SDLe fix: refactor, remove drop_privileges() and capability management from main.c#9
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dvledtx delegates all VFIO and hugepage operations to mtl_init() inside the MTL library. Whether those operations require elevated privileges is purely a system configuration concern, not an application concern. With the recommended pre-configuration on the host: - udev rule granting the service user ownership of /dev/vfio/<group> - LimitMEMLOCK=infinity in the systemd unit (or /etc/security/limits.conf) mtl_init() succeeds without any elevated capabilities. The application should run as a plain unprivileged service user with no capability management needed. Removes: - drop_privileges() function and its E-1 comment block - #include <linux/capability.h> - #include <sys/prctl.h> - #include <sys/syscall.h> - #include <sys/mman.h> (unused after removal)
dvledtx delegates all VFIO and hugepage operations to mtl_init() inside the MTL library. Whether those operations require elevated privileges is purely a system configuration concern, not an application concern. With the recommended pre-configuration on the host: - udev rule granting the service user ownership of /dev/vfio/<group> - LimitMEMLOCK=infinity in the systemd unit (or /etc/security/limits.conf) mtl_init() succeeds without any elevated capabilities. The application should run as a plain unprivileged service user with no capability management needed. Removes: - drop_privileges() function and its E-1 comment block - #include <linux/capability.h> - #include <sys/prctl.h> - #include <sys/syscall.h> - #include <sys/mman.h> (unused after removal)
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…ualCloud/directview-led-software-toolkit into remove-privileged-access
…om running binary
…ile/ldd/nm instead
…6-64 for runner portability
- Remove /tmp/ from ALLOWED_LOG_PREFIXES in main.c (world-writable, symlink attack risk) - Add test_validate_log_path_rejects_tmp: verify /tmp paths are rejected - Add test_validate_log_path_allows_var_log: verify /var/log/ is allowed - Add test_validate_log_path_allows_cwd_relative: verify cwd-relative OK - Add test_not_running_as_sudo: verify tests are not run as root
- Add lstat() check in main.c to reject config files that are symlinks - Add test_main_rejects_symlinked_config unit test to verify rejection
roshan-ku
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May 14, 2026
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dvledtx delegates all VFIO and hugepage operations to mtl_init() inside the MTL library. Whether those operations require elevated privileges is purely a system configuration concern, not an application concern.
With the recommended pre-configuration on the host:
mtl_init() succeeds without any elevated capabilities. The application should run as a plain unprivileged service user with no capability management needed.
Removes:
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