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Commit c10e1411 authored by Treehugger Robot's avatar Treehugger Robot Committed by Gerrit Code Review
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Merge "init: Read previous state of securebits before modifying"

parents c997cd64 f5965519

init/service.cpp

+9 −2
Original line number Diff line number Diff line
@@ -235,8 +235,15 @@ void Service::KillProcessGroup(int signal) { 
void Service::SetProcessAttributes() {

    // Keep capabilites on uid change.

    if (capabilities_.any() && uid_) {

        if (prctl(PR_SET_SECUREBITS, SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED) != 0) {

            PLOG(FATAL) << "prtcl(PR_SET_KEEPCAPS) failed for " << name_;

        // If Android is running in a container, some securebits might already

        // be locked, so don't change those.

        int64_t securebits = prctl(PR_GET_SECUREBITS);

        if (securebits == -1) {

            PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_;

        }

        securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED;

        if (prctl(PR_SET_SECUREBITS, securebits) != 0) {

            PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_;

        }

    }