------------[ cut here ]------------ WARNING: CPU: 1 PID: 30014 at fs/ext4/inode.c:3574 ext4_iomap_overwrite_begin+0x7d/0xa0 Modules linked in: CPU: 1 PID: 30014 Comm: syz-executor.1 Not tainted 6.3.0-rc6-syzkaller-00173-g7a934f4bd7d6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:ext4_iomap_overwrite_begin+0x7d/0xa0 fs/ext4/inode.c:3574 Code: 2d 0f b7 1b bf 02 00 00 00 89 de e8 1d 15 52 ff 83 fb 02 75 10 e8 f3 11 52 ff 89 e8 5b 41 5c 41 5e 41 5f 5d c3 e8 e3 11 52 ff <0f> 0b eb ec 89 d9 80 e1 07 fe c1 38 c1 7c c8 48 89 df e8 3c d2 a7 RSP: 0018:ffffc9000a4cf0b0 EFLAGS: 00010293 RAX: ffffffff823864dd RBX: 0000000000000000 RCX: ffff88807d391d40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 00000000ffffff8b R08: ffffffff823864c3 R09: ffffed100f18877a R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803d4fd2f0 R13: ffff88803d4fd2f0 R14: 0000000000010000 R15: 0000000000090000 FS: 00007fe681b6e700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2767115dc9 CR3: 000000002b556000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x677/0xec0 fs/iomap/iter.c:91 __iomap_dio_rw+0xd74/0x20d0 fs/iomap/direct-io.c:594 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:683 ext4_dio_write_iter fs/ext4/file.c:597 [inline] ext4_file_write_iter+0x1509/0x1930 fs/ext4/file.c:708 do_iter_write+0x6ea/0xc50 fs/read_write.c:861 iter_file_splice_write+0x843/0xfe0 fs/splice.c:778 do_splice_from fs/splice.c:856 [inline] direct_splice_actor+0xe7/0x1c0 fs/splice.c:1022 splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:977 do_splice_direct+0x283/0x3d0 fs/splice.c:1065 do_sendfile+0x620/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309 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: 0033:0x7fe680e8c169 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:00007fe681b6e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe680fabf80 RCX: 00007fe680e8c169 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005 RBP: 00007fe680ee7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008800000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc42fc2daf R14: 00007fe681b6e300 R15: 0000000000022000