Messages in this thread | | | Date | Mon, 14 Jun 2010 13:45:57 -0700 | Subject | fs/exec.c core dumping on NFS mounted directory | From | Lei Sun <> |
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Hi : In 2.6.3x, I am logging in as a root and running app from NFS mounted directory. The app crashed with 0 bytes core file (I have set "ulimit -c unlimited", so it's not an issue). The following code in fs/exec.c is causing this:
/* * Dont allow local users get cute and trick others to coredump * into their pre-created files: * Note, this is not relevant for pipes */ if (!ispipe && (inode->i_uid != current_fsuid())) goto close_fail;
What is the intention of above piece of code? If it's security concern, it clearly break the NFS mounted (different uid) core dumping logic.
P.S. CC to my email, i am not on the list.
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