------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:240!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 6607 Comm: syz.1.27 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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 5a fe ae ff 4c 89 fa e9 06 ff ff ff e8 7d de 48 ff 90 0f 0b e8 75 de 48 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
RSP: 0018:ffffc900041ff3a8 EFLAGS: 00010293
RAX: ffffffff8278194b RBX: 0000000000000065 RCX: ffff88802673db80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000065
RBP: ffff888053069b42 R08: ffff88802b62e387 R09: 1ffff110056c5c70
R10: dffffc0000000000 R11: ffffed10056c5c71 R12: 0000000000000064
R13: ffffc900041ff460 R14: 0000000000000064 R15: ffff8880530695d8
FS:  00007fd7ea5f86c0(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fac99f4a000 CR3: 000000007a1ae000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0x336/0xab0 fs/ext4/inline.c:817
 generic_perform_write+0x62a/0x900 mm/filemap.c:4335
 ext4_buffered_write_iter+0xce/0x3a0 fs/ext4/file.c:299
 ext4_file_write_iter+0x292/0x1bc0 fs/ext4/file.c:-1
 iter_file_splice_write+0x972/0x10b0 fs/splice.c:738
 do_splice_from fs/splice.c:938 [inline]
 direct_splice_actor+0x101/0x160 fs/splice.c:1161
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1105
 do_splice_direct_actor fs/splice.c:1204 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1230
 do_sendfile+0x4da/0x7e0 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+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd7e9785d29
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:00007fd7ea5f8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fd7e9975fa0 RCX: 00007fd7e9785d29
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fd7e9801aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd7e9975fa0 R15: 00007fff4f507408
 </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 5a fe ae ff 4c 89 fa e9 06 ff ff ff e8 7d de 48 ff 90 0f 0b e8 75 de 48 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
RSP: 0018:ffffc900041ff3a8 EFLAGS: 00010293
RAX: ffffffff8278194b RBX: 0000000000000065 RCX: ffff88802673db80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000065
RBP: ffff888053069b42 R08: ffff88802b62e387 R09: 1ffff110056c5c70
R10: dffffc0000000000 R11: ffffed10056c5c71 R12: 0000000000000064
R13: ffffc900041ff460 R14: 0000000000000064 R15: ffff8880530695d8
FS:  00007fd7ea5f86c0(0000) GS:ffff888125e1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e4e570000 CR3: 000000007a1ae000 CR4: 0000000000350ef0