From: Dominique Martinet asmadeus@codewreck.org
commit 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc upstream.
Link: https://lkml.kernel.org/r/99338965-d36c-886e-cd0e-1d8fff2b4746@gmail.com Reported-by: syzbot+06472778c97ed94af66d@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Dominique Martinet asmadeus@codewreck.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/9p/client.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/9p/client.c +++ b/net/9p/client.c @@ -539,6 +539,8 @@ static int p9_check_errors(struct p9_cli kfree(ename); } else { err = p9pdu_readf(&req->rc, c->proto_version, "d", &ecode); + if (err) + goto out_err; err = -ecode;
p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);