Messages in this thread | | | Subject | Re: opening symlinks with O_CREAT under latest 2.5.74 | From | Felipe Alfaro Solana <> | Date | 07 Jul 2003 20:49:29 +0200 |
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On Mon, 2003-07-07 at 17:46, Petr Vandrovec wrote: > Hi, > couple of things stopped working on my box > where I have /dev/vc/XX as symlinks to /dev/ttyXX, and some > things use /dev/vc/XX and some /dev/ttyXX. After last update > hour ago things which use /dev/vc/XX stopped working for > non-root - they now fail with EACCES error if they attempt > to redirect its input or output through '>' or '<>' bash > redirection operators: > > $ touch /tmp/xx > $ ln -s /tmp/xx yy > $ cat > yy > -bash: yy: Permission denied > > Strace says: > > [pid 3268] open("yy", O_WRONLY|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = -1 EACCES (Permission denied) > > This command succeeds on kernel from thursday. Simillar problem is > that > > $ rm /tmp/xx > $ ln -s /tmp/xx yy > $ cat > yy > -bash: yy: No such file or directory > > while it creates /tmp/xx file on older kernels. > > Currently I suspect Trond's LOOKUP_CONTINUE change in > '[PATCH] Add open intent information to the 'struct nameidata', but I > did not tried reverting it yet to find whether it is culprit or no. But > other changes than these four from Trond looks completely innocent.
JFYI, on Red Hat 9, I'm having problems when using "vi" to edit a file through a symbolic link. For example, I can't save changes with ":wq!" in vi when editing "/etc/grub.conf" on my RHL9 box (which is a symbolic link to "/boot/grub/grub.conf").
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