loop2: detected capacity change from 0 to 2048 ================================================================== BUG: KASAN: out-of-bounds in udf_write_fi+0x50d/0xc30 fs/udf/namei.c:93 Write of size 18446744073709551572 at addr ffff8880a387c02c by task syz-executor.2/25179 CPU: 1 PID: 25179 Comm: syz-executor.2 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x65/0x4b0 mm/kasan/report.c:317 print_report+0x108/0x1f0 mm/kasan/report.c:433 kasan_report+0xc3/0xf0 mm/kasan/report.c:495 kasan_check_range+0x2a7/0x2e0 mm/kasan/generic.c:189 memset+0x1f/0x40 mm/kasan/shadow.c:44 udf_write_fi+0x50d/0xc30 fs/udf/namei.c:93 udf_delete_entry fs/udf/namei.c:577 [inline] udf_rename+0x90c/0x15f0 fs/udf/namei.c:1173 vfs_rename+0xd53/0x1130 fs/namei.c:4756 do_renameat2+0xb53/0x1370 fs/namei.c:4907 __do_sys_rename fs/namei.c:4953 [inline] __se_sys_rename fs/namei.c:4951 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:4951 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+0x63/0xcd RIP: 0033:0x7fc7f5a8b5a9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc7f6cbd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007fc7f5babf80 RCX: 00007fc7f5a8b5a9 RDX: 0000000000000000 RSI: 0000000020006480 RDI: 0000000020004d00 RBP: 00007fc7f6cbd1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffcee8a554f R14: 00007fc7f6cbd300 R15: 0000000000022000 The buggy address belongs to the physical page: page:ffffea00028e1f00 refcount:2 mapcount:0 mapping:ffff888140c0a8f8 index:0xb0 pfn:0xa387c memcg:ffff8880774ec000 aops:def_blk_aops ino:700002 flags: 0xfff0000000203a(referenced|dirty|lru|active|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff0000000203a ffffea0002bc9608 ffffea0002b39388 ffff888140c0a8f8 raw: 00000000000000b0 ffff88806f6a9cb0 00000002ffffffff ffff8880774ec000 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 25179, tgid 25178 (syz-executor.2), ts 1665951651496, free_ts 1665950008402 prep_new_page mm/page_alloc.c:2532 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4283 __alloc_pages+0x259/0x560 mm/page_alloc.c:5549 folio_alloc+0x1a/0x50 mm/mempolicy.c:2280 filemap_alloc_folio+0x7e/0x1c0 mm/filemap.c:970 __filemap_get_folio+0x888/0x1250 mm/filemap.c:1970 pagecache_get_page+0x2a/0x240 mm/folio-compat.c:104 find_or_create_page include/linux/pagemap.h:613 [inline] grow_dev_page+0xba/0x920 fs/buffer.c:946 grow_buffers fs/buffer.c:1011 [inline] __getblk_slow fs/buffer.c:1038 [inline] __getblk_gfp+0x16c/0x290 fs/buffer.c:1333 __bread_gfp+0x28/0x320 fs/buffer.c:1378 udf_read_tagged+0x10f/0xaf0 fs/udf/misc.c:219 udf_read_inode+0x263/0x3aa0 fs/udf/inode.c:1344 __udf_iget+0x136/0x230 fs/udf/inode.c:1916 udf_iget fs/udf/udfdecl.h:151 [inline] udf_fill_super+0x1009/0x1ae0 fs/udf/super.c:2285 mount_bdev+0x26c/0x3a0 fs/super.c:1400 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1530 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1449 [inline] free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1499 free_unref_page_prepare mm/page_alloc.c:3380 [inline] free_unref_page_list+0xb4/0x7b0 mm/page_alloc.c:3522 release_pages+0x22c3/0x2540 mm/swap.c:1012 tlb_batch_pages_flush mm/mmu_gather.c:58 [inline] tlb_flush_mmu_free mm/mmu_gather.c:255 [inline] tlb_flush_mmu+0x850/0xa70 mm/mmu_gather.c:262 zap_pte_range+0x18e9/0x19b0 mm/memory.c:1526 zap_pmd_range+0x587/0x690 mm/memory.c:1575 zap_pud_range mm/memory.c:1604 [inline] zap_p4d_range mm/memory.c:1625 [inline] unmap_page_range+0x466/0x7a0 mm/memory.c:1646 unmap_vmas+0x1f7/0x380 mm/memory.c:1731 exit_mmap+0x1b4/0x520 mm/mmap.c:3116 __mmput+0x111/0x3a0 kernel/fork.c:1187 exit_mm+0x1ef/0x2c0 kernel/exit.c:510 do_exit+0x635/0x2280 kernel/exit.c:800 do_group_exit+0x1fd/0x2b0 kernel/exit.c:943 get_signal+0x1716/0x1770 kernel/signal.c:2858 arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:166 Memory state around the buggy address: ffff8880a387bf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a387bf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880a387c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff8880a387c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880a387c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================