kernel BUG at fs/ext4/inode.c:2760!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2054 Comm: syz-executor421 Not tainted 6.1.118-syzkaller-00075-g4c2d86d81fa6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2759
Code: 14 80 ff 31 ff 89 de e8 03 14 80 ff 45 84 f6 75 2a e8 69 11 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 55 11 80 ff <0f> 0b e8 4e 11 80 ff e8 55 12 0b ff e9 46 c3 ff ff e8 3f 11 80 ff
RSP: 0000:ffffc90003917040 EFLAGS: 00010293
RAX: ffffffff81f5755b RBX: 0000008000000000 RCX: ffff8881105f5100
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90003917450 R08: ffffffff81f53cbb R09: ffffed10249de179
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888110258000
R13: ffff888124ef0d00 R14: 000000d410000000 R15: ffffc90003917320
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 000000000700f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x385/0x620 mm/page-writeback.c:2494
 filemap_fdatawrite_wbc+0x153/0x1b0 mm/filemap.c:408
 __filemap_fdatawrite_range mm/filemap.c:441 [inline]
 __filemap_fdatawrite mm/filemap.c:447 [inline]
 filemap_flush+0x11a/0x170 mm/filemap.c:474
 ext4_alloc_da_blocks+0x77/0x1a0 fs/ext4/inode.c:3164
 ext4_release_file+0x84/0x310 fs/ext4/file.c:158
 __fput+0x1e5/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xbd5/0x2b80 kernel/exit.c:877
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1027
 get_signal+0x169d/0x1820 kernel/signal.c:2889
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x74/0xa0 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f13c8d27d89
Code: Unable to access opcode bytes at 0x7f13c8d27d5f.
RSP: 002b:00007ffe1b110d18 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 000000000000fbc0 RCX: 00007f13c8d27d89
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f13c8db071c
RBP: 000000000000fbf2 R08: 00007ffe1b1600b0 R09: 0000000000000000
R10: 00007ffe1b110d50 R11: 0000000000000246 R12: 00007ffe1b110d50
R13: 00007f13c8db071c R14: 0000000000000032 R15: 00007f13c8cefb30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2759
Code: 14 80 ff 31 ff 89 de e8 03 14 80 ff 45 84 f6 75 2a e8 69 11 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 55 11 80 ff <0f> 0b e8 4e 11 80 ff e8 55 12 0b ff e9 46 c3 ff ff e8 3f 11 80 ff
RSP: 0000:ffffc90003917040 EFLAGS: 00010293

RAX: ffffffff81f5755b RBX: 0000008000000000 RCX: ffff8881105f5100
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90003917450 R08: ffffffff81f53cbb R09: ffffed10249de179
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888110258000
R13: ffff888124ef0d00 R14: 000000d410000000 R15: ffffc90003917320
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b213051068 CR3: 0000000111923000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400