IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2780! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 305 Comm: kworker/u4:3 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Workqueue: writeback wb_workfn (flush-7:3) RIP: 0010:ext4_writepages+0x2edb/0x2f00 fs/ext4/inode.c:2779 Code: ff 49 bd 00 00 00 00 00 fc ff df 4c 8b a4 24 98 00 00 00 48 8b 5c 24 38 4c 8b b4 24 c0 00 00 00 e9 fe f7 ff ff e8 c5 ee 92 ff <0f> 0b e8 be ee 92 ff e8 55 ba 2e ff eb 92 e8 b2 ee 92 ff e8 49 ba RSP: 0018:ffffc900079c7180 EFLAGS: 00010293 RAX: ffffffff81d1b33b RBX: 0000008410000000 RCX: ffff88810d7ba780 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900079c74f0 R08: ffff88811c7cded7 R09: 1ffff110238f9bda R10: dffffc0000000000 R11: ffffed10238f9bdb R12: ffff888113f72000 R13: dffffc0000000000 R14: 0000008000000000 R15: ffff88811c7cded0 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555672d9908 CR3: 000000010d45f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x12e/0x280 mm/page-writeback.c:2380 __writeback_single_inode+0xd9/0xa30 fs/fs-writeback.c:1470 writeback_sb_inodes+0x96d/0x1680 fs/fs-writeback.c:1733 wb_writeback+0x40f/0xb80 fs/fs-writeback.c:1908 wb_do_writeback fs/fs-writeback.c:2053 [inline] wb_workfn+0x3ac/0xf30 fs/fs-writeback.c:2094 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 worker_thread+0xa8e/0x13c0 kernel/workqueue.c:2447 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace 2fcbf2dfa716758f ]--- RIP: 0010:ext4_writepages+0x2edb/0x2f00 fs/ext4/inode.c:2779 Code: ff 49 bd 00 00 00 00 00 fc ff df 4c 8b a4 24 98 00 00 00 48 8b 5c 24 38 4c 8b b4 24 c0 00 00 00 e9 fe f7 ff ff e8 c5 ee 92 ff <0f> 0b e8 be ee 92 ff e8 55 ba 2e ff eb 92 e8 b2 ee 92 ff e8 49 ba RSP: 0018:ffffc900079c7180 EFLAGS: 00010293 RAX: ffffffff81d1b33b RBX: 0000008410000000 RCX: ffff88810d7ba780 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900079c74f0 R08: ffff88811c7cded7 R09: 1ffff110238f9bda R10: dffffc0000000000 R11: ffffed10238f9bdb R12: ffff888113f72000 R13: dffffc0000000000 R14: 0000008000000000 R15: ffff88811c7cded0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c24a0b7 CR3: 0000000125da3000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400