Greg Kroah-Hartman de5ae40870 debugfs: be more robust at handling improper input in debugfs_lookup() ... commit bc6de804d3 upstream. debugfs_lookup() doesn't like it if it is passed an illegal name pointer, or if the filesystem isn't even initialized yet. If either of these happen, it will crash the system, so fix it up by properly testing for valid input and that we are up and running before trying to find a file in the filesystem. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: stable <stable@vger.kernel.org> Reported-by: Michael Walle <michael@walle.cc> Tested-by: Michael Walle <michael@walle.cc> Tested-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210218100818.3622317-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-04 10:26:09 +01:00
..
file.c	debugfs: Fix module state check condition	2020-09-17 13:47:55 +02:00
inode.c	debugfs: be more robust at handling improper input in debugfs_lookup()	2021-03-04 10:26:09 +01:00
internal.h	debugfs: Remove redundant license text	2017-11-07 20:25:03 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00