An uninitialized local variable is passed to a function and used there, which of course crashes kernel. Fixed here.
https://virtuozzo.atlassian.net/browse/VSTOR-92924 Signed-off-by: Liu Kui <kui....@virtuozzo.com> --- fs/fuse/kio/pcs/pcs_krpc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/fuse/kio/pcs/pcs_krpc.c b/fs/fuse/kio/pcs/pcs_krpc.c index f62bf6ef11aa..0ef33b730204 100644 --- a/fs/fuse/kio/pcs/pcs_krpc.c +++ b/fs/fuse/kio/pcs/pcs_krpc.c @@ -563,6 +563,9 @@ static long pcs_krpc_ioctl(struct file *file, unsigned int cmd, unsigned long ar case PCS_KRPC_IOC_RECV_MSG: { struct pcs_krpc_ioc_recvmsg req; + if (copy_from_user(&req, (void __user *)arg, sizeof(req))) + return -EFAULT; + res = pcs_krpc_ioctl_recv_msg(krpc, &req); if (copy_to_user((void __user *)arg, &req, sizeof(req))) -- 2.39.3 (Apple Git-146) _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
