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alex-w-99 / Checkpointing-Program

A lightweight checkpointing program written in C.
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Stack Smashing Detected, despite compiling with `-fno-stack-protector` #1

Open paniq opened 9 months ago

paniq commented 9 months ago

Despite compiling with -fno-stack-protector added to CFLAGS, make check still fails:

make all
make[1]: Entering directory 'redacted/Checkpointing-Program'
gcc -O0 -fno-stack-protector -o ckpt0 ckpt.c
cp ckpt0 ckpt
rm ckpt0
make[1]: Leaving directory 'redacted/Checkpointing-Program'
rm -f myckpt.dat
./ckpt ./counting-test 17 &
sleep 4
*** We are running, using ckpt ***
Counting from number 17
The next counting number is: 17
The next counting number is: 18
The next counting number is: 19
The next counting number is: 20
kill -12 `pgrep --newest counting-test`
The next counting number is: 21
*** WRITING CHECKPOINT IMAGE FILE ***
pkill -9 counting-test
The next counting number is: 22
./restart
*** RESTARTING ***
*** stack smashing detected ***: terminated
make: *** [Makefile:43: check] Aborted (core dumped)

this is on Linux 5.15.0-97-generic, Ubuntu 22.04.04 LTS

harshitaleela commented 2 months ago

Despite compiling with -fno-stack-protector added to CFLAGS, make check still fails:

make all
make[1]: Entering directory 'redacted/Checkpointing-Program'
gcc -O0 -fno-stack-protector -o ckpt0 ckpt.c
cp ckpt0 ckpt
rm ckpt0
make[1]: Leaving directory 'redacted/Checkpointing-Program'
rm -f myckpt.dat
./ckpt ./counting-test 17 &
sleep 4
*** We are running, using ckpt ***
Counting from number 17
The next counting number is: 17
The next counting number is: 18
The next counting number is: 19
The next counting number is: 20
kill -12 `pgrep --newest counting-test`
The next counting number is: 21
*** WRITING CHECKPOINT IMAGE FILE ***
pkill -9 counting-test
The next counting number is: 22
./restart
*** RESTARTING ***
*** stack smashing detected ***: terminated
make: *** [Makefile:43: check] Aborted (core dumped)

this is on Linux 5.15.0-97-generic, Ubuntu 22.04.04 LTS

Hi paniq, Did you figure out a solution for this? I am using the same version of ubuntu as you and facing the same problem.