------------[ cut here ]------------ WARNING: CPU: 0 PID: 5320 at fs/udf/inode.c:2080 __udf_add_aext+0x555/0x700 fs/udf/inode.c:2079 Modules linked in: CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.14.0-rc6-syzkaller-00205-g3571e8b091f4 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__udf_add_aext+0x555/0x700 fs/udf/inode.c:2079 Code: df d8 fe 49 8b 3c 24 4c 89 fe e8 e6 36 fd fe 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 1c 99 71 fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 0e 99 71 fe 90 0f 0b 90 e9 54 fc ff ff RSP: 0018:ffffc9000d477278 EFLAGS: 00010287 RAX: ffffffff835046b4 RBX: 1ffff92001a8ee9b RCX: 0000000000100000 RDX: ffffc9000ed0b000 RSI: 0000000000076635 RDI: 0000000000076636 RBP: 0000000000000000 R08: ffffffff83504296 R09: ffffffff835041c6 R10: 0000000000000002 R11: ffff888000444880 R12: ffffc9000d4774d0 R13: 0000000000000004 R14: dffffc0000000000 R15: ffffc9000d4774d8 FS: 00007f9df07dc6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9df07dbfe0 CR3: 000000004282c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> udf_add_aext fs/udf/inode.c:2137 [inline] udf_insert_aext fs/udf/inode.c:2316 [inline] udf_update_extents fs/udf/inode.c:1204 [inline] inode_getblk fs/udf/inode.c:918 [inline] udf_map_block+0x3faa/0x54b0 fs/udf/inode.c:447 __udf_get_block+0x126/0x410 fs/udf/inode.c:461 __block_write_begin_int+0x692/0x19a0 fs/buffer.c:2116 block_write_begin+0x8f/0x120 fs/buffer.c:2226 udf_write_begin+0xfc/0x250 fs/udf/inode.c:256 generic_perform_write+0x346/0x990 mm/filemap.c:4188 udf_file_write_iter+0x2e7/0x6c0 fs/udf/file.c:111 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xacf/0xd10 fs/read_write.c:679 ksys_pwrite64 fs/read_write.c:786 [inline] __do_sys_pwrite64 fs/read_write.c:794 [inline] __se_sys_pwrite64 fs/read_write.c:791 [inline] __x64_sys_pwrite64+0x1ac/0x240 fs/read_write.c:791 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9def98d169 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:00007f9df07dc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f9defba6080 RCX: 00007f9def98d169 RDX: 0000000000000001 RSI: 0000400000000140 RDI: 0000000000000008 RBP: 00007f9defa0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008000c61 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9defba6080 R15: 00007ffc035bc8f8 </TASK>