Structure msm_audio_stats is copied to userland with some fields unitialized. It leads to leaking of contents of kernel stack memory.
Signed-off-by: Vasiliy Kulikov <[email protected]> --- drivers/staging/dream/qdsp5/audio_in.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/staging/dream/qdsp5/audio_in.c b/drivers/staging/dream/qdsp5/audio_in.c index b51fa09..a14f7ce 100644 --- a/drivers/staging/dream/qdsp5/audio_in.c +++ b/drivers/staging/dream/qdsp5/audio_in.c @@ -612,6 +612,7 @@ static long audio_in_ioctl(struct file *file, if (cmd == AUDIO_GET_STATS) { struct msm_audio_stats stats; + memset(&stats, 0, sizeof(stats)); stats.byte_count = atomic_read(&audio->in_bytes); if (copy_to_user((void *) arg, &stats, sizeof(stats))) return -EFAULT; -- 1.7.0.4 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
