CVE-2026-68346
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: validate and free ACPI mute object cs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI mute state and reads the first byte from the returned object. However, the returned ACPI object is owned by the caller and is never freed after use, so each successful query leaks the _DSM result object. The code also assumes that the returned object is a buffer with at least one byte. A malformed firmware response can return a different object type or an empty buffer, and the direct ret->buffer.pointer dereference can then access an invalid pointer. Use the typed _DSM helper, validate that the returned buffer contains at least one byte, and free the ACPI object after reading it.
Affected versions
Linux kernel versions
6.7
and later are affected. Fixed in
6.12.101,
6.18.42,
7.1.6,
7.2
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-68346?
CVE-2026-68346 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.7 onward and has been patched in 6.12.101, 6.18.42, 7.1.6 and others. CVE-2026-68346 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-68346?
Yes. CVE-2026-68346 has been patched. Fixed versions include 6.12.101, 6.18.42, 7.1.6 and others. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-68346 actively exploited?
No. CVE-2026-68346 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.