31 lines
994 B
Diff
31 lines
994 B
Diff
From d0dc59e27263c6b53435d770010dcc6f397d58ee Mon Sep 17 00:00:00 2001
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From: Frank Sorenson <sorenson@redhat.com>
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Date: Mon, 17 Jan 2022 13:33:13 -0500
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Subject: [PATCH] libtirpc: Fix use-after-free accessing the error number
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Free the cbuf after obtaining the error number.
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Signed-off-by: Frank Sorenson <sorenson@redhat.com>
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Signed-off-by: Steve Dickson <steved@redhat.com>
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---
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src/clnt_dg.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/clnt_dg.c b/src/clnt_dg.c
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index e1255de..b3d82e7 100644
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--- a/src/clnt_dg.c
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+++ b/src/clnt_dg.c
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@@ -456,9 +456,9 @@ get_reply:
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cmsg = CMSG_NXTHDR (&msg, cmsg))
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if (cmsg->cmsg_level == SOL_IP && cmsg->cmsg_type == IP_RECVERR)
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{
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- mem_free(cbuf, (outlen + 256));
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e = (struct sock_extended_err *) CMSG_DATA(cmsg);
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cu->cu_error.re_errno = e->ee_errno;
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+ mem_free(cbuf, (outlen + 256));
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release_fd_lock(cu->cu_fd_lock, mask);
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return (cu->cu_error.re_status = RPC_CANTRECV);
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}
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--
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1.8.3.1
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