[Bug] Infinite loop in tcprewrite at get.c:569
TimChan2001 opened this issue · 3 comments
Describe the bug
Tcprewrite gets stuck in an infinite loop at the while loop at get.c:569.
To Reproduce
Steps to reproduce the behavior:
- export CC=clang && export CFLAGS="-fsanitize=address -g"
- ./autogen.sh && ./configure --disable-shared --disable-local-libopts && make clean && make -j8
- ./src/tcprewrite -o /dev/null -i POC
The POC file can be downloaded in POC
Expected behavior
The program continues to run for over a week without termination.
System (please complete the following information):
- OS: Ubuntu
- OS version: 16.04, 64 bit
- Tcpreplay Version: 4.4.4
Additional context
After debugging with GDB and adding debug outputs, it seems the program is unable to exit the while loop at get.c:569.
Hi @TimChan2001
I have proposed a small fix for the issue you raised.
I should have tested on the same env you described but got an different error with your pcap first:
Fatal Error: Unable to open input pcap file: unsupported pcap savefile version 60418.4
I had to rewrite it to first and then reproduced the issue.
The fix seems straightforward enough, I expect it will work for you.
BR,
Not merged yet - reopening