loop0: detected capacity change from 0 to 2048 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) ================================================================== BUG: KASAN: out-of-bounds in udf_write_fi+0x910/0xf20 fs/udf/namei.c:93 Write of size 18446744073709551572 at addr ffff888077f7102c by task syz-executor191/5244 CPU: 0 PID: 5244 Comm: syz-executor191 Not tainted 6.1.0-rc3-next-20221104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:253 [inline] print_report+0x15e/0x45d mm/kasan/report.c:364 kasan_report+0xbb/0x1f0 mm/kasan/report.c:464 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 memset+0x20/0x40 mm/kasan/shadow.c:44 udf_write_fi+0x910/0xf20 fs/udf/namei.c:93 udf_rename+0xd7c/0x1260 fs/udf/namei.c:1173 vfs_rename+0x115e/0x1a90 fs/namei.c:4778 do_renameat2+0xb1e/0xc30 fs/namei.c:4929 __do_sys_rename fs/namei.c:4975 [inline] __se_sys_rename fs/namei.c:4973 [inline] __x64_sys_rename+0x7d/0xa0 fs/namei.c:4973 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5e252a78f9 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffa7e990c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5e252a78f9 RDX: 00000000000000f0 RSI: 0000000020000640 RDI: 00000000200001c0 RBP: 00007fffa7e990f0 R08: 0000000000000002 R09: 00007fffa7e99100 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00007fffa7e99130 R14: 00007fffa7e99110 R15: 0000000000000003 The buggy address belongs to the physical page: page:ffffea0001dfdc40 refcount:2 mapcount:0 mapping:ffff88801ab928f8 index:0xb0 pfn:0x77f71 memcg:ffff888140140000 aops:def_blk_aops ino:700000 flags: 0xfff0000000203a(referenced|dirty|lru|active|private|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff0000000203a ffffea0001ec4b88 ffffea000095e288 ffff88801ab928f8 raw: 00000000000000b0 ffff888072c32000 00000002ffffffff ffff888140140000 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 5244, tgid 5244 (syz-executor191), ts 53461972646, free_ts 53266777997 prep_new_page mm/page_alloc.c:2554 [inline] get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4303 __alloc_pages+0x1c7/0x5a0 mm/page_alloc.c:5562 alloc_pages+0x1a6/0x270 mm/mempolicy.c:2285 folio_alloc+0x1c/0x70 mm/mempolicy.c:2295 filemap_alloc_folio+0x2a1/0x340 mm/filemap.c:971 __filemap_get_folio+0x328/0xd90 mm/filemap.c:1965 pagecache_get_page+0x2a/0x280 mm/folio-compat.c:110 find_or_create_page include/linux/pagemap.h:612 [inline] grow_dev_page fs/buffer.c:946 [inline] grow_buffers fs/buffer.c:1011 [inline] __getblk_slow+0x1f4/0xfb0 fs/buffer.c:1038 __getblk_gfp fs/buffer.c:1333 [inline] __bread_gfp+0x228/0x320 fs/buffer.c:1367 sb_bread include/linux/buffer_head.h:338 [inline] udf_tread+0x165/0x1d0 fs/udf/misc.c:44 udf_read_tagged+0x4e/0x690 fs/udf/misc.c:219 udf_read_inode fs/udf/inode.c:1338 [inline] __udf_iget+0x341/0x3890 fs/udf/inode.c:1910 udf_iget fs/udf/udfdecl.h:151 [inline] udf_fill_super+0x10d1/0x1a40 fs/udf/super.c:2285 mount_bdev+0x34d/0x410 fs/super.c:1401 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1531 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1461 [inline] free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1511 free_unref_page_prepare mm/page_alloc.c:3402 [inline] free_unref_page_list+0x172/0xc40 mm/page_alloc.c:3544 release_pages+0x35b/0x12d0 mm/swap.c:1066 __pagevec_release+0x77/0x100 mm/swap.c:1086 pagevec_release include/linux/pagevec.h:71 [inline] folio_batch_release include/linux/pagevec.h:135 [inline] shmem_undo_range+0x884/0x1290 mm/shmem.c:943 shmem_truncate_range mm/shmem.c:1027 [inline] shmem_evict_inode+0x3c6/0xc30 mm/shmem.c:1136 evict+0x2ed/0x6b0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput.part.0+0x59b/0x880 fs/inode.c:1773 iput+0x58/0x70 fs/inode.c:1763 dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:401 __dentry_kill+0x3c0/0x640 fs/dcache.c:607 dentry_kill fs/dcache.c:733 [inline] dput+0x806/0xdb0 fs/dcache.c:913 __fput+0x3cc/0xa90 fs/file_table.c:328 task_work_run+0x16b/0x270 kernel/task_work.c:179 ptrace_notify+0x114/0x140 kernel/signal.c:2354 ptrace_report_syscall include/linux/ptrace.h:420 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:482 [inline] syscall_exit_work kernel/entry/common.c:251 [inline] syscall_exit_to_user_mode_prepare+0x129/0x280 kernel/entry/common.c:278 Memory state around the buggy address: ffff888077f70f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888077f70f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888077f71000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff888077f71080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888077f71100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================