CVE-2026-46146: Linux vulnerability

CVE-2026-46146: ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3() The convert_chmap_v3() has a loop with its increment size of cs_desc->wLength, but we forgot to validate cs_desc->wLength itself, which may lead to potential endless loop by a malformed descriptor. Add a proper size check to abort the loop for plugging the hole.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 15, 2026, 01:20 UTC (UTC+00:00)

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 28, 2026, 09:36 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

1ADP providers

10Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
May 13, 2026, 15:03 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
May 28, 2026, 09:36 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 15, 2026, 01:20 UTC (UTC+00:00)

ADP provider summaries

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9CVE reference, Linux
https://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581CVE reference, Linux
https://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72aCVE reference, Linux
https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96dCVE reference, Linux
https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483dCVE reference, Linux
https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8CVE reference, Linux
https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3CVE reference, Linux
https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cdCVE reference, Linux
https://cert-portal.siemens.com/productcert/html/ssa-784472.htmlCVE reference, siemens-SADP

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux786571b10b1ae6d90e1242848ce78ee7e1d493c4, 275e37532e8ebe25e8a4069b2d9f955bfd202a46, 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902, 1034719fdefd26caeec0a44a868bb5a412c2c1a5, ae17b3b5e753efc239421d186cd1ff06e5ac296e, ecfd41166b72b67d3bdeb88d224ff445f6163869, ecfd41166b72b67d3bdeb88d224ff445f6163869, ecfd41166b72b67d3bdeb88d224ff445f6163869, 799c06ad4c9c790c265e8b6b94947213f1fb389c, dfdcbcde5c20df878178245d4449feada7d5b201, 7ef3fd250f84494fb2f7871f357808edaa1fc6ce, 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.43, 5.4.297, 6.15.11, 6.16.2unaffected

LinuxLinux6.17, 0, 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1affected

Weakness

CWE details

No CWE listed

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