Messages in this thread | | | Date | Sun, 4 Oct 1998 22:38:13 +0300 | From | Meelis Roos <> | Subject | Re: [PATCH] modules_install |
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GU> `make modules_install' creates some temporary files inside the kernel source GU> directory. However, if that directory is imported using NFS in the recommended GU> and secure way, root is not allowed to create files there. This patch solves GU> that problem by creating the temporary files in /tmp.
GU> + ls *.o > /tmp/.allmods.$$$$; \
NO! This creates a race condition allowing malicious user to overwrite any file if (s)he creates dozens of symlinks in /tmp. Using just pid to guarantee uniqueness of the name is not enough. And we don't want do depend on 'mktemp'... So I can't offer any good solution. A private directory in /tmp? In a shell script and without race conditions - how?
-- Meelis Roos (mroos@tartu.cyber.ee)
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