Bluetooth: hci0: Frame reassembly failed (-84) ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2747! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:ext4_writepages+0x3069/0x3090 fs/ext4/inode.c:2746 Code: 00 00 00 e8 79 2a 8e ff 84 db 75 2c e8 e0 27 8e ff 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 e9 8e f7 ff ff e8 c7 27 8e ff <0f> 0b e8 c0 27 8e ff e8 e7 d9 24 ff eb a2 e8 b4 27 8e ff e8 db d9 RSP: 0018:ffffc90000087060 EFLAGS: 00010293 RAX: ffffffff81db9f19 RBX: 000000c410000000 RCX: ffff888100273b40 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900000873d0 R08: ffff8881119b862f R09: 1ffff110223370c5 R10: dffffc0000000000 R11: ffffed10223370c6 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000008000000000 R15: ffff8881119b88c0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81765d9fa8 CR3: 000000011d13d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x473/0x6c0 mm/page-writeback.c:2388 __writeback_single_inode+0xd5/0x9c0 fs/fs-writeback.c:1657 writeback_sb_inodes+0xa10/0x1610 fs/fs-writeback.c:1940 __writeback_inodes_wb+0x12f/0x400 fs/fs-writeback.c:2011 wb_writeback+0x41f/0x9d0 fs/fs-writeback.c:2118 wb_check_background_flush fs/fs-writeback.c:2188 [inline] wb_do_writeback fs/fs-writeback.c:2276 [inline] wb_workfn+0xb0a/0xf30 fs/fs-writeback.c:2304 process_one_work+0x6be/0xba0 kernel/workqueue.c:2325 worker_thread+0xa59/0x1200 kernel/workqueue.c:2472 kthread+0x411/0x500 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Modules linked in: ---[ end trace 859dc0ea341ae56a ]--- RIP: 0010:ext4_writepages+0x3069/0x3090 fs/ext4/inode.c:2746 Code: 00 00 00 e8 79 2a 8e ff 84 db 75 2c e8 e0 27 8e ff 49 bc 00 00 00 00 00 fc ff df 48 8b 5c 24 20 e9 8e f7 ff ff e8 c7 27 8e ff <0f> 0b e8 c0 27 8e ff e8 e7 d9 24 ff eb a2 e8 b4 27 8e ff e8 db d9 RSP: 0018:ffffc90000087060 EFLAGS: 00010293 RAX: ffffffff81db9f19 RBX: 000000c410000000 RCX: ffff888100273b40 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900000873d0 R08: ffff8881119b862f R09: 1ffff110223370c5 R10: dffffc0000000000 R11: ffffed10223370c6 R12: dffffc0000000000 R13: 0000000000000001 R14: 0000008000000000 R15: ffff8881119b88c0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8177dcd2f8 CR3: 000000010d614000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400