mirror of https://gitee.com/openkylin/linux.git
8e6b1a72a7
In loopback_open() and loopback_close(), we assign and release the substream object to the corresponding cable in a racy way. It's neither locked nor done in the right position. The open callback assigns the substream before its preparation finishes, hence the other side of the cable may pick it up, which may lead to the invalid memory access. This patch addresses these: move the assignment to the end of the open callback, and wrap with cable->lock for avoiding concurrent accesses. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
|---|---|---|
| .. | ||
| mpu401 | ||
| opl3 | ||
| opl4 | ||
| pcsp | ||
| vx | ||
| Kconfig | ||
| Makefile | ||
| aloop.c | ||
| dummy.c | ||
| ml403-ac97cr.c | ||
| mtpav.c | ||
| mts64.c | ||
| pcm-indirect2.c | ||
| pcm-indirect2.h | ||
| portman2x4.c | ||
| serial-u16550.c | ||
| virmidi.c | ||