REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. ================================================================== BUG: KASAN: out-of-bounds in leaf_paste_in_buffer+0x1bc/0xab0 fs/reiserfs/lbalance.c:1017 Read of size 18446744073709551305 at addr ffff88806d702000 by task syz-executor105/5055 CPU: 0 PID: 5055 Comm: syz-executor105 Not tainted 6.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 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_in_buffer+0x1bc/0xab0 fs/reiserfs/lbalance.c:1017 balance_leaf_new_nodes_paste_whole fs/reiserfs/do_balan.c:1171 [inline] balance_leaf_new_nodes_paste fs/reiserfs/do_balan.c:1215 [inline] balance_leaf_new_nodes fs/reiserfs/do_balan.c:1246 [inline] balance_leaf+0x6680/0x12510 fs/reiserfs/do_balan.c:1450 do_balance+0x30d/0x8f0 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x734/0x880 fs/reiserfs/stree.c:2158 reiserfs_get_block+0x2250/0x5130 fs/reiserfs/inode.c:1069 __block_write_begin_int+0x54d/0x1ad0 fs/buffer.c:2119 reiserfs_write_begin+0x24d/0x520 fs/reiserfs/inode.c:2767 generic_cont_expand_simple+0x18b/0x2a0 fs/buffer.c:2473 reiserfs_setattr+0x57d/0x1140 fs/reiserfs/inode.c:3298 notify_change+0xb99/0xe60 fs/attr.c:499 do_truncate+0x220/0x300 fs/open.c:66 do_sys_ftruncate+0x2f3/0x390 fs/open.c:194 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff2368c6419 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 1f 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff236879168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007ff2369496e8 RCX: 00007ff2368c6419 RDX: 00007ff2368c6419 RSI: 0000000002007fff RDI: 0000000000000005 RBP: 00007ff2369496e0 R08: 00007ff2368796c0 R09: 0000000000000000 R10: 00007ff2368796c0 R11: 0000000000000246 R12: 00007ff2369496ec R13: 0000000000000000 R14: 00007ffe3124e730 R15: 00007ffe3124e818 The buggy address belongs to the physical page: page:ffffea0001b5c080 refcount:1 mapcount:1 mapping:0000000000000000 index:0x55c935066 pfn:0x6d702 memcg:ffff888016262000 anon flags: 0xfff000000a0028(uptodate|lru|mappedtodisk|swapbacked|node=0|zone=1|lastcpupid=0x7ff) page_type: 0x0() raw: 00fff000000a0028 ffffea0001b51848 ffffea0001b5c0c8 ffff888026683771 raw: 000000055c935066 0000000000000000 0000000100000000 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 0x140cca(GFP_HIGHUSER_MOVABLE|__GFP_COMP), pid 4511, tgid 4511 (udevd), ts 60347023431, free_ts 17796882344 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+0x33ea/0x3570 mm/page_alloc.c:3312 __alloc_pages+0x255/0x680 mm/page_alloc.c:4568 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133 vma_alloc_folio+0xf3/0x3f0 mm/mempolicy.c:2172 wp_page_copy mm/memory.c:3119 [inline] do_wp_page+0x125e/0x4d40 mm/memory.c:3510 handle_pte_fault mm/memory.c:5054 [inline] __handle_mm_fault mm/memory.c:5179 [inline] handle_mm_fault+0x1b1c/0x6680 mm/memory.c:5344 do_user_addr_fault arch/x86/mm/fault.c:1364 [inline] handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x456/0x870 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 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+0x931/0xa60 mm/page_alloc.c:2347 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487 free_contig_range+0x9e/0x160 mm/page_alloc.c:6536 destroy_args+0x8a/0x890 mm/debug_vm_pgtable.c:1028 debug_vm_pgtable+0x4ba/0x540 mm/debug_vm_pgtable.c:1408 do_one_initcall+0x234/0x810 init/main.c:1236 do_initcall_level+0x157/0x210 init/main.c:1298 do_initcalls+0x3f/0x80 init/main.c:1314 kernel_init_freeable+0x429/0x5c0 init/main.c:1551 kernel_init+0x1d/0x2a0 init/main.c:1441 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Memory state around the buggy address: ffff88806d701f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88806d701f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88806d702000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88806d702080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88806d702100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================