Stack smashing detected

Question

Stack smashing detected

xeome opened this issue 9 months ago · comments

My xdp programs, xdp-loader and probably other xdp-tools are crashing:

$ sudo xdp-loader status
[sudo] password for xeome:
CURRENT XDP PROGRAM STATUS:

Interface        Prio  Program name      Mode     ID   Tag               Chain actions
--------------------------------------------------------------------------------------
*** stack smashing detected ***: terminated
[1]    5362 IOT instruction  sudo xdp-loader status

in my programs xdp_program__attach function is causing stack smashing. I'm linking with -lbpf -lxdp

I'm running arch linux with latest mainstream kernel (6.6.10)
xdp-tools version: 1.4.1
libxdp version: 1.4.1
libbpf version: 1.3.0

Toke Høiland-Jørgensen · Answer 1 · Thu Jan 11 2024 22:07:31 GMT+0800 (China Standard Time)

Hmm, interesting. Did you compile xdp-tools yourself, or are you using distro packages? Any chance you can try running this using a debugger and getting a backtrace to where the crash is happening?

Emin · Answer 2 · Thu Jan 11 2024 22:22:35 GMT+0800 (China Standard Time)

It appears the problem was with arch linux packaging, both my programs and xdp-tools work fine now. They updated it few days ago. Sorry about that. Closing this issue.

Toke Høiland-Jørgensen · Answer 3 · Thu Jan 11 2024 22:31:57 GMT+0800 (China Standard Time)

Emin ***@***.***> writes:

It appears the problem was with arch linux packaging, both my programs and xdp-tools work fine now. They updated it few days ago. Sorry about that. Closing this issue.

Alright, sounds good; thanks!