UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6445 at fs/udf/inode.c:2081 __udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2080 Modules linked in: CPU: 1 UID: 0 PID: 6445 Comm: syz.2.67 Not tainted 6.15.0-rc5-syzkaller-00032-g0d8d44db295c #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 RIP: 0010:__udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2080 Code: 99 ef fe 49 8b 3e 4c 89 e6 e8 68 82 11 ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 9d ca 8f fe 90 <0f> 0b 90 e9 14 fc ff ff e8 8f ca 8f fe 90 0f 0b 90 e9 66 fd ff ff RSP: 0018:ffffc90003aff4a0 EFLAGS: 00010293 RAX: ffffffff833004c3 RBX: dffffc0000000000 RCX: ffff88802fe03c00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000220 RBP: 1ffff9200075fecf R08: ffff88802fe03c00 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000220 R13: 0000000000000004 R14: ffffc90003aff670 R15: ffffc90003aff678 FS: 00007fe492b726c0(0000) GS:ffff8881261fd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000c6000 CR3: 000000007f2bc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_add_aext fs/udf/inode.c:2138 [inline] udf_insert_aext fs/udf/inode.c:2317 [inline] udf_update_extents fs/udf/inode.c:1205 [inline] inode_getblk fs/udf/inode.c:919 [inline] udf_map_block+0x336f/0x42a0 fs/udf/inode.c:447 __udf_get_block+0x52/0x250 fs/udf/inode.c:461 __block_write_begin_int+0x6b2/0x1900 fs/buffer.c:2151 block_write_begin+0x8a/0x120 fs/buffer.c:2262 udf_write_begin+0x100/0x260 fs/udf/inode.c:256 generic_perform_write+0x2c4/0x910 mm/filemap.c:4103 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x548/0xa90 fs/read_write.c:684 ksys_write+0x145/0x250 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe491d8e969 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe492b72038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fe491fb5fa0 RCX: 00007fe491d8e969 RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000005 RBP: 00007fe491e10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe491fb5fa0 R15: 00007fffcd7f33d8