------------[ cut here ]------------ WARNING: CPU: 1 PID: 12833 at fs/ext4/inode.c:3415 ext4_iomap_begin+0x967/0xad0 fs/ext4/inode.c:3415 Modules linked in: CPU: 1 UID: 0 PID: 12833 Comm: syz.6.756 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:ext4_iomap_begin+0x967/0xad0 fs/ext4/inode.c:3415 Code: 00 75 74 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 24 eb 50 ff e9 73 ff ff ff e8 1a eb 50 ff 90 <0f> 0b 90 41 be de ff ff ff 49 bf 00 00 00 00 00 fc ff df eb 82 89 RSP: 0018:ffffc9000b9f7560 EFLAGS: 00010287 RAX: ffffffff826f05c6 RBX: ffff8880340d70aa RCX: 0000000000080000 RDX: ffffc900195aa000 RSI: 00000000000003a2 RDI: 00000000000003a3 RBP: ffffc9000b9f76b8 R08: ffff8880340d6d4f R09: 1ffff1100681ada9 R10: dffffc0000000000 R11: ffffed100681adaa R12: 00000000000000d4 R13: 1ffff1100681ae15 R14: 000000000000000a R15: 0000000000000000 FS: 00007f31c4c3c6c0(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f31c4c3bf98 CR3: 0000000030d86000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x53a/0xdf0 fs/iomap/iter.c:109 __iomap_dio_rw+0xc67/0x1e40 fs/iomap/direct-io.c:733 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:823 ext4_dio_write_iter fs/ext4/file.c:575 [inline] ext4_file_write_iter+0x16a2/0x1bc0 fs/ext4/file.c:716 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x54b/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: 0033:0x7f31c3d8e969 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:00007f31c4c3c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f31c3fb6080 RCX: 00007f31c3d8e969 RDX: 0000000000001006 RSI: 0000200000001180 RDI: 0000000000000004 RBP: 00007f31c3e10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f31c3fb6080 R15: 00007ffd50e012b8