auth: Fix possible NULL pointer dereference
explicit_bzero() doesn't handle NULL. Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Этот коммит содержится в:
родитель
4de8ed684b
Коммит
8f1e995cec
@ -1228,7 +1228,9 @@ void ssh_kbdint_free(ssh_kbdint kbd) {
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n = kbd->nprompts;
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n = kbd->nprompts;
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if (kbd->prompts) {
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if (kbd->prompts) {
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for (i = 0; i < n; i++) {
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for (i = 0; i < n; i++) {
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explicit_bzero(kbd->prompts[i], strlen(kbd->prompts[i]));
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if (kbd->prompts[i] != NULL) {
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explicit_bzero(kbd->prompts[i], strlen(kbd->prompts[i]));
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}
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SAFE_FREE(kbd->prompts[i]);
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SAFE_FREE(kbd->prompts[i]);
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}
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}
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SAFE_FREE(kbd->prompts);
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SAFE_FREE(kbd->prompts);
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@ -1237,7 +1239,9 @@ void ssh_kbdint_free(ssh_kbdint kbd) {
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n = kbd->nanswers;
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n = kbd->nanswers;
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if (kbd->answers) {
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if (kbd->answers) {
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for (i = 0; i < n; i++) {
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for (i = 0; i < n; i++) {
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explicit_bzero(kbd->answers[i], strlen(kbd->answers[i]));
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if (kbd->answers[i] != NULL) {
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explicit_bzero(kbd->answers[i], strlen(kbd->answers[i]));
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}
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SAFE_FREE(kbd->answers[i]);
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SAFE_FREE(kbd->answers[i]);
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}
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}
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SAFE_FREE(kbd->answers);
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SAFE_FREE(kbd->answers);
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