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MFP4: guard against null pointer dereference which sshd can cause (#25271)

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This commit is contained in:
Dag-Erling Smørgrav 2003-02-16 11:28:55 +00:00
parent f3ea2ebc1b
commit 83a75cff45
1 changed files with 2 additions and 2 deletions
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4
contrib/openpam/lib/pam_vprompt.c
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@ -31,7 +31,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $P4: //depot/projects/openpam/lib/pam_vprompt.c#8 $
* $P4: //depot/projects/openpam/lib/pam_vprompt.c#9 $
*/
#include <stdarg.h>
@ -66,7 +66,7 @@ pam_vprompt(pam_handle_t *pamh,
r = pam_get_item(pamh, PAM_CONV, (const void **)&conv);
if (r != PAM_SUCCESS)
RETURNC(r);
if (conv == NULL) {
if (conv == NULL || conv->conv == NULL) {
openpam_log(PAM_LOG_ERROR, "no conversation function");
RETURNC(PAM_SYSTEM_ERR);
}