[lkml]   [1998]   [Oct]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] modules_install
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 (

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:44    [W:0.099 / U:1.172 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site