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authorAlexander Lochmann <alexander.lochmann@tu-dortmund.de>2018-12-14 11:55:52 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2019-04-28 21:46:57 -0400
commitf69e749a49353d96af1a293f56b5b56de59c668a (patch)
treeccf6a64b148cfc4102dade591f0139a597bbbb34 /README
parentee948837d7fa89127373c139766aacf6b02a9225 (diff)
downloadlinux-f69e749a49353d96af1a293f56b5b56de59c668a.tar.bz2
Abort file_remove_privs() for non-reg. files
file_remove_privs() might be called for non-regular files, e.g. blkdev inode. There is no reason to do its job on things like blkdev inodes, pipes, or cdevs. Hence, abort if file does not refer to a regular inode. AV: more to the point, for devices there might be any number of inodes refering to given device. Which one to strip the permissions from, even if that made any sense in the first place? All of them will be observed with contents modified, after all. Found by LockDoc (Alexander Lochmann, Horst Schirmeier and Olaf Spinczyk) Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Alexander Lochmann <alexander.lochmann@tu-dortmund.de> Signed-off-by: Horst Schirmeier <horst.schirmeier@tu-dortmund.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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