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SUSE:SLE-12-SP4:GA
glibc.1872
iconv-ibm-sentinel-check.patch
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File iconv-ibm-sentinel-check.patch of Package glibc.1872
2014-08-29 Florian Weimer <fweimer@redhat.com> [BZ #17325] * iconvdata/ibm1364.c (BODY): Fix check for sentinel. * iconvdata/ibm932.c (BODY): Replace invalid sentinel check with assert. * iconvdata/ibm933.c (BODY): Fix check for sentinel. * iconvdata/ibm935.c (BODY): Likewise. * iconvdata/ibm937.c (BODY): Likewise. * iconvdata/ibm939.c (BODY): Likewise. * iconvdata/ibm943.c (BODY): Replace invalid sentinel check with assert. * iconvdata/Makefile (iconv-test.out): Pass module list to test script. * iconvdata/run-iconv-test.sh: New test loop for checking for decoder crashers. Index: glibc-2.19/iconvdata/Makefile =================================================================== --- glibc-2.19.orig/iconvdata/Makefile +++ glibc-2.19/iconvdata/Makefile @@ -302,6 +302,7 @@ $(objpfx)bug-iconv10.out: $(objpfx)gconv $(objpfx)iconv-test.out: run-iconv-test.sh $(objpfx)gconv-modules \ $(addprefix $(objpfx),$(modules.so)) \ $(common-objdir)/iconv/iconv_prog TESTS + iconv_modules="$(modules)" \ $(SHELL) $< $(common-objdir) '$(test-wrapper)' > $@ $(objpfx)tst-tables.out: tst-tables.sh $(objpfx)gconv-modules \ Index: glibc-2.19/iconvdata/ibm1364.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm1364.c +++ glibc-2.19/iconvdata/ibm1364.c @@ -220,7 +220,8 @@ enum ++rp2; \ \ uint32_t res; \ - if (__builtin_expect (ch < rp2->start, 0) \ + if (__builtin_expect (rp2->start == 0xffff, 0) \ + || __builtin_expect (ch < rp2->start, 0) \ || (res = DB_TO_UCS4[ch + rp2->idx], \ __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ { \ Index: glibc-2.19/iconvdata/ibm932.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm932.c +++ glibc-2.19/iconvdata/ibm932.c @@ -73,11 +73,12 @@ } \ \ ch = (ch * 0x100) + inptr[1]; \ + /* ch was less than 0xfd. */ \ + assert (ch < 0xfd00); \ while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ - || __builtin_expect (ch < rp2->start, 0) \ + if (__builtin_expect (ch < rp2->start, 0) \ || (res = __ibm932db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, '\1') == 0 && ch !=0)) \ { \ Index: glibc-2.19/iconvdata/ibm933.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm933.c +++ glibc-2.19/iconvdata/ibm933.c @@ -161,7 +161,7 @@ enum while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ + if (__builtin_expect (rp2->start == 0xffff, 0) \ || __builtin_expect (ch < rp2->start, 0) \ || (res = __ibm933db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ Index: glibc-2.19/iconvdata/ibm935.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm935.c +++ glibc-2.19/iconvdata/ibm935.c @@ -161,7 +161,7 @@ enum while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ + if (__builtin_expect (rp2->start == 0xffff, 0) \ || __builtin_expect (ch < rp2->start, 0) \ || (res = __ibm935db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ Index: glibc-2.19/iconvdata/ibm937.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm937.c +++ glibc-2.19/iconvdata/ibm937.c @@ -161,7 +161,7 @@ enum while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ + if (__builtin_expect (rp2->start == 0xffff, 0) \ || __builtin_expect (ch < rp2->start, 0) \ || (res = __ibm937db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ Index: glibc-2.19/iconvdata/ibm939.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm939.c +++ glibc-2.19/iconvdata/ibm939.c @@ -161,7 +161,7 @@ enum while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ + if (__builtin_expect (rp2->start == 0xffff, 0) \ || __builtin_expect (ch < rp2->start, 0) \ || (res = __ibm939db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ Index: glibc-2.19/iconvdata/ibm943.c =================================================================== --- glibc-2.19.orig/iconvdata/ibm943.c +++ glibc-2.19/iconvdata/ibm943.c @@ -74,11 +74,12 @@ } \ \ ch = (ch * 0x100) + inptr[1]; \ + /* ch was less than 0xfd. */ \ + assert (ch < 0xfd00); \ while (ch > rp2->end) \ ++rp2; \ \ - if (__builtin_expect (rp2 == NULL, 0) \ - || __builtin_expect (ch < rp2->start, 0) \ + if (__builtin_expect (ch < rp2->start, 0) \ || (res = __ibm943db_to_ucs4[ch + rp2->idx], \ __builtin_expect (res, '\1') == 0 && ch !=0)) \ { \ Index: glibc-2.19/iconvdata/run-iconv-test.sh =================================================================== --- glibc-2.19.orig/iconvdata/run-iconv-test.sh +++ glibc-2.19/iconvdata/run-iconv-test.sh @@ -188,6 +188,24 @@ while read utf8 from filename; do done < TESTS2 +# Check for crashes in decoders. +printf '\016\377\377\377\377\377\377\377' > $temp1 +for from in $iconv_modules ; do + echo $ac_n "test decoder $from $ac_c" + PROG=`eval echo $ICONV` + if $PROG < $temp1 >/dev/null 2>&1 ; then + : # fall through + else + status=$? + if test $status -gt 1 ; then + echo "/FAILED" + failed=1 + continue + fi + fi + echo "OK" +done + exit $failed # Local Variables: # mode:shell-script
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