oss-fuzz.sh: take SANITIZER into account

to make it possible to build the fuzzer with UBSan and MSan locally ``` $ SANITIZER=undefined ./src/tests/oss-fuzz.sh $ printf 'lxc.signal.stop=sigrtmax-020000000020' >oss-fuzz-32596 $ UBSAN_OPTIONS=print_stacktrace=1:print_summary=1:halt_on_error=1 ./out/fuzz-lxc-config-read oss-fuzz-32596 INFO: Seed: 595864277 INFO: Loaded 1 modules (61553 inline 8-bit counters): 61553 [0x80a1b0, 0x819221), INFO: Loaded 1 PC tables (61553 PCs): 61553 [0x819228,0x909938), ./out/fuzz-lxc-config-read: Running 1 inputs 1 time(s) each. Running: oss-fuzz-32596 confile_utils.c:1051:20: runtime error: signed integer overflow: 64 - -2147483632 cannot be represented in type 'int' #0 0x51799a in rt_sig_num /home/vagrant/lxc/src/lxc/confile_utils.c:1051:20 #1 0x517268 in sig_parse /home/vagrant/lxc/src/lxc/confile_utils.c:1069:11 #2 0x500ca4 in set_config_signal_stop /home/vagrant/lxc/src/lxc/confile.c:1738:10 #3 0x4b8c7c in parse_line /home/vagrant/lxc/src/lxc/confile.c:2962:9 #4 0x5a5eb0 in lxc_file_for_each_line_mmap /home/vagrant/lxc/src/lxc/parse.c:125:9 ``` Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>

oss-fuzz.sh: take SANITIZER into account
affdb4a4 · Evgeny Vereshchagin · Christian Brauner · 8122eb0f · affdb4a4
Unverified Commit affdb4a4 authored Mar 28, 2021 by Evgeny Vereshchagin Committed by Christian Brauner Mar 29, 2021
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oss-fuzz.sh src/tests/oss-fuzz.sh +7 -1

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--- a/src/tests/oss-fuzz.sh
+++ b/src/tests/oss-fuzz.sh
@@ -4,9 +4,15 @@ set -ex
 export SANITIZER=${SANITIZER:-address}
 flags="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
-sanitizer_flags="-fsanitize=address -fsanitize-address-use-after-scope"
 coverage_flags="-fsanitize=fuzzer-no-link"
+sanitizer_flags="-fsanitize=address -fsanitize-address-use-after-scope"
+if [[ "$SANITIZER" == "undefined" ]]; then
+    sanitizer_flags="-fsanitize=undefined"
+elif [[ "$SANITIZER" == "memory" ]]; then
+    sanitizer_flags="-fsanitize=memory -fsanitize-memory-track-origins"
+fi
 export CC=${CC:-clang}
 export CFLAGS=${CFLAGS:-$flags $sanitizer_flags $coverage_flags}