------------[ cut here ]------------ WARNING: CPU: 0 PID: 7886 at fs/ext4/inode.c:3389 ext4_iomap_begin+0xaa2/0xd30 fs/ext4/inode.c:3389 Modules linked in: CPU: 0 UID: 0 PID: 7886 Comm: syz.3.236 Not tainted 6.12.0-rc5-syzkaller-00330-ga33ab3f94f51 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:ext4_iomap_begin+0xaa2/0xd30 fs/ext4/inode.c:3389 Code: 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 48 f1 37 ff 49 be 00 00 00 00 00 fc ff df 48 8b 5c 24 48 e9 61 ff ff ff e8 2f f1 37 ff 90 <0f> 0b 90 41 bc de ff ff ff e9 87 f6 ff ff 89 d9 80 e1 07 38 c1 0f RSP: 0018:ffffc9000ba37560 EFLAGS: 00010293 RAX: ffffffff825ce811 RBX: 0000000010000000 RCX: ffff88802a708000 RDX: 0000000000000000 RSI: 00000000000000d4 RDI: 0000000000000000 RBP: ffffc9000ba376d0 R08: ffffffff825cdf58 R09: 1ffff1100c3c3147 R10: dffffc0000000000 R11: ffffed100c3c3148 R12: 00000000000000d4 R13: 1ffff1100c3c31ab R14: 000000000000000b R15: 0000000000000000 FS: 00007f23c15986c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4df3bff000 CR3: 00000000645c0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x691/0xf60 fs/iomap/iter.c:91 __iomap_dio_rw+0xdea/0x2370 fs/iomap/direct-io.c:677 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:767 ext4_dio_write_iter fs/ext4/file.c:577 [inline] ext4_file_write_iter+0x15f0/0x1a20 fs/ext4/file.c:696 new_sync_write fs/read_write.c:590 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:683 ksys_write+0x183/0x2b0 fs/read_write.c:736 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: 0033:0x7f23c077e719 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:00007f23c1598038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f23c0935f80 RCX: 00007f23c077e719 RDX: 0000000000001006 RSI: 0000000020006c00 RDI: 0000000000000004 RBP: 00007f23c07f132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f23c0935f80 R15: 00007fff9ea0f408