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| author | K900 <me@0upti.me> | 2024-04-14 16:41:06 +0300 |
|---|---|---|
| committer | K900 <me@0upti.me> | 2024-04-15 10:25:29 +0300 |
| commit | effc28f6f5621cf0c32716f2137f9aee7567aa48 (patch) | |
| tree | fe889bc617882fe55bfcb159c5241cbada149e80 /src/libstore/build/local-derivation-goal.cc | |
| parent | 8d15e6af4b7446b8f542edfee8da035c97bdbbca (diff) | |
libstore/build: set NO_NEW_PRIVS for the sandbox
Change-Id: I711f64e2b68495ed9c85c1a4bd5025405805e43a
Diffstat (limited to 'src/libstore/build/local-derivation-goal.cc')
| -rw-r--r-- | src/libstore/build/local-derivation-goal.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc index 193fc598e..35e7ce907 100644 --- a/src/libstore/build/local-derivation-goal.cc +++ b/src/libstore/build/local-derivation-goal.cc @@ -41,6 +41,7 @@ #include <sched.h> #include <sys/param.h> #include <sys/mount.h> +#include <sys/prctl.h> #include <sys/syscall.h> #if HAVE_SECCOMP #include <seccomp.h> @@ -1949,6 +1950,10 @@ void LocalDerivationGoal::runChild() throw SysError("setuid failed"); setUser = false; + + // Make sure we can't possibly gain new privileges in the sandbox + if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1) + throw SysError("PR_SET_NO_NEW_PRIVS failed"); } #endif |