If a duplicate attribute is found using kset_find_obj(), a reference
to that attribute is returned which needs to be disposed accordingly
using kobject_put(). This issue likely first appeared inside the
dell-wmi-sysman driver, see
commit 7295a996fdab ("platform/x86: dell-sysman: Fix reference leak").
However, it also seems that the bug was copied from this driver into
the think-lmi and hp-bioscfg drivers. Maybe a more abstract
fw_attr_class could prevent such issues in the future by abstracting
away the kobject handling?
Armin Wolf (2):
platform/x86: think-lmi: Fix reference leak
platform/x86: hp-bioscfg: Fix reference leak
drivers/platform/x86/hp/hp-bioscfg/bioscfg.c | 14 ++++++++----
drivers/platform/x86/think-lmi.c | 24 ++++++++++++++++----
2 files changed, 30 insertions(+), 8 deletions(-)
--
2.39.2
