diff options
Diffstat (limited to 'src/libstore')
| -rw-r--r-- | src/libstore/build.cc | 3 | ||||
| -rw-r--r-- | src/libstore/globals.hh | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index f40a8c549..355fb3b7d 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -2340,6 +2340,9 @@ void setupSeccomp() seccomp_rule_add(ctx, SCMP_ACT_ERRNO(ENOTSUP), SCMP_SYS(fsetxattr), 0) != 0) throw SysError("unable to add seccomp rule"); + if (seccomp_attr_set(ctx, SCMP_FLTATR_CTL_NNP, settings.allowNewPrivileges ? 0 : 1) != 0) + throw SysError("unable to set 'no new privileges' seccomp attribute"); + if (seccomp_load(ctx) != 0) throw SysError("unable to load seccomp BPF program"); #endif diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh index af37ec61d..c8d67b071 100644 --- a/src/libstore/globals.hh +++ b/src/libstore/globals.hh @@ -321,6 +321,12 @@ public: Setting<std::string> userAgentSuffix{this, "", "user-agent-suffix", "String appended to the user agent in HTTP requests."}; + +#if __linux__ + Setting<bool> allowNewPrivileges{this, false, "allow-new-privileges", + "Whether builders can acquire new privileges by calling programs with " + "setuid/setgid bits or with file capabilities."}; +#endif }; |