------------[ cut here ]------------ WARNING: CPU: 1 PID: 31405 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:125 [inline] WARNING: CPU: 1 PID: 31405 at fs/udf/udfdecl.h:123 udf_bitmap_prealloc_blocks fs/udf/balloc.c:237 [inline] WARNING: CPU: 1 PID: 31405 at fs/udf/udfdecl.h:123 udf_prealloc_blocks+0xf07/0x1310 fs/udf/balloc.c:704 Modules linked in: CPU: 1 PID: 31405 Comm: syz-executor.5 Not tainted 6.3.0-syzkaller-11733-g825a0714d2b3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_free_space fs/udf/balloc.c:125 [inline] RIP: 0010:udf_bitmap_prealloc_blocks fs/udf/balloc.c:237 [inline] RIP: 0010:udf_prealloc_blocks+0xf07/0x1310 fs/udf/balloc.c:704 Code: 01 00 00 0f 85 15 04 00 00 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 33 89 8d fe e9 4b f7 ff ff e8 29 89 8d fe <0f> 0b e9 67 f8 ff ff e8 1d 89 8d fe 0f 0b e9 c9 fe ff ff 89 d9 80 RSP: 0018:ffffc9000d7d6900 EFLAGS: 00010287 RAX: ffffffff82fe26c7 RBX: 000000000cfbfbff RCX: 0000000000040000 RDX: ffffc9000b779000 RSI: 0000000000025d41 RDI: 0000000000025d42 RBP: ffffc9000d7d6a70 R08: ffffffff82fe1f28 R09: ffffed100ef3b7d1 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000008 R13: dffffc0000000000 R14: ffff88805193c01c R15: ffff8880777a2678 FS: 00007f2ccdb58700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200c3000 CR3: 0000000029e0b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_prealloc_extents fs/udf/inode.c:1038 [inline] inode_getblk fs/udf/inode.c:896 [inline] udf_map_block+0x2658/0x4ff0 fs/udf/inode.c:450 __udf_get_block+0x126/0x410 fs/udf/inode.c:464 get_more_blocks fs/direct-io.c:637 [inline] do_direct_IO fs/direct-io.c:925 [inline] __blockdev_direct_IO+0x1ada/0x40e0 fs/direct-io.c:1237 blockdev_direct_IO include/linux/fs.h:2808 [inline] udf_direct_IO+0x13a/0x200 fs/udf/inode.c:313 generic_file_direct_write+0x208/0x460 mm/filemap.c:3847 __generic_file_write_iter+0x1c8/0x400 mm/filemap.c:4007 udf_file_write_iter+0x2fc/0x660 fs/udf/file.c:115 do_iter_write+0x7b1/0xcb0 fs/read_write.c:860 iter_file_splice_write+0x843/0xfe0 fs/splice.c:779 do_splice_from fs/splice.c:857 [inline] direct_splice_actor+0xe7/0x1c0 fs/splice.c:1023 splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:978 do_splice_direct+0x283/0x3d0 fs/splice.c:1066 do_sendfile+0x620/0xff0 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f2ccce8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2ccdb58168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f2cccfabf80 RCX: 00007f2ccce8c169 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f2cccee7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 000000007fffff2e R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffaa2dbf1f R14: 00007f2ccdb58300 R15: 0000000000022000