------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:240!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6424 Comm: syz-executor.3 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:ext4_write_inline_data+0x43c/0x440 fs/ext4/inline.c:240
Code: c1 38 c1 0f 8c 19 ff ff ff 48 89 df 49 89 d7 e8 ca f2 b5 ff 4c 89 fa e9 06 ff ff ff e8 8d ac 56 ff 90 0f 0b e8 85 ac 56 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f
RSP: 0018:ffffc90005ac7388 EFLAGS: 00010293
RAX: ffffffff8267c1bb RBX: 000000000000006d RCX: ffff88802f150000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88803e3e4502 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1004871c71 R12: 0000000000000063
R13: ffffc90005ac7460 R14: 000000000000006c R15: ffff88803e3e3e70
FS:  00007f795f71e6c0(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000a00 CR3: 0000000040828000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0x325/0xad0 fs/ext4/inline.c:807
 generic_perform_write+0x611/0x8c0 mm/filemap.c:4196
 ext4_buffered_write_iter+0xd0/0x3a0 fs/ext4/file.c:299
 ext4_file_write_iter+0x299/0x1be0 fs/ext4/file.c:-1
 iter_file_splice_write+0x97a/0x10f0 fs/splice.c:738
 do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0x104/0x160 fs/splice.c:1161
 splice_direct_to_actor+0x5b3/0xcd0 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x187/0x270 fs/splice.c:1230
 do_sendfile+0x4ec/0x7f0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f796039dda9
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:00007f795f71e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f79604cbf80 RCX: 00007f796039dda9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f79603ea47a R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f79604cbf80 R15: 00007ffddef4f928
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_write_inline_data+0x43c/0x440 fs/ext4/inline.c:240
Code: c1 38 c1 0f 8c 19 ff ff ff 48 89 df 49 89 d7 e8 ca f2 b5 ff 4c 89 fa e9 06 ff ff ff e8 8d ac 56 ff 90 0f 0b e8 85 ac 56 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f
RSP: 0018:ffffc90005ac7388 EFLAGS: 00010293
RAX: ffffffff8267c1bb RBX: 000000000000006d RCX: ffff88802f150000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88803e3e4502 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1004871c71 R12: 0000000000000063
R13: ffffc90005ac7460 R14: 000000000000006c R15: ffff88803e3e3e70
FS:  00007f795f71e6c0(0000) GS:ffff8881269bc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000a00 CR3: 0000000040828000 CR4: 00000000003526f0