Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Prevent calling inDataExchange() with a too long responseLength #51

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Prevent calling inDataExchange() with a too long responseLength #51

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions Adafruit_PN532.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -650,6 +650,12 @@ bool Adafruit_PN532::inDataExchange(uint8_t * send, uint8_t sendLength, uint8_t
#endif
return false;
}
if (*responseLength > PN532_PACKBUFFSIZ) {
#ifdef PN532DEBUG
PN532DEBUGPRINT.println(F("responseLength too long for packet buffer"));
#endif
return false;
}
uint8_t i;

pn532_packetbuffer[0] = 0x40; // PN532_COMMAND_INDATAEXCHANGE;
Expand Down