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Diffstat (limited to 'patches/glibc-2.23/0005-CVE-2016-4429-sunrpc-Do-not-use-alloca-in-clntudp_ca.patch')
-rw-r--r--patches/glibc-2.23/0005-CVE-2016-4429-sunrpc-Do-not-use-alloca-in-clntudp_ca.patch52
1 files changed, 0 insertions, 52 deletions
diff --git a/patches/glibc-2.23/0005-CVE-2016-4429-sunrpc-Do-not-use-alloca-in-clntudp_ca.patch b/patches/glibc-2.23/0005-CVE-2016-4429-sunrpc-Do-not-use-alloca-in-clntudp_ca.patch
deleted file mode 100644
index ebb3cd4..0000000
--- a/patches/glibc-2.23/0005-CVE-2016-4429-sunrpc-Do-not-use-alloca-in-clntudp_ca.patch
+++ /dev/null
@@ -1,52 +0,0 @@
-From: Florian Weimer <fweimer@redhat.com>
-Date: Mon, 23 May 2016 20:18:34 +0200
-Subject: [PATCH] CVE-2016-4429: sunrpc: Do not use alloca in clntudp_call [BZ
- #20112]
-
-The call is technically in a loop, and under certain circumstances
-(which are quite difficult to reproduce in a test case), alloca
-can be invoked repeatedly during a single call to clntudp_call.
-As a result, the available stack space can be exhausted (even
-though individual alloca sizes are bounded implicitly by what
-can fit into a UDP packet, as a side effect of the earlier
-successful send operation).
-
-(cherry picked from commit bc779a1a5b3035133024b21e2f339fe4219fb11c)
----
- sunrpc/clnt_udp.c | 10 +++++++++-
- 1 file changed, 9 insertions(+), 1 deletion(-)
-
-diff --git a/sunrpc/clnt_udp.c b/sunrpc/clnt_udp.c
-index a6cf5f1ca733..4d9acb1e6a6b 100644
---- a/sunrpc/clnt_udp.c
-+++ b/sunrpc/clnt_udp.c
-@@ -388,9 +388,15 @@ send_again:
- struct sock_extended_err *e;
- struct sockaddr_in err_addr;
- struct iovec iov;
-- char *cbuf = (char *) alloca (outlen + 256);
-+ char *cbuf = malloc (outlen + 256);
- int ret;
-
-+ if (cbuf == NULL)
-+ {
-+ cu->cu_error.re_errno = errno;
-+ return (cu->cu_error.re_status = RPC_CANTRECV);
-+ }
-+
- iov.iov_base = cbuf + 256;
- iov.iov_len = outlen;
- msg.msg_name = (void *) &err_addr;
-@@ -415,10 +421,12 @@ send_again:
- cmsg = CMSG_NXTHDR (&msg, cmsg))
- if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVERR)
- {
-+ free (cbuf);
- e = (struct sock_extended_err *) CMSG_DATA(cmsg);
- cu->cu_error.re_errno = e->ee_errno;
- return (cu->cu_error.re_status = RPC_CANTRECV);
- }
-+ free (cbuf);
- }
- #endif
- do