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MFP4: guard against null pointer dereference which sshd can cause (#25271)
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/vendor/openpam/dist/; revision=110989
@ -31,7 +31,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $P4: //depot/projects/openpam/lib/pam_vprompt.c#8 $
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* $P4: //depot/projects/openpam/lib/pam_vprompt.c#9 $
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*/
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#include <stdarg.h>
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@ -66,7 +66,7 @@ pam_vprompt(pam_handle_t *pamh,
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r = pam_get_item(pamh, PAM_CONV, (const void **)&conv);
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if (r != PAM_SUCCESS)
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RETURNC(r);
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if (conv == NULL) {
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if (conv == NULL || conv->conv == NULL) {
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openpam_log(PAM_LOG_ERROR, "no conversation function");
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RETURNC(PAM_SYSTEM_ERR);
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}
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