------------[ cut here ]------------ WARNING: CPU: 1 PID: 6361 at fs/ext4/inode.c:3794 ext4_iomap_begin+0x1e0/0xf70 fs/ext4/inode.c:3794 Modules linked in: CPU: 1 UID: 0 PID: 6361 Comm: syz.2.96 Not tainted 6.17.0-rc1-syzkaller-00038-g0cc53520e68b #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:ext4_iomap_begin+0x1e0/0xf70 fs/ext4/inode.c:3794 Code: c0 01 38 d0 7c 08 84 d2 0f 85 4c 0d 00 00 41 0f b7 9e 6a 05 00 00 31 ff 89 de e8 bb a3 43 ff 66 85 db 74 64 e8 a1 a8 43 ff 90 <0f> 0b 90 41 bf de ff ff ff e8 92 a8 43 ff 48 8b 4c 24 58 48 b8 00 RSP: 0018:ffffc900039cf300 EFLAGS: 00010287 RAX: 0000000000001bc6 RBX: 00000000000000d4 RCX: ffffc9000bccb000 RDX: 0000000000080000 RSI: ffffffff8277e9ef RDI: 0000000000000003 RBP: ffff888058386c8a R08: 0000000000000003 R09: 0000000000000000 R10: 00000000000000d4 R11: 0000000000000000 R12: ffffffff8bc64aa0 R13: ffffc900039cf682 R14: ffff888058386bc8 R15: 0000000000000000 FS: 00007f25dcaa66c0(0000) GS:ffff8881247c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000002da030 CR3: 000000005ebe2000 CR4: 0000000000350ef0 Call Trace: iomap_iter+0x5a3/0xf20 fs/iomap/iter.c:108 __iomap_dio_rw+0x704/0x1db0 fs/iomap/direct-io.c:728 iomap_dio_rw+0x40/0xa0 fs/iomap/direct-io.c:818 ext4_dio_write_iter fs/ext4/file.c:580 [inline] ext4_file_write_iter+0x1685/0x1d10 fs/ext4/file.c:721 iter_file_splice_write+0x918/0x1270 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x192/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x345/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xb06/0xe50 fs/read_write.c:1370 __do_sys_sendfile64 fs/read_write.c:1431 [inline] __se_sys_sendfile64 fs/read_write.c:1417 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1417 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f25dbb8ebe9 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:00007f25dcaa6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f25dbdb5fa0 RCX: 00007f25dbb8ebe9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f25dbc11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f25dbdb6038 R14: 00007f25dbdb5fa0 R15: 00007ffc9d4e7638