------------[ cut here ]------------ WARNING: fs/ext4/inode.c:3794 at ext4_iomap_begin+0x1613/0x1820 fs/ext4/inode.c:3794, CPU#0: syz.8.1493/15755 Modules linked in: CPU: 0 UID: 0 PID: 15755 Comm: syz.8.1493 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ext4_iomap_begin+0x1613/0x1820 fs/ext4/inode.c:3794 Code: e9 a7 ec ff ff e8 7d 99 46 ff 41 bc e4 ff ff ff 4c 8b 6c 24 08 e9 92 ec ff ff e8 68 99 46 ff e9 88 ec ff ff e8 5e 99 46 ff 90 <0f> 0b 90 41 bc de ff ff ff e9 33 f0 ff ff 44 89 e1 80 e1 07 38 c1 RSP: 0018:ffffc900031d7560 EFLAGS: 00010293 RAX: ffffffff827b1f02 RBX: 0000000000000000 RCX: ffff888027a7bd00 RDX: 0000000000000000 RSI: 00000000000000d4 RDI: 0000000000000000 RBP: ffffc900031d76f8 R08: ffff888045f643b7 R09: 1ffff11008bec876 R10: dffffc0000000000 R11: ffffed1008bec877 R12: ffff888045f646ba R13: ffff888045f645f8 R14: 00000000000000d4 R15: dffffc0000000000 FS: 00007f54eccf06c0(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3141eff8 CR3: 0000000034b18000 CR4: 00000000003526f0 DR0: 0000000000000080 DR1: 0000000000000003 DR2: 0000000000000008 DR3: 0000000080000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: iomap_iter+0x600/0xf40 fs/iomap/iter.c:110 __iomap_dio_rw+0xc3a/0x1d90 fs/iomap/direct-io.c:752 iomap_dio_rw+0x45/0xb0 fs/iomap/direct-io.c:847 ext4_dio_write_iter fs/ext4/file.c:580 [inline] ext4_file_write_iter+0x169c/0x1bc0 fs/ext4/file.c:721 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f54ebd8f749 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:00007f54eccf0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f54ebfe6090 RCX: 00007f54ebd8f749 RDX: 00000000fffffd55 RSI: 0000200000000280 RDI: 0000000000000004 RBP: 00007f54ebe13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f54ebfe6128 R14: 00007f54ebfe6090 R15: 00007ffc9e5c5a88