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CVE-2026-90068

Unknown

Last modified

CVE-2026-90068 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk.

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk. The value MUX handler it deleted used >= there, and the snd_soc_put_enum_double() in soc-ops.c still does. Only adav80x pairs a value table with two shifts, and its second channel looks accidental, but the control does report two values. Writing three into it reads off the end of adav80x_mux_values. The core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which defaults off.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3727b4968453dbab8fe18f979d67285eb6b66801, < 57ab955bde747327fb2042516ae1b7192c30e881; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 806fa4e1f2bf73c54bc4b6360790ecc69d095ca5; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 496081b4edc1f6e662418831c5b14cddd8d7920c; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < faf539af1a595a26e5a081a4e512caee2bc2f4c5; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 32fc048391112559c34cb88d13594546939a4cd6; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 10a36512c21f861a03fba461a7ead09023df9c1b; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 55126ef66298e43c69f192acebae8c7cc0022cf6; >= 3727b4968453dbab8fe18f979d67285eb6b66801, < 14511c9b54ceeeef487409d73947c89ee8563590
LinuxLinux3.15

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90068?
In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk. The value MUX handler it deleted used >= there, and the snd_soc_put_enum_double() in soc-ops.c still does. Only adav80x pairs a value table with two shifts, and its second channel looks accidental, but the control does report two values. Writing three into it reads off the end of adav80x_mux_values. The core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which defaults off.
How severe is CVE-2026-90068?
Severity scoring for CVE-2026-90068 is pending analysis.
How do I fix CVE-2026-90068?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST