On Sat, 2024-04-20 at 19:48 +0900, Lex Siegel wrote: > When using a bpf on kernel_connect(), the call can return -EPERM. > This causes xs_tcp_setup_socket() to loop forever, filling up the > syslog and causing the kernel to freeze up. > > Signed-off-by: Lex Siegel <usiegl00@xxxxxxxxx> > --- > net/sunrpc/xprtsock.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c > index bb9b747d58a1..47b254806a08 100644 > --- a/net/sunrpc/xprtsock.c > +++ b/net/sunrpc/xprtsock.c > @@ -2446,6 +2446,8 @@ static void xs_tcp_setup_socket(struct work_struct *work) > /* Happens, for instance, if the user specified a link > * local IPv6 address without a scope-id. > */ > + case -EPERM: > + /* Happens, for instance, if a bpf is preventing the connect */ > case -ECONNREFUSED: > case -ECONNRESET: > case -ENETDOWN: Yeah, I think we'd consider -EPERM a permanent error. Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
