lkml.org 
[lkml]   [2018]   [Apr]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject[PATCH 0/6] virtio-console: spec compliance fixes
Turns out virtio console tries to take a buffer out of an active vq.
Works by sheer luck, and is explicitly forbidden by spec. And while
going over it I saw that error handling is also broken -
failure is easy to trigger if I force allocations to fail.

Lightly tested.

Michael S. Tsirkin (6):
virtio_console: don't tie bufs to a vq
virtio: add ability to iterate over vqs
virtio_console: free buffers after reset
virtio_console: drop custom control queue cleanup
virtio_console: move removal code
virtio_console: reset on out of memory

drivers/char/virtio_console.c | 155 ++++++++++++++++++++----------------------
include/linux/virtio.h | 3 +
2 files changed, 75 insertions(+), 83 deletions(-)

--
MST

\
 
 \ /
  Last update: 2018-04-20 20:18    [W:3.926 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site