I am creating a new shared memory object like so
int fd = shm_open("somekey", O_CREAT | O_RDWR, S_IRWXU | S_IRWXG);
The return value is fine and I expect to find something like the following in /dev/shm
-rwxrwx--- 1 root group 4096 Jun 27 19:08 somekey
but instead the write access in the files are missing and I don’t know why.
-rwxr-x--- 1 root group 4096 Jun 27 19:08 somekey