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kernel BUG at fs/ext4/extents.c:2153!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 36 Comm: kworker/u8:2 Not tainted 6.16.0-rc2-syzkaller-00318-g739a6c93cc75 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:7)
RIP: 0010:ext4_ext_insert_extent+0x4ab7/0x4af0 fs/ext4/extents.c:2153
Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c a6 e7 ff ff 48 89 df e8 2c 8b b6 ff e9 99 e7 ff ff e8 62 0d 53 ff 90 0f 0b e8 5a 0d 53 ff 90 <0f> 0b e8 52 0d 53 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90000ac6680 EFLAGS: 00010293
RAX: ffffffff826d4f26 RBX: 0000000000000021 RCX: ffff8881436d9e00
RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000000000021
RBP: ffffc90000ac6830 R08: ffff888055015747 R09: 1ffff1100aa02ae8
R10: dffffc0000000000 R11: ffffed100aa02ae9 R12: 0000000000000021
R13: dffffc0000000000 R14: ffff888053b71484 R15: ffff88814d276700
FS:  0000000000000000(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffca1aeff8 CR3: 000000005e6f7000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_ext_map_blocks+0x1792/0x6ac0 fs/ext4/extents.c:4404
 ext4_map_create_blocks fs/ext4/inode.c:609 [inline]
 ext4_map_blocks+0x931/0x18d0 fs/ext4/inode.c:813
 mpage_map_one_extent fs/ext4/inode.c:2348 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2401 [inline]
 ext4_do_writepages+0x212f/0x3f30 fs/ext4/inode.c:2863
 ext4_writepages+0x205/0x350 fs/ext4/inode.c:2953
 do_writepages+0x32e/0x550 mm/page-writeback.c:2636
 __writeback_single_inode+0x145/0xff0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x6b5/0x1000 fs/fs-writeback.c:1976
 wb_writeback+0x43b/0xaf0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x409/0xef0 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_ext_insert_extent+0x4ab7/0x4af0 fs/ext4/extents.c:2153
Code: 89 d9 80 e1 07 fe c1 38 c1 0f 8c a6 e7 ff ff 48 89 df e8 2c 8b b6 ff e9 99 e7 ff ff e8 62 0d 53 ff 90 0f 0b e8 5a 0d 53 ff 90 <0f> 0b e8 52 0d 53 ff 90 0f 0b 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90000ac6680 EFLAGS: 00010293
RAX: ffffffff826d4f26 RBX: 0000000000000021 RCX: ffff8881436d9e00
RDX: 0000000000000000 RSI: 0000000000000021 RDI: 0000000000000021
RBP: ffffc90000ac6830 R08: ffff888055015747 R09: 1ffff1100aa02ae8
R10: dffffc0000000000 R11: ffffed100aa02ae9 R12: 0000000000000021
R13: dffffc0000000000 R14: ffff888053b71484 R15: ffff88814d276700
FS:  0000000000000000(0000) GS:ffff888125c51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000022cc0 CR3: 0000000077035000 CR4: 0000000000350ef0