] grow_buffers fs/buffer.c:1014 [inline] __getblk_slow fs/buffer.c:1041 [inline] __getblk_gfp+0x22a/0xaf0 fs/buffer.c:1336 sb_getblk include/linux/buffer_head.h:361 [inline] search_by_key+0x46d/0x4730 fs/reiserfs/stree.c:672 reiserfs_read_locked_inode+0x23c/0x2950 fs/reiserfs/inode.c:1557 reiserfs_fill_super+0x11bf/0x2690 fs/reiserfs/super.c:2075 mount_bdev+0x2c9/0x3f0 fs/super.c:1378 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611 vfs_get_tree+0x88/0x270 fs/super.c:1508 do_new_mount+0x28b/0xae0 fs/namespace.c:2994 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433 release_pages+0x1bb9/0x1f40 mm/swap.c:963 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338 exit_mmap+0x3cd/0x670 mm/mmap.c:3188 __mmput+0x112/0x3b0 kernel/fork.c:1118 exec_mmap+0x543/0x630 fs/exec.c:1036 begin_new_exec+0x75d/0xfe0 fs/exec.c:1294 load_elf_binary+0x945/0x2750 fs/binfmt_elf.c:1001 search_binary_handler fs/exec.c:1734 [inline] exec_binprm fs/exec.c:1775 [inline] bprm_execve+0x8fd/0x17c0 fs/exec.c:1844 do_execveat_common+0x583/0x720 fs/exec.c:1949 do_execve fs/exec.c:2019 [inline] __do_sys_execve fs/exec.c:2095 [inline] __se_sys_execve fs/exec.c:2090 [inline] __x64_sys_execve+0x8e/0xa0 fs/exec.c:2090 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb Memory state around the buggy address: ffff888070038e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888070038f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888070038f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff888070039000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888070039080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================