[alsa-devel] [PATCH 0/2] ALSA: control: Race fix and cleanup for user ctls

Hi,

there seems a possible race between addition and removal of a user ctl element as spotted by syzkaller. This patchset addresses it and also provides a cleanup thereafter. The first one should go to 4.20 while the second one should go for 4.21.

Takashi

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Takashi Iwai (2): ALSA: control: Fix race between adding and removing a user element ALSA: control: Consolidate helpers for adding and replacing ctl elements

sound/core/control.c | 171 ++++++++++++++++++++----------------------- 1 file changed, 81 insertions(+), 90 deletions(-)