[PATCH 0/8] ALSA: check snd_ctl_new1() return before dereferencing

[Ruoyu Wang <ruoyuw560@gmail.com>]

Several ALSA drivers dereference the pointer returned by snd_ctl_new1()
to adjust id.device, id.index, or store bookkeeping pointers before
calling snd_ctl_add().  snd_ctl_new1() can return NULL on allocation
failure, making these writes a NULL pointer dereference.

This series adds NULL checks to all affected call sites found by static
analysis.

Ruoyu Wang (8):
  ALSA: es18xx: check control allocation before private data setup
  ALSA: gus: check PCM volume control allocation
  ALSA: cmipci: check S/PDIF control allocations
  ALSA: es1938: check control allocation before private data setup
  ALSA: ice1712: aureon: check CS8415 control allocation
  ALSA: ice1712: check pro S/PDIF control allocations
  ALSA: ice1724: check S/PDIF control allocations
  ALSA: ymfpci: check S/PDIF control allocations

 sound/isa/es18xx.c              | 4 ++++
 sound/isa/gus/gus_pcm.c        | 2 ++
 sound/pci/cmipci.c             | 6 ++++++
 sound/pci/es1938.c             | 2 ++
 sound/pci/ice1712/aureon.c     | 2 ++
 sound/pci/ice1712/ice1712.c    | 8 ++++++++
 sound/pci/ice1712/ice1724.c    | 6 ++++++
 sound/pci/ymfpci/ymfpci_main.c | 6 ++++++
 8 files changed, 36 insertions(+)

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2.34.1