loop4: 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 18446744073709551574 at addr ffff88803c5f702a by task syz-executor.4/15581 CPU: 1 PID: 15581 Comm: syz-executor.4 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: 0033:0x7ff238a8b5a9 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:00007ff239b21168 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007ff238babf80 RCX: 00007ff238a8b5a9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000020000140 RBP: 00007ff239b211d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffca96d978f R14: 00007ff239b21300 R15: 0000000000022000 The buggy address belongs to the physical page: page:ffffea0000f17dc0 refcount:3 mapcount:0 mapping:ffff888140c154f8 index:0xa8 pfn:0x3c5f7 memcg:ffff888079a20000 aops:def_blk_aops ino:700004 flags: 0xfff0000000202a(referenced|dirty|active|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff0000000202a 0000000000000000 dead000000000122 ffff888140c154f8 raw: 00000000000000a8 ffff88803bce9488 00000003ffffffff ffff888079a20000 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 15581, tgid 15579 (syz-executor.4), ts 1190976207805, free_ts 1190759268894 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_find_entry+0x1093/0x14f0 fs/udf/namei.c:206 udf_lookup+0xef/0x340 fs/udf/namei.c:309 lookup_open fs/namei.c:3391 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x10e6/0x2df0 fs/namei.c:3688 do_filp_open+0x264/0x4f0 fs/namei.c:3718 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_creat fs/open.c:1402 [inline] __se_sys_creat fs/open.c:1396 [inline] __x64_sys_creat+0x11f/0x160 fs/open.c:1396 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 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 __pagevec_release+0x7d/0xf0 mm/swap.c:1032 pagevec_release include/linux/pagevec.h:71 [inline] folio_batch_release include/linux/pagevec.h:135 [inline] shmem_undo_range+0x84a/0x2510 mm/shmem.c:956 shmem_truncate_range mm/shmem.c:1044 [inline] shmem_evict_inode+0x279/0xa90 mm/shmem.c:1142 evict+0x2a4/0x620 fs/inode.c:664 __dentry_kill+0x3b1/0x5b0 fs/dcache.c:607 dentry_kill+0xbb/0x290 dput+0x1f3/0x410 fs/dcache.c:913 __fput+0x5e4/0x880 fs/file_table.c:328 task_work_run+0x146/0x1c0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:169 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:294 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 Memory state around the buggy address: ffff88803c5f6f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803c5f6f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88803c5f7000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88803c5f7080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88803c5f7100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================