Fixed findings

List of Findings

Error: GCC_ANALYZER_WARNING (CWE-476): [#def1]
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c: scope_hint: In function ‘ui_create_label’
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c:2180:30: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc(fdisk_get_nlabels(*cf.cxt) + 1, 32)’
util-linux-2.42.start-build/util-linux-2.42.start/include/debug.h:104:17: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_STRING’
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c:271:9: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_ENV’
util-linux-2.42.start-build/util-linux-2.42.start/include/debug.h:104:17: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_STRING’
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c:271:9: note: in expansion of macro ‘__UL_INIT_DEBUG_FROM_ENV’
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c:267:25: note: in expansion of macro ‘__UL_DBG’
util-linux-2.42.start-build/util-linux-2.42.start/disk-utils/cfdisk.c:2169:9: note: in expansion of macro ‘DBG’
# 2178|   		    fdisk_label_get_type(lb) == FDISK_DISKLABEL_BSD)
# 2179|   			continue;
# 2180|-> 		cm[i++].name = fdisk_label_get_name(lb);
# 2181|   	}
# 2182|   

Error: GCC_ANALYZER_WARNING (CWE-476): [#def2]
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/blkid.c: scope_hint: In function ‘main’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/blkid.c:889:43: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)(argc - optind), 8) + (long unsigned int)numdev * 8’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/blkid.c:49: included_from: Included from here.
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/blkid.c:18: included_from: Included from here.
#  887|   				continue;
#  888|   
#  889|-> 			devices[numdev++] = dev;
#  890|   		}
#  891|   

Error: GCC_ANALYZER_WARNING (CWE-476): [#def3]
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/cal.c: scope_hint: In function ‘monthly’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/cal.c:1085:28: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)*ctl.months_in_row, 208) + (sizetype)i * 208’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/cal.c:79: included_from: Included from here.
# 1083|   
# 1084|   	for (i = 0; i < ctl->months_in_row - 1; i++)
# 1085|-> 		ms[i].next = &ms[i + 1];
# 1086|   
# 1087|   	rows = (ctl->num_months - 1) / ctl->months_in_row;

Error: GCC_ANALYZER_WARNING (CWE-476): [#def4]
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/hardlink.c: scope_hint: In function ‘get_sorted_xattr_name_table’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/hardlink.c:529:26: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc((long unsigned int)n, 8) + (long unsigned int)i * 8’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/hardlink.c: scope_hint: In function ‘get_sorted_xattr_name_table’
util-linux-2.42.start-build/util-linux-2.42.start/include/optutils.h:8: included_from: Included from here.
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/hardlink.c:58: included_from: Included from here.
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/hardlink.c:55: included_from: Included from here.
#  527|   
#  528|   	for (i = 0; i < n; i++) {
#  529|-> 		table[i] = names;
#  530|   		names += strlen(names) + 1;
#  531|   	}

Error: GCC_ANALYZER_WARNING (CWE-476): [#def5]
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/waitpid.c: scope_hint: In function ‘open_pidfds’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/waitpid.c:64:27: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘xcalloc(n_pids, 4)’
util-linux-2.42.start-build/util-linux-2.42.start/include/strutils.h:53:64: note: in definition of macro ‘strtopid_or_err’
util-linux-2.42.start-build/util-linux-2.42.start/misc-utils/waitpid.c:54:55: note: in expansion of macro ‘_’
#   62|   
#   63|   	for (size_t i = 0; i < n_pids; i++) {
#   64|-> 		pidfds[i] = pidfd_open(pids[i], 0);
#   65|   		if (pidfds[i] == -1) {
#   66|   			if (allow_exited && errno == ESRCH) {

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