EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 20314 at fs/ext4/inode.c:3338 ext4_iomap_begin+0xa9b/0xd30 Modules linked in: CPU: 0 PID: 20314 Comm: syz-executor.4 Not tainted 6.6.0-rc3-syzkaller-00025-g50768a425b46 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:ext4_iomap_begin+0xa9b/0xd30 fs/ext4/inode.c:3338 Code: d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ce 3d 4c ff 49 be 00 00 00 00 00 fc ff df 48 8b 5c 24 48 e9 65 ff ff ff e8 b5 3d 4c ff <0f> 0b 41 bc de ff ff ff e9 8f f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c RSP: 0000:ffffc90016d87560 EFLAGS: 00010293 RAX: ffffffff8241ccbb RBX: 0000000010000000 RCX: ffff88801f990000 RDX: 0000000000000000 RSI: 00000000000000bc RDI: 0000000000000000 RBP: ffffc90016d876d0 R08: ffffffff8241c408 R09: 1ffff1101068500a R10: dffffc0000000000 R11: ffffed101068500b R12: 00000000000000bc R13: 1ffff1101068506f R14: 000000000000000b R15: 0000000000000000 FS: 00007f5f67d176c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f07268bd000 CR3: 0000000021488000 CR4: 00000000003506f0 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+0xe2e/0x2370 fs/iomap/direct-io.c:658 iomap_dio_rw+0x46/0xa0 fs/iomap/direct-io.c:748 ext4_dio_write_iter fs/ext4/file.c:605 [inline] ext4_file_write_iter+0x165f/0x1ad0 fs/ext4/file.c:715 call_write_iter include/linux/fs.h:1956 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x782/0xaf0 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 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: 0033:0x7f5f6707cae9 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:00007f5f67d170c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f5f6719bf80 RCX: 00007f5f6707cae9 RDX: 0000000000000139 RSI: 0000000020000100 RDI: 0000000000000005 RBP: 00007f5f670c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f5f6719bf80 R15: 00007ffc2fcca4c8