Messages in this thread | | | Subject | [PATCH V2 0/2] [BUGFIX] virtio/console: Fix two bugs of splice_write | From | Yoshihiro YUNOMAE <> | Date | Fri, 19 Jul 2013 18:19:51 +0900 |
| |
Hi,
This patch set fixes two bugs of splice_write in the virtio-console driver.
[BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write. => This induces oops in sg_init_table().
[BUG2] No lock for competition of splice_write. => This induces oops in splice_from_pipe_feed() by bug of any user application.
These reports are written in each patch.
Changes in V2: - Fix a locking problem for error
Thanks!
---
Yoshihiro YUNOMAE (2): [BUGFIX] virtio/console: Quit from splice_write if pipe->nrbufs is 0 [BUGFIX] virtio/console: Add pipe_lock/unlock for splice_write
drivers/char/virtio_console.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-)
-- Yoshihiro YUNOMAE Software Platform Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: yoshihiro.yunomae.ez@hitachi.com
| |