Ack On Tue, Sep 24, 2024 at 6:11 PM Liu Kui <kui....@virtuozzo.com> wrote: > > 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)
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