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kernel BUG at fs/ext4/inode.c:2464!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 293 Comm: kworker/u4:3 Not tainted 5.10.240-syzkaller-1008085-g1154f779f3f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: writeback wb_workfn (flush-7:4)

RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2464 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2505 [inline]
RIP: 0010:ext4_writepages+0x2d49/0x2e00 fs/ext4/inode.c:2873
Code: 08 48 89 df e8 58 24 ce ff 48 8b 3b 48 8b 74 24 40 48 8b 54 24 28 48 8b 4c 24 20 45 89 f0 e8 9e 41 07 00 eb 56 e8 b7 34 94 ff <0f> 0b e8 b0 34 94 ff eb 2f e8 a9 34 94 ff eb 64 e8 a2 34 94 ff 31
RSP: 0018:ffffc90000bd7180 EFLAGS: 00010293
RAX: ffffffff81cf6bb9 RBX: 0000000000000000 RCX: ffff88811edde2c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bd74f0 R08: dffffc0000000000 R09: ffffed1024368bf4
R10: ffffed1024368bf4 R11: 1ffff11024368bf3 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000042b
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556184c858 CR3: 000000012457f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_writepages+0x12a/0x270 mm/page-writeback.c:2380
 __writeback_single_inode+0xd5/0xa20 fs/fs-writeback.c:1470
 writeback_sb_inodes+0x860/0x1400 fs/fs-writeback.c:1733
 wb_writeback+0x3e3/0xb90 fs/fs-writeback.c:1908
 wb_do_writeback fs/fs-writeback.c:2053 [inline]
 wb_workfn+0x38f/0xe20 fs/fs-writeback.c:2094
 process_one_work+0x6e1/0xba0 kernel/workqueue.c:2301
 worker_thread+0xa6a/0x13b0 kernel/workqueue.c:2447
 kthread+0x346/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 4417cfaaa417d339 ]---
RIP: 0010:mpage_map_one_extent fs/ext4/inode.c:2464 [inline]
RIP: 0010:mpage_map_and_submit_extent fs/ext4/inode.c:2505 [inline]
RIP: 0010:ext4_writepages+0x2d49/0x2e00 fs/ext4/inode.c:2873
Code: 08 48 89 df e8 58 24 ce ff 48 8b 3b 48 8b 74 24 40 48 8b 54 24 28 48 8b 4c 24 20 45 89 f0 e8 9e 41 07 00 eb 56 e8 b7 34 94 ff <0f> 0b e8 b0 34 94 ff eb 2f e8 a9 34 94 ff eb 64 e8 a2 34 94 ff 31
RSP: 0018:ffffc90000bd7180 EFLAGS: 00010293
RAX: ffffffff81cf6bb9 RBX: 0000000000000000 RCX: ffff88811edde2c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bd74f0 R08: dffffc0000000000 R09: ffffed1024368bf4
R10: ffffed1024368bf4 R11: 1ffff11024368bf3 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000042b
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e54352dae CR3: 000000010bd12000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400