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src: check for NULL pointer passed to _libssh2_get_string

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Callers should be protecting against this, but it's prudent to check
here anyway.

Fixes #802
Closes #848
This commit is contained in:
Dan Fandrich
2023-03-14 11:18:58 -07:00
parent f928da9f95
commit 289b4a1c0c
1 changed files with 1 additions and 1 deletions
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2
src/misc.c
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@@ -834,7 +834,7 @@ int _libssh2_get_string(struct string_buf *buf, unsigned char **outbuf,
size_t *outlen) size_t *outlen)
{ {
uint32_t data_len; uint32_t data_len;
if(_libssh2_get_u32(buf, &data_len) != 0) { if(!buf || _libssh2_get_u32(buf, &data_len) != 0) {
return -1; return -1;
} }
if(!_libssh2_check_length(buf, data_len)) { if(!_libssh2_check_length(buf, data_len)) {