------------[ cut here ]------------ WARNING: CPU: 1 PID: 24553 at fs/ext4/inode.c:3338 ext4_iomap_begin+0x1ce/0x7d0 fs/ext4/inode.c:3338 Modules linked in: CPU: 1 PID: 24553 Comm: syz-executor.4 Not tainted 6.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:ext4_iomap_begin+0x1ce/0x7d0 fs/ext4/inode.c:3338 Code: 83 c0 01 38 d0 7c 08 84 d2 0f 85 00 06 00 00 41 0f b7 9f ba 05 00 00 31 ff 89 de e8 ac 7c 53 ff 66 85 db 74 5f e8 52 81 53 ff <0f> 0b 41 bd de ff ff ff e8 45 81 53 ff 48 8b 4c 24 28 48 b8 00 00 RSP: 0018:ffffc900047875a8 EFLAGS: 00010283 RAX: 00000000000007c1 RBX: 00000000000000a4 RCX: ffffc9000be64000 RDX: 0000000000040000 RSI: ffffffff8234455e RDI: 0000000000000003 RBP: 000000000000000b R08: 0000000000000003 R09: 0000000000000000 R10: 00000000000000a4 R11: 1ffffffff1976c99 R12: 0000000000000000 R13: ffff8880358d177a R14: ffffc90004787868 R15: ffff8880358d16b0 FS: 00007f0b5fa226c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe2105b68e5 CR3: 000000001f8d1000 CR4: 0000000000350ee0 Call Trace: iomap_iter+0x488/0x1120 fs/iomap/iter.c:91 __iomap_dio_rw+0x6f0/0x1d70 fs/iomap/direct-io.c:658 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:748 ext4_dio_write_iter fs/ext4/file.c:605 [inline] ext4_file_write_iter+0x1081/0x1860 fs/ext4/file.c:715 call_write_iter include/linux/fs.h:1956 [inline] do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735 do_iter_write+0x17f/0x830 fs/read_write.c:860 vfs_writev+0x221/0x700 fs/read_write.c:933 do_writev+0x137/0x370 fs/read_write.c:976 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f0b5ec7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0b5fa220c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f0b5ed9c050 RCX: 00007f0b5ec7cae9 RDX: 0000000000000001 RSI: 00000000200001c0 RDI: 0000000000000005 RBP: 00007f0b5ecc847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f0b5ed9c050 R15: 00007ffdd1d25228