IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:3122! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 6436 Comm: syz-executor.0 Not tainted 4.14.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888090f2e1c0 task.stack: ffff8880953d8000 RIP: 0010:submit_bh_wbc+0x50f/0x730 fs/buffer.c:3122 RSP: 0018:ffff8880953dfcc8 EFLAGS: 00010246 RAX: 0000000000000005 RBX: ffff88807bb32150 RCX: 0000000000000000 RDX: 1ffff1100f76642a RSI: 0000000000000800 RDI: 0000000000000001 RBP: ffff8880953dfd10 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000028 R11: ffff888090f2e1c0 R12: 0000000000000800 R13: ffff88807bb32150 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000002652940(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2fec2d8018 CR3: 0000000097c94000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: submit_bh fs/buffer.c:3169 [inline] __sync_dirty_buffer+0xaf/0x210 fs/buffer.c:3255 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3268 fat_set_state+0x1be/0x280 fs/fat/inode.c:695 fat_put_super+0x40/0xd0 fs/fat/inode.c:721 generic_shutdown_super+0x12d/0x330 fs/super.c:446 kill_block_super+0x96/0xe0 fs/super.c:1161 deactivate_locked_super+0x62/0xb0 fs/super.c:319 deactivate_super+0x7d/0x90 fs/super.c:350 cleanup_mnt+0x9f/0x130 fs/namespace.c:1183 __cleanup_mnt+0xd/0x10 fs/namespace.c:1190 task_work_run+0xe5/0x170 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x16a/0x1b0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x416/0x5b0 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45d347 RSP: 002b:00007ffe5faec728 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000045d347 RDX: 0000000000403720 RSI: 0000000000000002 RDI: 00007ffe5faec7d0 RBP: 0000000000000032 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000005 R11: 0000000000000206 R12: 00007ffe5faed860 R13: 0000000002653940 R14: 0000000000000000 R15: 00007ffe5faed860 Code: 75 33 45 89 65 10 4c 89 ef e8 ce 08 5b 01 31 c0 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 f0 80 63 01 f7 e9 96 fb ff ff 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b e8 52 77 ec ff eb c6 e8 ab 76 ec RIP: submit_bh_wbc+0x50f/0x730 fs/buffer.c:3122 RSP: ffff8880953dfcc8 ---[ end trace 4795a1dcc5f29d85 ]---