------------[ cut here ]------------ WARNING: CPU: 0 PID: 6010 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:125 [inline] WARNING: CPU: 0 PID: 6010 at fs/udf/udfdecl.h:123 udf_bitmap_prealloc_blocks fs/udf/balloc.c:237 [inline] WARNING: CPU: 0 PID: 6010 at fs/udf/udfdecl.h:123 udf_prealloc_blocks+0xf07/0x1310 fs/udf/balloc.c:704 Modules linked in: CPU: 0 PID: 6010 Comm: syz-executor.5 Not tainted 6.3.0-rc5-syzkaller-00022-g76f598ba7d8e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 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 53 1d 90 fe e9 4b f7 ff ff e8 49 1d 90 fe <0f> 0b e9 67 f8 ff ff e8 3d 1d 90 fe 0f 0b e9 c9 fe ff ff 89 d9 80 RSP: 0018:ffffc90015587140 EFLAGS: 00010283 RAX: ffffffff82fa4537 RBX: 0000000063746800 RCX: 0000000000040000 RDX: ffffc90004e19000 RSI: 000000000001cb7e RDI: 000000000001cb7f RBP: ffffc900155872b0 R08: ffffffff82fa3d98 R09: ffffed1006e26740 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000008 R13: dffffc0000000000 R14: ffff88803a3aa01c R15: ffff888031b20678 FS: 00007fc1d66b8700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9aec3ff000 CR3: 0000000020341000 CR4: 00000000003506f0 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 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2034 __block_write_begin fs/buffer.c:2084 [inline] block_write_begin+0x9c/0x1f0 fs/buffer.c:2145 udf_write_begin+0x10a/0x190 fs/udf/inode.c:265 generic_perform_write+0x300/0x5e0 mm/filemap.c:3926 __generic_file_write_iter+0x17a/0x400 mm/filemap.c:4054 udf_file_write_iter+0x2fc/0x660 fs/udf/file.c:115 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x7b2/0xbb0 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 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: 0033:0x7fc1d588c169 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:00007fc1d66b8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc1d59abf80 RCX: 00007fc1d588c169 RDX: 000000000208e29a RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00007fc1d58e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc15df46cf R14: 00007fc1d66b8300 R15: 0000000000022000