Newly introduced defects

List of Defects

Error: GCC_ANALYZER_WARNING (CWE-476): [#def1]
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:2196: included_from: Included from here.
tcl-8.6.14-build/tcl8.6.14/generic/regc_lex.c: scope_hint: In function ‘chrnamed’
tcl-8.6.14-build/tcl8.6.14/generic/regc_lex.c:1181:11: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘0’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:2198: included_from: Included from here.
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1704:5: note: in expansion of macro ‘NOERR’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c: scope_hint: In function ‘chrnamed’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1711:5: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regc_lex.c:775:5: note: in expansion of macro ‘NOTE’
tcl-8.6.14-build/tcl8.6.14/generic/regc_lex.c:42:61: note: in definition of macro ‘SETV’
tcl-8.6.14-build/tcl8.6.14/generic/regc_lex.c:778:9: note: in expansion of macro ‘RETV’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:2200: included_from: Included from here.
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:2199: included_from: Included from here.
tcl-8.6.14-build/tcl8.6.14/generic/regc_locale.c: scope_hint: In function ‘chrnamed’
tcl-8.6.14-build/tcl8.6.14/generic/regc_locale.c:904:9: note: in expansion of macro ‘NOERRN’
# 1179|   
# 1180|       cv = range(v, c, c, 0);
# 1181|->     if (cv->nchrs == 0) {
# 1182|   	return (chr)lastresort;
# 1183|       }

Error: GCC_ANALYZER_WARNING (CWE-476): [#def2]
tcl-8.6.14-build/tcl8.6.14/generic/regc_nfa.c: scope_hint: In function ‘newarc’
tcl-8.6.14-build/tcl8.6.14/generic/regc_nfa.c:283:26: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘to’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1704:5: note: in expansion of macro ‘NOERR’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c: scope_hint: In function ‘newarc’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1711:5: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1711:5: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1439:5: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1439:5: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1511:9: note: in expansion of macro ‘NEXT’
tcl-8.6.14-build/tcl8.6.14/generic/regcomp.c:1511:9: note: in expansion of macro ‘NEXT’
#  281|   
#  282|       /* check for duplicate arc, using whichever chain is shorter */
#  283|->     if (from->nouts <= to->nins) {
#  284|   	for (a = from->outs; a != NULL; a = a->outchain) {
#  285|   	    if (a->to == to && a->co == co && a->type == t) {

Error: CPPCHECK_WARNING: [#def3]
tcl-8.6.14-build/tcl8.6.14/libtommath/bn_mp_mul_2d.c: information[normalCheckLevelMaxBranches]: Limiting analysis of branches. Use --check-level=exhaustive to analyze all branches.

Error: CPPCHECK_WARNING: [#def4]
tcl-8.6.14-build/tcl8.6.14/libtommath/bn_mp_pack.c: information[normalCheckLevelMaxBranches]: Limiting analysis of branches. Use --check-level=exhaustive to analyze all branches.

Error: CPPCHECK_WARNING: [#def5]
tcl-8.6.14-build/tcl8.6.14/libtommath/bn_s_mp_mul_digs.c: information[normalCheckLevelMaxBranches]: Limiting analysis of branches. Use --check-level=exhaustive to analyze all branches.

Error: CLANG_WARNING: [#def6]
tcl-8.6.14-build/tcl8.6.14/unix/tclUnixPipe.c:543:11: warning[security.insecureAPI.vfork]: Call to function 'vfork' is insecure as it can lead to denial of service situations in the parent process. Replace calls to vfork with calls to the safer 'posix_spawn' function
#  541|       }
#  542|   #else
#  543|->     pid = fork();
#  544|   #endif
#  545|       if (pid == 0) {

Error: CLANG_WARNING: [#def7]
tcl-8.6.14-build/tcl8.6.14/unix/tclUnixPipe.c:547:2: warning[unix.Vfork]: This assignment is prohibited after a successful vfork
#  545|       if (pid == 0) {
#  546|   	size_t len;
#  547|-> 	int joinThisError = errorFile && (errorFile == outputFile);
#  548|   
#  549|   	fd = GetFd(errPipeOut);

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