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| author | Andrew Bartlett <abartlet@samba.org> | 2019-11-07 15:08:18 +1300 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2019-11-18 19:39:30 +0000 |
| commit | 43bc0b2c763284ec63ca1e750602f6a9b354f9ae (patch) | |
| tree | 9783e6734590c2c3e276071aea8055316fd5cae0 /lib/fuzzing/fuzz_oLschema2ldif.c | |
| parent | 4aea5c0972de53c143530cc42ef6d3b8cfafb973 (diff) | |
| download | samba-43bc0b2c763284ec63ca1e750602f6a9b354f9ae.tar.gz | |
lib/fuzzing: Avoid NULL pointer de-ref from 0-length input
fmemopen() does not like 0-length input.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Diffstat (limited to 'lib/fuzzing/fuzz_oLschema2ldif.c')
| -rw-r--r-- | lib/fuzzing/fuzz_oLschema2ldif.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/fuzzing/fuzz_oLschema2ldif.c b/lib/fuzzing/fuzz_oLschema2ldif.c index 4dd5668e673..a983f48d660 100644 --- a/lib/fuzzing/fuzz_oLschema2ldif.c +++ b/lib/fuzzing/fuzz_oLschema2ldif.c @@ -34,6 +34,14 @@ int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len) TALLOC_CTX *mem_ctx; struct conv_options opt; + if (len == 0) { + /* + * Otherwise fmemopen() will return null and set errno + * to EINVAL + */ + return 0; + } + mem_ctx = talloc_init(__FUNCTION__); opt.in = fmemopen(buf, len, "r"); |