------------[ cut here ]------------
kernel BUG at fs/ext4/inline.c:236!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 496 Comm: syz.0.39 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:ext4_write_inline_data+0x3ab/0x3b0 fs/ext4/inline.c:236
Code: 07 fe c1 38 c1 0f 8c 2c ff ff ff 48 89 df 49 89 d7 e8 79 e3 cc ff 4c 89 fa e9 19 ff ff ff e8 ec b5 87 ff 0f 0b e8 e5 b5 87 ff <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 b8 a4 70 30 e0 55
RSP: 0000:ffffc9000fa97120 EFLAGS: 00010293
RAX: ffffffff81e9b62b RBX: 00000000000a5000 RCX: ffff88811975a880
RDX: 0000000000000000 RSI: 000000000000003c RDI: 00000000000a5000
RBP: ffffc9000fa97170 R08: ffff88811961c257 R09: 1ffff110232c384a
R10: dffffc0000000000 R11: ffffed10232c384b R12: ffff888116983a98
R13: ffffc9000fa97200 R14: 00000000000a4000 R15: 000000000000003c
FS:  00007f16240126c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000328 CR3: 0000000132e98000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_write_inline_data_end+0x337/0xa90 fs/ext4/inline.c:795
 ext4_da_write_end+0x1ce/0x8c0 fs/ext4/inode.c:3093
 generic_perform_write+0x3e5/0x740 mm/filemap.c:3914
 ext4_buffered_write_iter+0x367/0x630 fs/ext4/file.c:285
 ext4_file_write_iter+0x191/0x1500 fs/ext4/file.c:-1
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x665/0xb40 fs/read_write.c:861
 vfs_iter_write+0x7d/0xa0 fs/read_write.c:902
 iter_file_splice_write+0x69e/0xcd0 fs/splice.c:685
 do_splice_from fs/splice.c:763 [inline]
 direct_splice_actor+0xf7/0x130 fs/splice.c:930
 splice_direct_to_actor+0x4ad/0xb30 fs/splice.c:885
 do_splice_direct+0x1c2/0x2d0 fs/splice.c:973
 do_sendfile+0x5ed/0xea0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64 fs/read_write.c:1309 [inline]
 __x64_sys_sendfile64+0x199/0x1f0 fs/read_write.c:1309
 x64_sys_call+0x62c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:41
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f162319aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1624012028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f1623416090 RCX: 00007f162319aeb9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f1623208c1f R08: 0000000000000000 R09: 0000000000000000
R10: 000000000e3aa6ea R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1623416128 R14: 00007f1623416090 R15: 00007ffec74ccc78
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_write_inline_data+0x3ab/0x3b0 fs/ext4/inline.c:236
Code: 07 fe c1 38 c1 0f 8c 2c ff ff ff 48 89 df 49 89 d7 e8 79 e3 cc ff 4c 89 fa e9 19 ff ff ff e8 ec b5 87 ff 0f 0b e8 e5 b5 87 ff <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 b8 a4 70 30 e0 55
RSP: 0000:ffffc9000fa97120 EFLAGS: 00010293
RAX: ffffffff81e9b62b RBX: 00000000000a5000 RCX: ffff88811975a880
RDX: 0000000000000000 RSI: 000000000000003c RDI: 00000000000a5000
RBP: ffffc9000fa97170 R08: ffff88811961c257 R09: 1ffff110232c384a
R10: dffffc0000000000 R11: ffffed10232c384b R12: ffff888116983a98
R13: ffffc9000fa97200 R14: 00000000000a4000 R15: 000000000000003c
FS:  00007f16240126c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000328 CR3: 0000000132e98000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400