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MCOL-1579 Remove chmod of /dev/shm

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We appear to chmod /dev/shm as a workaround to a CentOS 7 bug that was
fixed last year which accidentally set it to 755. If a user has /dev/shm
locked down we should get them to fix it rather than modifying it
ourselves.

The code before this fixed changed a root install to 755 for /dev/shm
which instantly broke anything using mmap() with MAP_SHARED as an
unprivileged user.
This commit is contained in:
Andrew Hutchings
2018-07-23 10:40:18 +01:00
parent 49f124b61d
commit 979d00a679
3 changed files with 0 additions and 15 deletions
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7
procmon/processmonitor.cpp
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@@ -988,13 +988,6 @@ void ProcessMonitor::processMessage(messageqcpp::ByteStream msg, messageqcpp::IO
int requestStatus = oam::API_SUCCESS;
log.writeLog(__LINE__, "MSG RECEIVED: Start All process request...");
// change permissions on /dev/shm
string cmd = "chmod 755 /dev/shm >/dev/null 2>&1";
if ( !rootUser)
cmd = "sudo chmod 777 /dev/shm >/dev/null 2>&1";
system(cmd.c_str());
//start the mysqld daemon
try {
oam.actionMysqlCalpont(MYSQL_START);