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Code Activity

buffer.c: Fix null pointer dereference error

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This issue was discovered by covscan tool.

Signed-off-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Norbert Pocs
2023-05-02 16:47:57 +02:00
committed by Andreas Schneider
parent 9f8d46a45a
commit 0e3bb8cbf9
1 changed files with 2 additions and 1 deletions
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3
src/buffer.c
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@@ -748,7 +748,8 @@ uint32_t ssh_buffer_get_u64(struct ssh_buffer_struct *buffer, uint64_t *data){
*/
int ssh_buffer_validate_length(struct ssh_buffer_struct *buffer, size_t len)
{
if (buffer->pos + len < len || buffer->pos + len > buffer->used) {
if (buffer == NULL || buffer->pos + len < len ||
buffer->pos + len > buffer->used) {
return SSH_ERROR;
}