Linux Kernel: ASoC SOF sof-audio double decrement use_count bug
CVE-2026-80911 Published on September 4, 2026
ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked()
In the Linux kernel, the following vulnerability has been resolved:
ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked()
If either tplg_ops->dai_config or widget_kcontrol_setup fail during widget
setup we would double decrement the use_count of the widget because the
sof_widget_free_unlocked() would be called twice, similarly the core_put
would be invoked twice as well.
Since the use_count and core_put() is handled within the widget_free
function we need to return without falling through the pipe_widget_free
label.
The fixes tag is picked to the last change around this part of the code
which is adequately old enough for backporting purposes.
Products Associated with CVE-2026-80911
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Affected Versions
Linux:- Version 3c124f09b7ff0434b076a8dec1ed446a6170b549 and below b270ed327380428581bbcbd85707f62e942428d7 is affected.
- Version 31ed8da1c8e5e504710bb36863700e3389f8fc81 and below c06995637f6a4667f2b540ac65315bfc8196a099 is affected.
- Version 31ed8da1c8e5e504710bb36863700e3389f8fc81 and below 8cba53b862e1437257ec206d303ff942684284f1 is affected.
- Version 31ed8da1c8e5e504710bb36863700e3389f8fc81 and below d48691e70d4a9434b71039d4ed12bb0df4601acf is affected.
- Version 31ed8da1c8e5e504710bb36863700e3389f8fc81 and below e780e4917d43683224812400fe3dc4816fceba75 is affected.
- Version 6.6.13 and below 6.6.153 is affected.
- Version 6.7 is affected.
- Before 6.7 is unaffected.
- Version 6.6.153, <= 6.6.* is unaffected.
- Version 6.12.105, <= 6.12.* is unaffected.
- Version 6.18.46, <= 6.18.* is unaffected.
- Version 7.1.10, <= 7.1.* is unaffected.
- Version 7.2, <= * is unaffected.