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(parent: 3a34c98) | patch
debugfs: fix debugfs_rename parameter checking
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 23 Jan 2019 10:27:02 +0000 (11:27 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 25 Jan 2019 11:56:32 +0000 (12:56 +0100)
commitd88c93f090f708c18195553b352b9f205e65418f
tree76d7cecb24578d4a38e2aca3f827c52501508afetree | snapshot
parent3a34c986324c07dde32903f7bb262e6138e77c2acommit | diff
debugfs: fix debugfs_rename parameter checking

debugfs_rename() needs to check that the dentries passed into it really
are valid, as sometimes they are not (i.e. if the return value of
another debugfs call is passed into this one.)  So fix this up by
properly checking if the two parent directories are errors (they are
allowed to be NULL), and if the dentry to rename is not NULL or an
error.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/debugfs/inode.c diff | blob | history
Domain: System / Kernel;