syzbot

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kernel BUG at fs/ext4/inline.c:772!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5908 Comm: syz-executor265 Not tainted 5.10.236-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:ext4_write_inline_data_end+0x7c3/0x7e0 fs/ext4/inline.c:772
Code: 54 24 20 e9 ce fc ff ff 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c dd fc ff ff 4c 89 ef e8 d7 cd d0 ff e9 d0 fc ff ff e8 ad e7 96 ff <0f> 0b e8 a6 e7 96 ff 0f 0b e8 9f e7 96 ff 0f 0b e8 98 e7 96 ff 0f
RSP: 0018:ffffc90004d2f140 EFLAGS: 00010293
RAX: ffffffff81cca393 RBX: ffff88812025ebe8 RCX: ffff8881128fcf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004d2f268 R08: dffffc0000000000 R09: ffffed102404bd55
R10: ffffed102404bd55 R11: 1ffff1102404bd54 R12: dffffc0000000000
R13: ffff88812025eaa0 R14: 0000000000000000 R15: ffffc90004d2f1e0
FS:  00007fecff34d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 0000000112a0a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_write_end+0x4af/0xed0 fs/ext4/inode.c:1333
 generic_perform_write+0x36d/0x510 mm/filemap.c:3520
 ext4_buffered_write_iter+0x4b8/0x640 fs/ext4/file.c:271
 ext4_file_write_iter+0x536/0x1980 fs/ext4/file.c:-1
 do_iter_readv_writev+0x491/0x600 fs/read_write.c:-1
 do_iter_write+0x189/0x630 fs/read_write.c:866
 vfs_iter_write+0x7d/0xa0 fs/read_write.c:907
 iter_file_splice_write+0x650/0xc30 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0xe9/0x120 fs/splice.c:936
 splice_direct_to_actor+0x4c0/0xb10 fs/splice.c:891
 do_splice_direct+0x1b3/0x2c0 fs/splice.c:979
 do_sendfile+0x8ca/0xf90 fs/read_write.c:1257
 __do_sys_sendfile64 fs/read_write.c:1318 [inline]
 __se_sys_sendfile64 fs/read_write.c:1304 [inline]
 __x64_sys_sendfile64+0x18f/0x1f0 fs/read_write.c:1304
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fecff39e7a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 1d 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:00007fecff34d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fecff4254a8 RCX: 00007fecff39e7a9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005
RBP: 00007fecff4254a0 R08: 00007fecff34d6c0 R09: 0000000000000000
R10: 0000000000040001 R11: 0000000000000246 R12: 00007fecff4254ac
R13: 000000000000000b R14: 00007fff1cb11c40 R15: 00007fff1cb11d28
Modules linked in:
---[ end trace f2695be15e8e0011 ]---
RIP: 0010:ext4_write_inline_data_end+0x7c3/0x7e0 fs/ext4/inline.c:772
Code: 54 24 20 e9 ce fc ff ff 44 89 e9 80 e1 07 fe c1 38 c1 0f 8c dd fc ff ff 4c 89 ef e8 d7 cd d0 ff e9 d0 fc ff ff e8 ad e7 96 ff <0f> 0b e8 a6 e7 96 ff 0f 0b e8 9f e7 96 ff 0f 0b e8 98 e7 96 ff 0f
RSP: 0018:ffffc90004d2f140 EFLAGS: 00010293
RAX: ffffffff81cca393 RBX: ffff88812025ebe8 RCX: ffff8881128fcf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004d2f268 R08: dffffc0000000000 R09: ffffed102404bd55
R10: ffffed102404bd55 R11: 1ffff1102404bd54 R12: dffffc0000000000
R13: ffff88812025eaa0 R14: 0000000000000000 R15: ffffc90004d2f1e0
FS:  00007fecff34d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1cb29750 CR3: 0000000112a0a000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400