------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2844! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 9 Comm: kworker/u4:1 Not tainted 5.4.289-syzkaller-00028-g3f2c17e79750 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:ext4_writepages+0x3c96/0x3cc0 fs/ext4/inode.c:2843 Code: 9c 9b ff 31 ff 89 de e8 08 9c 9b ff 45 84 f6 75 2e e8 ee 99 9b ff 49 bf 00 00 00 00 00 fc ff df e9 1d f9 ff ff e8 da 99 9b ff <0f> 0b e8 d3 99 9b ff 0f 0b e8 cc 99 9b ff e8 97 a3 37 ff eb 99 e8 RSP: 0018:ffff8881f5dcf0e0 EFLAGS: 00010293 RAX: ffffffff81c8b096 RBX: 0000010000000000 RCX: ffff8881f5dc4ec0 RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 RBP: ffff8881f5dcf4d0 R08: ffffffff81c87ce6 R09: ffffed103b192722 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d8c939b8 R13: 0000000000000001 R14: 0000018410000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555893a9738 CR3: 00000001e9ebc000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x12b/0x270 mm/page-writeback.c:2366 __writeback_single_inode+0xd9/0xcc0 fs/fs-writeback.c:1467 writeback_sb_inodes+0x9e0/0x1800 fs/fs-writeback.c:1730 wb_writeback+0x403/0xd70 fs/fs-writeback.c:1905 wb_do_writeback fs/fs-writeback.c:2050 [inline] wb_workfn+0x3b6/0x1230 fs/fs-writeback.c:2091 process_one_work+0x765/0xd20 kernel/workqueue.c:2290 worker_thread+0xaef/0x1470 kernel/workqueue.c:2436 kthread+0x2da/0x360 kernel/kthread.c:288 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354 Modules linked in: ---[ end trace 045183232d727563 ]--- RIP: 0010:ext4_writepages+0x3c96/0x3cc0 fs/ext4/inode.c:2843 Code: 9c 9b ff 31 ff 89 de e8 08 9c 9b ff 45 84 f6 75 2e e8 ee 99 9b ff 49 bf 00 00 00 00 00 fc ff df e9 1d f9 ff ff e8 da 99 9b ff <0f> 0b e8 d3 99 9b ff 0f 0b e8 cc 99 9b ff e8 97 a3 37 ff eb 99 e8 RSP: 0018:ffff8881f5dcf0e0 EFLAGS: 00010293 RAX: ffffffff81c8b096 RBX: 0000010000000000 RCX: ffff8881f5dc4ec0 RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 RBP: ffff8881f5dcf4d0 R08: ffffffff81c87ce6 R09: ffffed103b192722 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881d8c939b8 R13: 0000000000000001 R14: 0000018410000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faaef7e0000 CR3: 00000001e45c0000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400