File U_19-Return-early-if-size_valp-is-zero.patch of Package slurm.32296

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File U_19-Return-early-if-size_valp-is-zero.patch of Package slurm.32296

From: Tim Wickberg <tim@schedmd.com>
Date: Wed Nov 29 15:37:54 2023 -0700
Subject: [PATCH 19/28]Return early if *size_valp is zero.
Patch-mainline: Upstream
Git-repo: https://github.com/SchedMD/slurm
Git-commit: 14deece8ed95a46c69dabc9231607781628b8639
References: bsc#1218046, bsc#1218050, bsc#1218051, bsc#1218053
Signed-off-by: Egbert Eich <eich@suse.de>

Signed-off-by: Egbert Eich <eich@suse.com>
---
 src/common/pack.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/common/pack.c b/src/common/pack.c
index a9ab41c579..b5131a6afb 100644
--- a/src/common/pack.c
+++ b/src/common/pack.c
@@ -864,6 +864,9 @@ int unpackmem_ptr(char **valp, uint32_t * size_valp, Buf buffer)
 	*valp = NULL;
 	safe_unpack32(size_valp, buffer);
 
+	if (!*size_valp)
+		return SLURM_SUCCESS;
+
 	if (*size_valp > MAX_ARRAY_LEN_LARGE) {
 		error("%s: Buffer to be unpacked is too large (%u > %u)",
 		      __func__, *size_valp, MAX_ARRAY_LEN_LARGE);
@@ -895,6 +898,9 @@ int unpackmem_xmalloc(char **valp, uint32_t * size_valp, Buf buffer)
 	*valp = NULL;
 	safe_unpack32(size_valp, buffer);
 
+	if (!*size_valp)
+		return SLURM_SUCCESS;
+
 	if (*size_valp > MAX_ARRAY_LEN_LARGE) {
 		error("%s: Buffer to be unpacked is too large (%u > %u)",
 		      __func__, *size_valp, MAX_ARRAY_LEN_LARGE);
@@ -928,6 +934,9 @@ int unpackmem_malloc(char **valp, uint32_t * size_valp, Buf buffer)
 	*valp = NULL;
 	safe_unpack32(size_valp, buffer);
 
+	if (!*size_valp)
+		return SLURM_SUCCESS;
+
 	if (*size_valp > MAX_PACK_MEM_LEN) {
 		error("%s: Buffer to be unpacked is too large (%u > %u)",
 		      __func__, *size_valp, MAX_ARRAY_LEN_SMALL);
@@ -970,6 +979,9 @@ int unpackstr_xmalloc_escaped(char **valp, uint32_t *size_valp, Buf buffer)
 	*valp = NULL;
 	safe_unpack32(size_valp, buffer);
 
+	if (!*size_valp)
+		return SLURM_SUCCESS;
+
 	if (*size_valp > MAX_PACK_MEM_LEN) {
 		error("%s: Buffer to be unpacked is too large (%u > %u)",
 		      __func__, *size_valp, MAX_PACK_MEM_LEN);

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File U_19-Return-early-if-size_valp-is-zero.patch of Package slurm.32296

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