[v2,0/2] platform/x86: Fix reference leaks

Message

Armin Wolf Sept. 25, 2023, 1:25 p.m. UTC

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(-)

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2.39.2